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Natural ground catchment and Open water reservoir

420 bytes added, 01:05, 1 December 2016
→‎Size the pond
{{Language-box|english_link= Natural ground catchment and Open water reservoir | french_link= Coming soon | spanish_link= Coming soon | hindi_link= Coming soon | malayalam_link= Coming soon | tamil_link= Coming soon | korean_link= Coming soon | chinese_link=天然地面集水區與開闊水域之水庫 | indonesian_link= Coming soon | japanese_link= Coming soon }}__NOTOC__ <small-title />
[[Image:ground ctch icon.png|right|80px]]
[[Image:LinedPond.JPG|thumb|right|200px|Natural pond with lining, Ethiopia. Photo: [http://www.ideorg.org/GetInvolved/Media.aspx iDE.]]]
====Size the pond====
[[Image:SmallNaturalPond.JPG|thumb|right|200px|Small, natural pond for rainwater harvesting.<br> Photo: [http://ruralradiowww.ctacomminit.intcom/RainwaterHarvesting.htm community-radio-africa/content/cta-rural-radio-packs CTA Rural Radio Packs.]]]
Pond size (and therefore dam height) can be decided according to water demand, evaporation & seepage losses, length of critical period and average stream flow according to the following:
* Determine water requirement (R litres/day)
* [http://www.smallreservoirs.org/ Small reservoirs tool kit] Edited by Marc Andreini, Tonya Schuetz, and Larry Harrington. Small Reservoirs Project. Topics include: intervention planning, storage and hydrology, ecosystems and human health, institutions and economics.
* [http://ruralradiowww.cta.int/RainwaterHarvestingen/article/2014-07-07/rural-radio-resource-programme-packs-a-punch.htm html CTA: Rural Radio Packs]. Interviews in mp3 and transcript format about rainwater harvesting techniques.
* [http://www.ideorg.org/OurTechnologies/WaterStorageSystems.aspx IDE]. Provides materials like plastic liners and drums for various rainwater harvesting methods. Serves Africa, Asia, and Latin America.
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