摘要
以宜昌水文站为例,针对不同时期河流生态系统对水文条件的需求,基于熵权、生态适宜性理论,构建了长江干流宜昌站近50年逐日适时划分水文指标模型,分析了流量、时间、频率、变化率等主要水文指数对河流生态流量的影响。结果表明,该方法可行。
According to the ecosystem requirement of in Yichang gauge station nearly fifty years, the hydrology ical optimal theory. And then the influence of flow, time, The results show that the proposed method is feasible. hydrology conditions in different phase and the daily flow data indices model is established by using entropy weight and ecologfrequency and change rate on river ecological flow are analyzed.
出处
《水电能源科学》
北大核心
2011年第6期27-29,共3页
Water Resources and Power
关键词
熵权
水文指数
生态流量
水文情势
entropy weight
hydrologic index
ecological flow
hydrologic regime
