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一、流域概况浦阳江是钱塘江的一条支流,发源于浦江县大田湾,自南向北纵贯诸暨县,在萧山县闻家圳附近注入钱塘江。整个流域略呈椭圆形,干流长151公里,流域面积3430平方公里,有大陈江、开化江、五泄江、枫桥江、凤桐江等五条支流。流域内山区面积占70%,有耕地100万亩,人口140余万,农业发达,是我省粮食高产区之一。近年来工业发展较快。浙赣铁路与河道平行,在本流域内长达100.4公里;公路发达,交通方便。河流上游河床陡峻,源短流急;中下游为平原区,地势低洼,江道狭窄曲折,河床淤积,泄洪不畅,下游还受钱塘江洪水和潮汐的顶托。两岸农田和浙赣铁路,全赖堤防保护,河道两岸堤防总长达418公里,一遇台风暴雨,
First, the basin profile Puyang River is a tributary of the Qiantang River, originated in Putian County Datianwan, from south to north through Zhuji County, near Xiaoshan County Wen Jiazhen into the Qiantang River. The basin is slightly oval, the main stream is 151 kilometers long and the drainage area is 3430 square kilometers. There are five tributaries such as Dachenjiang River, Kaihua River, Wujiang River, Fengqiao River and Fengtong River. The mountainous area in the basin accounts for 70% of the total area. There are 1000000 acres of arable land, more than 1.4 million population and developed agriculture. It is one of the high-yield areas in our province. In recent years, rapid industrial development. Zhejiang-Jiangxi railway parallel to the river, in the basin up to 100.4 km; developed road and convenient transportation. River upstream steep river, the source of short stream acute; middle and lower reaches of the plains, low lying, narrow and tortuous river channel, siltation of the riverbed, poor flood discharge, but also by the Qiantang River downstream flood and tidal top care. Both sides of the farmland and Zhejiang-Jiangxi Railway, rely entirely on the protection of embankments, the embankment total length of 418 km, a typhoon storm,