新安江日降雨径流模型在安徽省沿江江南地区应用

The Application of the Xin’an River Daily Rainfall-Runoff Model in the South of the Yangtze River Area along the Yangtze River, Anhui Province

当集水面积相差较大时，采用水文比拟法计算设计径流，计算成果可能误差较大，采用此法计算新建水库设计径流时，可能会带来水库设计水位的偏差。通过建立皖东南宣城市广德县粮长门水库新安江日降雨径流模型，计算粮长门水库设计径流，并移用到皖西南安庆市破罡湖流域进行验证，得到较为满意的效果。

When the difference of catchment areas is large, the errors of calculation result may be compara- tively large using the hydrologic analogy method to calculate design runoff. Using this method to calculate design runoff of a new reservoir may bring deviation of the reservoir＇s design water level. Through the establishment of the Xin＇an River daily rainfall-runoff model of the Liang Changmen Reservoir in Guangde, Xuancheng, southeast of Anhui, runoff of the Liang Changmen Reservoir was calculated; the model was verified by applying it to the Pogang Lake Basin in Anqing, south- west of Anhui, and satisfactory results were got.