Dr. P.B.Dharmasena

sri lanka environment sinhala agriculture climate change ecosystem water resources management irrigation traditional knowledge climate poverty tank cascades indigenous knowledge soil participatory approach research rural development water management water quality english research selection criteria climate smart agriculture drought ecosystems ancient practices land degradation flood ecology watershed ghg emission carbon sequestration ecosystem services soil conservation sustainability water productivity biodiversity sustainable land management agro-ecology rainwater harvesting tank cascade systems ecosystem restoration green revolution heritage archaeology sustainable development planning productivity green house gases natural disasters agro-forestry cascade ecology land use human health history disaster water resources policy water pollution indigenous spiritual poverty development weather cropping system major irrigation governance landscape development project soil erosion agriculture slm agriculture rainwater natural ecosystem agro-ecosystem biomimicry food security climate change adaptation climate change mitigation climate variability carbon net zero desirable farming ancient agriculture river basin soil series major soil types resilience adaptability livestock management paddy farming home garden climate mapping agro-ecosytem system efficiency 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