摘要：引江济汉工程作为南水北调的配套工程，将在改善汉江中下游生态环境方面发挥不可忽视的作用。基于河流水质模型及河流综合水质生态模型从水文、水质、鱼类、藻类及血吸虫病传播等方面，论述了引江济汉工程的实施对汉江中下游生态环境的影响。研究结果表明：引江济汉工程在一定程度上提高了汉江中下游的水位和流量，降低了汉江中下游水体的污染物（cod）浓度，能够在一定程度上控制“水华”现象，改善鱼类的生存空间，但同时也存在造成血吸虫病传播的潜在风险。

关键词：引江济汉；汉江中下游；生态环境

中图分类号：tv68；x52 文献标识码：a 文章编号：1672-1683（2008）01-0070-03

effect of the water transfer project from yangtze river to hanjiang river on the eco-environment of the middle and lower reaches of hanjiang river

wang ting-ting1a,zhang wan-shun1a,peng hong1b,zhu qi-yan1a,zhang bin2

(1.a.school of resource & environmental science;b.school of water resource and hydropower,wuhan university,wuhan 430072,china;2.hubei environment science academy,wuhan 430072,china)

abstract:the water transfer project from yangtze river to hanjiang river,as a matching project of the south-to-north water transfer will make a great effect on the