| The conflict between the ecological flow control and other reservoir benefit is regarded as one of biggest obstacles to develop river ecological flow security. Balancing their interests is great significative to take river health into reservoirs practice operation. The paper selected river
ecological water requirement process as ecological control target of reservoirs operation, and compared it with other object benefits depending on their significance in different operation time. An order or rule of multi-objective optimization was put forward for building a cascade reservoirs simulation model on Wenyu River. In addition, combining with the supply and demand status and some possible measures on the different level years, it given a series of scenarios based on ecological flow requirements to conduct the simulating operation of cascade reservoirs model. According to the simulating computation under different requirements, many scheduling schemes and its corresponding statistical indicators were got, such as water supply reliability, power generation and ecological assurance. Comparing these indicators from these schemes, we can know the benefit impact on cascade reservoirs operation after considering ecological flow control. |