This lecture was delivered to Agricultural Instructors working for Climate Smart Agriculture Project in 11 districts in the dry zone of Sri Lanka. It includes Climate Smart Agriculture, Special characters in CSA, technological packages for crops such as paddy, maize etc. and livestock such as cattle, poultry etc.
This lecture was delivered for the Agricultural Instructors working for Climate Smart Agriculture project in 11 districts in the dry zone of Sri Lanka. It includes climate change and climate variability, Relevance of global impacts of climate change. Green House Gas (GHG) emission, Reduction of GHG in the agriculture sector, targets for GHG reduction up to 2050, new agriculture concepts to reduce GHG and increase carbon sequestration
crop yield response to water, importance of water in plant life, relation between yield and water, functional relation of crop yield and water, yield response function, yield response factor, yield response curve, factors affecting yield response curve, production function of irrigation water
Management of Soils in the dry zone of Sri Lanka (Sinhala).pdfDr. P.B.Dharmasena
This lecture was delivered to Agricultural Instructors working for Climate Smart Agriculture Project in 11 dry zone districts of Sri Lanka. It includes most abundant soils in Sri Lanka, Land degradation, Sustainable Land Management, new concepts immerged in agriculture to address climate change impacts.
This lecture was delivered for the Agricultural Instructors working for Climate Smart Agriculture project in 11 districts in the dry zone of Sri Lanka. It includes climate change and climate variability, Relevance of global impacts of climate change. Green House Gas (GHG) emission, Reduction of GHG in the agriculture sector, targets for GHG reduction up to 2050, new agriculture concepts to reduce GHG and increase carbon sequestration
crop yield response to water, importance of water in plant life, relation between yield and water, functional relation of crop yield and water, yield response function, yield response factor, yield response curve, factors affecting yield response curve, production function of irrigation water
Management of Soils in the dry zone of Sri Lanka (Sinhala).pdfDr. P.B.Dharmasena
This lecture was delivered to Agricultural Instructors working for Climate Smart Agriculture Project in 11 dry zone districts of Sri Lanka. It includes most abundant soils in Sri Lanka, Land degradation, Sustainable Land Management, new concepts immerged in agriculture to address climate change impacts.
This Project is all about agriculture techniques and ideas in which they can be sustained for future. Its main objective is to communicate about the methods and benefits of Sustainable Agriculture.
Conservation agriculture is based on maximizing yield and to achieve a balance of agricultural, economic and environmental benefits.
Conservation agriculture useful for meeting future food demands and also contributing to sustainable agriculture.
Conservation agriculture helps to minimizing the negative environmental effect and equally important to increased income to help the livelihood of those employed in agril. Production.
Introduction of conservation technologies (CT) was an important break through for sustaining productivity
The lecture delivered for Agricultural Instructors working for Climate Smart Agriculture Project in 11 districts of Sri Lanka. It explains the difference between climate and weather, factors affecting climate variation in Sri Lanka, Rainfall, altitude, degree of wetness etc.
This is the 3rd lesson taught to students of B.A. (General) at the Faculty of Social Sciences and Humanities, Rajarata University of Sri Lanka, under the course; Water Resources Planning and Development
Water harvesting techniques for arid and semi arid regionsUbaidAbdulKhaliq
Arid regions are known for prolong drought periods, leading to water scarcity. Some water harvesting techniques can be applied to ensure water availability during drought periods.
In this PPT you will learn about the watershed management of different crops, it types, objectives, different factors,its advantages and its dis-advantages and its sailent features etc.,..
so use it effecctively and efficiently.
This is lesson 1 for Three Day Residential Training Workshop on Cascade Water Resources Development and Management prepared for Climate Resilient Integrated Water Management Project Project
quality of water irrigation and factors lead poor water qualitynasuura
Water quality is the physical, chemical, biological, and aesthetic characteristics of water which determines its fitness for a variety of uses and for protecting the health and integrity of aquatic ecosystems.
Another general perception of water quality is that of a simple
property that tells whether water is polluted or not. Water
quality depends on the local geology and ecosystem, as well as
human uses such as sewage dispersion, industrial pollution, use
of water bodies as a heat sink, and overuse (which may lower the level of the water).
Agriculture, nursery, and turfgrass managers depend on an adequate supply of water for irrigation. With the increasing demand for potable water, irrigation managers are turning to alternative, poorer quality sources of water (e.g., recycled runoff, saline groundwater, reclaimed water) for irrigation purposes.
Poor quality irrigation water poses many hazards to plant production if not managed properly.
Environmental Problems in Water Resources Development. This is the 2nd lesson taught to students of B.A. (General) degree programme under Water Resources Planning and Development Course at Faculty of Social Sciences and Humanities, Rajarata University of Sri Lanka, Mihintale.
Lesson 1 wrpd introduction - Ancient water resources management in Sri Lanka Dr. P.B.Dharmasena
This is the first lesson of the course - Water Resources Planning and Development taught at the Faculty of Social Sciences and Humanities, Rajarata University of Sri Lanka, Mihintale
This is a presentation made on Climate Smart Agriculture for training of trainers under the project on Building Resilience and Strengthening Community Disaster Preparedness in Sri Lanka
4 Climate Resilience WV English for training of trainersDr. P.B.Dharmasena
This is a presentation made for trainers on Climate Resilience
under the project on Building Resilience and Strengthening Community Disaster Preparedness in Sri Lanka
This Project is all about agriculture techniques and ideas in which they can be sustained for future. Its main objective is to communicate about the methods and benefits of Sustainable Agriculture.
Conservation agriculture is based on maximizing yield and to achieve a balance of agricultural, economic and environmental benefits.
Conservation agriculture useful for meeting future food demands and also contributing to sustainable agriculture.
Conservation agriculture helps to minimizing the negative environmental effect and equally important to increased income to help the livelihood of those employed in agril. Production.
Introduction of conservation technologies (CT) was an important break through for sustaining productivity
The lecture delivered for Agricultural Instructors working for Climate Smart Agriculture Project in 11 districts of Sri Lanka. It explains the difference between climate and weather, factors affecting climate variation in Sri Lanka, Rainfall, altitude, degree of wetness etc.
This is the 3rd lesson taught to students of B.A. (General) at the Faculty of Social Sciences and Humanities, Rajarata University of Sri Lanka, under the course; Water Resources Planning and Development
Water harvesting techniques for arid and semi arid regionsUbaidAbdulKhaliq
Arid regions are known for prolong drought periods, leading to water scarcity. Some water harvesting techniques can be applied to ensure water availability during drought periods.
In this PPT you will learn about the watershed management of different crops, it types, objectives, different factors,its advantages and its dis-advantages and its sailent features etc.,..
so use it effecctively and efficiently.
This is lesson 1 for Three Day Residential Training Workshop on Cascade Water Resources Development and Management prepared for Climate Resilient Integrated Water Management Project Project
quality of water irrigation and factors lead poor water qualitynasuura
Water quality is the physical, chemical, biological, and aesthetic characteristics of water which determines its fitness for a variety of uses and for protecting the health and integrity of aquatic ecosystems.
Another general perception of water quality is that of a simple
property that tells whether water is polluted or not. Water
quality depends on the local geology and ecosystem, as well as
human uses such as sewage dispersion, industrial pollution, use
of water bodies as a heat sink, and overuse (which may lower the level of the water).
Agriculture, nursery, and turfgrass managers depend on an adequate supply of water for irrigation. With the increasing demand for potable water, irrigation managers are turning to alternative, poorer quality sources of water (e.g., recycled runoff, saline groundwater, reclaimed water) for irrigation purposes.
Poor quality irrigation water poses many hazards to plant production if not managed properly.
Environmental Problems in Water Resources Development. This is the 2nd lesson taught to students of B.A. (General) degree programme under Water Resources Planning and Development Course at Faculty of Social Sciences and Humanities, Rajarata University of Sri Lanka, Mihintale.
Lesson 1 wrpd introduction - Ancient water resources management in Sri Lanka Dr. P.B.Dharmasena
This is the first lesson of the course - Water Resources Planning and Development taught at the Faculty of Social Sciences and Humanities, Rajarata University of Sri Lanka, Mihintale
This is a presentation made on Climate Smart Agriculture for training of trainers under the project on Building Resilience and Strengthening Community Disaster Preparedness in Sri Lanka
4 Climate Resilience WV English for training of trainersDr. P.B.Dharmasena
This is a presentation made for trainers on Climate Resilience
under the project on Building Resilience and Strengthening Community Disaster Preparedness in Sri Lanka
This is a TOT presentation made on Climate Change Mitigation and Adaptation Strategies for the project - Building Resilience and Strengthening Community Disaster Preparedness in Sri Lanka
2 Climate change on agriculture for training of trainersDr. P.B.Dharmasena
This is a TOT presentation on Agriculture and Climate Change
made for the project - Building Resilience and Strengthening Community Disaster Preparedness in Sri Lanka
1 Climate and Soil for training of trainers.WV English.pdfDr. P.B.Dharmasena
This is a presentation made for trainers on soil and climate under the project on Building Resilience and Strengthening Community Disaster Preparedness in Sri Lanka
Developing 2050 Carbon Net Zero Road Map & Strategic Plan for Sri Lanka - ...Dr. P.B.Dharmasena
This validation workshop was held after preparing the Road Map and Strategic Plan for Sri Lanka and the authors are responsible for the agriculture sector.
Sustainable Water Management in Cascade System: A model in Environmentally Se...Dr. P.B.Dharmasena
Introduction
Origin of tank cascade concept
Tank cascade systems of Sri Lanka: Anatomy, distribution and definitions
Importance of cascade approach
Traditional tank-village ecosystem – adaptive capacity for present situation
Restoration of Tank Cascade Systems for Productivity and SustainabilityDr. P.B.Dharmasena
Presentation made for Technical staff of Climate Resilient Integrated Water Management Project (CRIWMP) at Kurunegala on 9th May 2018
Why cascade systems again?
Drought and flood events can be expected more due to climate change
High prevalence of poverty in tank cascade areas
Mal-nutrition can be greatly reduced by tank fishery and animal husbandry
Better land use under cascade principles – addresses ecological issues such as clearance of village forests, unsustainable land use etc.
Improve living conditions
Health issues ? – drinking water, contamination of agro-chemicals and heavy metals leads to kidney failures, malaria etc.
Most importantly It is an answer to drought hazards
A rainwater harvesting technology;
A soil moisture and groundwater maintaining technology;
A soil erosion and siltation control technology;
A technology that ensured the maintenance of ecological balance;
A technology that promotes social cohesion and needs for community leadership;
A system that accommodates spiritual development which promotes egalitarian (equally treated) attitudes especially during droughts;
A system that nurtured the development of drought insurance through animal husbandry
Cascade Tank Village System and identification of novel post graduate researc...Dr. P.B.Dharmasena
Seminar on Research collaboration opportunities with School of Environment and Rural Science, University of New England, Australia - 14th September 2018, NRMC, Peradeniya, Sri Lanka
Main GHGs from agricultural lands are CH4 and N2O
GHG emission can be reduced by 60 % in 2050 through:
Removal of rice straws and through good management practices in paddy fields
Use alternatives to chemical fertilizer
CH4 reduction from livestock by improving feed quality and animal comfort
Reduce N2O emission in soils
Enhance C sequestration in paddy and rainfed uplands through ‘Evergreen Agro-ecosystem’ concept
Carbon stock in agricultural lands can be enhanced by improving land management practices
C sequestration in tea lands can be increased through: Agro-ecosystem approach; Crop diversification; Intercropping; Introduction of shade trees with optimum density; and Rehabilitation of old tea lands
C stock can be increased by 267 % by the year 2050 through Home Garden Intensification
If the proposed mitigation actions are implemented, the country will be able to achieve Net Zero by 2038.
Progress of Improving System Efficiencies and Water Productivity (ISEWP): A C...Dr. P.B.Dharmasena
Objective: To analyze and demonstrate sustainable increases in irrigation system efficiencies and water productivity (in both yields and returns) that can be readily adopted in irrigation schemes and farms within the Mahaweli System.
Approach: The approach is in two inter-related parts;
Part 1 - case study irrigation systems, and
Part 2 - pilot demonstrations
Inception workshop held on 10th December 2018
Report submitted accommodating comments several times.
The Inception Report was finally accepted by the client on 19th July 2019 one month after the departure of the former Team Leader.
The progress has been seriously affected due to above reason
Up to now 6 monthly progress reports from April to September 2019 have been submitted
Lesson Four - Indigenous Village Irrigation Systems, traditional small scale ...Dr. P.B.Dharmasena
This is the Guest Lecture 4 delivered for Agriculture students of the Faculty of Agriculture, Rajarata University of Sri Lanka.
It explains:
Globally Important Agricultural Heritage System
Ancient water resources management planning in Sri Lanka
Tank Cascade Systems of Sri Lanka
Tank-village Ecosystem
Traditional Vision of Water Management
Restoration of Village Irrigation Systems
ISEWP will facilitate (technically) agencies in the implementation process of sustainable rice based agro-ecosystems.
All relevant agencies will implement sustainable rice field agro-ecosystems through Policy formulation, participatory technology demonstration, fund diversion, knowledge management. .
All agricultural users will adopt rice agro-ecosystem practices'
through
Participatory technology demonstration, extension and training.
Lessons adoptable from ancient water management of Sri LankaDr. P.B.Dharmasena
The presentation discussed the objectives of ancient water management in Sri Lanka as:
1. Irrigation for food production
2. Human needs (settlement, drinking water, bathing, domestic needs etc.)
3. Rainwater harvesting systems
4. Environmental existence (flora, fauna etc.)
5. Building cities (Anuradhapura, Sigiriya etc.)
6. Urban planning
7. Basis for administrative boundaries
8. Mitigation of natural disasters (drought, flood, cyclone, epidemics etc.)
13. 0
200
400
600
800
1000
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OCTOBER NOVEMBER DECEMBER JANUARY
WATER
USE
(MM)
MONTH
VARIATION OF RAINFALL AND IRRIGATION
USE WITH CULTIVATION TIME
Irrigation requirement
Rainfall use
වර්ෂාපතනය සමග වාරි ජල අවශයතාවය දවනසේ වීම