关键词: 长江上游水库群, 联合蓄水, 三峡水库, 溪洛渡水库, 向家坝水库

Abstract: The water storage period of the upstream reservoirs on Yangtze River is a period when the middle and lower reaches require the most concentrated water supply, and the water storage dispatching is the most important link to realize comprehensive utilization of reservoirs. In order to coordinate flood control, ecology, water supply, power generation and other water demands, this paper divides the water storage reservoirs in the upper reaches of the Yangtze River into three types according to their flood control responsibilities in flood season, i.e., the reservoir only undertaking flood control tasks of tributary where it located, the reservoir without flood control task for the tributary where it located but undertaking flood control tasks for the middle and lower reaches of the Yangtze River, the reservoir undertaking the dual flood control tasks of the located tributary and the middle and lower reaches of the Yangtze River. The relationship between flood control and water storage of some controlling reservoirs that undertake the dual flood control tasks is analyzed and the feasibility of water storage in advance is discussed. According to the incoming water situation in recent years, this paper analyzes the countermeasures of water storage and dispatching of the Three Gorges Reservoir under different typical conditions of special dry year, a little dry year and little wet year. In addition, some urgent task suggestions in term of the challenges in the study on the joint water storage and dispatching of reservoir groups are put forward.

Key words: reservoir group in upper reaches of Yangtze River；combined water storage, Three Gorges Reservoir, Xiluodu Reservoir, Xiangjiaba Reservoir