Human-induced Alterations in the Flow Regime of the Hanjiang River

To analysis the influeuce of river flow regime by Danjiangkou reservoir,this paper takes the Huangzhuang hydrological stations on the Hanjiang River as the case study sites,and uses the IHA method to evaluate the effect of Danjiangkou Reservoir.The results revealed that the flow regime of hanjiang have changed obviously as well as other hydrological feature values except the timing of annual extreme water conditions.The output of this paper can provide reference for the assessment of impacts of human activities on the Yangtze River ecosystem.