Optimizing the operation of the Qingshitan Reservoir in the Lijiang River for multiple human interests and quasi-natural flow maintenance

作     者：Qiuwen Chen Duan Chen Ruiguang Han Ruonan Li Jinfeng Ma Koen Blanckaert 

作者机构：Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China Three Gorges UniversityYichang 443002China Changjiang River Scientific Research InstituteWuhan 430010China Laboratory of Hydraulic ConstructionsSchool of ArchitectureCivil and Environment EngineeringLausanneSwitzerland Haihe Water Conservancy CommissionTianjin 300170China 

出 版 物：《Journal of Environmental Sciences》 (环境科学学报（英文版）)

年 卷 期：2012年第24卷第11期

页      面：1923-1928页

核心收录：

学科分类：083001[工学-环境科学] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 081504[工学-水利水电工程] 08[工学] 0815[工学-水利工程] 

基　　金：supported by the National Natural Science Foundation of China (No.50920105907) the National Basic Research Program (973) of (No.2010CB429004) the100 Talent Program of Chinese Academy of Sciences (No.A1049) the Chutian Scholarship (No.KJ2010B002) 

主　　题：reservoir operation optimization model flow alteration trade-off solution 

摘      要：For reservoir operation, maintaining a quasi-natural flow regime can benefit river ecosystems, but may sacrifice human interests. This study took the Qingshitan Reservoir in the Lijiang River as a case, and developed an optimization model to explore a trade-off solution between social-economic interests and nature flow maintenance on a monthly base. The objective function considered irrigation, cruise navigation and water supply aspects. An index of flow alteration degree was proposed to measure the difference between the regulated discharge and the natural flow. The index was then used as an additional constraint in the model besides the conventional constraints on reservoir safety. During model solving, different criteria were applied to the index, representing various degrees of alteration of the natural flow regime in the river. Through the model, a relationship between social-economic interests and flow alteration degree was established. Finally, a trade-off solution of the reservoir operation was defined that led to a favorable social-economic benefit at an acceptable alteration of the natural flow.