Study on vertical Distribution of Soil Erosion on Loess slope

The vertical variability is one of basic components of soil erosion on loess slope. The experiments on a erosion plot have firstly revealed that the vertical distribution pattern of sediment yield have three types: the continued-increasing type, the increase-decreasing type and the wave type. We have primarily developed a method estimating ration of rill erosion according to redistribution of the rare earth element on loess slope.