基于多尺度影响因子的水土保持措施布局研究

Study on Layout of Soil and Water Conservation Measures Based on Multi-Scale Impact Factors

通过分析,水土保持能力与地形地貌和第四系发育情况有关、与地表植被及用于水土保持的地表构筑物有关、与区域地表径流和地下径流的流量有关,在此基础上构建水土保持能力因子并进行加权累加。在实证分析过程中,通过对区域内河流单位水体载沙量和总流量载沙量数据进行水土流失的限定发现,通过该模式设定的因子与实际测量数据之间存在统计学相关性。研究结果证明,多尺度水土保持影响因子与实际测量值的吻合度较高,该加权模式具有显著的统计学意义。

A model of soil and water conservation measures layout based on multi-scale influence factors was studied.Through analysis,the capacity of soil and water conservation is related to topography and quaternary development,surface vegetation and surface structures used for soil and water conservation,and regional surface runoff and underground runoff flow.On this basis,soil and water conservation capacity factors are constructed and weighted.In the process of empirical analysis,it is found that there is a statistical correlation between the factors set by the model and the actual measured data by limiting the sediment load per unit water body and the total discharge sediment load data in the region.It is proved that the multi-scale soil and water conservation impact factors are in good agreement with the actual measured values,and the weighted model has significant statistical significance.