Analysis of Changing the Goal of Water Supply in Dujiangyan Irrigation District of China

摘要

First this paper analyzes the reasons that the rivers in Chengdu lost their functions,advantages and disadvantages of long-distance agricultural water diversion in Dujiangyan Irrigation District.It proposes a program of reducing long-distance agricultural water diversion to the middle of Sichuan Province and improves,the water environment of Chengdu by increasing water supply.At last it suggests that the long term goal of water supply in Dujiangyan Irrigation District should primarily supply urban domestic water.