新安江水库水面在正常高水位108米情况下,有580平方公里(约90万亩),蓄水量178亿立方米,平均水深34米。水库于1959年9月22日截流蓄水,建库20多年来对周围环境产生一些影响,我们1972年开始研究这个问题,也是在生产上遇到问题之后才进行的。一、建库12年从降水量减少,开始了对环境影响的调研工作 Xin’anjiang Reservoir water surface in the normal high water level of 108 meters, there are 580 square kilometers (about 900000 acres), storage 17.8 billion cubic meters, the average depth of 34 meters. Reservoir on September 22, 1959 closure of impoundment, reservoir construction for more than 20 years on the surrounding environment have some impact, we began to study this issue in 1972, but also in the production of problems encountered before. First, the reduction of precipitation in 12 years from the establishment of the reservoir started the research on environmental impact