IDEAS home Printed from https://ideas.repec.org/a/gam/jijerp/v17y2020i19p7219-d423048.html
   My bibliography  Save this article

Identification and Estimation of Solute Storage and Release in Karst Water Systems, South China

Author

Listed:
  • Liang Zhang

    (School of Environmental Studies, China University of Geosciences, Wuhan 430074, China)

  • Mingming Luo

    (School of Environmental Studies, China University of Geosciences, Wuhan 430074, China
    Key Laboratory of Karst Dynamics, MNR/GZAR, Institute of Karst Geology, Chinese Academy of Geological Sciences, Guilin 541004, China)

  • Zhihua Chen

    (School of Environmental Studies, China University of Geosciences, Wuhan 430074, China)

Abstract

Solute storage and release in groundwater are key processes in solute transport for groundwater remediation and protection. In karst areas where concentrated recharge conditions exist, pollution incidents can easily occur in springs that are hydraulically connected to densely inhabited karst depressions. The intrinsic heterogeneity common in karst media makes modeling solute transport very difficult with great uncertainty. Meanwhile, it is noteworthy that solute storage and release within subsurface conduits and fissures exhibit strong controlling function on pollutant attenuation during underground floods. Consequently, in this paper, we identified and estimated the solute storage and release processes in karst water systems under concentrated recharge conditions. The methodology uses the advection–dispersion method and field tracer tests to characterize solute transport in different flow paths. Two solute transport pathways were established (i.e., linear pathway (direct transport through karst conduits) and dynamic pathway (flow through fissures)). Advection–dispersion equations were used to fit the breakthrough curves in conduit flow, while the volume of solute storage in fissures were calculated by segmenting the best fitting curves from the total breakthrough curves. The results show that, greater recharge flow or stronger dynamic conditions leads to lower solute storage rate, with the storage rate values less than 10% at high water level conditions. In addition, longer residence time was recorded for solute exchange between conduits and fissures at the low water level condition, thereby contributing to a higher solute storage rate of 26% in the dynamic pathway.

Suggested Citation

  • Liang Zhang & Mingming Luo & Zhihua Chen, 2020. "Identification and Estimation of Solute Storage and Release in Karst Water Systems, South China," IJERPH, MDPI, vol. 17(19), pages 1-13, October.
    • Handle: RePEc:gam:jijerp:v:17:y:2020:i:19:p:7219-:d:423048
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1660-4601/17/19/7219/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1660-4601/17/19/7219/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Hugo Henrique Cardoso de Salis & Adriana Monteiro da Costa & João Herbert Moreira Vianna & Marysol Azeneth Schuler & Annika Künne & Luís Filipe Sanches Fernandes & Fernando António Leal Pacheco, 2019. "Hydrologic Modeling for Sustainable Water Resources Management in Urbanized Karst Areas," IJERPH, MDPI, vol. 16(14), pages 1-19, July.
    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. Wei Chang & Junwei Wan & Jiahua Tan & Zongxing Wang & Cong Jiang & Kun Huang, 2021. "Responses of Spring Discharge to Different Rainfall Events for Single-Conduit Karst Aquifers in Western Hunan Province, China," IJERPH, MDPI, vol. 18(11), pages 1-17, May.

    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. Amit Kumar Basukala & Livia Rasche, 2022. "Model-Based Yield Gap Assessment in Nepal’s Diverse Agricultural Landscape," Land, MDPI, vol. 11(8), pages 1-25, August.
    2. Marianno de Olivera, Laís Caroline & de Mendonça, Gislaine Costa & Araújo Costa, Renata Cristina & Leite de Camargo, Regina Aparecida & Fernandes, Luís Filipe Sanches & Pacheco, Fernando António Leal , 2023. "Impacts of urban sprawl in the Administrative Region of Ribeirão Preto (Brazil) and measures to restore improved landscapes," Land Use Policy, Elsevier, vol. 124(C).
    3. Kai Song & Guangxu Yang & Fei Wang & Jian Liu & Dan Liu, 2020. "Application of Geophysical and Hydrogeochemical Methods to the Protection of Drinking Groundwater in Karst Regions," IJERPH, MDPI, vol. 17(10), pages 1-22, May.

    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:jijerp:v:17:y:2020:i:19:p:7219-:d:423048. 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.