IDEAS home Printed from https://ideas.repec.org/a/gam/jsusta/v12y2020i7p2842-d340771.html
   My bibliography  Save this article

A Study on the Cause of Layered Seawater Intrusion in the Daqing River Estuary of Liaodong Bay, China

Author

Listed:
  • Shumei Zhu

    (School of Earth Sciences and Engineering, Hohai University, Nanjing 211100, China)

  • Zhifang Zhou

    (School of Earth Sciences and Engineering, Hohai University, Nanjing 211100, China)

  • Qiaona Guo

    (School of Earth Sciences and Engineering, Hohai University, Nanjing 211100, China)

  • Jun Ma

    (School of Earth Sciences and Engineering, Hohai University, Nanjing 211100, China)

Abstract

Groundwater over-pumping in estuary cities leads to a series of groundwater environmental problems that seriously restricts economic development. On the basis of field investigation and long-term monitoring data analysis, a three-dimensional numerical model was built in the estuary of the Daqing River in Liaodong Bay, China. The Quaternary overburden can be generalized into five layers according to particle composition and parameters in the vertical direction. There are many scattered irrigation wells pumping in the second layer, and three water source areas mainly pumping groundwater in the fourth layer. Long-term over-pumping in multi-layered aquifers causes onshore layered seawater intrusion. The laws of layered intrusion under the layered pumping were calculated and analyzed with SEAWAT-2000, and the sensitivity was analyzed with the Sobol method. Results showed that the intrusion area had an obvious layered law. Layered pumping directly affected the layered intrusion area, as different permeability, tide and barrage further affected it. The prediction study showed that the cone of depression recovered after the pumping-limit of water source areas, and the intrusion area started to retreat in the fourth layer. At that time, the pumping quantity of irrigation wells became the main reason for the increase of the intrusion area. If the water source areas are used to bear part of the irrigation demand, so as to reduce the pressure of pumping in the second layer, the overall intrusion area can be reduced by about 0.23 km 2 under the same pumping quantity.

Suggested Citation

  • Shumei Zhu & Zhifang Zhou & Qiaona Guo & Jun Ma, 2020. "A Study on the Cause of Layered Seawater Intrusion in the Daqing River Estuary of Liaodong Bay, China," Sustainability, MDPI, vol. 12(7), pages 1-22, April.
    • Handle: RePEc:gam:jsusta:v:12:y:2020:i:7:p:2842-:d:340771
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/2071-1050/12/7/2842/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/2071-1050/12/7/2842/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Jun Ma & Zhifang Zhou & Qiaona Guo & Shumei Zhu & Yunfeng Dai & Qi Shen, 2019. "Spatial Characterization of Seawater Intrusion in a Coastal Aquifer of Northeast Liaodong Bay, China," Sustainability, MDPI, vol. 11(24), pages 1-17, December.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Muhammad Hasan & Yanjun Shang & Mohamed Metwaly & Weijun Jin & Majid Khan & Qiang Gao, 2020. "Assessment of Groundwater Resources in Coastal Areas of Pakistan for Sustainable Water Quality Management Using Joint Geophysical and Geochemical Approach: A Case Study," Sustainability, MDPI, vol. 12(22), pages 1-22, November.

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Asaad M. Armanuos & Nadhir Al-Ansari & Zaher Mundher Yaseen, 2020. "Assessing the Effectiveness of Using Recharge Wells for Controlling the Saltwater Intrusion in Unconfined Coastal Aquifers with Sloping Beds: Numerical Study," Sustainability, MDPI, vol. 12(7), pages 1-26, March.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jsusta:v:12:y:2020:i:7:p:2842-:d:340771. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.