Optimized reservoir operation to balance human and riverine ecosystem needs: model development, and a case study for the Tanghe reservoir, Tang river basin, China
Optimized reservoir operation to balance human and riverine ecosystem needs: model development, and a case study for the Tanghe reservoir, Tang river basin, China
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DOI：
10.1002/hyp.7498
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发表时间：
2009-11
影响因子：
3.2
通讯作者：
X. Yin;Zhifeng Yang;Wei Yang;Yanwei Zhao;H. Chen
中科院分区：
文献类型：
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作者：
X. Yin;Zhifeng Yang;Wei Yang;Yanwei Zhao;H. Chen
水库对河流生态系统产生了许多负面影响。为了平衡人类和生态系统的需求，提出了一种将水库运行规则曲线与调节的最小放水量政策相结合的水库运行方法，以满足河流生态系统的环境流量要求。基于水库与取水口的相对位置，我们考虑了三种情景：满足人类需求（包括工业、家庭和农业）的水直接从(1)水库中抽取；(2)水库和下游河道；(3)下游河道。与传统方法相比，该方法具有两个优点：一是可用于寻找考虑环境流量需求的最优水库运行规律曲线，有利于水资源的可持续利用；其次，它避免了传统方法的一个问题，传统方法将最小环境流量要求规定为水库调节的最小环境流量释放，隐含地降低了河流生态系统的优先级。相反，我们的方法确定了维持环境流量的最佳调节最小水量，同时更有效地平衡人类和生态系统的需求。为了证明该模型的实际应用，我们以中国唐河流域的唐河水库为例进行了上述三种情景的运行研究。结果表明，该方法可以帮助水库管理者满足人类和环境的双重要求。版权所有©2009 John Wiley & Sons， Ltd
Reservoirs impose many negative impacts on riverine ecosystems. To balance human and ecosystem needs, we propose a reservoir operation method that combines reservoir operating rule curves with the regulated minimum water release policy to meet the environmental flow requirements of riverine ecosystems. Based on the relative positions of the reservoir and the water intakes, we consider three scenarios: water used for human needs (including industrial, domestic and agricultural) is directly withdrawn from (1) the reservoir; (2) both reservoirs and downstream river channels and (3) downstream river. The proposed method offers two advantages over traditional methods: First, it can be applied to finding the optimal reservoir operating rule curves with the consideration of environmental flow requirement, which is beneficial to the sustainable water uses. Second, it avoids a problem with traditional approaches, which prescribe the minimum environmental flow requirements as the regulated minimum environmental flow releases from reservoirs, implicitly giving lower priority to the riverine ecosystem. Our method instead determines the optimal regulated minimum releases of water to sustain environmental flows while more effectively balancing human and ecosystem needs. To demonstrate practical use of the model, we present a case study for operation of the Tanghe reservoir in China's Tang river basin for the three above‐mentioned scenarios. The results demonstrate that this approach will help the reservoir's managers satisfy both human and environmental requirements. Copyright © 2009 John Wiley & Sons, Ltd.