Thanks. Always respect someone who look for facts.
Just read this,
"三峡水库对下游的不良影响主要出现在蓄水期,每年10月特别明显。长江水位迅速降低,湖水大量向长江下泄,导致鄱阳湖区枯水期提前,到第二年4月才能缓解。"
http://news.wenxuecity.com/messages/201106/news-gb2312-1392576.html
Don't know why it's removed from the front page...