文章推荐了确定侵蚀、输移量的方法，指出坡耕地侵蚀过程中的＂填洼＂作用是引起输移比变化的原因，并分析了其变化规律。通过不同坡长的输移变化试验，发现单宽最小径流率ｑｍｉｎ和最大含沙量ρｍａｘ可判别其侵蚀输移变化，并划分出＂侵蚀─输移区＂、＂侵蚀─堆积─输移区＂和＂侵蚀─输移挠动区＂。对小集水区回归出输移比与坡长、面积的幂函数关系式。 The paper recommends a method to determine the amount of erosion and transport. The paper points out that the “filling depression” in the erosion process of sloping arable land is the reason of the change of transmission ratio, and the variation rule is analyzed. According to the experiments of transport and displacement of different slope lengths, it is found that the minimum runoff rate per unit width qmin and the maximum sediment concentration ρmax can be used to judge the variation of erosion and transport, and the “erosion-transport zone”, “erosion-deposition-transport zone ”And“ Erosion-Transport Flexing Zone. ” For small catchment areas, the power function of the ratio of transport to slope length and area is returned.