水电站工程水土流失预测存在的问题及对策

Study on Soil Loss Prediction about Hydroelectric Power Station

开发建设项目水土流失量预测是水土保持方案编制的依据和关键,针对水电站工程水土流失预测过程中出现的种种问题,如预测分区的混乱,预测面积不准确,预测时段划分不正确等,提出了相应的对策。给出了水土流失预测项目区划分图,对预测过程中流失系数的算法进行了分析,作者建议从侵蚀因子、选择类比法来或查阅相关水文资料确定流失系数。

The soil loss capacity prediction in the development and construction project is the basis and the key for compiling the water and soil conservation project. According to some problems during prediction course, such as the confused partition, the unaccurate area and uncorrected time section, the paper discuss these general problems of soil loss prediction in hydroelectric power station engineering, and put forward some feasible suggestion and countermeasures. The paper gave out the area division figure of soil erosion for calculation, and analyze the computational method about loss coefficient during erosion. The writer suggested to calculate the coefficient from erosion factor, select analogical project and consult related hydrology materials.