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An optimization approach for sustainable release of e-flows for lake restoration and preservation: Model development and a case study of Baiyangdian Lake, China

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  • Yang, Wei
  • Yang, Zhifeng
  • Qin, Yan

Abstract

In this paper, we describe the development of a model for the sustainable release of e-flows from the regional water resource infrastructure (e.g., reservoirs, rivers with available water) for lake restoration and preservation, and use the model in a case study of Baiyangdian Lake, China. First, we define the sustainable environmental flows (e-flows), with an emphasis on the ecological importance of temporal variation in factors such as water level (depth). By analyzing historical data on the suitable range of water levels in the lake, we evaluated fluctuations using canonical correspondence analysis and frequency distribution analysis. The temporal variations required by the ecosystem of the lake were also assessed. Based on this approach, we developed an optimization model for sustainable release of e-flows. We used the adaptive genetic algorithm approach to solve the model and determine the required release of e-flows. Scenario analysis then provided a range of potential management strategies for the e-flows. The optimal results are helpful to the lake managers to establish sustainable e-flow release schemes for the lake restoration and preservation.

Suggested Citation

  • Yang, Wei & Yang, Zhifeng & Qin, Yan, 2011. "An optimization approach for sustainable release of e-flows for lake restoration and preservation: Model development and a case study of Baiyangdian Lake, China," Ecological Modelling, Elsevier, vol. 222(14), pages 2448-2455.
    • Handle: RePEc:eee:ecomod:v:222:y:2011:i:14:p:2448-2455
    DOI: 10.1016/j.ecolmodel.2010.12.020
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    References listed on IDEAS

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    1. Chen, H. & Zhao, Y.W., 2011. "Evaluating the environmental flows of China's Wolonghu wetland and land use changes using a hydrological model, a water balance model, and remote sensing," Ecological Modelling, Elsevier, vol. 222(2), pages 253-260.
    2. T. Sun & Z. Yang & B. Cui, 2008. "Critical Environmental Flows to Support Integrated Ecological Objectives for the Yellow River Estuary, China," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 22(8), pages 973-989, August.
    3. Yang, Wei, 2011. "A multi-objective optimization approach to allocate environmental flows to the artificially restored wetlands of China's Yellow River Delta," Ecological Modelling, Elsevier, vol. 222(2), pages 261-267.
    4. Yin, X.A. & Yang, Z.F., 2011. "Development of a coupled reservoir operation and water diversion model: Balancing human and environmental flow requirements," Ecological Modelling, Elsevier, vol. 222(2), pages 224-231.
    5. Parolo, Gilberto & Ferrarini, Alessandro & Rossi, Graziano, 2009. "Optimization of tourism impacts within protected areas by means of genetic algorithms," Ecological Modelling, Elsevier, vol. 220(8), pages 1138-1147.
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    Cited by:

    1. Xu, Zhihao & Yin, Xinan & Yang, Zhifeng & Cai, Yanpeng & Sun, Tao, 2016. "New model to assessing nutrient assimilative capacity in plant-dominated lakes: Considering ecological effects of hydrological changes," Ecological Modelling, Elsevier, vol. 332(C), pages 94-102.

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