Relations among reservoir storage capacity, power generation, and environmental flows
Reservoir operation has greatly altered the natural flow regime. As the conflict between protecting river ecosystem and satisfying human needs is more and more conspicuous, it is significant to seek the tradeoff between human needs and environmental needs. The previous researches mainly focus on the effects of reservoir operation rules on river ecosystem and the tradeoffs are achieved by optimizing the reservoir operation. However, few researches have viewed the role of reservoirs‘ functional parameter, such as storage capacity, on flow regime alteration. Especially, no research has explored the effects of storage capacity on power generation and river ecosystem health. In this paper, we intend to discuss how the storage capacity influences the power generation and the downstream river ecosystem. We establish a framework to maximize the mean annual power generation under two e-flow strategies, i.e., Minimum Flow Release strategy and High-flow-added Release strategy. A case study in the Xidayang reservoir, China, is used to seek the tradeoff between power generation and river ecosystem protection on the basis of the relations among the three factors. The results demonstrate that recommend that compared with the minimum e-flow provision, high flow events should be incorporated in to seek the tradeoff between power generation and river protection.
power generation river protection storage capacity e-flow high flow
C.L.Liu X.A.Yin Z.F.Yang
State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875,China
国际会议
The 3rd Biennial ISRS Symposium Achieving Healthy and Viable Rivers (ISRS)第3届国际河流大会
北京
英文
99-104
2013-08-05（万方平台首次上网日期，不代表论文的发表时间）