湫水河流域水沙变化及成因分析

On Change Situation of Water and Sediment in Qiushui River Catchment and Their Formation Cause

文中利用水文资料统计分析法(简称水文法)对湫水河流域降雨径流、降雨产沙关系,水沙变化的成因及现状进行分析,确定出了因降水变化及水利水保工程的实施等人类活动对河流水沙的影响程度。

Using hydrologic data statistic analysis method （hydrologic method）, this paper analyzes the relationship between the precipitation and runoff, between the precipitation and sediment, the formation cause and present situation of water-sediment change in Qiushui River catchment, determines the influence degree formed by the change of precipitation and human-being＇s action such as construction of hydraulic project and soil-water conservation project.