考虑河道内生态需水与径流情势的水库群优化调度  

Optimization of reservoir group operation considering instream ecological water demand and flow regime

作　　者：王钦 王银堂[2,3] 胡庆芳 李伶杰[2,3] 刘勇 张野 吴海燕[4] WANG Qin;WANG Yintang;HU Qingfang;LI Lingjie;LIU Yong;ZHANG Ye;WU Haiyan(School of Civil Engineering,Tianjin University,Tianjin 300350,China;The National Key Laboratory of Water Disaster Prevention,Nanjing Hydraulic Research Institute,Nanjing 210029,China;Yangtze Institute for Conservation and Development,Nanjing 210098,China;Water Conservancy Bureau of Huzhou,Huzhou 313000,China)

机构地区：[1]天津大学建筑工程学院,天津300350 [2]南京水利科学研究院水灾害防御全国重点实验室,江苏南京210029 [3]长江保护与绿色发展研究院,江苏南京210098 [4]湖州市水利局,浙江湖州313000

出　　处：《水资源保护》2023年第5期109-117,共9页Water Resources Protection

基　　金：国家重点研发计划项目(2021YFC3000104);国家自然科学基金项目(52009081);中央级公益性科研院所基本科研业务费专项资金资助项目(Y519007)。

摘　　要：针对目前水库生态调度研究重点考虑河道内生态需水量保障单一目标,忽略河道天然径流情势恢复的问题,将水文改变指标(IHA)分为两类,分别量化河道内生态需水与径流情势,定义河道内生态缺水量最小和河道天然径流情势贴合度最大双生态目标,结合河道外社会经济供水目标,构建水库群多目标优化调度模型,对我国南方某水库群开展实例研究。结果表明:基于双生态目标调度模型优选的均衡调度方案可在保障河道外主要用水对象供水保证率不低于95%的同时,使河道内目标生态需水保证率达到91.67%;构建的模型能有效兼顾社会经济和河流生态环境效益,提升河道天然径流情势贴合度,与只考虑河道内生态需水的水库群调度模型相比,更有利于河流生态保护。In view of the problem that existing studies of ecological reservoir operation focus on the single objective of instream ecological water demand and ignore the restoration of instream natural flow regime,indicators of hydrologic alteration(IHA)were divided into two categories to quantify instream ecological water demand and instream flow regime,respectively,and ecological objectives of minimum instream ecological water shortage and maximum instream fit degree of natural flow regime were determined.Furthermore,a multi-objective reservoir group operation model was constructed by combining the target of out-stream socio-economic water supply,and a case study was carried out of a reservoir group in southern China.The results demonstrate that the optimal balanced operation scheme based on the double ecological objective model not only ensures the guarantee rate of water supply to main out-stream water consumers to exceed 95%,but also makes the guarantee rate of water supply to instream ecological objective water demand to reach 91.67%.The constructed model effectively balances both socio-economic and ecological river environment benefits,while enhancing the instream fit degree of natural flow regime,and it is more conducive to river ecological protection,compared with the model that only considers instream ecological water demand.

关 键 词：河道内生态需水 径流情势 水文改变指标 水库群优化调度 南方水库群 

分 类 号：TV697.1[水利工程—水利水电工程]