关键词: 水资源, 河流开发, 南水北调

Abstract: A total of 4 billion m3 water is to be transferred to the northern part of China from the upper reaches of Yalong, Dadu river in the first phase according to the Western Southnorth Water Transmission Project planning. The implementation of the project will influence the hydropower development of Yalong, Dadu and Jinsha rivers in the upper Yangtze River . It will reduce water discharge and power generation. The installed capacity of hydropower plants will be reduced in the near future .The influence in the upper reaches is larger than the lower stream. As well known, any major transmission project will have both positive and negative impacts, the Western southnorth Water Transmission Project is no exception. It will benefit the north water shortage area, but will influence the ecology and environment as well as hydropower in south-western area. We should pay attention to the overall planning with consideration of all concerned aspects in order to promote the economic, social development and mutual coordination between reso.

Key words: water resource, river development, South-north Water Transmission