SOTER-Based Soil Water Erosion Simulation in Hainan Island

ZHAO YUGUO; ZHANG GANLIN; GONG ZITONG

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SOTER-Based Soil Water Erosion Simulation in Hainan Island

机译：基于SOTER的海南岛土壤水蚀模拟

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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.

机译：根据通用水土流失方程（USLE）和1：200 000土壤和地形数字数据库（SOTER）数据库，估算了中国海南岛不同土地覆被土壤的实际和潜在水蚀速率。可以提取水蚀因子。整个岛屿的92.8％的当前侵蚀率低于500 t km-2 a-1。由于降雨充沛，土壤侵蚀的风险被认为很高。如果没有植被覆盖，潜在的土壤侵蚀率将非常高，该岛90.8％的土壤侵蚀率将超过2500 t km-2 a-1。通过引入相对侵蚀危害参数α，比较了岛上不同土壤区域，地形类型和岩性区域的相对侵蚀脆弱性。在低丘地区，由粉砂岩和泥岩形成的共生溶胶被确定为该岛侵蚀风险最高的土壤。

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来源
《土壤圈（英文版）》 |2003年第2期|139-146|共8页
作者
ZHAO YUGUO; ZHANG GANLIN; GONG ZITONG;
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作者单位

Institute of Soil Science, the Chinese Academy of Sciences, Nanjing 210008 China;

Institute of Soil Science, the Chinese Academy of Sciences, Nanjing 210008 China;

Institute of Soil Science, the Chinese Academy of Sciences, Nanjing 210008 China;

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收录信息中国科学引文数据库(CSCD);中国科技论文与引文数据库(CSTPCD);
原文格式 PDF
正文语种 chi
中图分类土壤学;
关键词
Hainan Island; soil erosion risk assessment; SOTER; USLE;

机译：海南岛;土壤侵蚀风险评估;SOTER;USLE;

SOTER-Based Soil Water Erosion Simulation in Hainan Island

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