It depends only on erodibility of the surface and tends to decrease as erodibility increases . 它仅取决于表面侵蚀程度，并且随侵蚀程度的增加而趋于减小。
2.
Surface erosion along the road is about twice as high as the maximum rates reported from the most degraded lands in southeast asia 沿着公路的表面侵蚀率是已报道的东南亚地区退化最为严重的土地最大侵蚀率的两倍。
