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集水区和存储水坝

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{{Language-box|english_link=Catchment and storage dams | 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=集水区和存储水坝 | indonesian_link= Coming soon | japanese_link= Coming soon }}

 

[[Image:dam icon.png|right|80px|]]

[[Image:Catchment dam.jpg|thumb|right|200px| 图尔卡纳人民在肯尼亚北部的Lokitaung河流上建造了水坝。照片由法新社Simon Maina拍摄。]]

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在天然雨水收集区，如山谷修建水坝可以提供用水。把水储存在由水坝形成的水库中，或引流到其他水库里。规划水坝时重要的参数有：年降水量和蒸发模式；集水区目前的使用和径流系数（如岩石裸露流域具有较高的径流系数，约0.9左右）；水需求量；集水区和建筑区的地质和地理状况。

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