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Restoration of ancient Ruhunu Rata tank system to meet the future water demand and livelihood developments as an adaptable strategy to overcome the impacts of climate change

NRC Grant: 12-104

Dr. T.P. Dodampe Gamage
Faculty of Fisheries and Marine Sciences & Technology
University of Ruhuna
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Area of Research: Natural Resources & Water Management
Status: Ongoing

 

Objectives

  1. a) Ruhuna is an area where water is a limiting resource, particularly during dry seasons. Recent changes of the climate have significantly shifted the two major rainy seasons and the intensity of the rain has increased considerably. Therefore, the first objective of the research is to establish the current status of water availability in the region throughout a year. b) In the past, water storage was made in this region through man-made tank cascades, which were sufficient to fulfill the water needs during dry periods satisfying all consumption needs. This abounded system will be studied to search for the ancient technology used for these tank systems and efforts will be made to identify the failures for sustaining them. c) The ancient irrigation knowledge will be closely studied in order to supplement the initial activities of proposed Indigenous Knowledge Centre of the University of Ruhuna, which has been proposed under the internationalization project. d) Further, digital maps and GIS applications will be used to understand the present situation so as to propose a livelihood development plan for the area, paying particular attention to the request that has been made by the District Secretariat of Hambantota (please refer the annexed letters from District Secretariat Hambantota). e) The total water storage capacity available at present and the future water need for the implementation of the proposed livelihood development plan will be calculated. A mathematical model developed will be used to simulate water releasing capacity according to the activities of the catchments (demand calculations). f) Agriculture and aquaculture potential in order to support livelihood activities of the region, including food security will be assessed under the study. Management plans (such as drought preparedness plan and livelihood development plan) will be formulated outlining strategies to overcome the difficulties during dry spells.

 

 

You are here: Home Grants - 2012 Restoration of ancient Ruhunu Rata tank system to meet the future water demand and livelihood developments as an adaptable strategy to overcome the impacts of climate change