Dr. P.B.Dharmasena

sri lanka sinhala environment agriculture ecosystem water resources management climate change irrigation traditional knowledge poverty tank cascades indigenous knowledge climate participatory approach research soil rural development water management water quality research selection criteria ecosystems ancient practices drought ecology watershed climate smart agriculture land degradation flood carbon sequestration ecosystem services soil conservation sustainability water productivity biodiversity agro-ecology rainwater harvesting green revolution archaeology sustainable development planning productivity green house gases ghg emission agro-forestry tank cascade systems ecosystem restoration cascade ecology land use human health history disaster water resources policy water pollution heritage english indigenous spiritual poverty development weather cropping system major irrigation governance landscape development project soil erosion agriculture slm agriculture rainwater desirable farming ancient agriculture river basin soil series major soil types resilience adaptability livestock management paddy farming home garden sustainable land management climate mapping agro-ecosytem system efficiency natural disasters urban planning history of agriculture food forest gardens unresolved mysteries stargate land use planning water resources planning ecosystems landslide cyclone rituals culture training india engineering civilization database environmental impact assessment health waste water watyer pollution resources population community project colonization human interaction energy flow nutrient cycles food web food chain archaeological evidence cropping pattern water balance proposal writing budget data methodology objective literature agronomic practices certified seed tank-village home based employment plant nurseries groundwater