中文摘要：

流域下垫面的变化影响着流域的水文水沙特性,不同尺度及流域下垫面的变化特性也会对窟野河输沙率及径流量产生不同程度的影响,通过对已有数据和研究资料的分析比对,从1980-2013年以窟野河三个不同尺度的流域作为研究对象,研究在不同尺度情况下下垫面变化对水沙演变影响,用灰色分析法计算影响其变化的驱动因素的关联度。

英文摘要：

The underlying surface has an influence on the characteristics of runoff and sediment characteristics in river basins. And the features of the different scales underlying surfaces have various effects on the runoff and sediment discharge in the Kuye River. By analyzing the concerned data from 1980 to 2013, this paper took 3 different scales watersheds in the Kuye River Basin as the objects to study the influence of the uderlying surface change on the runoff and sediment evolution in different scales, and calculate the correlation degree of the driving factors by using grey re-lational analysis.