基于下游需水量过程线的水库生态流量调度研究——以新疆五一水库为例

Study on reservoir ecological flow operation based on downstream water demand process line:case of Wuyi Reservoir of Xinjiang Autonomous Region

干旱区域河流的开发利用率较高,生态流量“放不下、放不稳”。为协调生态、生产、生活等用水需求,需要合理确定水利工程的调度过程。以新疆五一水库为研究对象,通过推算其下游艾比湖湿地保护区的生态需水量与五一水库下泄水量间的对应关系,换算得到生态敏感目标对应的水库的下泄水量需求,进而确定五一水库的分月下泄水量过程线,并计算了目标可达性。结果表明:合理调度可以实现五一水库生活、生产供水量目标和河流生态目标。研究成果可为干旱区域河流的工程生态流量调度提供技术支持。

The development and utilization rate of rivers in arid regions is relatively high,and the ecological flow is difficult to control.In order to coordinate the water demand for ecology,production and life,it is necessary to reasonably determine the scheduling process of water conservancy projects.Taking the Wuyi Reservoir in Xinjiang Autonomous Region as the research object,we analyzed the corresponding relationship between the ecological water demand of Aibi Lake Wetland Reserve and the discharge water volume of the Wuyi Reservoir,and obtained the monthly discharge demand of the reservoir corresponding to the ecologically sensitive target by conversion,so as to determine the monthly discharge process line of the Wuyi Reservoir,and then calculated the target accessibility.The results show that the water supply target of Wuyi Reservoir and the river ecological target can be achieved by rational operation.The research results can provide technical support for engineering ecological flow regulation of rivers in arid regions.