SOTER-Based Soil Water Erosion Simulation in Hainan Island

查看全文 作　　者：ZHAO YUGUO, ZHANG GANLIN and GONG ZITONGInstitute of Soil Science, the Chinese Academy of Sciences, Nanjing 210008 (China)

出　　处：《Pedosphere》索引2003年第13卷第2期,共8页

基　　金：Project supported by the United Nations Development Program (UNDP, No. CPR/96/:05) ;the Na- tional Key Basic Research Support Foundation (NKBRSF) of China (No. G1999011809). 摘　　要：The actual and potential water erosion rates of soils with different land covers in Hainan Island, China,were estimated based on the universal soil loss equation (USLE) and a 1:200 000 Soils and Terrain Digital Database (SOTER) database, from which soil water erosion factors could be extracted. 92.8% of the whole island had a current erosion rate of lower than 500 t km-2 a-1. Soil erosion risk was considered to be high because of its abundant rainfall. Without vegetation cover, the potential soil erosion rate would be extremely high and 90.8% of the island would have a soil erosion rate higher than 2 500 t km-2 a-1. Relative erosion vulnerability of different soil zones, landform types, and lithological regions of the island was compared by introducing a relative erosion hazard parameter α. Cambosols developed from siltstone and mudstone in low hill regions were pinpointed as soils with the highest erosion risk in the island. 关键词：海南岛土壤侵蚀仿真 SOTER 水土流失

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SOTER-Based Soil Water Erosion Simulation in Hainan Island

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