窟野河水文特性分析

Analysis on hydrological characteristic of Kuyehe River

根据黄河中游较大支流窟野河流域各水文站历年水文资料统计,通过对流域概况、降水、径流、泥沙以及洪水特性的分析,得出主要结论:窟野河降水量、径流量、输沙量年际变化大,年内分配不均,窟野河暴雨洪水特点是该流域发生大洪水机遇较多,洪水过程陡涨陡落,历时短,含沙量大,泥沙颗粒组。

This paper analyzes basin general situation, rainfall, runoff, sediment, and flood characteristic according to statistic of the annual hydrologic data of each hydrologic station in Kuyehe river, a bigger tributary in middle yellow river. The main results are more change form year to year and non-mean allocation in inter annual for rainfall, runoff and sediment transportation. The rainstorm flood characteristic of Kuyehe River is more frequency in this basin, flood process rising and falling suddenly, short flood time, higher sediment and grit silt particles.