半干旱半湿润流域水文模型应用与比较

Six hydrological models were applied to Dage, Daiying, Fuping and Dongwan watersheds in semi-arid and semi-humid regions in China. The result shows that in some watersheds under infiltration-excess runoff mechanism such as Dage, none of these models can simulate the rainfall-runoff relationships successfully, the accuracy of mixed runoff models is little higher than that of stored-full runoff models; in some mixed runoff watersheds such as Daiying and Fuping, the accuracy of mixed runoff models is no better than that of stored-full runoff models; while in some semi-humid regions such as Dongwan watershed, the accuracy of stored-full runoff models increases whereas that of mixed runoff models decreases. TOPMODEL and SAC model can't achieve satisfactory results in these regions.