黄河下游生态径流量计算研究

选取黄河下游地区花园口、高村、利津3个代表站的实测月径流量系列,利用逐月均频率计算法和改进的Tennant法2种历史流量计算方法分别计算了3个代表站的生态径流过程.结果表明:虽然2种计算方法原理不同,但是由逐月均频率计算法得到的适宜生态径流量大都在改进的Tenannt法所得结果的最佳或极好范围之内,只有个别月份与最佳范围的数值有一定的差值,但也位于可接受的范围内.

Computation of ecological flow in the lower reaches of Yellow River

A series of measured monthly runoff at the three hydrological stations of Huayuankou,Gaocun and Lijin in the lower reaches of Yellow River were selected.The ecological flow processes at the three representative stations were calculated with historical runoff methods: the monthly even frequency computation method and the improved Tennant method.The calculated results show that the principles of the two methods are different,but the values of ecological flows computed with the monthly even frequency computati...