坡沟系统侵蚀关系垂直分带性的计算机数值模拟

Computer digital simulation of ridge-hill-gully slope system erosion relation

从侵蚀形态的垂直分带性规律入手,将坡沟分为峁顶、梁坡上部、梁坡下部、坡沟4个单元,在各个单元上应用坡面产流方程、产沙方程,并提出用连续变化坐标系的方法以解决坡沟关系中的坡度不断变化的问题。该方法可模拟和预测各种不同地貌、降雨强度等条件下的坡沟侵蚀关系。图2,参9。

In this article we divided Ridge-Hill-Gully slope system into four parts: slope top, upper slope, lower slope, gully slope based on vertical dispersed erosion form.In each part the equation of the slope flow continuous equation and slope soil erosion equation are used.Successive use of varied coordinate is advanced to solve the problem that slope is in constant changing.This method can simulate and predict Ridge-Hill-Gully slope system erosion relation on different landform and rainfall conditions.