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Transcript
What happens to the water? Evaluating water availability and use in Borana, Ethiopia SPACE talk – Monday February 7, 2011 – by Ralph Lasage Water is a key resource in the Borana zone in Southern Ethiopia. Climate change is expected to change water availability in the future. This study uses the STREAM model to evaluate changes in discharge under different climate change scenario’s. These changes due to climate change are compared to modeled changes in discharge due to vegetation changes over the past 20 years. A possible adaptation to changes in water availability is the construction of sand dams. The impact of different construction strategies on river discharge are evaluated using STREAM. Next to the modeling exercise, a field survey was carried out to gather data on water use by rural households. This enabled a first comparison between households near a sand dam and households further away of water sources. This study produces information on current water use and gives insight in potential future changes in water availability, due to climate change and management strategies. When and where Date: Time: Place: Contact SPACE talks in 2011 Monday February 7, 2011 12.00 – 12.45 hrs. Room C543 IVM, W&N building, VU Campus (entrance via De Boelelaan 1085) Corry Zoll: T 020-5989505 E [email protected] 7 Mar Sanne van Asselen Sinking Deltas 4 Apr Fritz Hellman Spicosa 9 May Mathilde Molendijk Aarde en Economie 6 Jun Peter Verburg Visions of land use in Europe IVM INSTITUTE FOR ENVIRONMENTAL STUDIES VU University Amsterdam De Boelelaan 1085 (visiting address) De Boelelaan 1087 (postal address) 1081 HV Amsterdam t +31-20-5989 555 f +31-20-5989 553 e [email protected] i http://www.ivm.vu.nl