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Natural rock catchment and Open water reservoir

4 bytes added, 02:09, 28 May 2015

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[[Image:ground ctch icon.png|right|80px]]

[[Image:BareRockCatchment.jpg|thumb|right|200px|Natural rock catchment on Sullivan Rock, USA. <br> Photo: [http://bibbulmuntrack1000.blogspot.com/2010/09/5th-training-324-km-5-days-walk.html Paul Madden.]]]

[[Image:RockCatchment.jpg|thumb|right|200px|Rock catchment project in Kitui, Kenya. <br> Photo: [http://www.friendsofkitui.com/rockcatchWater_Issues.htm html Friends of Kitui.]]]

Rock catchment dams are developed from a rock outcrop to catch and concentrate rainwater runoff into a storage structure for productive use. In arid and semi-arid lands with large rock outcrops, a lot of runoff is generated after rains. Through development of rock surface into a catchment, the runoff can be harvested and stored for domestic and livestock use to alleviate water shortages.

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