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基于SOTER数据库,利用USLE方程对海南岛土壤的现实和潜在侵蚀量进行了定量估算,结果表明海南岛92.82%的面积土壤侵蚀量在500t/km2·a以下,侵蚀主要发生在中坡度坡地和高坡度丘陵区;而由于其所处的特殊气候区,潜在侵蚀量巨大,中度以上侵蚀面积达到全岛的90.67%。酸性常湿雏形土、铝质湿润雏形土和铁质湿润雏形土相对侵蚀程度大,粉砂岩、泥岩地区最容易发生侵蚀。
Based on the SOTER database, the USLE equation was used to estimate the actual and potential erosion of the soil in Hainan Island. The results showed that 92.82% of the soil erosion in Hainan Island was below 500t / km2 · a. The erosion occurred mainly in the mid-slope slope and high Slope hilly area; and due to its special climate zone, the potential erosion is huge, moderate erosion area above the island reached 90.67%. Acidic wet prototype soil, aluminum wet prototype soil and iron wet prototype soil relative erosion degree, siltstone, mudstone area most prone to erosion.