Based on the need of soil erosion rare earth element (REE ) tracer method, the rill erosion spatial characteristic was researched on the field plot. At first, we give three parameter to show the rill erosion intensity and its shape, that is rill horizon density (μ) 、 rill average depth (H) and rill intensity (EI),then we calculated the all parameters. Finally, we researched the relationship between the related erosion yield with the slope length. The results showed that the serious position of rill erosion ...
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