一、基本情况新安江是錢塘江上游的主要支流之一,流域面积11850平方公里,發源于皖南的黄山和率山,从上溪口到河口共长約260公里,支流有横江、丰乐水、富資水、揚之水、东溪港、遂安江和寿昌溪等。自屯溪至建德落差約100公尺,平均水面比降約万分之5.8,水力资源極为丰富。新安江及其临近流域,自1930年起設有水文站網,在1942年至1946年五年期間,受抗日战爭影响, First, the basic situation Xin’anjiang is one of the main tributaries of the upper reaches of the Qiantang River, the basin area of ​​11,850 square kilometers, originated in Huangshan in Anhui Province and the rate of Hill, from the upper stream to the estuary a total length of about 260 kilometers, tributaries of Hengjiang, Fengle water , Rich water, Yang water, Dongxi Hong Kong, Sui An River and Shouchang Creek and so on. Since the fall of Tunxi to Jiande about 100 meters, the average surface water ratio drops about 5.8% 5.8 extremely rich in water resources. Xin’anjiang River and its adjacent watershed, since 1930 hydrological network has been set up in 1942 to 1946 during the five years by the war of resistance against Japan,