Discussion on the soil erosion monitoring method in Beijing City
北京市土壤侵蚀监测方法探讨

In order to assess quantitively soil erosion in Beijing, based on ground monitoring network onsoil and water loss, soil and water loss onitoring at location were carried out in flood season, and theevaluating method of regional soil erosion monitoring were discussed in this paper. Results showed that Beijing Soil Loss Equation was built based on USLE and a lot of monitoring data, and this model could be used as a suvey tool for Beijing soil erosion. Based on GIS technology and rainfall erosivity model, the calculation of annual soil erosion could be applied to transfer data from runoff plot to region scale.Because the soil and water conservation factor was not concluded in net method, the soil erosion modulus calculated with net method was higher than that calculated with sampling survey method. Beijing soil erosion monitoring method can be used for reference in evaluating and monitoring on soil and water loss on regional scale.