A reservoir operating method for riverine ecosystem protection, reservoir sedimentation control and water supply
A reservoir operating method for riverine ecosystem protection, reservoir sedimentation control and water supply
复制标题
一种保护河流生态系统、控制水库淤积和供水的水库调度方法
DOI：
10.1016/j.jhydrol.2014.02.037
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发表时间：
2014-05
影响因子：
6.4
通讯作者：
G. Mathias Kondolf
中科院分区：
文献类型：
--
作者：
Xin-An Yin;Zhi-Feng Yang;Geoffrey E. Petts;G. Mathias Kondolf
保护河流生态系统需要维持水坝下游的自然水流和沉积物状况。在水库管理计划中，这一要求应与沉积控制和人类供水相结合。然而，传统的生态友好型水库调度方法通常只考虑自然流态。本文旨在开发一种水库调度方法，既考虑了天然水流和泥沙状况，又优化了供水分配。本文采用库水位（RWL）、库容量占沙率（SOR）和库容量变化率（RCSOR）作为冲沙式泥沙管理政策的三个触发因素。针对冲沙年和非冲沙年设计了两组不同的水库运行规则曲线，并利用RWL、SOR和RCSOR三种触发器将“静态”的水库运行规则曲线转换为“动态”的水库运行规则曲线。以王快水库为例，验证了该方法的有效性。这表明，该方法可以提高水库运营商的灵活性，以平衡水库管理，供水管理和下游河流生态系统的水沙需求。
Riverine ecosystem protection requires the maintenance of natural flow and sediment regimes downstream from dams. In reservoir management schedules this requirement should be integrated with sedimentation control and human water supply. However, traditional eco-friendly reservoir operating methods have usually only considered the natural flow regime. This paper seeks to develop a reservoir operating method that accounts for both the natural flow and sediment regimes as well as optimizing the water supply allocations. Herein, reservoir water level (RWL), sediment-occupied ratio of reservoir volume (SOR) and rate of change of SOR (RCSOR) are adopted as three triggers of a drawdown-flushing-based sediment management policy. Two different groups of reservoir operating rule curves (RORCs) are designed for sediment-flushing and non-sediment-flushing years, and the three triggers, RWL, SOR and RCSOR, are used to change the “static” RORCs to “dynamic” ones. The approach is applied to the Wangkuai Reservoir, China to test its effectiveness. This shows that the approach can improve the flexibility of reservoir operators to balance the reservoir management, water supply management and the flow and sediment needs of the downstream riverine ecosystem.
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