Tropical forests play an important role of storing significant quantities of carbon, both, aboveground and belowground. However, deforestation activities for various purposes, among them, agriculture and settlement, have continued to remove unknown quantities of biomass and carbon stocks across tropical forests of Africa. This study was conducted to estimate aboveground tree biomass (AGB), carbon stocks (AGCS) and carbon dioxide equivalent (CO2 e) among three vegetation cover types (wooded land, bushland and grassland) found in Mapfungautsi forest and to quantify the long-term estimated total AGB, AGCS and CO2 e lost due to deforestation activities in the forest (between the year 2000 and 2020). Data collection was conducted using remote sensing imagery, field measurements and an allometric equation. A total of 22 plots, each measuring 50m x50m were established across the three vegetation cover types where tree height, diameter at breast height, number of stems/ha and regeneration were measured. The collected data was analysed using EViews Version 10 software. Wooded land generally had the highest values across all the four tree growth variables followed by bushland and grassland. The average estimated AGB stored were 50.78t/ha, 14.7t/ha and 8.2 t/ha for wooded land, bushland and grassland respectively. From the 10632ha cleared over 20 years, losses amounting to an estimated mean total AGB, AGCS and CO2 e of 387669.53t, 182205.09t and 668692.69t respectively were observed. We conclude that quantifying and raising awareness about the lost AGB, AGCS and CO2 e among stakeholders will lead to the implementation of remedial action to replenish the lost biomass and carbon stocks.
Application of Allometric Equation for Estimating Above-Ground Biomass and Ca...AI Publications
Urban trees play a crucial role and natural role in sequestrating carbon from the atmosphere. This study estimates the above ground biomass, carbon stock and carbon dioxide equivalent of urban trees in southern part of Benin Republic. A complete enumeration of street trees was carried out from which 1119 trees were observed and measured for total height and diameter at breast height. Above ground biomass and carbon stock of trees were estimated using allometric equation, because tree carbon stocks are generally not measured directly whenever the biomass estimation involves rare tree species or trees that are meant for protective and aesthetic purposes. The results of the analysis indicated that the total above ground biomass, carbon stock and carbon dioxide equivalent were 1306.097mt, 613.883mt and 2250.647mt respectively. All trees encountered during data collection belonged to Casuarinaceae, Combretaceae Fabaceae, Myrtaceae, Sterculiaceae, Verbenaceae and Meliaceae families and they comprised eleven different tree species with Khaya senegalensis as the dominant tree species. It can be concluded from this study that the urban trees in southern part of Benin act as a reservoir of atmospheric carbon dioxide and further play important part in the global climate change mitigation.
Structure, Biomass Carbon Stock and Sequestration Rate of Mangroves in the Ba...ijtsrd
The forest plays a major role in stabilizing increasing temperatures due to its climate mitigation capacity. This is not unconnected to the carbon storing and sequestration potentials of forests. The mangrove as one of the global forest types is said to be a major carbon store. This conclusion is characterized by some knowledge gaps on the actual carbon stock and sequestration potentials of some mangroves forest on the Central African Sub regional landscape. Some of these areas are the Bakassi mangroves in the South West Cameroon. Cross border conflicts, piracy and over exploitation have rendered the sourcing of appropriate data on its carbon stock and sequestration potentials difficult. In strive to bridge this knowledge gap, this work carried out a baseline assessment of the carbon stock and sequestration rate of the area. To achieve the study objectives, stratified random opportunistic sampling inventory design based on five forest canopy height classes, tree Diameter at Breast Height DBH and canopy nature using digital elevation model DEM of the shuttle Radar Topographic Mission SRTM . This combination evaluated the species type and forest structure around the areas. Carbon stocks were estimated with the use of allometric equations using biomass data collected within main plots, sub plots, micro plots and transects. Results showed that mean biomass carbon stock density for the height classes for Bakassi ranged from 33.5 Mg ha to 598.9Mg ha. Thus on average, for a hectare in Bakassi, the carbon stock is 880.437 Mg ha and a sequestration rate of 3231.204 tCO2e ha . Kamah Pascal Bumtu | Nkwatoh Athanasius Fuashi | Longonje Simon Ngomba ""Structure, Biomass Carbon Stock and Sequestration Rate of Mangroves in the Bakassi Peninsula, S-W Cameroon"" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-2 , February 2020,
URL: https://www.ijtsrd.com/papers/ijtsrd30171.pdf
Paper Url : https://www.ijtsrd.com/humanities-and-the-arts/environmental-science/30171/structure-biomass-carbon-stock-and-sequestration-rate-of-mangroves-in-the-bakassi-peninsula-s-w-cameroon/kamah-pascal-bumtu
A MODEL TO ESTIMATE STORED CARBON IN THE UPLAND FORESTS OF THE WANGGU WATERSHEDAsramid Yasin
Abstract
Climate change coupled with deforestation has brought about an increase in greenhouse gas emissions in the
atmosphere. One way to control climate change is to reduce greenhouse gas emissions by maintaining the integrity
of natural forests and increasing the density of tree populations. This research aimed to (a) identifies the density
of stand trees in the upland forests of the Wanggu Watershed; (b) analyze the potential carbon stocks contained in
the upstream forests of the Wanggu Watershed; (c) develop a model to estimate potential carbon stocks in the
upland forests of the Wanggu Watershed. The land cover classification in this study used the guided classification
with the Object-Based Image algorithm. Normalized Difference Vegetation Index (NDVI) was employed as an
indicator of vegetation cover density. Field measurements were carried out by calculating the diameter of the stand
trees in 30 observation plots. Field biomass values were obtained through allometric equations. Regression analysis
was conducted to determine the correlation between NDVI densities and field biomass. The results showed that
the best equation for estimating potential carbon stocks in the Wanggu Watershed forest area was y = 3.48 (Exp.
7,435x), with an R2 of 50.2%. Potential above ground biomass carbon in the Wanggu Watershed based on NDVI
values was 414,043.26 tons in 2019, consist of protected forest areas of 279,070.15 tons and production forests of
134,973.11 tons. While total above biomass carbon based on field measurement reached 529,541.01 tons, consist
of protected forests of 419,197.82 tons and production forests of 110,343.20 tons.
Mapping of Wood Carbon Stocks in the Classified Forest of Wari-Maro in Benin ...AI Publications
The Emissions Reducing program related to Deforestation and Forest Degradation (Redd +) calls for the development of approaches to quantify and spatialize forest carbon in order to design more appropriate forest management policies. The mapping of carbon stocks was done in the Wari-Maro Forest Reserve. To achieve this, forest inventory data (in situ) and remotely sensed data (Landsat 8 image) were used to construct a wood carbon stock forecasting model. Simple linear regression was used to test the correlation between these two variables. In situ surveys indicate that 64% of carbon stocks are contributed by forest formations, 32.72% are provided by savannah formations and 3.27% are from anthropogenic formations. The quantitative relationship between NDVI and carbon in situ shows a very good correlation with a high coefficient of determination R² = 91%. The carbon map generated from the model identified fronts of deforestation through their low carbon content. This remote sensing approach indicates that forest formations sequester 60% of forest carbon. The savannah formations reserve 33%, the anthropic formations bring only 6% of the stocks. Mapping has further captured the spatial variability among land use types, thus providing arguments to fully meet the objectives of Redd +.
Climate Change and Forest Management: Adaptation of Geospatial Technologiesrsmahabir
eraction with the environment, has led to increased concerns about the impact of such disruption on major areas of sustainable development. This has resulted in various innovations in technology, policy and forged alliances at regional and international scales in an effort to reduce humans’ impact on climate. Forests provide a suitable option for reducing the net amount of carbon dioxide in the atmosphere by acting as carbon sinks, thereby forming one part of a more complete solution for combating climate change. At the same time, forests are also sensitive to changes in climate, making sustainable forest management a critical component of present and future climate change strategies. This paper examines the contribution of geospatial technologies in supporting sustainable forest management, emphasizing its use in the classification of forests, estimation of their structure, detecting change and modeling of carbon stocks.
Application of Allometric Equation for Estimating Above-Ground Biomass and Ca...AI Publications
Urban trees play a crucial role and natural role in sequestrating carbon from the atmosphere. This study estimates the above ground biomass, carbon stock and carbon dioxide equivalent of urban trees in southern part of Benin Republic. A complete enumeration of street trees was carried out from which 1119 trees were observed and measured for total height and diameter at breast height. Above ground biomass and carbon stock of trees were estimated using allometric equation, because tree carbon stocks are generally not measured directly whenever the biomass estimation involves rare tree species or trees that are meant for protective and aesthetic purposes. The results of the analysis indicated that the total above ground biomass, carbon stock and carbon dioxide equivalent were 1306.097mt, 613.883mt and 2250.647mt respectively. All trees encountered during data collection belonged to Casuarinaceae, Combretaceae Fabaceae, Myrtaceae, Sterculiaceae, Verbenaceae and Meliaceae families and they comprised eleven different tree species with Khaya senegalensis as the dominant tree species. It can be concluded from this study that the urban trees in southern part of Benin act as a reservoir of atmospheric carbon dioxide and further play important part in the global climate change mitigation.
Structure, Biomass Carbon Stock and Sequestration Rate of Mangroves in the Ba...ijtsrd
The forest plays a major role in stabilizing increasing temperatures due to its climate mitigation capacity. This is not unconnected to the carbon storing and sequestration potentials of forests. The mangrove as one of the global forest types is said to be a major carbon store. This conclusion is characterized by some knowledge gaps on the actual carbon stock and sequestration potentials of some mangroves forest on the Central African Sub regional landscape. Some of these areas are the Bakassi mangroves in the South West Cameroon. Cross border conflicts, piracy and over exploitation have rendered the sourcing of appropriate data on its carbon stock and sequestration potentials difficult. In strive to bridge this knowledge gap, this work carried out a baseline assessment of the carbon stock and sequestration rate of the area. To achieve the study objectives, stratified random opportunistic sampling inventory design based on five forest canopy height classes, tree Diameter at Breast Height DBH and canopy nature using digital elevation model DEM of the shuttle Radar Topographic Mission SRTM . This combination evaluated the species type and forest structure around the areas. Carbon stocks were estimated with the use of allometric equations using biomass data collected within main plots, sub plots, micro plots and transects. Results showed that mean biomass carbon stock density for the height classes for Bakassi ranged from 33.5 Mg ha to 598.9Mg ha. Thus on average, for a hectare in Bakassi, the carbon stock is 880.437 Mg ha and a sequestration rate of 3231.204 tCO2e ha . Kamah Pascal Bumtu | Nkwatoh Athanasius Fuashi | Longonje Simon Ngomba ""Structure, Biomass Carbon Stock and Sequestration Rate of Mangroves in the Bakassi Peninsula, S-W Cameroon"" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-2 , February 2020,
URL: https://www.ijtsrd.com/papers/ijtsrd30171.pdf
Paper Url : https://www.ijtsrd.com/humanities-and-the-arts/environmental-science/30171/structure-biomass-carbon-stock-and-sequestration-rate-of-mangroves-in-the-bakassi-peninsula-s-w-cameroon/kamah-pascal-bumtu
A MODEL TO ESTIMATE STORED CARBON IN THE UPLAND FORESTS OF THE WANGGU WATERSHEDAsramid Yasin
Abstract
Climate change coupled with deforestation has brought about an increase in greenhouse gas emissions in the
atmosphere. One way to control climate change is to reduce greenhouse gas emissions by maintaining the integrity
of natural forests and increasing the density of tree populations. This research aimed to (a) identifies the density
of stand trees in the upland forests of the Wanggu Watershed; (b) analyze the potential carbon stocks contained in
the upstream forests of the Wanggu Watershed; (c) develop a model to estimate potential carbon stocks in the
upland forests of the Wanggu Watershed. The land cover classification in this study used the guided classification
with the Object-Based Image algorithm. Normalized Difference Vegetation Index (NDVI) was employed as an
indicator of vegetation cover density. Field measurements were carried out by calculating the diameter of the stand
trees in 30 observation plots. Field biomass values were obtained through allometric equations. Regression analysis
was conducted to determine the correlation between NDVI densities and field biomass. The results showed that
the best equation for estimating potential carbon stocks in the Wanggu Watershed forest area was y = 3.48 (Exp.
7,435x), with an R2 of 50.2%. Potential above ground biomass carbon in the Wanggu Watershed based on NDVI
values was 414,043.26 tons in 2019, consist of protected forest areas of 279,070.15 tons and production forests of
134,973.11 tons. While total above biomass carbon based on field measurement reached 529,541.01 tons, consist
of protected forests of 419,197.82 tons and production forests of 110,343.20 tons.
Mapping of Wood Carbon Stocks in the Classified Forest of Wari-Maro in Benin ...AI Publications
The Emissions Reducing program related to Deforestation and Forest Degradation (Redd +) calls for the development of approaches to quantify and spatialize forest carbon in order to design more appropriate forest management policies. The mapping of carbon stocks was done in the Wari-Maro Forest Reserve. To achieve this, forest inventory data (in situ) and remotely sensed data (Landsat 8 image) were used to construct a wood carbon stock forecasting model. Simple linear regression was used to test the correlation between these two variables. In situ surveys indicate that 64% of carbon stocks are contributed by forest formations, 32.72% are provided by savannah formations and 3.27% are from anthropogenic formations. The quantitative relationship between NDVI and carbon in situ shows a very good correlation with a high coefficient of determination R² = 91%. The carbon map generated from the model identified fronts of deforestation through their low carbon content. This remote sensing approach indicates that forest formations sequester 60% of forest carbon. The savannah formations reserve 33%, the anthropic formations bring only 6% of the stocks. Mapping has further captured the spatial variability among land use types, thus providing arguments to fully meet the objectives of Redd +.
Climate Change and Forest Management: Adaptation of Geospatial Technologiesrsmahabir
eraction with the environment, has led to increased concerns about the impact of such disruption on major areas of sustainable development. This has resulted in various innovations in technology, policy and forged alliances at regional and international scales in an effort to reduce humans’ impact on climate. Forests provide a suitable option for reducing the net amount of carbon dioxide in the atmosphere by acting as carbon sinks, thereby forming one part of a more complete solution for combating climate change. At the same time, forests are also sensitive to changes in climate, making sustainable forest management a critical component of present and future climate change strategies. This paper examines the contribution of geospatial technologies in supporting sustainable forest management, emphasizing its use in the classification of forests, estimation of their structure, detecting change and modeling of carbon stocks.
Ecosystem Carbon Storage and Partitioning in Chato Afromontane Forest: Its Cl...IJEAB
Forests trap carbon dioxide (CO2) from the atmosphere, store in the form of carbon (C) and regulate climate change. In this study, C storage and climate change mitigation potential of Chato Afromontane forest was assessed from measurement of the major pools including the aboveground biomass, belowground biomass, dead tree biomass, plant litter and soil organic carbon (SOC). The result showed that biomass accumulation was comparatively larger for natural forest than plantations due to maturity, intactness and species diversity. The total C storage capacity of the forest ranged from 107.12 Mg ha-1 for acacia plantation to 453.21 Mg ha-1 for the intact natural forest. The mean C storage capacity by major pools ranged from 1.36 Mg ha-1 for the dead tree C to 157.95 Mg ha-1 for the aboveground C pool. The forest ecosystem accumulated a total of nearly 6371.30 Gg C in the vegetation plus soil to a depth of 60 cm. Conservation of the sacred forest will have an imperative implication to net positive C addition and regulation of climate change.
Carbon stock of woody species along Altitude gradient in Alemsaga Forest, Sou...Agriculture Journal IJOEAR
Purpose: Forest ecosystems play a significant role in the climate change mitigation and biodiversity conservation. Therefore carbon determination provide clear indications of the possibilities of promoting forest development and management for mitigating of climate change through soil and vegetation carbon sequestration. The study was carried out to quantify carbon stock potential in Alemsaga Forest, South Gondar zone. Research method: Vegetation data Collection was made using a systematic sampling method; laying six transect lines with 500 m apart and 54 quadrants of 20 m X 20 m established 200 m distant to each other along the transect lines. In these plots, abundance, DBH and heights of all woody species were recorded, and soil sample was collected 1m X1m from the four corners and center of each quadrant. General allometric model was used for estimating above and belowground biomass. The organic carbon content of the soil samples was determined in the laboratory. Finding: A total of 66 woody plant species belong to 42 families were identified, Fabaceae was the most dominant families. The total mean above and belowground carbon stock was 216.86 ton/ha and 114.71 ton/ha respectively and soil organic carbon (SOC) 103.15 ton/ha. Above and belowground carbon increased as altitude decreased, but SOC increases with increase of altitude. Originality/value: Carbon stock estimation in the forest helps to manage the forests sustainably from the ecological, economic and environmental points of view and opportunities for economic benefit through carbon trading to farmers.
Above ground biomass and carbon stock estimation of Arroceros Forest Park "Th...Innspub Net
In an area where urbanization is rapidly growing, carbon is slowly sequestered which clogs the ozone layer. With forest biomass, carbon is easily sequestered and stored by trees. This research focuses on the potential carbon storage of the Arroceros Forest Park, one of the last lungs of the metropolis located in the heart of the National Capital Region, Manila, Philippines. Trees with ≥10 cm diameter at breast height (DBH) were inventoried, from two (2) hectare area of site. These trees were used in the estimation of the biomass and carbon stock. The Power-Fit Equation from Banaticla (insert year), = 0.342 (DBH (exp (0.73))) was used in the study. Results showed that Swietenia macrophylla dominated the park. Species with highest contribution of biomass and carbon is the Swietenia macrophylla with value of 149.55t/ha. The carbon formed from this was 45%, and estimated carbon stock present is 30.59Ct/ha. Total aboveground biomass and carbon stock in the forest park is estimated at 640.21t/ha, and 130.95Ct/ha, respectively. Provided the carbon stock estimate, this could give more importance to Arroceros Forest Park in carbon sequestration. Site must be protected and enhanced to promote the important role of green spaces in Metro Manila.
An Emergent Carapa oreophila Products Value Chain – A Case Study of The Kilum...AI Publications
This study focused on the tradable products of Carapaoreophilaand employs ethnobotanic quantitative methods. Semi-structured ethnobotanical questionnaires were conducted to collect information on general knowledge of Carapa oreophila, characteristics of informants; plant parts exploited as well as gathering; processing and storage methods. The reasons for use: market value, points of sales, means of transport, trade channels, constraints and their opinion on resource availability. Ethnobotanic method and descriptive statistic were employed to measure the effect of product exploitation. This paper exposes three traded Carapaoreophilaproducts with high market value. Fuel wood and leave-rodent chain had high market value and high turnovers while wood craft goods, hoe and axe handles had high turnovers but low market value. Leave harvesters are also fuelwood suppliers. The incomes earned by harvesters of the Carapa products are used to meet their domestic demand for money or liquidity preference. Unfortunately, harvest methods and techniques are unhealthy and do not contribute to secure the forest resource. Given its multipurpose uses, we recommend the promotion and enhancement of Carapa oreophila through its domestication and seed oil production to provide significant socio-economic benefits to the local people. To this end, it is necessary to implement strategies to support local communities to actively participate in the conservation and sustainable use of the species as part of the preservation of plant biodiversity.
Floristic composition, diversity and structure of woody vegetation in the agr...Open Access Research Paper
The objective of this study is to characterize the current status of woody species in agrosystems and to identify ecologically important woody species that favor agriculture-livestock integration in the context of strong anthropic pressures in the Maradi region. The ground forest inventory method was used to characterize woody vegetation in three sites in the departments of Dakoro (north), Guidan Roumdji (center) and Madarounfa (south). A total of 187 plots were installed, each with a surface area of 2500m². Data collected included species list, total height, diameter at 1.30m from the ground and both perpendicular diameters of the crown, and natural regeneration of woody species. The results show that the southern zone has more species (17) divided into 9 families, followed by the central zone with 16 species and 12 families and finally the northern zone with 9 species and 7 families. The diversity decreases from the south (3.01 bites), center (2.27) and north (1.76 bites). As for the dendrometric parameters, the difference is significant (P ˂ 0.000) with greater values of average height, diameter at 1.30 m from the ground and basal area of the trees in the southern area. It is not significant between ecological zones the basal area of trees (P = 0.9). Faidherbia albida and Piliostigma reticulatum were the most ecologically important species distributed in all three zones. The overall diameter class and height structure imputed by the dominant species shows a negative skewed distribution of the disturbed stand in all three ecological zones. Regeneration is 747±65 (ft/ha), 2136±177 (ft/ha), and 1018±63 (ft/ha) in the north, center, and south, respectively, with a highly significant difference (P=0.000). This regeneration is an important source for re-greening the fields if maintained. This study provides important results that can be used to refine the management of agroforestry parks for various ecosystem services for the benefit of populations.
Measuring Individual Tree Height and Crown Diameter for Mangrove Trees with A...INFOGAIN PUBLICATION
Mangroves are unique ecosystems that provide valuable coastal area habitats, protection, and services. Access to observing mangrove forests is typically difficult on the ground. Therefore, it is of interest to develop and evaluate remote sensing methods that enable us to obtain accurate information on the structure of mangrove forests and to monitor their condition in time. The main objective of this study was to develop a methodology for processing airborne lidar data for measuring height and crown diameter for mangrove forests in the north-eastern coastal areas of Brazil. Specific objectives were to: (1) evaluate the most appropriate lidar data processing approach, such as area-based or individual tree methods, (2) investigate the most appropriate parameters for lidar-derived data products when estimating height and crown diameter, such as the spatial resolution of canopy height models and ground elevation models; and (3) compare the accuracy of lidar estimates to field measurements of height and crown diameter. The lidar dataset was acquired over mangrove forest of the northeast of Brazil. The crown diameter was calculated as the average of two values measured along two perpendicular directions from the location of each tree top by fitting a fourth-degree polynomial on both profiles. The lidar-derived tree measurements were used with regression models and cross-validation to estimate plot level field-measured crown diameter. Root mean square error, linear regression and the Nash-Sutcliffe coefficient were also used to compare lidar height and field height. The mean of lidar-estimated tree height was 9,48m and the mean of field tree height was 8.44m. The correlation between lidar tree height and field tree height was r= 0.60, E=-0.06 and RMSE= 2.8. The correlation between height and crown diameter needed to parameterized the individual tree identification software obtained for 32 trees was r= 0.83 and determination coefficient was r2 = 0.69. The results of the current study show that lidar data could be used to estimate height and average crown diameter of mangrove trees and to improve estimates of other mangrove forest biophysical parameters of interest by focusing at the individual tree level. The research presented in this study contributes to the overall knowledge of using lidar remote sensing to measure and monitor mangrove forests.
Measuring Individual Tree Height and Crown Diameter for Mangrove Trees with A...INFOGAIN PUBLICATION
Mangroves are unique ecosystems that provide valuable coastal area habitats, protection, and services. Access to observing mangrove forests is typically difficult on the ground. Therefore, it is of interest to develop and evaluate remote sensing methods that enable us to obtain accurate information on the structure of mangrove forests and to monitor their condition in time. The main objective of this study was to develop a methodology for processing airborne lidar data for measuring height and crown diameter for mangrove forests in the north-eastern coastal areas of Brazil. Specific objectives were to: (1) evaluate the most appropriate lidar data processing approach, such as area-based or individual tree methods, (2) investigate the most appropriate parameters for lidar-derived data products when estimating height and crown diameter, such as the spatial resolution of canopy height models and ground elevation models; and (3) compare the accuracy of lidar estimates to field measurements of height and crown diameter. The lidar dataset was acquired over mangrove forest of the northeast of Brazil. The crown diameter was calculated as the average of two values measured along two perpendicular directions from the location of each tree top by fitting a fourth-degree polynomial on both profiles. The lidar-derived tree measurements were used with regression models and cross-validation to estimate plot level field-measured crown diameter. Root mean square error, linear regression and the Nash-Sutcliffe coefficient were also used to compare lidar height and field height. The mean of lidar-estimated tree height was 9,48m and the mean of field tree height was 8.44m. The correlation between lidar tree height and field tree height was r= 0.60, E=-0.06 and RMSE= 2.8. The correlation between height and crown diameter needed to parameterized the individual tree identification software obtained for 32 trees was r= 0.83 and determination coefficient was r2 = 0.69. The results of the current study show that lidar data could be used to estimate height and average crown diameter of mangrove trees and to improve estimates of other mangrove forest biophysical parameters of interest by focusing at the individual tree level. The research presented in this study contributes to the overall knowledge of using lidar remote sensing to measure and monitor mangrove forests.
Measuring Individual Tree Height and Crown Diameter for Mangrove Trees with A...INFOGAIN PUBLICATION
Mangroves are unique ecosystems that provide valuable coastal area habitats, protection, and services. Access to observing mangrove forests is typically difficult on the ground. Therefore, it is of interest to develop and evaluate remote sensing methods that enable us to obtain accurate information on the structure of mangrove forests and to monitor their condition in time. The main objective of this study was to develop a methodology for processing airborne lidar data for measuring height and crown diameter for mangrove forests in the north-eastern coastal areas of Brazil. Specific objectives were to: (1) evaluate the most appropriate lidar data processing approach, such as area-based or individual tree methods, (2) investigate the most appropriate parameters for lidar-derived data products when estimating height and crown diameter, such as the spatial resolution of canopy height models and ground elevation models; and (3) compare the accuracy of lidar estimates to field measurements of height and crown diameter. The lidar dataset was acquired over mangrove forest of the northeast of Brazil. The crown diameter was calculated as the average of two values measured along two perpendicular directions from the location of each tree top by fitting a fourth-degree polynomial on both profiles. The lidar-derived tree measurements were used with regression models and cross-validation to estimate plot level field-measured crown diameter. Root mean square error, linear regression and the Nash-Sutcliffe coefficient were also used to compare lidar height and field height. The mean of lidar-estimated tree height was 9,48m and the mean of field tree height was 8.44m. The correlation between lidar tree height and field tree height was r= 0.60, E=-0.06 and RMSE= 2.8. The correlation between height and crown diameter needed to parameterized the individual tree identification software obtained for 32 trees was r= 0.83 and determination coefficient was r2 = 0.69. The results of the current study show that lidar data could be used to estimate height and average crown diameter of mangrove trees and to improve estimates of other mangrove forest biophysical parameters of interest by focusing at the individual tree level. The research presented in this study contributes to the overall knowledge of using lidar remote sensing to measure and monitor mangrove forests.
IMAGE PROCESSING AND CLUSTERING ALGORITHMS FOR FOREST COVER QUANTIFICATIONIAEME Publication
“Forest cover” refers to the relative land area covered by forests. Anthropological interventions and the subsequent diminishing forest cover, result in environmental degradation, impacting man-nature interactions. Hence, it became the need of the moment to monitor the forest cover to minimize natural perils and promote sustainable development. The present preliminary work focuses on implementing image processing and k- means clustering techniques on satellite imagery to monitor and quantify the forest cover of the Sundarbans delta, existing across India and Bangladesh. Imagebased algorithms relying on characteristic colouration were proposed for analysing the percentage of forest cover in the predefined area. Among various methods of monitoring and examining forest land, image-based algorithms can be of vital use due to the rise in the accessibility of information and the potential of analysing large data sets with the least processing time. The above-discussed techniques, along with the availability of Machine Learning (ML) and spaceborne photography, will have a futuristic impact on interpreting the variations in land cover and land utilization. Building upon the following algorithm, it is now conceivable to conduct timely comprehensive analysis, real-time evaluation, monitoring, and control on how events unfold. Similarly, data collected from various geographical observation systems may provide several other qualitative features that are more focused.
Levers for the transformation of land use on the periphery of the Haut-Sassan...Innspub Net
The development of the agricultural sector in Côte d’Ivoire has led to profound changes in forest cover in general and around the protected areas of the State in particular. The aim of this work is to give an account of the process of mutation of the rural space of the classified forest of Haut-Sassandra for a better conservation of the latter. To achieve this objective, satellite images dating from 1997, 2002, 2006, 2013 and 2018 have been classified followed by observations and field surveys. The results show a reduction in forest cover in favour of agriculture. In fact, the forested areas that occupied 18.4% of the landscape in 1997 fell to 4% in 2018 with a conversion of more than 80% of the forested areas to crops. The latter are dominated by three perennial crops with associated food crops. Among these perennial crops, cocoa and coffee are the old ones and are essentially cultivated on a forest cultivation precedent, thus leading to a rarefaction of forest areas. While cashew trees, the third perennial crop, are more recent and were introduced into the area as a result of the increasing scarcity of forest areas. Thus, cashew trees are essentially cultivated on previous crops grown on fallow land and old plantations.
THE POTENTIAL OF BLUE CARBON STOCKS AND CARBON DIOXIDE ABSORPTION IN MANGROVE...Asramid Yasin
Abstract— Indonesia is a country with the second-longest coastline globally and has the most extensive mangrove forests in the world. Mangrove forests are included in the blue carbon group, which per hectare store up to four times more carbon storage than tropical forests. Mangrove forests play an essential role in absorbing carbon emissions in the air and storing a lot of carbon compared to natural forests. This study aims to determine carbon storage and CO2 absorption in mangrove forests in Kabaena Barat Subdistrict, Bombana Regency. The data comes from direct measurements in the field, namely above-ground carbon, carried out without damaging trees, only covering carbon in tree vegetation. It is the largest proportion of carbon storage on land. The data collection used a survey method to identify mangrove species, circumference, tree trunk diameter at breast height (dbh), biomass, carbon storage, CO2 absorption, and 22 plots of plotted line method with eight transects. The results showed that 10 types of mangrove
species were found on the transect observation, namely Avicennia alba, Avicennia marina, Avicennia lanata, Avicennia sp., Bruguiera cylindrica, Bruguiera gymnorhiza, Rhizophora apiculata, Rhizophora mucronata, Sonneratia alba, and Xylocarpus granatum. With the total amount of biomass stored in Kabaena Barat Subdistrict's mangrove forests, Bombana Regency, is 6,664.93 tons ha-1 with carbon storage of 3,065.85 tons ha-1 and carbon dioxide absorption of 11,241.55 tons ha-1.
Forest landscape dynamics in the cotton basin of North BeninAI Publications
The agro-ecological zone of the cotton basin of North Benin is a rainfed cereal farming area. In addition, the area is one of the country's favourable Cotton growing areas, which affects the configuration of its landscape. This study analyses the dynamics of the forest landscape in the cotton basin of North Benin between 1986 and 2000. A multidimensional approach was used based on a participatory inventory, field observations and statistical analyses of data from the interpretation of SPOT images. Several indices were calculated, including the importance value of the degree of disturbance, the composition and spatial configuration indices of the landscape types. Then, the sample test matched to the 5% threshold of the disturbance levels obtained between 1986 and 2000 on the one hand and between 2000 and 2016 on the other hand to ensure their significance. The results of this study show two types of disturbance, namely natural (4) and anthropogenic (7). Analysis of these disturbances also shows that agriculture (IV = 0.97), overgrazing (IV = 0.88), timber and service harvesting (IV = 0.78) and carbonization (IV = 0.63) are the main human disturbances in the study area. In addition, there is rapid population growth (IV = 0.94) and climate disturbances (IV = 0.85). In addition, the forest landscape has seen an increase in the number of spots (from 666 in 1986 to 2419 in 2016) and a decrease in the total area. Similarly, the values of the contagion index, ranging from 82.32 in 1986 to 65.82 in 2016, reflect a very fragmented landscape. Thus, the fragmentation of the forest landscape in the cotton basin of North Benin raises, in a very particular way, the problem of the conservation of plant biodiversity.
Carbon Stock Estimation in Standing Tree of Chir Pine and Banj Oak Pure Fores...science journals
A study was conducted to measure carbon stock in two Van Panchayat forest of Garhwal Himalaya. For comparative study, we selected the degraded and non-degraded site in Pine and Oak Forest and estimated total carbon stock (above and below ground).
Potential Distribution and Conservation of Endangered Bird Anthus sokokensis ...AI Publications
Ruvu-South Coastal Forest Reserve forms one of the most important coastal forests in Eastern Africa coastal belt. It provides important ecological habitat for most endemic and endangered fauna and flora species including endangered Sokoke pipit bird (Anthussokokensis). The study evaluated the potential distribution and conservation of globally endangered Sokoke pipit bird in Ruvu Coastal Forest Reserve in Tanzania. Specifically the project assessed the current population size, distribution, and habitat conditions of Sokoke pipit bird in the study area. Using National Forest Inventory protocol, a total of 9 tagged line transects were established 900m from each other and sample plots of 50m x 30m were laid at every 400m along tagged transects. In each sample plot, information about forest floor conditions, forest gaps and signs for forest disturbances were assessed.Study recorded a total of 201 disturbance events along all 13 transects. Tree cutting events were observed at highest frequency rate with 71 incidences compared to others; followed by fire damage incidences. Also the study recorded 28 Sokoke pipit birds distributed in 5 sample plots among all 39 plots surveyed.The mean density ofS.pipit bird found is0.02 birds/ha, with a projected overall bird population estimated at 611 individuals in the entire forest. The study recommends further studies to other parts of the forest reserve so as to identify other fundamental niche, endangered and endemic species. Also to enhance of forest management by local authority and raise conservation awareness to address human-mediated forest destruction.
The Statutory Interpretation of Renewable Energy Based on Syllogism of Britis...AI Publications
The current production for energy consumption generates harmful impacts of carbon dioxide to the environment causing instability to sustainable development goals. The constitutional reforms of British Government serve to be an important means of resolving any encountered incompatibilities to political environment. This study aims to evaluate green economy using developed equation for renewable energy towards political polarization of corporate governance. The Kano Model Assessment is used to measure the equivalency of 1970 Patents Act to UK Intellectual Property tabulating the criteria for the fulfillment of sustainable development goals in respect to the environment, artificial intelligence, and dynamic dichotomy of administrative agencies and presidential restriction, as statutory interpretation development to renewable energy. The constitutional forms of British government satisfy the sustainable development goals needed to fight climate change, advocate healthy ecosystem, promote leadership of magnates, and delegate responsibilities towards green economy. The presidential partisanship must be observed to delineate parties of concerns and execute the government prescriptions in equivalence to the dichotomous relationship of technology and the environment in fulfilling the rights and privileges of all citizens. Hence, the political elites can execute corporate governance towards sustainable development of renewable energy promoting environmental parks and zero emission target of carbon dioxide discharges. The economic theory developed in statutory interpretation for renewable energy serves as a tool to reduce detrimental impacts of carbon dioxide to the environment, mitigate climate change, and produce artefacts of bioenergy and artificial intelligence promoting sustainable development. It is suggested to explore other vulnerabilities of artificial intelligence to prosper economic success.
Enhancement of Aqueous Solubility of Piroxicam Using Solvent Deposition SystemAI Publications
Piroxicam is a non-steroidal anti-inflammatory drug that is characterized by low solubility-high permeability. The present study was designed to improve the dissolution rate of piroxicam at the physiological pH's through its increased solubility by using solvent deposition system.
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Ecosystem Carbon Storage and Partitioning in Chato Afromontane Forest: Its Cl...IJEAB
Forests trap carbon dioxide (CO2) from the atmosphere, store in the form of carbon (C) and regulate climate change. In this study, C storage and climate change mitigation potential of Chato Afromontane forest was assessed from measurement of the major pools including the aboveground biomass, belowground biomass, dead tree biomass, plant litter and soil organic carbon (SOC). The result showed that biomass accumulation was comparatively larger for natural forest than plantations due to maturity, intactness and species diversity. The total C storage capacity of the forest ranged from 107.12 Mg ha-1 for acacia plantation to 453.21 Mg ha-1 for the intact natural forest. The mean C storage capacity by major pools ranged from 1.36 Mg ha-1 for the dead tree C to 157.95 Mg ha-1 for the aboveground C pool. The forest ecosystem accumulated a total of nearly 6371.30 Gg C in the vegetation plus soil to a depth of 60 cm. Conservation of the sacred forest will have an imperative implication to net positive C addition and regulation of climate change.
Carbon stock of woody species along Altitude gradient in Alemsaga Forest, Sou...Agriculture Journal IJOEAR
Purpose: Forest ecosystems play a significant role in the climate change mitigation and biodiversity conservation. Therefore carbon determination provide clear indications of the possibilities of promoting forest development and management for mitigating of climate change through soil and vegetation carbon sequestration. The study was carried out to quantify carbon stock potential in Alemsaga Forest, South Gondar zone. Research method: Vegetation data Collection was made using a systematic sampling method; laying six transect lines with 500 m apart and 54 quadrants of 20 m X 20 m established 200 m distant to each other along the transect lines. In these plots, abundance, DBH and heights of all woody species were recorded, and soil sample was collected 1m X1m from the four corners and center of each quadrant. General allometric model was used for estimating above and belowground biomass. The organic carbon content of the soil samples was determined in the laboratory. Finding: A total of 66 woody plant species belong to 42 families were identified, Fabaceae was the most dominant families. The total mean above and belowground carbon stock was 216.86 ton/ha and 114.71 ton/ha respectively and soil organic carbon (SOC) 103.15 ton/ha. Above and belowground carbon increased as altitude decreased, but SOC increases with increase of altitude. Originality/value: Carbon stock estimation in the forest helps to manage the forests sustainably from the ecological, economic and environmental points of view and opportunities for economic benefit through carbon trading to farmers.
Above ground biomass and carbon stock estimation of Arroceros Forest Park "Th...Innspub Net
In an area where urbanization is rapidly growing, carbon is slowly sequestered which clogs the ozone layer. With forest biomass, carbon is easily sequestered and stored by trees. This research focuses on the potential carbon storage of the Arroceros Forest Park, one of the last lungs of the metropolis located in the heart of the National Capital Region, Manila, Philippines. Trees with ≥10 cm diameter at breast height (DBH) were inventoried, from two (2) hectare area of site. These trees were used in the estimation of the biomass and carbon stock. The Power-Fit Equation from Banaticla (insert year), = 0.342 (DBH (exp (0.73))) was used in the study. Results showed that Swietenia macrophylla dominated the park. Species with highest contribution of biomass and carbon is the Swietenia macrophylla with value of 149.55t/ha. The carbon formed from this was 45%, and estimated carbon stock present is 30.59Ct/ha. Total aboveground biomass and carbon stock in the forest park is estimated at 640.21t/ha, and 130.95Ct/ha, respectively. Provided the carbon stock estimate, this could give more importance to Arroceros Forest Park in carbon sequestration. Site must be protected and enhanced to promote the important role of green spaces in Metro Manila.
An Emergent Carapa oreophila Products Value Chain – A Case Study of The Kilum...AI Publications
This study focused on the tradable products of Carapaoreophilaand employs ethnobotanic quantitative methods. Semi-structured ethnobotanical questionnaires were conducted to collect information on general knowledge of Carapa oreophila, characteristics of informants; plant parts exploited as well as gathering; processing and storage methods. The reasons for use: market value, points of sales, means of transport, trade channels, constraints and their opinion on resource availability. Ethnobotanic method and descriptive statistic were employed to measure the effect of product exploitation. This paper exposes three traded Carapaoreophilaproducts with high market value. Fuel wood and leave-rodent chain had high market value and high turnovers while wood craft goods, hoe and axe handles had high turnovers but low market value. Leave harvesters are also fuelwood suppliers. The incomes earned by harvesters of the Carapa products are used to meet their domestic demand for money or liquidity preference. Unfortunately, harvest methods and techniques are unhealthy and do not contribute to secure the forest resource. Given its multipurpose uses, we recommend the promotion and enhancement of Carapa oreophila through its domestication and seed oil production to provide significant socio-economic benefits to the local people. To this end, it is necessary to implement strategies to support local communities to actively participate in the conservation and sustainable use of the species as part of the preservation of plant biodiversity.
Floristic composition, diversity and structure of woody vegetation in the agr...Open Access Research Paper
The objective of this study is to characterize the current status of woody species in agrosystems and to identify ecologically important woody species that favor agriculture-livestock integration in the context of strong anthropic pressures in the Maradi region. The ground forest inventory method was used to characterize woody vegetation in three sites in the departments of Dakoro (north), Guidan Roumdji (center) and Madarounfa (south). A total of 187 plots were installed, each with a surface area of 2500m². Data collected included species list, total height, diameter at 1.30m from the ground and both perpendicular diameters of the crown, and natural regeneration of woody species. The results show that the southern zone has more species (17) divided into 9 families, followed by the central zone with 16 species and 12 families and finally the northern zone with 9 species and 7 families. The diversity decreases from the south (3.01 bites), center (2.27) and north (1.76 bites). As for the dendrometric parameters, the difference is significant (P ˂ 0.000) with greater values of average height, diameter at 1.30 m from the ground and basal area of the trees in the southern area. It is not significant between ecological zones the basal area of trees (P = 0.9). Faidherbia albida and Piliostigma reticulatum were the most ecologically important species distributed in all three zones. The overall diameter class and height structure imputed by the dominant species shows a negative skewed distribution of the disturbed stand in all three ecological zones. Regeneration is 747±65 (ft/ha), 2136±177 (ft/ha), and 1018±63 (ft/ha) in the north, center, and south, respectively, with a highly significant difference (P=0.000). This regeneration is an important source for re-greening the fields if maintained. This study provides important results that can be used to refine the management of agroforestry parks for various ecosystem services for the benefit of populations.
Measuring Individual Tree Height and Crown Diameter for Mangrove Trees with A...INFOGAIN PUBLICATION
Mangroves are unique ecosystems that provide valuable coastal area habitats, protection, and services. Access to observing mangrove forests is typically difficult on the ground. Therefore, it is of interest to develop and evaluate remote sensing methods that enable us to obtain accurate information on the structure of mangrove forests and to monitor their condition in time. The main objective of this study was to develop a methodology for processing airborne lidar data for measuring height and crown diameter for mangrove forests in the north-eastern coastal areas of Brazil. Specific objectives were to: (1) evaluate the most appropriate lidar data processing approach, such as area-based or individual tree methods, (2) investigate the most appropriate parameters for lidar-derived data products when estimating height and crown diameter, such as the spatial resolution of canopy height models and ground elevation models; and (3) compare the accuracy of lidar estimates to field measurements of height and crown diameter. The lidar dataset was acquired over mangrove forest of the northeast of Brazil. The crown diameter was calculated as the average of two values measured along two perpendicular directions from the location of each tree top by fitting a fourth-degree polynomial on both profiles. The lidar-derived tree measurements were used with regression models and cross-validation to estimate plot level field-measured crown diameter. Root mean square error, linear regression and the Nash-Sutcliffe coefficient were also used to compare lidar height and field height. The mean of lidar-estimated tree height was 9,48m and the mean of field tree height was 8.44m. The correlation between lidar tree height and field tree height was r= 0.60, E=-0.06 and RMSE= 2.8. The correlation between height and crown diameter needed to parameterized the individual tree identification software obtained for 32 trees was r= 0.83 and determination coefficient was r2 = 0.69. The results of the current study show that lidar data could be used to estimate height and average crown diameter of mangrove trees and to improve estimates of other mangrove forest biophysical parameters of interest by focusing at the individual tree level. The research presented in this study contributes to the overall knowledge of using lidar remote sensing to measure and monitor mangrove forests.
Measuring Individual Tree Height and Crown Diameter for Mangrove Trees with A...INFOGAIN PUBLICATION
Mangroves are unique ecosystems that provide valuable coastal area habitats, protection, and services. Access to observing mangrove forests is typically difficult on the ground. Therefore, it is of interest to develop and evaluate remote sensing methods that enable us to obtain accurate information on the structure of mangrove forests and to monitor their condition in time. The main objective of this study was to develop a methodology for processing airborne lidar data for measuring height and crown diameter for mangrove forests in the north-eastern coastal areas of Brazil. Specific objectives were to: (1) evaluate the most appropriate lidar data processing approach, such as area-based or individual tree methods, (2) investigate the most appropriate parameters for lidar-derived data products when estimating height and crown diameter, such as the spatial resolution of canopy height models and ground elevation models; and (3) compare the accuracy of lidar estimates to field measurements of height and crown diameter. The lidar dataset was acquired over mangrove forest of the northeast of Brazil. The crown diameter was calculated as the average of two values measured along two perpendicular directions from the location of each tree top by fitting a fourth-degree polynomial on both profiles. The lidar-derived tree measurements were used with regression models and cross-validation to estimate plot level field-measured crown diameter. Root mean square error, linear regression and the Nash-Sutcliffe coefficient were also used to compare lidar height and field height. The mean of lidar-estimated tree height was 9,48m and the mean of field tree height was 8.44m. The correlation between lidar tree height and field tree height was r= 0.60, E=-0.06 and RMSE= 2.8. The correlation between height and crown diameter needed to parameterized the individual tree identification software obtained for 32 trees was r= 0.83 and determination coefficient was r2 = 0.69. The results of the current study show that lidar data could be used to estimate height and average crown diameter of mangrove trees and to improve estimates of other mangrove forest biophysical parameters of interest by focusing at the individual tree level. The research presented in this study contributes to the overall knowledge of using lidar remote sensing to measure and monitor mangrove forests.
Measuring Individual Tree Height and Crown Diameter for Mangrove Trees with A...INFOGAIN PUBLICATION
Mangroves are unique ecosystems that provide valuable coastal area habitats, protection, and services. Access to observing mangrove forests is typically difficult on the ground. Therefore, it is of interest to develop and evaluate remote sensing methods that enable us to obtain accurate information on the structure of mangrove forests and to monitor their condition in time. The main objective of this study was to develop a methodology for processing airborne lidar data for measuring height and crown diameter for mangrove forests in the north-eastern coastal areas of Brazil. Specific objectives were to: (1) evaluate the most appropriate lidar data processing approach, such as area-based or individual tree methods, (2) investigate the most appropriate parameters for lidar-derived data products when estimating height and crown diameter, such as the spatial resolution of canopy height models and ground elevation models; and (3) compare the accuracy of lidar estimates to field measurements of height and crown diameter. The lidar dataset was acquired over mangrove forest of the northeast of Brazil. The crown diameter was calculated as the average of two values measured along two perpendicular directions from the location of each tree top by fitting a fourth-degree polynomial on both profiles. The lidar-derived tree measurements were used with regression models and cross-validation to estimate plot level field-measured crown diameter. Root mean square error, linear regression and the Nash-Sutcliffe coefficient were also used to compare lidar height and field height. The mean of lidar-estimated tree height was 9,48m and the mean of field tree height was 8.44m. The correlation between lidar tree height and field tree height was r= 0.60, E=-0.06 and RMSE= 2.8. The correlation between height and crown diameter needed to parameterized the individual tree identification software obtained for 32 trees was r= 0.83 and determination coefficient was r2 = 0.69. The results of the current study show that lidar data could be used to estimate height and average crown diameter of mangrove trees and to improve estimates of other mangrove forest biophysical parameters of interest by focusing at the individual tree level. The research presented in this study contributes to the overall knowledge of using lidar remote sensing to measure and monitor mangrove forests.
IMAGE PROCESSING AND CLUSTERING ALGORITHMS FOR FOREST COVER QUANTIFICATIONIAEME Publication
“Forest cover” refers to the relative land area covered by forests. Anthropological interventions and the subsequent diminishing forest cover, result in environmental degradation, impacting man-nature interactions. Hence, it became the need of the moment to monitor the forest cover to minimize natural perils and promote sustainable development. The present preliminary work focuses on implementing image processing and k- means clustering techniques on satellite imagery to monitor and quantify the forest cover of the Sundarbans delta, existing across India and Bangladesh. Imagebased algorithms relying on characteristic colouration were proposed for analysing the percentage of forest cover in the predefined area. Among various methods of monitoring and examining forest land, image-based algorithms can be of vital use due to the rise in the accessibility of information and the potential of analysing large data sets with the least processing time. The above-discussed techniques, along with the availability of Machine Learning (ML) and spaceborne photography, will have a futuristic impact on interpreting the variations in land cover and land utilization. Building upon the following algorithm, it is now conceivable to conduct timely comprehensive analysis, real-time evaluation, monitoring, and control on how events unfold. Similarly, data collected from various geographical observation systems may provide several other qualitative features that are more focused.
Levers for the transformation of land use on the periphery of the Haut-Sassan...Innspub Net
The development of the agricultural sector in Côte d’Ivoire has led to profound changes in forest cover in general and around the protected areas of the State in particular. The aim of this work is to give an account of the process of mutation of the rural space of the classified forest of Haut-Sassandra for a better conservation of the latter. To achieve this objective, satellite images dating from 1997, 2002, 2006, 2013 and 2018 have been classified followed by observations and field surveys. The results show a reduction in forest cover in favour of agriculture. In fact, the forested areas that occupied 18.4% of the landscape in 1997 fell to 4% in 2018 with a conversion of more than 80% of the forested areas to crops. The latter are dominated by three perennial crops with associated food crops. Among these perennial crops, cocoa and coffee are the old ones and are essentially cultivated on a forest cultivation precedent, thus leading to a rarefaction of forest areas. While cashew trees, the third perennial crop, are more recent and were introduced into the area as a result of the increasing scarcity of forest areas. Thus, cashew trees are essentially cultivated on previous crops grown on fallow land and old plantations.
THE POTENTIAL OF BLUE CARBON STOCKS AND CARBON DIOXIDE ABSORPTION IN MANGROVE...Asramid Yasin
Abstract— Indonesia is a country with the second-longest coastline globally and has the most extensive mangrove forests in the world. Mangrove forests are included in the blue carbon group, which per hectare store up to four times more carbon storage than tropical forests. Mangrove forests play an essential role in absorbing carbon emissions in the air and storing a lot of carbon compared to natural forests. This study aims to determine carbon storage and CO2 absorption in mangrove forests in Kabaena Barat Subdistrict, Bombana Regency. The data comes from direct measurements in the field, namely above-ground carbon, carried out without damaging trees, only covering carbon in tree vegetation. It is the largest proportion of carbon storage on land. The data collection used a survey method to identify mangrove species, circumference, tree trunk diameter at breast height (dbh), biomass, carbon storage, CO2 absorption, and 22 plots of plotted line method with eight transects. The results showed that 10 types of mangrove
species were found on the transect observation, namely Avicennia alba, Avicennia marina, Avicennia lanata, Avicennia sp., Bruguiera cylindrica, Bruguiera gymnorhiza, Rhizophora apiculata, Rhizophora mucronata, Sonneratia alba, and Xylocarpus granatum. With the total amount of biomass stored in Kabaena Barat Subdistrict's mangrove forests, Bombana Regency, is 6,664.93 tons ha-1 with carbon storage of 3,065.85 tons ha-1 and carbon dioxide absorption of 11,241.55 tons ha-1.
Forest landscape dynamics in the cotton basin of North BeninAI Publications
The agro-ecological zone of the cotton basin of North Benin is a rainfed cereal farming area. In addition, the area is one of the country's favourable Cotton growing areas, which affects the configuration of its landscape. This study analyses the dynamics of the forest landscape in the cotton basin of North Benin between 1986 and 2000. A multidimensional approach was used based on a participatory inventory, field observations and statistical analyses of data from the interpretation of SPOT images. Several indices were calculated, including the importance value of the degree of disturbance, the composition and spatial configuration indices of the landscape types. Then, the sample test matched to the 5% threshold of the disturbance levels obtained between 1986 and 2000 on the one hand and between 2000 and 2016 on the other hand to ensure their significance. The results of this study show two types of disturbance, namely natural (4) and anthropogenic (7). Analysis of these disturbances also shows that agriculture (IV = 0.97), overgrazing (IV = 0.88), timber and service harvesting (IV = 0.78) and carbonization (IV = 0.63) are the main human disturbances in the study area. In addition, there is rapid population growth (IV = 0.94) and climate disturbances (IV = 0.85). In addition, the forest landscape has seen an increase in the number of spots (from 666 in 1986 to 2419 in 2016) and a decrease in the total area. Similarly, the values of the contagion index, ranging from 82.32 in 1986 to 65.82 in 2016, reflect a very fragmented landscape. Thus, the fragmentation of the forest landscape in the cotton basin of North Benin raises, in a very particular way, the problem of the conservation of plant biodiversity.
Carbon Stock Estimation in Standing Tree of Chir Pine and Banj Oak Pure Fores...science journals
A study was conducted to measure carbon stock in two Van Panchayat forest of Garhwal Himalaya. For comparative study, we selected the degraded and non-degraded site in Pine and Oak Forest and estimated total carbon stock (above and below ground).
Potential Distribution and Conservation of Endangered Bird Anthus sokokensis ...AI Publications
Ruvu-South Coastal Forest Reserve forms one of the most important coastal forests in Eastern Africa coastal belt. It provides important ecological habitat for most endemic and endangered fauna and flora species including endangered Sokoke pipit bird (Anthussokokensis). The study evaluated the potential distribution and conservation of globally endangered Sokoke pipit bird in Ruvu Coastal Forest Reserve in Tanzania. Specifically the project assessed the current population size, distribution, and habitat conditions of Sokoke pipit bird in the study area. Using National Forest Inventory protocol, a total of 9 tagged line transects were established 900m from each other and sample plots of 50m x 30m were laid at every 400m along tagged transects. In each sample plot, information about forest floor conditions, forest gaps and signs for forest disturbances were assessed.Study recorded a total of 201 disturbance events along all 13 transects. Tree cutting events were observed at highest frequency rate with 71 incidences compared to others; followed by fire damage incidences. Also the study recorded 28 Sokoke pipit birds distributed in 5 sample plots among all 39 plots surveyed.The mean density ofS.pipit bird found is0.02 birds/ha, with a projected overall bird population estimated at 611 individuals in the entire forest. The study recommends further studies to other parts of the forest reserve so as to identify other fundamental niche, endangered and endemic species. Also to enhance of forest management by local authority and raise conservation awareness to address human-mediated forest destruction.
Similar to Estimation of Long-Term Above-Ground Biomass, Carbon Stocks and Carbon Dioxide Equivalent Lost Due to Deforestation in Mapfungautsi Forest, Zimbabwe (20)
The Statutory Interpretation of Renewable Energy Based on Syllogism of Britis...AI Publications
The current production for energy consumption generates harmful impacts of carbon dioxide to the environment causing instability to sustainable development goals. The constitutional reforms of British Government serve to be an important means of resolving any encountered incompatibilities to political environment. This study aims to evaluate green economy using developed equation for renewable energy towards political polarization of corporate governance. The Kano Model Assessment is used to measure the equivalency of 1970 Patents Act to UK Intellectual Property tabulating the criteria for the fulfillment of sustainable development goals in respect to the environment, artificial intelligence, and dynamic dichotomy of administrative agencies and presidential restriction, as statutory interpretation development to renewable energy. The constitutional forms of British government satisfy the sustainable development goals needed to fight climate change, advocate healthy ecosystem, promote leadership of magnates, and delegate responsibilities towards green economy. The presidential partisanship must be observed to delineate parties of concerns and execute the government prescriptions in equivalence to the dichotomous relationship of technology and the environment in fulfilling the rights and privileges of all citizens. Hence, the political elites can execute corporate governance towards sustainable development of renewable energy promoting environmental parks and zero emission target of carbon dioxide discharges. The economic theory developed in statutory interpretation for renewable energy serves as a tool to reduce detrimental impacts of carbon dioxide to the environment, mitigate climate change, and produce artefacts of bioenergy and artificial intelligence promoting sustainable development. It is suggested to explore other vulnerabilities of artificial intelligence to prosper economic success.
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Analysis of Value Chain of Cow Milk: The Case of Itang Special Woreda, Gambel...AI Publications
Ethiopia has a long and rich history of dairy farming, which was mostly carried out by small and marginal farmers who raised cattle, camels, goats, and sheep, among other species, for milk. Finding the Itang Special Woreda cow milk value chain is the study's main goal. In order to gather primary data, 204 smallholder dairy farmer households were randomly selected, and the market concentration ratio was calculated using 20 traders. Descriptive statistics, econometric models, and rank analysis were used to achieve the above specified goals. Out of all the participants in the milk value chain, producers, cafés, hotels, and dairy cooperatives had the largest gross marketing margins, accounting for 100% of the consumer price in channels I and II, 55% in channels III and V, and 25.5% in channels V. The number of children under five, the number of milking cows owned, the amount of money from non-dairy sources, the frequency of extension service contacts, the amount of milk produced each day, and the availability of market information were found to have an impact on smallholders' involvement in the milk market. Numerous obstacles also limited the amount of milk produced and marketed. The poll claims that general health issues, sickness, predators, and a lack of veterinary care are plaguing farmers. In order to address the issue of milk perishability, the researchers recommended the host community and organization to construct an agro milk processor, renovate the dairy cooperative in the study region, and restructure the current conventional marketing to lower the transaction and cost of milk marketing.
Minds and Machines: Impact of Emotional Intelligence on Investment Decisions ...AI Publications
In the evolving landscape of financial decision-making, this study delves into the intricate relationships among Emotional Intelligence (EI), Artificial Intelligence (AI), and Investment Decisions (ID). By scrutinizing the direct influence of human emotional intelligence on investment choices and elucidating the mediating role of AI in this process, our research seeks to unravel the complex interplay between minds and machines. Through empirical analysis, we reveal that EI not only directly impacts ID but also exerts its influence indirectly through AI-mediated pathways. The findings underscore the pivotal role of emotional awareness in investor decision-making, augmented by the technological capabilities of AI. It suggests that most investors are influenced by the identified emotional intelligence when making investment decisions. Furthermore, AI substantially impacts investors' decision-making process when it comes to investing; nevertheless, AI partially mediates the relationship between emotional intelligence and investment decisions. This nuanced understanding provides valuable insights for financial practitioners, policymakers, and researchers, emphasizing the need for holistic strategies that integrate emotional and technological dimensions in navigating the intricacies of modern investment landscapes. As the synergy between human intuition and artificial intelligence becomes increasingly integral to financial decision-making, this study contributes to the ongoing discourse on the symbiotic relationship between minds and machines in investments.0
Bronchopulmonary cancers are common cancers with a poor prognosis. It is the leading cause of death by cancer in Algeria and in the world. Behind this unfavorable prognosis hides numerous disparities according to age, sex, and exposure to risk factors, ranking 4th among incident cancers and developing countries including Algeria, all sexes combined. It ranks 2nd cancers in men and 3rd among women. Whatever the age observed, the incidence of this cancer is higher in men than in women, however the gap is narrowing to the detriment of the latter. The results of scientific research agree to relate trends in incidence and mortality rates to tobacco consumption, including passive smoking. Furthermore, other risk factors are mentioned such as exposure to asbestos in the workplace or to radon for the general population, or even genetic predisposition. However, the weight of these etiological and/or predisposing factors is in no way comparable to that of tobacco in the genesis of lung cancer and the resulting mortality. We provide a literature review in our article on the descriptive and analytical epidemiology of lung cancer.
Further analysis on Organic agriculture and organic farming in case of Thaila...AI Publications
The objective of this paper is to present Further analysis on Organic agriculture and organic farming in case of Thailand agriculture and enhancing farmer productivity. In view of the demand for organic fertilizers, efforts should also be made to enhance and to develop more effective of compost, bio-fertilizer, and bio-pesticides currently used by farmers. Likewise, emphasis should also be laid on the cultivation of legumes and other crops that can enhance the fertility of the soil, as practiced by farmers in many developing countries to fertilize their lands. On the other hand, most of the farmers who practice this farm system found that they are adopting a number of SLMs and interested in joining the meeting or training to gain more and more knowledge.
Current Changes in the Role of Agriculture and Agri-Farming Structures in Tha...AI Publications
The objective os this study is to present Current Changes in the Role of Agriculture and Agri-Farming Structures in Thailand and Vietnam with SLM practices. Farmer’s adoption and investment in SLM is a key for controlling land degradation, enhancing the well-being of society, and ensuring the optimal use of land resources for the benefit of present and future generations (World Bank, 2006; FAO, 2018). And agriculture remains an essential element of lives of many farmers in term of the strong cultural and symbolic values that attach current working generation to do and to spend time for it but not intern of income generating.
Growth, Yield and Economic Advantage of Onion (Allium cepa L.) Varieties in R...AI Publications
Haphazard and low soil fertility, low yielding verities and poor agronomic practices are among the major factors constraining onion production in the central rift valley of Ethiopia. Therefore, a field experiment was conducted in East Showa Zone of Adami Tulu Jido Combolcha district in central rift valley areas at ziway from October 2021 to April 2022 to identify appropriate rate of NPSB fertilizer and planting pattern of onion varieties. The experiment was laid out in split plot design of factorial arrangement in three replications. The main effect of NPSB blended fertilizer rates and varieties (red coach and red king) significantly (p<0.01) influenced plant height, leaf length, leaf diameter, leaf number and fresh leaf weight, shoot dry matter per plant, and harvest index. Total dry biomass, bulb diameter, neck diameter, average fresh bulb weight, bulb dry matter, marketable bulb yield, and total bulb yield were significantly (p<0.01) influenced only by the main effect of NPSB blended fertilizer rates. In addition, unmarketable bulb yield was statistically significantly affected (p≥0.05) by the blended fertilizer rates and planting pattern. Moreover, days to 90% maturity of onion was affected by the main factor of NPSB fertilizer rate, variety and planting pattern. The non-fertilized plants in the control treatment were inferior in all parameters except unmarketable bulb yield and harvest index. Significantly higher marketable bulb yield (41 t ha-1) and total bulb yield (41.33 t ha-1) was recorded from 300 kg ha-1 NPSB blended fertilizer rate applied. Double row planting method and hybrid red coach onion variety had also gave higher growth and yields. The study revealed that the highest net benefit of Birr, 878,894 with lest cost of Birr 148,006 by the combinations of 150 kg blended NPSB ha-1 with double row planting method (40cm*20cm*7cm) and red coach variety which can be recommendable for higher marketable bulb yield and economic return of hybrid onion for small scale farmers in the study area. Also, for resource full producers (investors), highest net benefit of Birr 1,205,372 with higher cost (159,628 Birr) by application of 300 kg NPSB ha-1 is recommended as a second option. However, the research should be replicated both in season and areas to more verify the recommendations.
Evaluation of In-vitro neuroprotective effect of Ethanolic extract of Canariu...AI Publications
The ethanolic extract of canarium solomonense leaves (ecsl) was studied for its neuroprotective activity. The neuroprotective activity of ECSL was found to have a significant impact on neuronal cell death triggered by hydrogen peroxide (MTT assay) in human SH-SY5Y neuroblastoma cells. Scopolamine, a muscarinic receptor blocker, is frequently used to induce cognitive impairment in laboratory animals. Injections of scopolamine influence multiple cognitive functions, including motor function, short-term memory, and attention. Using the Morris water maze, the Y maze, and the passive avoidance paradigm, memory enhancing activity in scopolamine-induced amnesic rats was evaluated. Using the Morris water maze, the Y maze, and the passive avoidance paradigm, ECSL was found to have a substantial effect on the memory of scopolamine- induced amnesic rats. Our experimental data indicated that ECSL can reverse scopolamine induced amnesia and assist with memory issues.
The goal of neuroprotection is to shield neurons against damage, whether that damage is caused by environmental factors, pathogens, or neurodegenerative illnesses. Inhibiting protein-based deposit buildup, oxidative stress, and neuroinflammation, as well as rectifying abnormalities of neurotransmitters like dopamine and acetylcholine, are some of the ways in which medicinal herbs have neuroprotective effects [1-3]. This review will focus on the ways in which medicinal herbs may protect neurons.
A phytochemical and pharmacological review on canarium solomonenseAI Publications
The genus Canarium L. consists of 75 species of aromatic trees which are found in the rainforests of tropical Asia, Africa and the Pacific. The medicinal uses, botany, chemical constituents and pharmacological activities are now reviewed. Various compounds are tabulated according to their classes their structures are given. Traditionally canarium solomonense have been used to treat a broad array of illnesses. Pharmacological actions for canarium solomonense as discussed in this review include antibacterial, antimicrobial, antioxidant, anti-inflammatory, hepatoprotective and antitumor activity.
Influences of Digital Marketing in the Buying Decisions of College Students i...AI Publications
This research investigates the influence of digital marketing channels on purchasing decisions among college students in Ramanathapuram District. The study highlights that social media marketing, online advertising, and mobile marketing exhibit substantial positive effects on purchase decisions. However, email marketing's impact appears to be more complex. Moreover, the study explores how demographic variables like gender and academic level shape these effects. Notably, freshman students display varying susceptibility to specific digital marketing messages compared to their junior, senior, or graduate counterparts. These findings offer crucial insights for marketers aiming to tailor their strategies effectively to the preferences and behaviors of college students. By understanding the differential impacts of various digital marketing channels and considering demographic nuances, marketers can refine their approaches, optimize engagement, and ultimately enhance the effectiveness of their campaigns in targeting this demographic.
A Study on Performance of the Karnataka State Cooperative Agriculture & Rural...AI Publications
The Karnataka State Co-operative Agriculture and Rural Development Bank Limited is the apex bank of all the primary co-operative agriculture and rural development banks in the state. All the PCARD Banks in the state are affiliated to it. The KSCARD Bank provides financial accommodation to the PCARD Banks for their lending operations. In order to quick sanction and disbursement of loans and supervision over the PCARD Banks the KSCARD Bank has opened district level branches. Bank has established Women Development Cell to promote entrepreneurship among women in 2005. The Bank is identifying women borrowers in the rural areas by assigning suitable projects to motivate their self-confidence to lead independent life. Progress made in financing women entrepreneurs women.
Breast hamartoma is a rare, well-circumscribed, benign lesion made up of a variable quantity of glandular, adipose and fibrous tissue. This is a lesion that can affect women at any age from puberty. With the increasingly frequent use of imaging methods such as mammography and ultrasound as well as breast biopsy, cases of hamartoma diagnosed are increasing. The diagnosis of these lesions is made by mammography. The histological and radiological aspects are variable and depend on its adipose tissue content. The identification of these lesions is important in order to avoid surgical excisions. We report radio-clinical and pathological records of breast hamartoma.
A retrospective study on ovarian cancer with a median follow-up of 36 months ...AI Publications
Ovarian cancer is relatively common but serious and has a poor prognosis. The aim of this study is to highlight the epidemiological, diagnostic, therapeutic and evolutionary aspects of this malignant pathology managed at the Bejaia university hospital center. This is a retrospective and descriptive study over a period of 3 years (2019 - 2022) carried out on 20 patients who developed ovarian cancer. The average age of the patients was 50 years old, 53.23% of whom were over 45 years old. The CA-125 blood test was positive in 18 out of 20 patients. The tumors were discovered on ultrasound in 87.10% of cases and at laparotomy in 12.90%. Total hysterectomy with bilateral adnexectomy was the most performed procedure (64.52%). The early postoperative course was simple. 15 patients underwent second look surgery (16.13%) for locoregional recurrences. Epithelial tumors were the most frequent histological type (93.55%), including 79% in the advanced stage ( IIIc -IV) and 21% in the early stage (Ia- Ib ). Adjuvant chemotherapy was administered in 80% of patients. With a median follow-up of 36 months, 2 patients were lost to follow-up. The evolution was favorable in 27.42% and in 25.81% deaths occurred late postoperatively. Ovarian cancer is not common but serious given the advanced stages and the high rate of late postoperative deaths which were largely observed in patients deprived of adequate neoadjuvant or adjuvant chemotherapy.
More analysis on environment protection and sustainable agriculture - A case ...AI Publications
This study presents a case of tea and coffee crops , esp. environment protection and sustainable agriculture in Son La and Thai Nguyen of Vietnam. Research results show us that The process of having an agricultural product goes through many steps such as planting, planning, harvesting, packing, transporting, storing and distributing. - The State adopts policies to encourage innovation of agricultural production models and methods towards sustainability, adapting to climate change, saving water, and limiting the use of inorganic fertilizers and pesticides. chemicals and products for environmental treatment in agriculture; develop environmentally friendly agricultural models. Our research limitation is that we can expand for other crops, industries and markets as well.
Assessment of Growth and Yield Performance of Twelve Different Rice Varieties...AI Publications
The present investigation entitled “Assessment of growth and yield performance of twelve different rice varieties under north Konkan coastal zone of Maharashtra” was carried out during the kharif season of the year 2021 and 2022 on the field of ASPEE, Agricultural Research and Development Foundation, Tansa Farm, At Nare, Taluka Wada, District Palghar, Maharashtra, India. The experiment was laid out in Randomized Block Design (RBD). The twelve varieties namely Zini, Jaya, Dandi, Rahghudya, Govindbhog, Dangi, Gurjari, VNR-7, VNR-8, VNR-9, Karjat-3, and Karjat-5 were replicated thrice. The plant height (cm), number of tillers per plant, number of panicles per plant, number of panicles (m²), and length of panicle (cm) were noted to the maximum with cv. “VNR-7”. The highest number of seeds per panicle, test weight (gm), grain yield (q/ha), and straw yield (q/ha) were recorded with the cv. “VNR-7”. While the lowest number of days to 50% flowering was also recorded with cv. “VNR-7” during the year 2021 and 2022.
Cultivating Proactive Cybersecurity Culture among IT Professional to Combat E...AI Publications
In the current digital landscape, cybercriminals continually evolve their techniques to execute successful attacks on businesses, thus posing a great challenge to information technology (IT) professionals. While traditional cybersecurity approaches like layered defense and reactive security have helped IT professionals cope with traditional threats, they are ineffective in dealing with evolving cyberattacks. This paper focuses on the need for a proactive cybersecurity culture among IT professionals to enable them combat evolving threats. The paper emphasis that building a proactive security approach and culture can help among IT professionals anticipate, identify, and mitigate latent threats prior to them exploiting existing vulnerabilities. This paper also points out that as IT professionals use reactive security when dealing with traditional attacks, they can use it collaboratively with proactive security to effectively protect their networks, data, and systems and avoid heavy costs of dealing with cyberattack’s aftermaths and business recovery.
The Impacts of Viral Hepatitis on Liver Enzymes and BilrubinAI Publications
Viral hepatitis is an infection that causes liver inflammation and damage. Several different viruses cause hepatitis, including hepatitis A, B, C, D, and E. The hepatitis A and E viruses typically cause acute infections. The hepatitis B, C, and D viruses can cause acute and chronic infections. Hepatitis A causes only acute infection and typically gets better without treatment after a few weeks. The hepatitis A virus spreads through contact with an infected person’s stool. Protection by getting the hepatitis A vaccine. Hepatitis E is typically an acute infection that gets better without treatment after several weeks. Some types of hepatitis E virus are spread by drinking water contaminated by an infected person’s stool. Other types are spread by eating undercooked pork or wild game. Hepatitis B can cause acute or chronic infection. Recommendation for screening for hepatitis B in pregnant women or in those with a high chance of being infected. Protection from hepatitis B by getting the hepatitis B vaccine. Hepatitis C can cause acute or chronic infection. Doctors usually recommend one-time screening of all adults ages 18 to 79 for hepatitis C. Early diagnosis and treatment can prevent liver damage. The hepatitis D virus is unusual because it can only infect those who have a hepatitis B virus infection. A coinfection occurs when both hepatitis D and hepatitis B infections at the same time. A superinfection occurs already have chronic hepatitis B and then become infected with hepatitis D. The aim of this study is to find the effect of each type of viral hepatitis on the bilirubin (TB , DSB) , and liver enzymes; AST, ALT, ALP,GGT among viral hepatitis patients. 200 patients were selected from the viral hepatitis units in the central public health laboratory in Baghdad city, all the chosen cases were confirmed as a positive samples , they are classified into four equal group each with fifty individual and with a single serological viral hepatitis type either; anti-HAV( IgM ) , HBs Ag , anti-HCV ,or anti-HEV(IgM ). All patients were tested for; serum bilirubin ( TB ,D.SB ) , AST , ALT , ALP , GGT. Another fifty quite healthy and normal person was selected as a control group for comparison. . Liver enzymes and bilirubin changes are more pronounced in HAV, HEV than HCV and HBVAST and ALT lack some sensitivity in detecting HCV ,HBV and mild elevations of ALT or AST in asymptomatic patients can be evaluated efficiently by considering ,hepatitis B, hepatitis C. ALT is generally a more sensitive indicator of acute liver cell damage than AST, It is relatively specific for hepatocyte necrosis with a marked elevations in viral hepatitis. Liver enzymes and bilirubin changes are more pronounced in HAV, HEV than HCV and HBV.AST and ALT lack some sensitivity in detecting HCV ,HBV and mild elevations of ALT or AST in asymptomatic patients can be evaluated efficiently by considering ,hepatitis B, hepatitis C. ALT is generally a more sensitive indicator of acute liver
Determinants of Women Empowerment in Bishoftu Town; Oromia Regional State of ...AI Publications
The purpose of this study was to determine the status of women's empowerment and its determinants using women's asset endowment and decision-making potential as indicators. To determine representative sample size, this study used a two-stage sampling technique, and 122 sample respondents were selected at random. To analyze the data in this study, descriptive statistics and a probit model were used. The average women's empowerment index was 0.41, indicating a relatively lower status of women's empowerment in the study area. According to the study's findings, only 40.9% of women were empowered, while the remaining 59.1% were not. The probit model results show that women's access to the media, women's income, and their husbands' education status have a significant and positive impact on the status of women's empowerment, while the family size of households has a negative impact. As a result, it is important to enhance women's access to the media and income, promote family planning and contraception, and improve men's educational status in order to improve the status of women's empowerment.
Prevalence of Toxoplasma gondii infection in domestic animals in District Ban...Open Access Research Paper
Toxoplasma gondii is an intracellular zoonotic protozoan parasite, infect both humans and animals population worldwide. It can also cause abortion and inborn disease in humans and livestock population. In the present study total of 313 domestic animals were screened for Toxoplasma gondii infection. Of which 45 cows, 55 buffalos, 68 goats, 60 sheep and 85 shaver chicken were tested. Among these 40 (88.88%) cows were negative and 05 (11.12%) were positive. Similarly 55 (92.72%) buffalos were negative and 04 (07.28%) were positive. In goats 68 (98.52%) were negative and 01 (01.48%) was recorded positive. In sheep and shaver chicken the infection were not recorded.
"Understanding the Carbon Cycle: Processes, Human Impacts, and Strategies for...MMariSelvam4
The carbon cycle is a critical component of Earth's environmental system, governing the movement and transformation of carbon through various reservoirs, including the atmosphere, oceans, soil, and living organisms. This complex cycle involves several key processes such as photosynthesis, respiration, decomposition, and carbon sequestration, each contributing to the regulation of carbon levels on the planet.
Human activities, particularly fossil fuel combustion and deforestation, have significantly altered the natural carbon cycle, leading to increased atmospheric carbon dioxide concentrations and driving climate change. Understanding the intricacies of the carbon cycle is essential for assessing the impacts of these changes and developing effective mitigation strategies.
By studying the carbon cycle, scientists can identify carbon sources and sinks, measure carbon fluxes, and predict future trends. This knowledge is crucial for crafting policies aimed at reducing carbon emissions, enhancing carbon storage, and promoting sustainable practices. The carbon cycle's interplay with climate systems, ecosystems, and human activities underscores its importance in maintaining a stable and healthy planet.
In-depth exploration of the carbon cycle reveals the delicate balance required to sustain life and the urgent need to address anthropogenic influences. Through research, education, and policy, we can work towards restoring equilibrium in the carbon cycle and ensuring a sustainable future for generations to come.
Willie Nelson Net Worth: A Journey Through Music, Movies, and Business Venturesgreendigital
Willie Nelson is a name that resonates within the world of music and entertainment. Known for his unique voice, and masterful guitar skills. and an extraordinary career spanning several decades. Nelson has become a legend in the country music scene. But, his influence extends far beyond the realm of music. with ventures in acting, writing, activism, and business. This comprehensive article delves into Willie Nelson net worth. exploring the various facets of his career that have contributed to his large fortune.
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Introduction
Willie Nelson net worth is a testament to his enduring influence and success in many fields. Born on April 29, 1933, in Abbott, Texas. Nelson's journey from a humble beginning to becoming one of the most iconic figures in American music is nothing short of inspirational. His net worth, which estimated to be around $25 million as of 2024. reflects a career that is as diverse as it is prolific.
Early Life and Musical Beginnings
Humble Origins
Willie Hugh Nelson was born during the Great Depression. a time of significant economic hardship in the United States. Raised by his grandparents. Nelson found solace and inspiration in music from an early age. His grandmother taught him to play the guitar. setting the stage for what would become an illustrious career.
First Steps in Music
Nelson's initial foray into the music industry was fraught with challenges. He moved to Nashville, Tennessee, to pursue his dreams, but success did not come . Working as a songwriter, Nelson penned hits for other artists. which helped him gain a foothold in the competitive music scene. His songwriting skills contributed to his early earnings. laying the foundation for his net worth.
Rise to Stardom
Breakthrough Albums
The 1970s marked a turning point in Willie Nelson's career. His albums "Shotgun Willie" (1973), "Red Headed Stranger" (1975). and "Stardust" (1978) received critical acclaim and commercial success. These albums not only solidified his position in the country music genre. but also introduced his music to a broader audience. The success of these albums played a crucial role in boosting Willie Nelson net worth.
Iconic Songs
Willie Nelson net worth is also attributed to his extensive catalog of hit songs. Tracks like "Blue Eyes Crying in the Rain," "On the Road Again," and "Always on My Mind" have become timeless classics. These songs have not only earned Nelson large royalties but have also ensured his continued relevance in the music industry.
Acting and Film Career
Hollywood Ventures
In addition to his music career, Willie Nelson has also made a mark in Hollywood. His distinctive personality and on-screen presence have landed him roles in several films and television shows. Notable appearances include roles in "The Electric Horseman" (1979), "Honeysuckle Rose" (1980), and "Barbarosa" (1982). These acting gigs have added a significant amount to Willie Nelson net worth.
Television Appearances
Nelson's char
Climate Change All over the World .pptxsairaanwer024
Climate change refers to significant and lasting changes in the average weather patterns over periods ranging from decades to millions of years. It encompasses both global warming driven by human emissions of greenhouse gases and the resulting large-scale shifts in weather patterns. While climate change is a natural phenomenon, human activities, particularly since the Industrial Revolution, have accelerated its pace and intensity
WRI’s brand new “Food Service Playbook for Promoting Sustainable Food Choices” gives food service operators the very latest strategies for creating dining environments that empower consumers to choose sustainable, plant-rich dishes. This research builds off our first guide for food service, now with industry experience and insights from nearly 350 academic trials.
UNDERSTANDING WHAT GREEN WASHING IS!.pdfJulietMogola
Many companies today use green washing to lure the public into thinking they are conserving the environment but in real sense they are doing more harm. There have been such several cases from very big companies here in Kenya and also globally. This ranges from various sectors from manufacturing and goes to consumer products. Educating people on greenwashing will enable people to make better choices based on their analysis and not on what they see on marketing sites.
Characterization and the Kinetics of drying at the drying oven and with micro...Open Access Research Paper
The objective of this work is to contribute to valorization de Nephelium lappaceum by the characterization of kinetics of drying of seeds of Nephelium lappaceum. The seeds were dehydrated until a constant mass respectively in a drying oven and a microwawe oven. The temperatures and the powers of drying are respectively: 50, 60 and 70°C and 140, 280 and 420 W. The results show that the curves of drying of seeds of Nephelium lappaceum do not present a phase of constant kinetics. The coefficients of diffusion vary between 2.09.10-8 to 2.98. 10-8m-2/s in the interval of 50°C at 70°C and between 4.83×10-07 at 9.04×10-07 m-8/s for the powers going of 140 W with 420 W the relation between Arrhenius and a value of energy of activation of 16.49 kJ. mol-1 expressed the effect of the temperature on effective diffusivity.
2. Masere et al. International Journal of Forest, Animal and Fisheries Research (IJFAF)
7(3)-2023
Int. J. Forest Animal Fish. Res.
www.aipublications.com/ijfaf Page | 37
Thus any remote sensing approach for biomass
estimation is also dependent upon field
measurements of tree growth variables [3].
Anthropogenic activities like illegal timber logging,
rapid agricultural intensification, overgrazing,
browsing, and repeated wildfires, and to some
extent, environmental and climatic dynamics have all
contributed to the significant decline of forest
biomass resources in Africa [4 - 6].
Estimates by FAO indicate that countries in the
tropics lost their forest cover due to anthropogenic
activities by as much 24 million ha between 1999 and
2000 [7]. Deforestation activities including clearing of
forested land for agriculture and other activities
contributed to an estimation of one third of the total
anthropogenic emissions of carbon in the past 150
years [8]. In a study by [9] conducted in
Mapfungautsi forest, Zimbabwe to determine the
extent of deforestation over two decades (2000-2020)
it was found that agriculture was the single most
impactful factor responsible for deforestation and
about 19.2% of the forest had been cleared. It was
observed that, of the cleared forest, the most affected
vegetation cover type was the wooded grassland
(84%) followed by bushland (31%) and wooded land
(10%) [9]. Despite the important findings on factors
responsible for deforestation and the extent of
deforestation in Mapfungautsi forest, the study by [9]
did not estimate or quantify the aboveground
biomass (AGB), aboveground carbon stocks (AGCS)
and the carbon dioxide equivalent (CO2 e) lost during
the 20-year period. Consequently, the study could
not present and enlighten the local people in and
around Mapfungautsi forest of the far-reaching
consequences of deforestation on other global
catastrophes like climate change and subsequent
challenges like threats to food production and
livelihood systems of the majority of the small-scale
farming community. It is for these reasons that this
study was conducted in Mapfungautsi forest, as a
follow-up, to estimate the long-term AGB, AGCS and
CO2 e lost in the three vegetation cover types in
Mapfungautsi forest (wooded land, bushland and
wooded grassland). The stratification of vegetation
cover types in Mapfungautsi forest was necessitated
by the potential differences in vegetation densities;
biomass and carbon stocks. The wooded land is
dominated by Baikiaea plurijuga, Julbernadia globiflora
and Brachystegia spiciformis, and Burkea africana and
this covers 75% of the forest area while the bushland
covers 10% of the forest area and has a variety of
species to parinari curatelifollia, Pseudolachnostylis
maproneifolia and also miombo. The wooded grassland
has some terminalia species, acacia fleckii, piliostigma
thonningii and others. These three metrics (AGB,
AGCS and CO2 e) are important in establishing the
climate change mitigation potential of the trees in the
study area.
Beyond the above-mentioned reasons or research
gaps, monitoring and quantifying of existing biomass
and carbon stocks as well as reporting of
deforestation and forest degradation are required in
order to enter the carbon credit markets and are also
encouraged in the implementation of the REDD+
initiative. It is therefore important to monitor
vegetation gains and losses in order to estimate the
quantities of emissions resulting from deforestation.
Thus, this study specifically aimed to compare tree
growth variables, stored AGB, AGCS and CO2 e
among the three vegetation cover types and to
estimate the total AGB, AGCS and CO2 e lost due to
deforestation activities in Mapfungautsi forest
between the year 2000 and 2020.
This paper proceeds as follows. Section 2 is the
Materials and Methods which describe the
biophysical and socio-economic attributes of the
study area, Mapfungautsi forest. Further, the section
describes the experimental design, data collection
procedures and allometric equations adopted to
estimate current AGB, AGCS and CO2 e for the three
vegetation cover types as well as to quantify the
long-term estimated AGB, AGCS and CO2 e lost due
to deforestation. Lastly, Section 2 explains how the
gathered data was analysed. Section 3 is the Results,
which details findings on the measured four tree
growth variables and the estimated AGB, AGCS and
CO2 e for the three vegetation cover types. The
penultimate section, Section 4, is the discussion of the
results and how they compare to findings from
similar studies. The final section offers some
concluding remarks.
3. Masere et al. International Journal of Forest, Animal and Fisheries Research (IJFAF)
7(3)-2023
Int. J. Forest Animal Fish. Res.
www.aipublications.com/ijfaf Page | 38
II. MATERIALS AND METHODS
2.1 Study area
The study was conducted in Mapfungautsi forest
situated in Gokwe South district, in the Midlands
province of Zimbabwe. The northern boundary of the
forest is Sengwa River from Bomba Business centre
to the east up to Nkayi road (Fig. 1). Mapfungautsi
forest lies within agro-ecological regions III and IV
which are characterized by low to average annual
rainfall ranging from 450mm to 850mm and mean
temperatures ranging from 180 C to 240 C [9].
Fig.1. Map of the study area (Source: [9])
The forest is dominated by the Zambezi teak Baikiaea
plurijuga, Pterocarpus angolensis, Brachystegia
spiciformis and Julbernadia globiflora on the Kalahari
sand ridges and slopes, and Terminalia species on the
lowlands/furrows [9]. Essentially, Mapfungautsi
forest is three-stratum and mature in undisturbed
portions, with Baikiaea plurijuga, Brachystegia
spiciformis, Julbernadia globiflora, ricinodendron
rautanenii forming the canopy. The middle layer is
comprised of some middle aged trees of the same
species. The bottom layer comprise of grasses,
regenerating saplings of the same species of the
middle and upper layers.
Initially, Mapfungautsi was a designated protected
forest with some utilization of timber and non-timber
resources in the 1980s and 90s [9]. However, the
introduction of human settlements soon after the
year 2000 altered this land use system to include
agricultural and related activities. The agricultural
system mainly practiced was the slash and burn
which has accelerated vegetation loss in the past two
decades [9].
2.2 Sampling procedures and experimental design
Mapfungautsi forest was stratified into three major
vegetation cover types namely; wooded land,
bushland and wooded grassland (Fig. 2). In each of
the three vegetation cover types, sample plots
measuring 50 m x 50 m were allocated and marked
on a base map (Fig. 2). Accessibility of the plot sites
was considered when coming up with the final
number of plots to be sampled in each vegetation
strata.
Fig. 2. Sample plots in each of the three vegetation cover
type in Mapfungautsi Forest
Resultantly a total of 22 plots across the forest were
established, with the majority of these falling under
the wooded land, followed by bushland and wooded
grassland (Table 1). These plots were within walking
distances from fire lines for easy accessibility.
Distances between plots differed for each vegetation
cover type due total coverage of each cover type. As
such, it was 8 km in the wooded land, 5 km in the
bushland and 1.5 km in the wooded grassland. After
finalizing the plot sites on the base map, coordinates
for each plot boundaries were recorded and used for
the actual identification and demarcation of plots in
the field. Marking of trees on the plot boundaries was
done using an axe.
4. Masere et al. International Journal of Forest, Animal and Fisheries Research (IJFAF)
7(3)-2023
Int. J. Forest Animal Fish. Res.
www.aipublications.com/ijfaf Page | 39
Table 1. Distribution of sample plots across three
vegetation cover types in Mafungautsi Forest
Vegetation cover
type
Area covered
in the year
2000 (Ha)
Number of
plots
Wooded land 69295 14
Bushland 5724 5
Wooded
grassland
2463 3
Total Plots 22
2.3 Data collection
2.3.1 Tree growth measurements
The measurements taken and recorded from each
sample plot (50 m x 50 m) were the tree diameter at
breast height (DBH), tree height (H), regeneration
and number of stems. The undergrowth or saplings
with a diameter less than 2 cm were only counted
and recorded. A diameter tape and a measuring
calliper were used to measure tree DBH while a
clinometer-based Vertex instrument was used to
measure the tree H. The species name of each tree
was also recorded.
2.3.2 Determination of above ground tree biomass
(AGB)
There are two methods of estimating AGB namely:
destructive (tree harvesting) and non-destructive.
While the destructive method is more accurate, it has
numerous disadvantages including being time
consuming, labour intensive and involves tree
felling, which is not desirable to environmentalists
and local communities [1, 10]. This leaves the non-
destructive methods as the most suitable for
ecosystems with rare or protected forests like
Mapfungautsi, or tree species, where, harvesting of
such species is not practical, feasible or allowed. One
such non-destructive method is the application of
allometric equations. Tree H and DBH are among the
most important predictors of tree AGB [1, 10].
The tree growth measurements taken in each plot
were used as input in the allometric equation to
determine AGB. The following allometric equation
was adopted and applied to determine the AGB (in
tonnes/ha) of Mapfungautsi forest:
Biomass = 0.1936 * (DBH2 * 3.141592654 / 4)1.1654
(1)
Where DBH is the diameter at breast height
The AGB for each vegetation cover type was
calculated and used to estimate the above ground
carbon stock (AGCS).
2.3.3 Estimation of AGCS
The AGCS was estimated using the following
equation: 47% of the AGB is carbon:
AGCS = AGB *0.47 (2)
Where 0.47 is a constant
The equation is based on the conversion of biomass
to carbon since the 47% of biomass value carbon [11,
12].
2.3.4 Estimation of carbon dioxide equivalent (CO2 e)
The estimation of CO2 e is very important in
evaluating the climate change mitigation potential of
the trees in the study area. The following equation
was used to estimate CO2 e:
CO2 e = AGCS *3.67 [13] (3)
Where 3.67 is a constant
2.3.4 Approximation of long-term AGB, AGCS and
CO2 e lost through deforestation in Mapfungautsi
forest
Satellite images (from the years 2000, 2010 and 2020)
and forest cover maps for Mapfungautsi forest were
used to determine the extent of deforestation for 20
years (2000 – 2020). The extent of deforestation was
measured at 10-year intervals. Deforested areas for
each of the three vegetation cover stratum were
identified and measured using the ArcGIS version
10.3.1. These deforested areas in each vegetation
cover stratum were then multiplied by the
corresponding current AGCS (t/ha) and CO2 e to
approximate the total AGCS and CO2 e lost over the
last two decades (2000 - 2020) respectively.
2.4 Data Analysis
All the data obtained from field measurements and
estimated from the adopted allometric equation were
subjected to statistical analysis using EViews Version
10 software.
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III. RESULTS
3.1 Tree growth variables in Mapfungautsi forest
Four tree growth variables measured in each of the
22 total plots under the three vegetation cover types
(wooded land, bushland, and wooded grassland) are
summarized in Table 2.
Table 2. Summary statistics of tree growth variables in Mapfungautsi Forest
Variable Veg Cover
Type
Mean Std Dev Minimum Median Maximum
DBH
(cm/tree)
Wooded land 11.92 2.75 8.4 11.55 16.7
Bushland 7.2 0.71 6.4 7.5 8
Grassland 5.63 0.49 5.3 5.4 6.2
Height
(m/tree)
Wooded land 9.11 2.19 6.2 8.25 13.6
Bushland 5.7 0.54 4.9 5.7 6.4
Grassland 4.3 0.44 3.8 4.5 4.6
Stems
(No./ha)
Wooded land 1212.71 180.74 947 1200 1504
Bushland 878.2 119.68 733 884 1054
Grassland 290.67 71.06 218 294 360
Regeneration Wooded land 1716.36 1228.11 109 1825.5 3607
Bushland 1598.8 993.12 208 1564 2977
Grassland 593.67 462.59 267 391 1123
Wooded land generally had the highest values across
all the four variables (DBH, H, stems/ha and
regeneration), followed by bushland with grassland
having the lowest (Table 2). On average, wooded
land trees had a height of 9.11 metres compared to
5.7 metres and 4.3 metres for bushland and grassland
respectively. Similarly, the average DBH were 11.9
cm, 7.2 cm and 5.63 cm for wooded land, bushland
and grassland respectively. The notable difference
from the three vegetation cover types was that
grassland had a significantly narrower range than
bushland and wooded land across all the four tree
growth variables. For example grassland height
ranged from 3.8 to 4.6 metres while bushland ranged
from 4.9 to 6.4 metres and wooded land ranged from
6.2 metres to 13.6 metres. Conversely, the greatest
spread range was observed for wooded land across
all the measured tree variables
Table 3. Summary statistics for estimated AGB, AGC and CO2 e in Mapfungautsi Forest
Variable Veg Cover Type Mean Std Dev Minimum Median Maximum
AGB (t/ha) Wooded land 50.78 27.43 20.84 43.79 103.41
Bushland 14.73 3.31 11.06 16 18.6
Grassland 8.28 1.73 7.13 7.44 10.27
AGCS (t/ha) Wooded land 23.67 12.89 9.8 20.58 48.6
Bushland 6.92 1.56 5.2 7.52 8.74
Grassland 3.89 0.81 3.35 3.5 4.83
CO2 e (t/ha) Wooded land 87.58 47.31 35.97 75.53 178.36
Bushland 25.40 5.71 19.08 27.60 32.08
Grassland 14.29 2.99 12.29 12.85 17.73
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3.2 Estimated AGB, AGC and CO2 e in
Mapfungautsi forest
Estimated average AGB, AGC and CO2 e in
Mapfungautsi forest shown in Table 3, indicates that
wooded land store had the most biomass and carbon
stocks followed by bushland and grassland. The
average estimated AGB were 50.78 t/ha, 14.7 t/ha
and 8.28 t/ha for wooded land, bushland and
grassland respectively. The same trend is noted for
the AGCS and CO2 e.
3.3 Estimated AGB, AGCS and CO2 e lost due to
deforestation in Mapfungautsi forest over 20
years
Deforestation has taken place in Mapfungautsi forest
across the three vegetation cover types. In terms of
percentages, grassland had the highest proportion
affected by deforestation activities (84%) followed by
bushland (31.1%) and wooded land (9.8%). However,
in terms of total forest area cleared, wooded land had
the highest (6780 ha) compared to grassland (2071 ha)
and bushland (1781 ha) after 20 years (2000 to 2020).
Consequently, the estimated total AGB lost in
Mapfungautsi forest was 387669.53 tonnes with
wooded land contributing 88.8%, bushland – 6.8%
and grassland contributing the remaining 4.4%. A
similar trend was also observed for both the AGCS
and CO2 e. The estimated mean total AGCS and CO2
e lost in Mapfungautsi forest from the year 2000 up
to the year 2020 are 182205.09 tonnes and 668692.69
tonnes respectively (Table 4).
Table 4. Estimated AGB, AGCS and CO2 e lost due to deforestation in Mapfungautsi forest over two decades
Veg Cover Type Forest CoverArea
(ha) in the year
2000
Area cleared
(ha) from
the year 2000
up to 2020
Total mean
AGB lost (t)
from 2000 to
2020
Total mean
AGCS lost (t)
from 2000 to
2020
Total mean CO2
e lost (t) from
2000 to 2020
Wooded land 69295 6780 344288.4 161815.55 593863.07
Bushland 5724 1781 26234.13 12330.04 45251.25
Grassland 2463 2071 17147.88 8059.5 29578.37
Grand Total 774824 10632 387669.53 182205.09 668692.69
IV. DISCUSSION
The study found that, of the three vegetation cover
types, wooded land had the highest observed values
for all the four measured tree growth variables: H,
DBH, stems/ha and regeneration. Conversely,
grassland had the least observed values across all the
four tree growth variables. The reason for this could
be that the the wooded land is dominated by Baikiaea
plurijuga, Julbernadia globiflora and Brachystegia
spiciformis, and Burkea Africana, which are generally
characterised by big-sized trees with big-diameters
compared to bushland and grassland. Bushland has a
less dense forest structure dominated by species such
as terminalia species, parinari curatelifolia, diplorynchus
condylocarpon, pseudolachnostylis maproneifolia.
Julbernardia globiflora and Brachystegia spiciformis,
which are usually medium to big trees but are
generally sparse as compared to teak and miombo
woodlands. The grassland occupied part of the vleis
in Mapfungautsi forest and are composed of
terminalia sericea piliostigma thonningii, acacia fleckii,
dichrostachys cinerea and acacia karoo which are
generally much smaller than wooded land and
bushland. These findings are consistent with findings
from local studies like [14], on a study to quantify the
carbon stock baseline for Ngamo and Sikumi forest
reserves, and elsewhere in Africa, by [1, 15, 16].
Consistent with the measured tree growth variables,
wooded land stored the most AGB, AGC and CO2 e
followed by bushland and grassland. As noted by [15
– 18] large-stem diameter and large trees make a
disproportionately greater contribution to the AGB of
tropical forests. The estimated average AGB were
50.78 t/ha, 14.7 t/ha and 8.28 t/ha for wooded land,
bushland and grassland respectively. The
corresponding estimated maximum AGB values
were 103.41 t/ha, 18.6 t/ha and 10.27 t/ha. Similar
AGB values were observed by [14, 15].
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A total of 10632 ha of Mapfungautsi forest area was
cleared due to deforestation activities over 20 years
(2000 – 2020) with the wooded land contributing the
highest (6780 ha) followed by grassland (2071 ha)
and bushland (1781). However, in terms of the
proportion affected by deforestation activities,
grassland was the most affected (84%) followed by
bushland (31.1%) and lastly wooded land (9.8%).
This is consistent with findings by [9] and [15] who
found grasslands to be characterised by persistent
fires, clearing for settlement and agricultural
activities. Consequently, the estimated mean total
AGB lost in Mapfungautsi forest was 387669.53
tonnes with wooded land contributing 88.8%,
bushland – 6.8% and grassland contributing the
remaining 4.4%. The removal of large trees in
wooded land which store the most biomass and
carbon stocks is responsible for the wooded land
having the greatest proportion of AGB, AGCS and
CO2 e lost. The main anthropogenic factors
responsible for deforestation are for agricultural
purposes, timber logging, firewood and settlement
[4, 9, 19, 20].
Observed AGCS and CO2 e values followed a similar
trend like that of AGB. On average, the estimated
total AGCS and CO2 e lost in Mapfungautsi forest
from the year 2000 up to the year 2020 are 182205.09
tonnes and 668692.69 tonnes respectively. These
figures represent, on average, what was lost in
Mapfungautsi forest from the year 2000 up to the
year 2020 as a result of the action of man. It can be
argued that most of the people responsible for the
deforestation may not even be aware of the far-
reaching effects of their actions [5]. As such, it figures
that, lasting solutions to reduce deforestation and the
resulting loss of AGB and AGCS must be developed
holistically by involving all stakeholders including:
farmers clearing the forest for cropland; government
and local traditional leaders who were reported to be
parcelling land for political expediency and
settlement purposes; timber logging companies;
firewood and timber poachers; relevant government
ministries and departments like Forestry
Commission and the Environmental Management
Agency; and the community at large [9, 21]. Such
genuine engagement is critical in developing
sustainable solutions [22]. The engagement allows for
all concerned to be enlightened on the far-reaching
effects and impacts of deforestation and other
unsustainable land management practices on green
house gases emissions (CO2 e), climate change and
land degradation, all of which drastically affect farm
productivity and thereby food security and
livelihoods. As noted by [5] and [23], communities
have shown a willingness to participate and act
accordingly when their livelihoods are threatened. In
this case, they are most likely going to be ready to do
everything possible to arrest deforestation and even
plant trees to replenish the lost AGB and AGCS.
V. CONCLUSION
Vegetation cover type is a major determinate of AGB,
AGCS and CO2 e stored. Wooded land had the
highest values of the four measured tree growth
variables (H, DBH, number of stems/ha and
regeneration) as well as the estimated average AGB,
AGCS and CO2 e. Bushland vegetation cover type
was second, with grassland recording the lowest
values across board. The study found that
deforestation activities for various purposes in
Mapfungautsi forest over a 20-year period have
resulted in significant clearance of forest area and
significant losses in AGB, AGCS and CO2 e, with the
majority of these losses being recorded in the
wooded land vegetation cover type. This implies
that, to ensure accurate estimation of AGB, AGCS
and CO2 e lost due to deforestation activities, both
vegetation cover type and total cleared forest area
must be considered. Total cleared forest area alone
cannot be taken as proxy for indicating AGB and
AGCS lost. By actually quantifying the average AGB,
AGCS and CO2 e lost, this study added value to
previously conducted researches done in
Mapfungautsi forest (for example [9]), as
stakeholders can now be able to visualise the depth
and the breath of the damning effects of deforestation
on the environment and their livelihoods. This entails
that appropriate remedies like planting suitable tree
species to replenish the biomass and carbon stocks
lost due to deforestation can be easily implemented.
The study has shown that wooded land trees species
characterised by large-stem diameters and tall trees
have a greater potential for mitigating climate change
than bushland and grassland. Beyond the numerous
advantages and applications of this paper, there were
a few limitations which need to be improved on in
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future similar studies. For example, the study
estimated the AGB, AGCS and CO2 e lost in each of
the three vegetation cover types found in
Mapfungautsi forest, in retrospect. This may have
compromised on the accuracy of the actual biomass
and carbon stocks lost in Mapfungautsi forest over 20
years. Despite this limitation, the study is still useful
as a starting point in implementing systems that
report deforestation activities, gains and losses in
biomass and carbon stocks as required by the REDD+
framework and carbon credit systems.
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