中文摘要：

对2005-2007年间春季三峡水库香溪河支流库湾的水动力及总磷（TP），总氮（TN）和叶绿素A（chl—a）等生态因子的时空分布进行了数值模拟，并将模拟结果与同期实测的chl—a浓度进行了对比分析，表明库湾chl—a浓度与上游来流量的相关关系明显强于与香溪河河口水位的相关关系，据此推断利用三峡水库的小幅水位波动（10-20cm／d）对支流库湾进行生态调度的效果将是有限的，而利用香溪河上游的小型水利水电工程对香溪河库湾进行水动力调度与调控，则可望取得更有效的生态改善效果．

英文摘要：

Hydrodynamic and eutrophication model were developed and employed to research the distribution of velocity and eco-factors such as TP,TN,chl-a in Xiangxi tributary of Three Gorges Project （TGP）. Velocity and chl-a distribution in both time and special domain were compared and analyzed. The results show that the relationship between chl-a and upstream discharge is much stronger than that between chl-a and reservoir water level. It proves that small-scale hydraulic projects ,which locate upstream of the tributary will play a more important role than the effect of eco-operation than TGP reservoir.