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一、前言 汉江是长江的最大支流,也是湖北省境内最大的河流。多年平均径流量(碾盘山站)达517亿立方米,其流域面积达15.9万平方公里,工农业发达,其产值在全省占着举足轻重的地位。研究汉江的河性,以便因势利导寻求治理的办法是十分必要的。汉江解放前河患为害,堤防溃决。其上段自陕西省宁强县至丹江口918公里,河谷狭窄,水急滩多,属山区河流。丹江口至钟祥县为中游段,长
I. Introduction Han River is the largest tributary of the Yangtze River and also the largest river in Hubei Province. The average annual runoff (Nianpanshan Station) reached 51.7 billion cubic meters. Its catchment area reached 159,000 square kilometers and its industry and agriculture developed. Its output value occupies a pivotal position in the province. It is necessary to study the river of Han River in order to find a solution to the situation. River damage before the liberation of Han River, dike collapse. The upper section from Ningqiang County, Shaanxi Province to Danjiangkou 918 kilometers, the narrow valley, acute water beach, is a mountain river. Danjiangkou to Zhongxiang County for the middle section, long