Factors necessary for analysis in prediction of soil erosion in development and construction projects are as follows: original amount of soil loss and permissible soil loss, factors causing soil loss, patterns and ways of soil loss, factors of soil loss in construction projects and identification of soil loss regions, prediction period, and possible soil loss. USLE can be used in prediction of soil loss by water erosion. Therefore,model of USLE,comparison of adjacent projects, comparison of erosion intensity before and after project construction and typical case investigation and estimation are basic methods.%开发建设项目土壤流失量预测需要分析的内容有：原生土壤流失量和土壤容许流失量，土壤流失的因子、类型和方式，建设项目引发土壤流失的因素和流失分区，预测时段和可能造成的土壤流失量。在水力侵蚀流失量预测方法中，USLE模型、毗邻项目类比、项目建设前后侵蚀强度类比、典型调查推算法是基本的方法。
展开▼
