三峡梯级水电工程生态调度准则框架研究

Research on framework of ecological operation standards of Three Gorges cascade hydropower project

在分析梯级水电工程生态调度准则内涵的基础上,综合考虑不同水文情势条件下,长江中下游社会经济和生态环境目标之间以及多种生态环境保护目标之间的相互协调原则,提出了三峡梯级水电工程生态调度准则研究框架。包括:针对生态环境的刚性需求——最小环境流量的常规生态调度准则;针对生态环境的柔性需求——特定生物的繁殖期需求以及生态环境敏感区的脆弱期需求的相机生态调度准则。研究结论将为三峡梯级水电工程生态调度运行准则提供理论支持,并为梯级枢纽生态补偿进一步研究奠定基础。

Based on analysis of the connotation of ecological operation standards of cascade hydropower projects, and with consideration of the social economic and eco - environmental objectives of middle and lower Yangtze River, also coordination of various eco - environmental protection targets, we put forward a research framework of ecological operation standards of Three Gorges cascade hydropower project as follows： for the rigid eco - environmental demands, namely the minimum environmental flow, regular operation standards are prepared; for the flexible demands of eco - environment, namely biological reproductive period of special species and vulnerable period of sensitive areas, corresponding operation standards are made; and the startup conditions and operation principles of right time compensation for four major Chinese carps and Chinese sturgeon, Dongting Lake, Poyang Lake and salinity control in estuaries. The conclusions will provide a theoretical support for ecological operation of the Three Gorges cascade hydropower project, and lay a foundation for further ecological compensation research.