三峡水库运行对荆江三口水文情势变异程度分析  

Analysis of Hydrological Regime Variation in Three Outlets of Jingjiang River after the Impoundment of Three Gorges Reservoir

作　　者：代稳[1,2] 吕殿青[2] 王金凤[1] 仝双梅[1] DAI Wen LU Dianqing WANG Jinfeng TONG Shuangmei(College of Tourism and Historical Culture, Liupanshui Normal University, Liupanshui 553004, Guizhou, China College of Resources and Environment Science, Hunan Normal University, Hunan 410081, Changsha, China)

机构地区：[1]六盘水师范学院旅游与历史文化学院,贵州六盘水553004 [2]湖南师范大学资源与环境科学学院,湖南长沙410081

出　　处：《水力发电》2017年第8期26-30,共5页Water Power

基　　金：国家自然科学基金资助项目(41571100);贵州省科学技术基金项目(黔科合LH字[2015]7632号);贵州省教育厅自然科学研究项目(黔教合KY字[2015]445号)

摘　　要：根据三峡水库蓄水运行时间,运用变化范围法(RVA)和整体改变度对荆江三口水文情势变异程度进行评价。结果表明,三峡水库运行对荆江三口流域水文情势产生一定影响,其水文综合改变度为62.07%,属于中度改变,主要影响表现在1月~5月、7月、8月、10月月均流量、年均1、3、7、30、90 d最小流量、低流量的谷底数、低流量平均持续时间等方面。三峡水库运行对荆江三口河流的削峰填谷作用明显。According to the storage operation time of Three Gorges Reservoir, the RVA method and the total degree of change are used to evaluate the variation degree of hydrological regime of three outlets in Jingjiang River. The results show that the operation of Three Gorges Reservoir has certain impacts on Jingjiang three hydrological regimes, and its hydrological comprehensive change degree is 62.07%. It is shown that the impacts include monthly average flow rate in January to May, July, August and October, annual average minimum flow rate of 1, 3, 7, 30 and 90 d, and the valley bottom number and duration time of low flow. The operation of Three Gorges Reservoir has an obvious flood peak reducing effect on Jingjiang three outlets.

关 键 词：水文情势 RVA 局部改变度 荆江三口 三峡水库 

分 类 号：TV213.4[水利工程—水文学及水资源]