摘要
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.
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 computation method almost match the optimum or extremely good ranges of those calculated with the improved Tennant method. Only for a few monthly values is there a discrepancy with the optimum ones, and those are acceptable.
出处
《河海大学学报（自然科学版）》
CAS
CSCD
北大核心
2009年第2期153-157,共5页
Journal of Hohai University(Natural Sciences)
基金
国家自然科学基金(50379007
30490235)
关键词
生态径流
逐月均频率计算法
改进的Tennant法
黄河下游地区
ecological flow
monthly even frequency computation method
improved Tennant method
lower reaches of Yellow River
