Predicting the Water Availability Under Land Use Scenarios and Climatic Change for Micro-hydro Power Generation in Sri Lanka Using PRA Tools
International Journal of Science and Research (IJSR)

International Journal of Science and Research (IJSR)
www.ijsr.net | Open Access | Fully Refereed | Peer Reviewed International Journal

ISSN: 2319-7064



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Research Paper | Agriculture | Sri Lanka | Volume 7 Issue 12, December 2018

Predicting the Water Availability Under Land Use Scenarios and Climatic Change for Micro-hydro Power Generation in Sri Lanka Using PRA Tools

Gamini Hitinayake

The objective of this study was to study the impact of land use and climatic change on the water availability for off-grid rural micro-hydro power generation. Five micro hydro sites from five districts were selected and land use features were identified using PRA tools namely, transact diagrams, land use maps and direct observations. Rainfall data of the sites were collected to characterize the sites. Present study clearly indicates that land use factors have to be considered when estimating water yield for micro hydro development. The difference between rainfall and water yield is high especially when catchments are covered with tree (taller) vegetation. Lowering of rainfall due to climatic change is going to have differential impacts on the actual water yield of the catchments depending upon the nature of its land use. Introducing water saving land use may be an option to increase the water yield. However, land use at a particular place is determined by many factors, which often have little or no relevance to hydrology of the areas.

Keywords: Land use, water yield, climate change, micro-hydro power generation, PRA tools

Edition: Volume 7 Issue 12, December 2018

Pages: 913 - 920

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How to Cite this Article?

Gamini Hitinayake, "Predicting the Water Availability Under Land Use Scenarios and Climatic Change for Micro-hydro Power Generation in Sri Lanka Using PRA Tools", International Journal of Science and Research (IJSR), https://www.ijsr.net/search_index_results_paperid.php?id=ART20193519, Volume 7 Issue 12, December 2018, 913 - 920

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