摘要
选取汾河干流1965~2003年天然月均径流资料,分别采用逐月最小生态径流计算法和逐月频率年内展布计算法,计算汾河干流汾河水库、兰村、二坝3个水文测站的生态径流量。计算结果表明,逐月最小生态径流计算法和逐月频率年内展布计算法计算得到的生态径流量,均符合Tennant法评价标准中生态功能目标的要求。与逐月最小生态径流计算法相比,逐月频率年内展布计算法计算确定的生态径流量更有利于河流生态健康,更加贴近天然河流年内丰枯变化状况。
Based on the natural monthly runoff data of Fenhe River mainstream from 1965 to 2003,the monthly minimum ecological runoff calculation method and monthly frequency calculation method were respectively used to calculate the ecological runoff of the three hydrological stations,namely Fenhe Reservoir,Lan Country and Erba.The results show that the ecological runoff obtained by the above two methods meets the Tennant's requirement of ecological function.The latter method is more beneficial to river ecological health and closer to the natural river's high and low flow change within the year.
出处
《水电能源科学》
北大核心
2017年第9期25-27,21,共4页
Water Resources and Power
基金
水利部综合事业局项目(201436)
关键词
汾河干流
逐月频率
TENNANT法
生态径流
main stream of Fenhe River
monthly frequency
Tennant method
ecological runoff
