The special lecture delivered on World Water Day at Kothmale International Training Institute of Irrigation And Water Management (KITI-IWM) on 22.03.2019
This is the 6th lesson of the course - Water Resources Planning and Development taught to Students of BA (General) at the Faculty of Social Sciences and Humanities, Rajarata University of Sri Lanka, Mihintale
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 8th lesson of the course - Water Resources Development and Planning taught to students of BA (General) at the Faculty of Social Sciences and Humanities, Rajarata University of Sri Lanka, Mihintale
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
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
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.
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 is the 6th lesson of the course - Water Resources Planning and Development taught to Students of BA (General) at the Faculty of Social Sciences and Humanities, Rajarata University of Sri Lanka, Mihintale
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 8th lesson of the course - Water Resources Development and Planning taught to students of BA (General) at the Faculty of Social Sciences and Humanities, Rajarata University of Sri Lanka, Mihintale
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
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
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.
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.)
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.
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
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.
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
40. VARIATION OF RAINFALL AND IRRIGATION USE
WITH CULTIVATION TIME
0
200
400
600
800
1000
1200
OCTOBER NOVEMBER DECEMBER JANUARY
MONTH
WATER
USE
(MM)
Irrigation requirement
Rainfall use
51. Sri Lanka has a recorded history since 543 B.C. Although records are not
found of civilizations before 543 B.C., historical facts reveal that a
civilization existed even long before from Rawana Times.
It's believed that an Expelled prince Vijaya to be the first Aryan King of
Sri Lanka. Since then many Kings Ruled Sri Lanka Till 1815.