IDEAS home Printed from https://ideas.repec.org/a/eee/agiwat/v315y2025ics0378377425002719.html
   My bibliography  Save this article

Temporal variations of soil saturated hydraulic conductivity under different land use types and its impact on water balance components

Author

Listed:
  • Guo, Tianqi
  • Ji, Yalin
  • Yan, Xiaoying
  • Mady, Ahmed Yehia
  • Liu, Rui
  • Huang, Mingbin

Abstract

Soil saturated hydraulic conductivity (Ks) is one of the important soil hydraulic properties impacting the dynamic changes in soil water content and water balance components. Determining the impact of the temporal variation of Ks on these components is helpful for water resource management on the Chinese Loess Plateau. The main objective of this work was to estimate the efficiency of dual-porosity model in Hydrus-1D for simulating soil water content and water balance components with and without the temporal variation of Ks. Moreover, the effect of temporal variation of Ks on water balance components was estimated under different land use types. In this study, the double ring infiltrometers were used to measure Ks values for corn field and forestland sites from April to October 2022. The dynamic changes of soil water content and water balance components for both land use types were simulated using the calibrated and validated dual-porosity equations in the Hydrus-1D model under the two scenarios: (1) constant Ks, an average over the whole measuring period, and (2) temporally variable Ks. The results showed the temporal variation of Ks was significant for the corn field site due to tillage and not significant for the forestland site due to the lack of disturbance. The accuracy of the dual-porosity equations in the Hydrus-1D model increased by 14 % for the corn field site but by only 5 % for the forestland site when considering temporally varying Ks vs. constant Ks. In addition, the temporal variation of Ks resulted in evaporation increasing by 1.27 %, deep percolation decreasing by 14.92 %, and no obvious changes in transpiration and soil water storage of 300 cm for the corn field site, while almost consistent water balance components for the forestland site for both scenarios. These results indicated the temporal variation of Ks should be considered to improve simulations of soil water content and water balance components, particularly in farmland, which are useful for managing soil and water resources.

Suggested Citation

  • Guo, Tianqi & Ji, Yalin & Yan, Xiaoying & Mady, Ahmed Yehia & Liu, Rui & Huang, Mingbin, 2025. "Temporal variations of soil saturated hydraulic conductivity under different land use types and its impact on water balance components," Agricultural Water Management, Elsevier, vol. 315(C).
    • Handle: RePEc:eee:agiwat:v:315:y:2025:i:c:s0378377425002719
    DOI: 10.1016/j.agwat.2025.109557
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0378377425002719
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.agwat.2025.109557?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    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:eee:agiwat:v:315:y:2025:i:c:s0378377425002719. 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.

    We have no bibliographic references for this item. You can help adding them by using 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: Catherine Liu (email available below). General contact details of provider: http://www.elsevier.com/locate/agwat .

    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.