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Advances in Soil Water Dynamics Research

A special issue of Water (ISSN 2073-4441). This special issue belongs to the section "Soil and Water".

Deadline for manuscript submissions: 20 September 2025 | Viewed by 705

Special Issue Editors


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Guest Editor
College of Water Resources and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
Interests: soil water; vadose zone; freeze–thaw period; soil evaporation; groundwater; soil salt content

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Guest Editor Assistant
College of Water Resources and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
Interests: soil water; freeze–thaw period; soil water–heat–salt; distributed SHAW model; soil evaporation

Special Issue Information

Dear Colleagues,

Soil water dynamics address fluid movement in porous media and can lay a cognitive foundation for the efficient use of agricultural water resources, the ecological construction of river basins, and the optimization of soil water resources. However, the current understanding of the mechanism behind these dynamics is not uniform, and there are shortcomings in the accuracy of the model, the scope of application, and the utilization of technology. With rapid developments in numerical simulation technology, numerical simulation software based on solving the soil water movement process has been fully integrated into the study of water transport at different spatio-temporal scales. In order to further understand the transport process in soil water, this Special Issue will publish contributions focusing on the following:

  • advanced methods for field and laboratory experiments into soil water migration and evaporation;
  • influence of factors such as climate change on soil water dynamics;
  • the application of numerical models and new methods, such as remote sensing technology.

We believe that this Special Issue will further advance the scholarship in the field of soil water dynamics and enrich currently available data and findings in the field of unsaturated-zone hydrodynamics.

Prof. Dr. Junfeng Chen
Guest Editor

Dr. Jing Xue
Guest Editor Assistant

Manuscript Submission Information

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Keywords

  • soil water
  • climate change
  • hydrothermal transport
  • model
  • remote sensing

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Published Papers (1 paper)

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Research

17 pages, 2940 KiB  
Article
Variations in Soil Salt Ions and Salinization Degree in Shallow Groundwater Areas During the Freeze–Thaw Period
by Chao Han, Qiang Meng, Junfeng Chen, Lihong Cui, Jing Xue, Hongwu Liu and Rong Yan
Water 2025, 17(15), 2234; https://doi.org/10.3390/w17152234 (registering DOI) - 26 Jul 2025
Abstract
In shallow groundwater areas, the freeze–thaw process can easily exacerbate soil salinization. The variations and migrations of Na+, K+, Ca2+, Mg2+, Cl, SO42−, and HCO3 at the depth [...] Read more.
In shallow groundwater areas, the freeze–thaw process can easily exacerbate soil salinization. The variations and migrations of Na+, K+, Ca2+, Mg2+, Cl, SO42−, and HCO3 at the depth of 0–100 cm under shallow groundwater depth (2.63–2.87 m) during the freeze–thaw period were analyzed. And a multi-index comprehensive evaluation method based on factor analysis was employed to investigate the soil salinization degree. The results show that K+, Mg2+, and HCO3 exhibited surface enrichment during the freeze–thaw period, while Na+, Cl, and SO42− accumulated in the frozen layer during the freezing stage. However, there is no surface enrichment of Ca2+. During the freezing stage, Mg2+ and Cl exhibited the strongest migration capabilities among cations and anions, respectively. During the thawing stage, K+ and HCO3 were the cation and anion with the highest ionic migration capabilities, respectively. Total salinity (TS), Cl, SO42−, HCO3, Na+, K+, Mg2+, and residual sodium carbonate (RSC) were identified as the dominant factors influencing the salinization degree during the freeze–thaw period. During the freezing stage, soil salt ions predominantly migrated from the unfrozen to the frozen layer, and the salinization degree in the frozen layer increased with the development of the frozen layer. In the thawing stage, soil salt ions migrated upward from the thawing front, and the salinization degree at the depth of 0–30 cm increased. This study provides insights for the prevention and control of soil salinization in arid regions. Full article
(This article belongs to the Special Issue Advances in Soil Water Dynamics Research)
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