This is the 7th lesson of the course - Water Resources Planning and Development, taught to the students of BA (General) at the Faculty of Social Sciences and Humanities, Rajarata University of Sri Lanka
This is the third lecture of the course 'Irrigation based Agro-ecosystems' conducted at the Faculty of Social Sciences and Humanities of the Rajarata University of Sri Lanka
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
This is lesson No. 9 of the course - Water Resources Planning and Development taught to BA (General) degree students at the Faculty of Social Sciences and Humanities, Rajarata University of Sri Lanka, Mihintale
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.)
This presentation explains the ancient master plan of water resources management, tank cascades - spatial distribution, definitions, and importance, ecosystem services, and functions and planning procedures.
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
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.
This is the third lecture of the course 'Irrigation based Agro-ecosystems' conducted at the Faculty of Social Sciences and Humanities of the Rajarata University of Sri Lanka
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
This is lesson No. 9 of the course - Water Resources Planning and Development taught to BA (General) degree students at the Faculty of Social Sciences and Humanities, Rajarata University of Sri Lanka, Mihintale
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.)
This presentation explains the ancient master plan of water resources management, tank cascades - spatial distribution, definitions, and importance, ecosystem services, and functions and planning procedures.
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
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.
The lecture contains aspects such as Ancient Water Resources Planning, Water shortage, or water wastage in Sri Lanka?, Network of tanks and streams in the form of cascades, Tank-village Ecosystem, Patial desilting concept
Springshed Management in HP_Dr Sunesh Sharma (PSI)_2014India Water Portal
This document summarizes a case study of springshed management in Sirmaur District of Himachal Pradesh, India. It provides demographic data and cropping patterns for the villages studied. Interventions included geological mapping, spring inventories, rain gauge installation, and formation of water management committees. Recharge structures like trenches and infiltration wells were constructed. Monthly water discharge was monitored and water quality improved after interventions. Impacts included formation of water user groups, increased and equitable access to water, improved source cleanliness, and a shift to more efficient irrigation patterns.
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.
The document provides an outline for a presentation on the SWAT (Soil and Water Assessment Tool) hydrological model. It begins with an introduction to hydrological modeling and the development and utilities of the SWAT model. It describes the data requirements, model framework, and step-by-step procedure to run the model. A case study applying the SWAT model to the Simly Dam watershed in Pakistan is summarized. The limitations and future developments of the SWAT model are briefly discussed, followed by references.
Water management in Nepal by Krishna SedaiKrishna Sedai
This document provides an overview of water management in Nepal and irrigation management organizations. It discusses that Nepal has abundant water resources but only a small portion is utilized. It also outlines the key institutions and organizations involved in setting policies and plans, regulating, and providing water services in Nepal. These include the Ministry of Energy, Water Resources and Irrigation, the Irrigation and Water Resources Management Project, and Community Managed Irrigated Agriculture Sector Project, which work to improve irrigation and agriculture. Farmer Managed Irrigation Systems are also discussed as important indigenous organizations for managing local water resources.
The document discusses integrated water resource management and its various components and challenges. It addresses managing water resources for multiple purposes across different agencies, regions, and disciplines. Integrated management considers natural water systems and promotes conservation, public health, and stakeholder involvement through a dynamic process. It emphasizes efficient agricultural water use and managing irrigation water for drinking. Conservation planning and least-cost planning are methods to balance supply and demand management.
The document discusses the global and Indian water crisis. It notes that over 1 billion people lack access to safe water and that water scarcity will affect 2/3 of the world's population by 2025. In India, water availability is very low compared to global averages and many areas already experience severe water stress. The major challenges facing India are rapid population growth, overexploitation of groundwater, pollution of existing supplies, and poor management. Potential solutions discussed include conservation efforts, water recycling, desalination plants, water footprinting, and rainwater harvesting.
Please Read and then contact me mapesanestory@yahoo.com/ kabaganga@gmail.com/ mapesanestory@outlook.com or +255752997756/+255684248202 For more readings
This is the 5th lesson of the course - Water Resources Planning and Development taught to students of BA (General), Faculty of Social Sciences and Humanities, Rajarata University of Sri Lanka
Water conservation is an innovative approach required to be adopted to recharge ground water. This includes check-dams, farm ponds,ponds on terraces of hills etc
The document discusses integrated water resources management (IWRM) in Nepal. It begins by defining IWRM and outlining its key principles. It then describes Nepal's water resources and the various ways water is used. The document also discusses the challenges facing water management in Nepal and outlines the tools and approaches used in IWRM, including water assessments, impact assessments, and performance evaluation. It analyzes Nepal's policies and institutions related to IWRM and concludes that while IWRM principles have been adopted, developing effective local institutions remains a challenge.
This document provides an overview of various topics related to irrigation, including different irrigation methods like drip, sprinkler and border strip irrigation. It discusses design aspects and components of these systems as well as their operation and maintenance. Other topics covered include irrigation scheduling, efficiency and water quality issues. It also touches on water management challenges like waterlogging and the role of community participation and water user organizations. The document outlines the term work which involves a presentation, assignments and exam on the introductory chapters.
A hand note on water resource management, specially in the context of Bangladesh. I prepared the note for the MS final exam on the course water resource management.
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 document summarizes a student project using HEC-HMS software to model rainfall runoff. The project aims to study and simulate the rainfall runoff process, learn how to use the modeling software, prepare a draft model, and compute and model runoff. Key aspects of the model include subdividing the area into sub-basins representing different land uses like residential and cultivated areas, inputting precipitation data and metrological models, using the SCS curve number loss model to compute losses, and running a simulation to output results.
This document discusses the sustainable management of water resources. It notes that river basins integrate economic, social, and environmental systems across political boundaries, so water management decisions should reflect this integrative nature. When systems are not managed sustainably, such as in the Aral Sea region where unsustainable irrigation practices depleted the sea, severe environmental, health, and economic problems can result. Achieving sustainable water resources management requires taking a basin-scale, multidisciplinary approach that considers impacts across different levels and balances current and future needs.
This document summarizes the concept of river basin management on a global scale and in India. It discusses how several countries have established River Basin Organizations to facilitate integrated planning and management of water resources within hydrological boundaries. In the US, the Tennessee Valley Authority pioneered this approach. In the UK, regional water authorities successfully manage resources across multiple uses in each river basin. Similar basin-scale management models exist in other countries like Australia, France and India. The document advocates adopting a holistic basin approach in India to address water-related issues in a sustainable manner.
The lecture contains aspects such as Ancient Water Resources Planning, Water shortage, or water wastage in Sri Lanka?, Network of tanks and streams in the form of cascades, Tank-village Ecosystem, Patial desilting concept
Springshed Management in HP_Dr Sunesh Sharma (PSI)_2014India Water Portal
This document summarizes a case study of springshed management in Sirmaur District of Himachal Pradesh, India. It provides demographic data and cropping patterns for the villages studied. Interventions included geological mapping, spring inventories, rain gauge installation, and formation of water management committees. Recharge structures like trenches and infiltration wells were constructed. Monthly water discharge was monitored and water quality improved after interventions. Impacts included formation of water user groups, increased and equitable access to water, improved source cleanliness, and a shift to more efficient irrigation patterns.
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.
The document provides an outline for a presentation on the SWAT (Soil and Water Assessment Tool) hydrological model. It begins with an introduction to hydrological modeling and the development and utilities of the SWAT model. It describes the data requirements, model framework, and step-by-step procedure to run the model. A case study applying the SWAT model to the Simly Dam watershed in Pakistan is summarized. The limitations and future developments of the SWAT model are briefly discussed, followed by references.
Water management in Nepal by Krishna SedaiKrishna Sedai
This document provides an overview of water management in Nepal and irrigation management organizations. It discusses that Nepal has abundant water resources but only a small portion is utilized. It also outlines the key institutions and organizations involved in setting policies and plans, regulating, and providing water services in Nepal. These include the Ministry of Energy, Water Resources and Irrigation, the Irrigation and Water Resources Management Project, and Community Managed Irrigated Agriculture Sector Project, which work to improve irrigation and agriculture. Farmer Managed Irrigation Systems are also discussed as important indigenous organizations for managing local water resources.
The document discusses integrated water resource management and its various components and challenges. It addresses managing water resources for multiple purposes across different agencies, regions, and disciplines. Integrated management considers natural water systems and promotes conservation, public health, and stakeholder involvement through a dynamic process. It emphasizes efficient agricultural water use and managing irrigation water for drinking. Conservation planning and least-cost planning are methods to balance supply and demand management.
The document discusses the global and Indian water crisis. It notes that over 1 billion people lack access to safe water and that water scarcity will affect 2/3 of the world's population by 2025. In India, water availability is very low compared to global averages and many areas already experience severe water stress. The major challenges facing India are rapid population growth, overexploitation of groundwater, pollution of existing supplies, and poor management. Potential solutions discussed include conservation efforts, water recycling, desalination plants, water footprinting, and rainwater harvesting.
Please Read and then contact me mapesanestory@yahoo.com/ kabaganga@gmail.com/ mapesanestory@outlook.com or +255752997756/+255684248202 For more readings
This is the 5th lesson of the course - Water Resources Planning and Development taught to students of BA (General), Faculty of Social Sciences and Humanities, Rajarata University of Sri Lanka
Water conservation is an innovative approach required to be adopted to recharge ground water. This includes check-dams, farm ponds,ponds on terraces of hills etc
The document discusses integrated water resources management (IWRM) in Nepal. It begins by defining IWRM and outlining its key principles. It then describes Nepal's water resources and the various ways water is used. The document also discusses the challenges facing water management in Nepal and outlines the tools and approaches used in IWRM, including water assessments, impact assessments, and performance evaluation. It analyzes Nepal's policies and institutions related to IWRM and concludes that while IWRM principles have been adopted, developing effective local institutions remains a challenge.
This document provides an overview of various topics related to irrigation, including different irrigation methods like drip, sprinkler and border strip irrigation. It discusses design aspects and components of these systems as well as their operation and maintenance. Other topics covered include irrigation scheduling, efficiency and water quality issues. It also touches on water management challenges like waterlogging and the role of community participation and water user organizations. The document outlines the term work which involves a presentation, assignments and exam on the introductory chapters.
A hand note on water resource management, specially in the context of Bangladesh. I prepared the note for the MS final exam on the course water resource management.
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 document summarizes a student project using HEC-HMS software to model rainfall runoff. The project aims to study and simulate the rainfall runoff process, learn how to use the modeling software, prepare a draft model, and compute and model runoff. Key aspects of the model include subdividing the area into sub-basins representing different land uses like residential and cultivated areas, inputting precipitation data and metrological models, using the SCS curve number loss model to compute losses, and running a simulation to output results.
This document discusses the sustainable management of water resources. It notes that river basins integrate economic, social, and environmental systems across political boundaries, so water management decisions should reflect this integrative nature. When systems are not managed sustainably, such as in the Aral Sea region where unsustainable irrigation practices depleted the sea, severe environmental, health, and economic problems can result. Achieving sustainable water resources management requires taking a basin-scale, multidisciplinary approach that considers impacts across different levels and balances current and future needs.
This document summarizes the concept of river basin management on a global scale and in India. It discusses how several countries have established River Basin Organizations to facilitate integrated planning and management of water resources within hydrological boundaries. In the US, the Tennessee Valley Authority pioneered this approach. In the UK, regional water authorities successfully manage resources across multiple uses in each river basin. Similar basin-scale management models exist in other countries like Australia, France and India. The document advocates adopting a holistic basin approach in India to address water-related issues in a sustainable manner.
Presentation made at a Webinar Program on 11th June 2024 for World Environment Day organized jointly by Organization of Environment & Children Rights Preservation (OECRP), and Ace Property & Business Consultants (Pvt.) Ltd (APB)
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
This document summarizes a presentation given at the International Water Conference in Sri Lanka on sustainable water management in tank cascade systems. Some key points:
- Tank cascade systems are a traditional Sri Lankan method of water resources management that store, convey, and utilize water across interconnected tanks and streams. This helps mitigate droughts and floods.
- The Village Tank Cascade System was declared a Globally Important Agricultural Heritage System by the UN's FAO for its sustainable practices.
- Challenges include high amounts of water lost to the sea each year, lack of coordination between water agencies, and ignoring traditional management systems.
- Tank cascades provide multiple benefits like food/water security, biodiversity,
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.
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.
19. IL2
0
50
100
150
200
250
300
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
Month
DRF
mm
Annual DRF = 1,600
DL2a
0
50
100
150
200
250
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
Month
DRF
m
m
Annual DRF = 1300