高泉沟流域产流产沙的降水特征因子分析

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高泉沟流域属于黄土丘陵沟壑区。运用灰色关联与相关系数分析法,分析影响该流域坡面产流产沙的降水特征因子。结果表明对黄土丘陵沟壑区产生径流贡献最大的因子是降雨量;对土壤侵蚀量贡献最大的因子是降雨量半小时雨强复合因子。因此,降雨量的多少是影响本区产流产沙最关键的因素。 Gaoquugou valley belongs to loess hilly and gully area. By using the method of gray correlation and correlation coefficient analysis, the precipitation characteristic factors affecting the runoff and sediment production on the slope are analyzed. The results show that the largest contributor to runoff in the loess hill and gully region is rainfall, and the factor that contributes most to soil erosion is the composite factor of rainfall intensity over half an hour. Therefore, the amount of rainfall is the most crucial factor affecting the runoff and sediment yield in this area.
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