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Rational Allocation of Water Resources in the Arid Area of Northwestern China Based on Numerical Simulations

Author

Listed:
  • Lifang Wang

    (Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang 050061, China
    Key Laboratory of Groundwater Sciences and Engineering, Ministry of Natural Resources, Shijiazhuang 050061, China)

  • Zhenlong Nie

    (Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang 050061, China
    Key Laboratory of Groundwater Sciences and Engineering, Ministry of Natural Resources, Shijiazhuang 050061, China)

  • Min Liu

    (Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang 050061, China
    Key Laboratory of Groundwater Sciences and Engineering, Ministry of Natural Resources, Shijiazhuang 050061, China)

  • Le Cao

    (Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang 050061, China
    Key Laboratory of Groundwater Sciences and Engineering, Ministry of Natural Resources, Shijiazhuang 050061, China)

  • Pucheng Zhu

    (Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang 050061, China
    Key Laboratory of Groundwater Sciences and Engineering, Ministry of Natural Resources, Shijiazhuang 050061, China)

  • Qinlong Yuan

    (Chongqing Jiangshan Hydropower Construction Engineering Survey and Design Consulting Co., Ltd., Chongqing 400000, China)

Abstract

Adding a series of surface-water transfer projects still cannot solve the current water shortages in the arid area of northwestern China. Selecting a rational allocation plan for the water resources is the key to coordinating water use for the national economy and ecological environment. In this study, taking the Wuwei Basin as the study area, long-term data of source-sink terms from 2007 to 2018 were analyzed. Following the calibration and validation of the numerical simulation model of the groundwater system, the data was highly fitted. Based on this model, the groundwater system balance, water level variations, and suitable ecological water level area in 2050 under four water resource allocation plans were compared. Under plan 4, the groundwater resources change from an average decrease of 7656.4 × 10 4 m 3 ·yr −1 from 2007 to 2018, to an increase of 4624.6 × 10 4 m 3 ·yr −1 in 2050, which means the groundwater systems are almost in a positive balance state. Compared with 2018, the water level with small groundwater depth drops by 2.2–5.7 m, while that with large groundwater depths steadily rises by 2.7–8.6 m. In addition, it can maintain the 9 km 2 natural oasis wetland area and the 116 km 2 well-growing natural vegetation area, which can effectively promote the benign evolution and efficient, balanced sustainable development of the regional water resources, economy, and ecological environment.

Suggested Citation

  • Lifang Wang & Zhenlong Nie & Min Liu & Le Cao & Pucheng Zhu & Qinlong Yuan, 2022. "Rational Allocation of Water Resources in the Arid Area of Northwestern China Based on Numerical Simulations," Sustainability, MDPI, vol. 15(1), pages 1-17, December.
    • Handle: RePEc:gam:jsusta:v:15:y:2022:i:1:p:55-:d:1009534
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    References listed on IDEAS

    as
    1. Giordano, Mark & Villholth, Karen, 2007. "The agricultural groundwater revolution: opportunities and threats to development," IWMI Books, Reports H040039, International Water Management Institute.
    2. Jinjin Gu & Mo Li & Ping Guo & Guohe Huang, 2016. "Risk Assessment for Ecological Planning of Arid Inland River Basins Under Hydrological and Management Uncertainties," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 30(4), pages 1415-1431, March.
    3. Zhanqi Wang & Jun Yang & Xiangzheng Deng & Xi Lan, 2015. "Optimal Water Resources Allocation under the Constraint of Land Use in the Heihe River Basin of China," Sustainability, MDPI, vol. 7(2), pages 1-18, February.
    4. Jinjin Gu & Mo Li & Ping Guo & Guohe Huang, 2016. "Risk Assessment for Ecological Planning of Arid Inland River Basins Under Hydrological and Management Uncertainties," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 30(4), pages 1415-1431, March.
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