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堆石透水坝

353 bytes added, 22:01, 3 September 2015

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{{Language-box|english_link= Water Portal / Rainwater Harvesting / Groundwater recharge / Permeable rock 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=堆石透水坝 | indonesian_link= Coming soon | japanese_link= Coming soon }}

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

[[Image:PermeableRockDam2.JPG|thumb|right|200px|流水中的堆石透水坝。图片来源：[http://il.water.usgs.gov/asian_carp/images/IM_Canal/3-Illinois%20and%20Michigan%20Canal%20Flow%20Barrier_recent.JPG USGS.]]]

__NOTOC__ <small-title />

'''堆石透水坝'''由低矮的长形石墙构成，有数个等高且地势较高的位置，长度贯穿整座谷底。这样的构造能使水道侧部形成径流。这种洪水收集方法能分散并保留洪水径流，以促进庄稼生长，同时控制沟蚀。堆石透水坝可被视作为一种“梯田干谷”，虽然梯田干谷通常用来描述更干旱地区中水道内的结构。

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