坡面植被对坡面径流和入渗的影响

STUDY ABOUT THE CONSEQUENCE FOR RUNOFF AND INFLUENT BY SLOPE' S VEGETATION

通过人工模拟降雨和自然降雨试验,本文讨论了植被对雨水的截留和分流作用,以及坡面植被对水流入渗的影响。

This article dissertates about the consequence for runoff and influent by slope's vegetation and determines the relation of vegetation coverage density with watercourse on lamina, vegetation coverage density with influent on slope, precipitation intensity with influent on slope. The outcome of study allestes that flow of water on lamina and influent on slope sensibly increases vegetation coverage density or precipitation intensity. The flow on lamina is 25-30% of all precipitation when vegetation coverage density attains 95%. Vegetation reduces slope erosion by precipitation, increases the influent, raises the content of water in soil, has effects on the keeping the soil and water on slope.