soil layer thickness change process and its influencing factors in purple hilly region
and the thickness of soil loss using the established equations on the different land use types in Chongqing.The results showed:(1) The rates of surface gravel coverage before the precipitation
after 3 times precipitation
after 6 times precipitation were 1.5%
2.4%
12.2%.Surface gravel cover had the positive correlation with the accumulation of s...