陡坡林地坡面保土作用的机理

Study on the M6chanism of Soil Conservation Effect of Forested Hillslope

在对陡坡坡面侵蚀特点理解的基础上，从物理原理出发，导出了有林地和无林地（裸露地）的侵蚀过程模型；并在人工降雨试验的基础上，对模型的适应性进行了检验。

This paper,according to the principle of physics,derived the models of soil ero-sion process of forested and unforested land(bare land) based on the deep understanding ofthe erosion characteristics on the hillslopes. The model’s adaptation ability has been exam-ined based on the experiment of artificial rainfall.The result of simulated process of soil ero-sion agrees with the observed data and the mechanism of soil conservation effect of forestedhillslope has been analysed.