Using 7Be to Trace Temporal Variation of Interrill and Rill Erosion on Slopes

Understanding the processes of erosion-transport-deposition of sediments is necessary to develop more effective soil erosion prediction models. In this study, Beryllium-7 (7Be) was used as a tracer to describe the dynamics of soil erosion during a simulated rainfall event on outdoor cultivated plots. The quantitative results of interrill and rill erosion on slopes are discussed in this paper. And the calculated results using 7Be tracer are in good agreement with the measured ones. Therefore, 7Be tracer could accurately quantify the processes of erosion on the cultivated slope.