The present application of activable stable nuclide tracers to the study of soil erosion is discussed The rare earth element tracers are taken as an exapmle and the emphasis is placed on the application and prospect of the activable nuclide tracer method Experiment results have shown that the method has a great future in the studies on spatial and temporal distributions of soil erosion, sediment movement and deposition process as well as the sediment origin in small watershed
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