Ocean acidification is caused by carbon dioxide from the atmosphere being absorbed by the oceans, which increases acidity levels. Before a few decades, ocean water was basic but acidity has been rising. This poses threats such as damage to marine life, food webs, and ocean goods/services that rely on calcification. Programs are working to increase awareness and research mitigation strategies, though no large-scale reductions have occurred yet. Individual actions like reducing carbon footprints, planting trees, and minimizing vehicle use can help address the problem.
Presentation on Groundwater of BanladeshImran Rakib
This document summarizes a course on fundamentals of environmental science presented by MD Imran Hossain Rakib at Bangladesh University of Professionals. The course objectives are to understand the current status, uses, and pollution of groundwater in Bangladesh, including the impact of arsenic. Most of Bangladesh relies on groundwater, which can become polluted from point sources like leaks or non-point sources like agriculture. High levels of arsenic in groundwater are poisoning crops and humans, as 59 of 64 districts studied had arsenic above the WHO limit of 10 μg/L. Prevention and awareness are needed to address groundwater pollution in Bangladesh.
REVISION AS CAMBRIDGE GEOGRAPHY: RIVERS - CHANNEL EFFICIENCYGeorge Dumitrache
Channel efficiency is measured by calculating the hydraulic radius of the channel cross-section, which is the cross-sectional area divided by the wetted perimeter. A higher hydraulic radius results in a more efficient channel that can transfer water downstream at a higher velocity. Some channel shapes are more efficient because they have a higher proportion of water not in contact with bed and bank materials, experiencing less frictional effects. Channel efficiency normally increases downstream as the channel deepens and widens, resulting in less friction from smoothed bed and bank materials despite additional water inputs.
This presentation summarizes saltwater intrusion in coastal aquifers. Saltwater intrusion occurs when saline water displaces or mixes with freshwater in an aquifer, usually due to groundwater pumping from coastal wells. Saltwater intrusion is influenced by tidal fluctuations, climate changes, sea level rise, excessive freshwater consumption, lack of rainfall, and human activities like agriculture and pumping. Impacts of saltwater intrusion include contamination of freshwater aquifers and decreased agricultural production and drinking water. Proposed remedies include managed aquifer recharge, reducing freshwater usage near coasts, and installing subsurface barriers to control the flow of saltwater.
How to download ground water level data from central groundwater board websit...Sainath Aher
The document provides instructions for downloading ground water level data from the Central Ground Water Board website in India. It outlines 7 steps: 1) Go to the CGWB website, 2) Click the GW Data Access tool link, 3) Select your region and district, 4) Select the year and seasons, 5) Click the link to save the data in Excel format, 6) Save the data file, and 7) Check your downloaded data. The instructions provide a straightforward process for accessing and saving ground water level information from the Indian government website.
The ocean covers two thirds of the planet and provides half of the oxygen and 20% of the protein for the world's population. However, ocean pollution from human activities is causing problems like ocean acidification. Ocean acidification occurs as the ocean absorbs 25% of the carbon dioxide emitted, which causes the pH of the ocean to decrease as carbon dioxide dissolves in seawater. This chemical change affects over 25% of marine species by decreasing the carbonate ions that many shellfish and corals use to build their shells, putting them at risk of dissolving. To slow ocean acidification and its impacts, carbon dioxide emissions must be reduced.
A2 CAMBRIDGE GEOGRAPHY: COASTAL ENVIRONMENTS - WAVE, MARINE AND SUB-AERIAL PROCESSES. An overall presentation of the first sub-chapter of Coastal Environments chapter.
Ocean acidification is caused by carbon dioxide from the atmosphere being absorbed by the oceans, which increases acidity levels. Before a few decades, ocean water was basic but acidity has been rising. This poses threats such as damage to marine life, food webs, and ocean goods/services that rely on calcification. Programs are working to increase awareness and research mitigation strategies, though no large-scale reductions have occurred yet. Individual actions like reducing carbon footprints, planting trees, and minimizing vehicle use can help address the problem.
Presentation on Groundwater of BanladeshImran Rakib
This document summarizes a course on fundamentals of environmental science presented by MD Imran Hossain Rakib at Bangladesh University of Professionals. The course objectives are to understand the current status, uses, and pollution of groundwater in Bangladesh, including the impact of arsenic. Most of Bangladesh relies on groundwater, which can become polluted from point sources like leaks or non-point sources like agriculture. High levels of arsenic in groundwater are poisoning crops and humans, as 59 of 64 districts studied had arsenic above the WHO limit of 10 μg/L. Prevention and awareness are needed to address groundwater pollution in Bangladesh.
REVISION AS CAMBRIDGE GEOGRAPHY: RIVERS - CHANNEL EFFICIENCYGeorge Dumitrache
Channel efficiency is measured by calculating the hydraulic radius of the channel cross-section, which is the cross-sectional area divided by the wetted perimeter. A higher hydraulic radius results in a more efficient channel that can transfer water downstream at a higher velocity. Some channel shapes are more efficient because they have a higher proportion of water not in contact with bed and bank materials, experiencing less frictional effects. Channel efficiency normally increases downstream as the channel deepens and widens, resulting in less friction from smoothed bed and bank materials despite additional water inputs.
This presentation summarizes saltwater intrusion in coastal aquifers. Saltwater intrusion occurs when saline water displaces or mixes with freshwater in an aquifer, usually due to groundwater pumping from coastal wells. Saltwater intrusion is influenced by tidal fluctuations, climate changes, sea level rise, excessive freshwater consumption, lack of rainfall, and human activities like agriculture and pumping. Impacts of saltwater intrusion include contamination of freshwater aquifers and decreased agricultural production and drinking water. Proposed remedies include managed aquifer recharge, reducing freshwater usage near coasts, and installing subsurface barriers to control the flow of saltwater.
How to download ground water level data from central groundwater board websit...Sainath Aher
The document provides instructions for downloading ground water level data from the Central Ground Water Board website in India. It outlines 7 steps: 1) Go to the CGWB website, 2) Click the GW Data Access tool link, 3) Select your region and district, 4) Select the year and seasons, 5) Click the link to save the data in Excel format, 6) Save the data file, and 7) Check your downloaded data. The instructions provide a straightforward process for accessing and saving ground water level information from the Indian government website.
The ocean covers two thirds of the planet and provides half of the oxygen and 20% of the protein for the world's population. However, ocean pollution from human activities is causing problems like ocean acidification. Ocean acidification occurs as the ocean absorbs 25% of the carbon dioxide emitted, which causes the pH of the ocean to decrease as carbon dioxide dissolves in seawater. This chemical change affects over 25% of marine species by decreasing the carbonate ions that many shellfish and corals use to build their shells, putting them at risk of dissolving. To slow ocean acidification and its impacts, carbon dioxide emissions must be reduced.
A2 CAMBRIDGE GEOGRAPHY: COASTAL ENVIRONMENTS - WAVE, MARINE AND SUB-AERIAL PROCESSES. An overall presentation of the first sub-chapter of Coastal Environments chapter.
Climate change will have major impacts on water resources and society. While some impacts like heavier rainfall are more visible, changes like reductions in water supply and quality will also be significant. Vulnerability to climate change is determined by exposure to risks, sensitivity of systems, and adaptive capacity. India faces widespread poverty and many policy and community efforts are needed to build resilience, though many current responses only provide temporary relief. Adaptation is key to reducing the risks of climate change impacts on water and livelihoods.
Ocean acidification is caused by increasing carbon dioxide levels in the oceans due to human emissions since the Industrial Revolution. As CO2 is absorbed by seawater, chemical reactions occur that reduce seawater pH and the concentration of carbonate ions. This process is known as ocean acidification and impacts marine life by making it difficult for calcifying organisms like oysters, corals, and plankton to form their shells and skeletons. While some algae may benefit from higher CO2 levels, most marine species face threats of thinner shells, lower survival rates, and lower population growth under increasingly acidic conditions. Options to mitigate ocean acidification include reducing CO2 emissions, allowing species to adapt or relocate, or developing carbon capture
Desertification is the process by which fertile land becomes desert. It is affecting parts of Africa, especially the Sahel region. The main causes are human activities like overfarming, overgrazing, and deforestation combined with low rainfall. This degrades the soil so plants cannot grow, leaving the ground unprotected from further erosion by wind and water. As the land becomes desert, it negatively impacts people, wildlife and the economy through famine and forced migration. Efforts to stop desertification include planting trees, terracing land, and building irrigation systems.
This document summarizes methods for flood probability analysis and flood frequency analysis. It discusses obtaining flood records, ranking floods by exceedance probability, and plotting the data on probability charts. It also describes regional flood frequency analysis using regional curves, and synthetic unit hydrograph methods for estimating floods in ungauged basins based on geometric properties.
This document describes a method for analyzing gas deliverability through wellhead data. The method combines wellhead deliverability analysis with material balance for depletion-driven gas reservoirs. Key steps include determining deliverability coefficients from wellhead pressure and temperature data, correcting for liquid loading effects, and estimating average reservoir depletion through material balance calculations. The approach provides a responsive analysis of surface/reservoir changes using common wellhead measurements.
A brief description of overall Sylhet Geological Formationiffatshammee
The document is a field report from a geology student on their field work in the Jaintiapur-Tamabil-Jaflong area of Sylhet, Bangladesh. It summarizes the key findings of the field work, including that the area exhibits a faulted anticline structure and contains exposures of the complete Tertiary sedimentary sequence except for the Tura Formation. Nine lithostratigraphic units were identified ranging in age from the Eocene to Recent, deposited in shallow marine to continental environments. Some natural hazards like landslides and flash floods were observed to occasionally affect the local area. No significant mineral deposits were found but gravel resources are economically valuable.
Drought is defined as a continuous period of dry weather that can vary in length between countries. It can be caused by seasonal changes in weather patterns like the Hadley cell and Inter-Tropical Convergence Zone, leading to wet and dry seasons in some regions. Long term droughts over multiple years can have disastrous consequences, affecting both human and natural systems. The consequences of drought include food shortages and the need for food aid when rains fail. Various groups like nomadic pastoralists have adapted to seasonal droughts, while long term management strategies are needed to address extended drought crises.
This document discusses disaster management and flood control. It begins with an introduction to disaster management, including definitions of disaster and disaster risk reduction. It then focuses on floods, describing the different types of floods, their causes, and impacts. The document outlines non-structural and structural approaches to flood control, providing examples of each. It concludes with safety tips for preparing for and responding to flooding emergencies.
Rivers over long periods of time develop a smooth, concave long profile as they adjust their characteristics to transport water and sediment in a state of dynamic equilibrium with their environment. However, occasional events can destabilize this equilibrium, increasing the river's energy and causing it to actively erode its channel to reestablish its optimal long profile through a process called rejuvenation. Common causes of rejuvenation include changes in base level from tectonic uplift or changes in sea level. During rejuvenation, landforms such as waterfalls from knickpoints, incised meanders, and river terraces may form as the river adjusts to its new gradient.
Impact of Climate Change on coastal aquaculture in BangladeshMdNajmusSakib
The main effect of climate change on the coastal region in Bangladesh and the impact of Climate-related change on aquaculture in the context of Bangladesh.
A2 Geography Revision for Coastal Environments, subchapter 8.3 Coral Reefs. It is suitable for Year 13 Geography, Cambridge Examination in November 2016. It contains: key terms and definitions, a topic summary, sketches and descriptions, additional work (6 questions for testing your knowledge) and some suggested websites.
The document discusses water resources in India. It notes that water is essential for life and covers 71% of the Earth's surface, but only 3% is freshwater. It further summarizes that agriculture accounts for 85% of water usage in India, mostly during the monsoon season, and that overuse of water can cause issues like soil erosion. Groundwater accounts for 0.59% of freshwater but supplies 35-50 times more than surface water on average. The document also briefly discusses floods, their causes and effects, and some flood management strategies.
This document discusses flood management strategies in three paragraphs. Hard engineering approaches like dams and levees are mentioned, as well as soft engineering approaches like floodplain management and river restoration. It then provides details on Bangladesh's Flood Action Plan, which relies on embankments along major rivers to control flooding while still allowing benefits from floodwaters. However, opposition to embankments is growing due to problems they can cause by preventing natural drainage. Overall, the document outlines both hard and soft flood management techniques, and summarizes Bangladesh's current national flood control strategy of using embankments.
Urban Flood Risk from Flood Plains to Floor DrainsRobert Muir
Correlation of basement flooding with overland drainage & topographic risk factors during severe storms (Toronto, Ontario, May 12, 2000, August 19, 2005, July 8, 2013 severe storms).
Outline:
Severe Basement Flooding Events – Toronto, ON
Risk Factor Mapping
Overland Drainage (on table land, beyond regulated valley / river flood vulnerable area)
Catchment Relief (topographic slope factors)
Correlation of Observed Flooding, Flood Density and Risks
Joint Back-up and Overland Peril Considerations
De-risk Opportunities
Next Steps for Further Study
Glaciers are melting rapidly due to climate change, threatening water supplies. The Himalayas contain the largest store of glacial ice outside the poles and supply water to over 2 billion people. As glaciers melt, initial floods will be followed by water shortages. Regions heavily dependent on glacial meltwater for agriculture, like parts of South America, are particularly at risk. Wildlife is also threatened by habitat loss as glaciers recede. Water harvesting techniques are helping high-altitude communities adapt to less predictable water availability.
Global warming is causing sea levels to rise faster than ever before due to melting ice sheets and glaciers. Over the last 100 years, sea levels have risen approximately 12-22 cm and are predicted to continue rising throughout the 21st century. Contributors to sea level rise include thermal expansion of oceans as they warm, and melting of glaciers and ice sheets in Greenland and Antarctica. Management strategies to deal with rising seas include reducing greenhouse gas emissions to slow warming, coastal defenses, and proposals to transfer large amounts of water from oceans to land storage.
Ocean Acidification atau Pengasaman samudra adalah salah satu dampak peningkatan gas rumah kaca yang berupa CO2 dimana terjadi penurunan pH perairan akibat semakin banyaknya gas CO2 yang diserap laut/perairan
This presentation talks about the impact on global water resources caused by climate change.
Presentation prepared with the help of Neha Rathi, a volunteer at India Water Portal.
The document discusses self potential (SP) logs, which measure electrical potential differences between points on the ground caused by natural subsurface currents. SP logs have three main conditions: porous and permeable reservoirs bounded by impermeable layers, two different fluid types (e.g. oil, gas, brine), and differences in salinity between fluids. SP logs can be used to find oil and gas reservoirs, determine shale volumes, and understand aquifer levels. They work by detecting potential differences between shales and reservoirs using electrodes during drilling.
Climate change will have major impacts on water resources and society. While some impacts like heavier rainfall are more visible, changes like reductions in water supply and quality will also be significant. Vulnerability to climate change is determined by exposure to risks, sensitivity of systems, and adaptive capacity. India faces widespread poverty and many policy and community efforts are needed to build resilience, though many current responses only provide temporary relief. Adaptation is key to reducing the risks of climate change impacts on water and livelihoods.
Ocean acidification is caused by increasing carbon dioxide levels in the oceans due to human emissions since the Industrial Revolution. As CO2 is absorbed by seawater, chemical reactions occur that reduce seawater pH and the concentration of carbonate ions. This process is known as ocean acidification and impacts marine life by making it difficult for calcifying organisms like oysters, corals, and plankton to form their shells and skeletons. While some algae may benefit from higher CO2 levels, most marine species face threats of thinner shells, lower survival rates, and lower population growth under increasingly acidic conditions. Options to mitigate ocean acidification include reducing CO2 emissions, allowing species to adapt or relocate, or developing carbon capture
Desertification is the process by which fertile land becomes desert. It is affecting parts of Africa, especially the Sahel region. The main causes are human activities like overfarming, overgrazing, and deforestation combined with low rainfall. This degrades the soil so plants cannot grow, leaving the ground unprotected from further erosion by wind and water. As the land becomes desert, it negatively impacts people, wildlife and the economy through famine and forced migration. Efforts to stop desertification include planting trees, terracing land, and building irrigation systems.
This document summarizes methods for flood probability analysis and flood frequency analysis. It discusses obtaining flood records, ranking floods by exceedance probability, and plotting the data on probability charts. It also describes regional flood frequency analysis using regional curves, and synthetic unit hydrograph methods for estimating floods in ungauged basins based on geometric properties.
This document describes a method for analyzing gas deliverability through wellhead data. The method combines wellhead deliverability analysis with material balance for depletion-driven gas reservoirs. Key steps include determining deliverability coefficients from wellhead pressure and temperature data, correcting for liquid loading effects, and estimating average reservoir depletion through material balance calculations. The approach provides a responsive analysis of surface/reservoir changes using common wellhead measurements.
A brief description of overall Sylhet Geological Formationiffatshammee
The document is a field report from a geology student on their field work in the Jaintiapur-Tamabil-Jaflong area of Sylhet, Bangladesh. It summarizes the key findings of the field work, including that the area exhibits a faulted anticline structure and contains exposures of the complete Tertiary sedimentary sequence except for the Tura Formation. Nine lithostratigraphic units were identified ranging in age from the Eocene to Recent, deposited in shallow marine to continental environments. Some natural hazards like landslides and flash floods were observed to occasionally affect the local area. No significant mineral deposits were found but gravel resources are economically valuable.
Drought is defined as a continuous period of dry weather that can vary in length between countries. It can be caused by seasonal changes in weather patterns like the Hadley cell and Inter-Tropical Convergence Zone, leading to wet and dry seasons in some regions. Long term droughts over multiple years can have disastrous consequences, affecting both human and natural systems. The consequences of drought include food shortages and the need for food aid when rains fail. Various groups like nomadic pastoralists have adapted to seasonal droughts, while long term management strategies are needed to address extended drought crises.
This document discusses disaster management and flood control. It begins with an introduction to disaster management, including definitions of disaster and disaster risk reduction. It then focuses on floods, describing the different types of floods, their causes, and impacts. The document outlines non-structural and structural approaches to flood control, providing examples of each. It concludes with safety tips for preparing for and responding to flooding emergencies.
Rivers over long periods of time develop a smooth, concave long profile as they adjust their characteristics to transport water and sediment in a state of dynamic equilibrium with their environment. However, occasional events can destabilize this equilibrium, increasing the river's energy and causing it to actively erode its channel to reestablish its optimal long profile through a process called rejuvenation. Common causes of rejuvenation include changes in base level from tectonic uplift or changes in sea level. During rejuvenation, landforms such as waterfalls from knickpoints, incised meanders, and river terraces may form as the river adjusts to its new gradient.
Impact of Climate Change on coastal aquaculture in BangladeshMdNajmusSakib
The main effect of climate change on the coastal region in Bangladesh and the impact of Climate-related change on aquaculture in the context of Bangladesh.
A2 Geography Revision for Coastal Environments, subchapter 8.3 Coral Reefs. It is suitable for Year 13 Geography, Cambridge Examination in November 2016. It contains: key terms and definitions, a topic summary, sketches and descriptions, additional work (6 questions for testing your knowledge) and some suggested websites.
The document discusses water resources in India. It notes that water is essential for life and covers 71% of the Earth's surface, but only 3% is freshwater. It further summarizes that agriculture accounts for 85% of water usage in India, mostly during the monsoon season, and that overuse of water can cause issues like soil erosion. Groundwater accounts for 0.59% of freshwater but supplies 35-50 times more than surface water on average. The document also briefly discusses floods, their causes and effects, and some flood management strategies.
This document discusses flood management strategies in three paragraphs. Hard engineering approaches like dams and levees are mentioned, as well as soft engineering approaches like floodplain management and river restoration. It then provides details on Bangladesh's Flood Action Plan, which relies on embankments along major rivers to control flooding while still allowing benefits from floodwaters. However, opposition to embankments is growing due to problems they can cause by preventing natural drainage. Overall, the document outlines both hard and soft flood management techniques, and summarizes Bangladesh's current national flood control strategy of using embankments.
Urban Flood Risk from Flood Plains to Floor DrainsRobert Muir
Correlation of basement flooding with overland drainage & topographic risk factors during severe storms (Toronto, Ontario, May 12, 2000, August 19, 2005, July 8, 2013 severe storms).
Outline:
Severe Basement Flooding Events – Toronto, ON
Risk Factor Mapping
Overland Drainage (on table land, beyond regulated valley / river flood vulnerable area)
Catchment Relief (topographic slope factors)
Correlation of Observed Flooding, Flood Density and Risks
Joint Back-up and Overland Peril Considerations
De-risk Opportunities
Next Steps for Further Study
Glaciers are melting rapidly due to climate change, threatening water supplies. The Himalayas contain the largest store of glacial ice outside the poles and supply water to over 2 billion people. As glaciers melt, initial floods will be followed by water shortages. Regions heavily dependent on glacial meltwater for agriculture, like parts of South America, are particularly at risk. Wildlife is also threatened by habitat loss as glaciers recede. Water harvesting techniques are helping high-altitude communities adapt to less predictable water availability.
Global warming is causing sea levels to rise faster than ever before due to melting ice sheets and glaciers. Over the last 100 years, sea levels have risen approximately 12-22 cm and are predicted to continue rising throughout the 21st century. Contributors to sea level rise include thermal expansion of oceans as they warm, and melting of glaciers and ice sheets in Greenland and Antarctica. Management strategies to deal with rising seas include reducing greenhouse gas emissions to slow warming, coastal defenses, and proposals to transfer large amounts of water from oceans to land storage.
Ocean Acidification atau Pengasaman samudra adalah salah satu dampak peningkatan gas rumah kaca yang berupa CO2 dimana terjadi penurunan pH perairan akibat semakin banyaknya gas CO2 yang diserap laut/perairan
This presentation talks about the impact on global water resources caused by climate change.
Presentation prepared with the help of Neha Rathi, a volunteer at India Water Portal.
The document discusses self potential (SP) logs, which measure electrical potential differences between points on the ground caused by natural subsurface currents. SP logs have three main conditions: porous and permeable reservoirs bounded by impermeable layers, two different fluid types (e.g. oil, gas, brine), and differences in salinity between fluids. SP logs can be used to find oil and gas reservoirs, determine shale volumes, and understand aquifer levels. They work by detecting potential differences between shales and reservoirs using electrodes during drilling.
tất tật những gì có về đnn, nói vậy thôi chứ trong thư viện Quốc gia ở Tràng Thi có bộ to bự về nó, cái tiểu luận này chỉ cóp nhặt mấy thứ hay ho nhỏ bé.
Phân tích những yếu tố ảnh hưởng đến môi trường trong nuôi trồng thủy sản ở C...anh hieu
Để nghiên cứu, tìm hiểu về thực trạng và phân tích nguyên nhân, yếu tố dẫn đến ô nhiễm môi trường trong nuôi trồng thủy sản ở Cà Mau và đưa ra giải pháp khắc phục về vấn đề nêu trên, tôi xin chọn đề tài: “ Phân tích những yếu tố ảnh hưởng đến môi trường trong nuôi trồng thủy sản ở Cà Mau - thực trạng và giải pháp ” làm tiểu luận cuối môn học Luật Môi Trường. Do kiến thức còn hạn hẹp, kính nhờ Cô giúp đỡ và hướng dẫn để tôi hoàn thành tốt tiểu luận này. Trân trọng cảm ơn!
Policy orientations for protection and development of mangroves in the 2021–2...CIFOR-ICRAF
Một số cơ chế, chính sách bảo vệ và phát triển rừng ven biển, rừng ngập mặn giai đoạn 2021-2030, tầm nhìn đến năm 2050
Presented by Nguyen Chien Cuong (MARD) at "Policy, Technical and Financial Solutions to Improve the Effectiveness of Mangrove Forest Protection and Development in Vietnam in 2021–2030, with a Vision to 2050" on 15 March 2022
Can Gio Tourist tổ chức các tour du lịch cần giờ giá rẻ phục vụ du kháchCanGio Tourist
Bạn đang muốn du lịch cần giờ giá rẻ hãy đến với Cần Giờ Tourist để tận hưởng những chuyến đi thú vị, hãy cùng gia đình và người thân tận hưởng khoảng thời gian tuyệt vời nhất.
Email: sales.cangiotourist@gmail.com
Địa chỉ: Dần Xây, Đường Rừng Sác, An Thới Đông, Cần Giờ, Tp.HCM
Hotline: 02866796959
Vương Cần Giờ Tourist môt nhân viên hướng dẫn
Cần Giờ Tourist đơn vị hàng đầu tổ chức tour biển cần giờ
Email: sales.cangiotourist@gmail.com
Địa chỉ: Dần Xây, Đường Rừng Sác, An Thới Đông, Cần Giờ, Tp.HCM
Hotline: 028 66 79 69 59
Bản đồ nhạy cảm môi trường và phân vùng ưu tiên dải ven bờ biển tỉnh thái bìn...SOS Môi Trường
Tỉnh Thái Bình có đường bờ biển dài trên 54km với hệ thống rừng ngập mặn dày, có độ đa dạng sinh học cao và nằm trong vùng lõi của khu dự trữ sinh quyển sông Hồng đã được Tổ chức Giáo dục, Khoa học và Văn hóa Liên Hiệp Quốc (UNESCO) công nhận [8].
Không tồn tại hình ảnh về Bản đồ nhạy cảm môi trường và phân vùng ưu tiên dải ven bờ biển tỉnh Thái Bình đối với sự cố tràn dầu. Với lợi thế bãi biển rộng 2,7 - 5,6km, Thái Bình đang phát triển mạnh ngành nuôi trồng thủy sản nên rất nhạy cảm với sự cố tràn dầu. Do đó, việc nghiên cứu xây dựng bản đồ nhạy cảm môi trường sẽ giúp nâng cao hiệu quả ứng phó sự cố tràn dầu cho tỉnh Thái Bình và giảm thiểu thiệt hại kinh tế, góp phần bảo vệ môi trường sinh thái.
Bài Tiểu Luận Môi Trường Đề Tài Sinh Thái Biển, 9 Điểm. Thủy sản là một thuật ngữ chỉ những nguồn lợi, sản vật đem lại cho con người từ môi trường nước và được con người khai thác, nuôi trồng thu hoạch sử dụng làm thực phẩm, nguyên liệu hoặc bày bán trên thị trường.
Similar to Dự án học tập: Tìm hiểu diễn thế sinh thái rừng ngập mặn Bàu Cá Cái - Bình Sơn (20)
kl_HOÀN THIỆN CÔNG TÁC ĐÁNH GIÁ THỰC HIỆN CÔNG VIỆC TẠI CÔNG TY CỔ PHẦN ĐẦU T...Luận Văn Uy Tín
Luận Văn Uy Tín cung cấp dịch vụ viết thuê luận văn thạc sĩ, tốt nghiệp, báo cáo thực tập, hoàn tiền 100% nếu bài bị đánh rớt, bảo mật thông tin, giao bài đúng hạn.
6. QUÁ TRÌNH DIỄN THẾ XẢY RA Ở RỪNG NGẬP MẶN
Giai đoạn khởi đầu: các cây tiên phong khi bãi triều được hình thành. Các loài này có tác
dụng cố định đất, giữ phù sa và trầm tích lại, đất bùn ngày càng chặt hơn, thời gian ngập triều ngắn
lại, độ mặn giảm đã tạo điều kiện cho các loài sau đến sinh trưởng thuận lợi hơn, số loài phong phú
dần lên.
Giai đoạn giữa: đến một mức phát triển nhất định lại nảy sinh sự cạnh tranh về thức ăn, ánh
sáng và điều kiện môi trường không thuận lợi nhất, thì loài đến trước sẽ bị tiêu diệt dần để các loài
sau chiếm ưu thế.
Giai đoạn ổn định: quần xã ở giai đoạn ổn định có thành phần loài và cấu trúc quần xã tương
đối đơn giản hơn. Trong giai đoạn cuối, khi đất không còn ngập triều, bùn khô và đặc tính đất cũng
thay đổi lớn thì diễn thế chuyển sang giai đoạn thoái hóa do môi trường không còn phù hợp cho
cây ngập mặn nữa.
7. LỊCH SỬ HÌNH THÀNH
• Rừng ngập mặn nguyên sinh ở đây
có diện tích 10 ha, qua thời gian do
biến đổi của khí hậu miền Trung
mưa bão hằng năm và tác động của
con người cùng với nhiều dự án
nhà máy mọc lên nên rừng cũng
thưa thớt dần.
• Rừng hồi sinh mở rộng như bây
giờ là ý thức của người dân, sự vào
cuộc quyết liệt của chính quyền địa
phương các cấp. Cùng với đó là sự
chung tay bảo vệ, hỗ trợ của một số
tổ chức, cá nhân có liên quan trong
và ngoài nước”.
8. LỊCH SỬ HÌNH THÀNH
Từ năm 2014, Dự án trồng mới và phục hồi rừng ngập mặn ven biển tăng cường khả năng chống
chịu với những tác động của biến đổi khí hậu cho các cộng đồng dễ bị tổn thương ven biển Việt
Nam giao cho Sở Tài nguyên và Môi trường tỉnh Quảng Ngãi làm chủ đầu tư đã trồng hơn 50ha
rừng ngập mặn tại bàu Cá Cái. Diện tích đang sinh trưởng phát triển rất tốt. Từ năm 2019 đến
nay, dự án GCF – UNDP kết hợp với nguồn của tỉnh tiếp tục đầu tư trồng mới thêm khoảng 22,5
ha (kế hoạch 25 ha) và hỗ trợ hộ dân nhận khoán bảo vệ 50 ha rừng nói trên để cải thiện sinh kế.
9. THỰC VẬT
Hệ thực vật tự nhiên và hệ thực vật trồng,chủ yếu là cây cóc trắng, cây
đước thích nghi với môi trường nước lợ
10. ĐỘNG VẬT
Sau khi có rừng ngập
mặn, các loài chim, cò,
đặc biệt là vịt trời về đây
cư trú, sinh sản rất nhiều.
11.
12. Rừng ngập mặn Bàu Cá Cái có một hệ động vật phong phú. Khu hệ động vật thủy sinh không
xương sống như cá, tôm, cua, lưỡng cư, bò sát, chim,…
13.
14. TẦM QUAN TRỌNG CỦA RỪNG NGẬP MẶN
- Ngăn ngừa xói mòn và mở rộng đất bồi
- Phòng chống bão, sóng thần và bảo vệ vùng ven biển
- Chống ô nhiễm nước
- Điều hòa khí hậu
- Hạn chế xâm nhập mặn
- Nơi cư trú của các loài động, thực vật.
- Cung cấp thực phẩm, dược liệu
- Du lịch, nghiên cứu khoa học
- ….
15. Hiệntrạng
Ngày 10-5, Chi cục Kiểm lâm tỉnh
Quảng Ngãi cho biết đã nắm báo cáo
của Trung tâm Nông - lâm nghiệp Dung
Quất (huyện Bình Sơn, Quảng Ngãi) về
việc nhiều hộ dân đào ao, phá rừng vừa
trồng, lấn chiếm diện tích rừng ngập
mặn bàu Cá Cái, xã Bình Thuận, huyện
Bình Sơn