不同坡形坡面侵蚀产沙过程的影响研究

通过室内模拟降雨试验分析出不同坡形坡面侵蚀产沙过程,研究结果表明:同坡度、同雨强条件下,水流含沙量随坡形的变化具有明显的规律性,整个降雨过程中,凹形坡的水流含沙量最大,凸形坡的其次,直线形坡的最小。随着降雨历时的延长和雨强、坡度的增大,坡形对侵蚀产沙的影响还会越来越大;并且在同坡形条件下,水流含沙量随雨强、坡度的增加明显增大。

Study on Soil Erosion Characters in Different Slopes

This paper analyzed the slope erosion and sediment yield process of different slope through the indoor rainfall simulation test.The results show that:the sediment showed an obvious regularity under the same slope,and the rainfall intensity conditions.During the whole rainfall,the sediment content of concave form slope is the biggest,the next is the convex form slope and the linear form slope.With the extension of rainfall intensity and slope gradient,the impact of slope shape on erosion and sediment yield w...