摘要
通过对以往专题研究成果的介绍，概述兴建三峡水库对长江流域降水的影响，介绍研究方法及主要研究成果，并利用已有的部分研究成果分析计算了三峡建库后流城年降水的增量。主要研究结果是：长江流域上空的水汽主要是由流域外部输入的；兴建三峡水库后，流域及三峡区间的蒸发量只增加了千分之几；长江流域９５％的年降水量是由外部输入的水汽形成的；三峡建库对流域年降水量的影响是极微小的。
Effect of impoundment of Three Gorses reservoir on the precipitation in Yangtze basin is summarized,and research method and main results are presented. Analysis and calculation of the increase in annual precipitation in this basin after impoundment of Three Gorges reservoir have been done by using achieved research results. The main conclusions are: the vapour over Yangtze basin is mainly imported from the outside of the basin; the amount of evaporation in Yangtze basin and Three Gorges zone will increase only by several thousandths; as ninety-five per-cent of the annual precipitation is made of the vapour imported from outside; Effect of Three Gorges reservoir impoundment on the annual precipitation in Yangtze basin will be insignificant.
出处
《人民长江》
北大核心
1994年第7期32-34,共3页
Yangtze River
关键词
降水
降水量
分布
长江流域
Precipitation Three Gorges project Yangtze basin
