【摘要】 介绍了三种水土保持减水减沙效益计算方法．通过分析比较和实际应用，认为模型法是合理可行的计算方法．所建模型能够模拟大中流域长系列水流泥沙过程，且有较好的移植性．本文方法应用于大理河流域水土保持减水减沙效益计算，效果良好．更多还原

【Abstract】 Three calculation methods of the benefits of water and soil conservation are introduced in this paper.Comparisons of the three methods and application of measured data indicate that the model method is a reasonable and feasible calculation method.The model can be used to simulate the long series flow and sediment processes in large and medium river basins,and has a good transplantability.The method has been applied to calculate the benefits of water and sediment reduction in Da Lihe basin and the result is satisfactry.更多还原