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Soil Hydraulic Properties Characterization for Improving Water Availability: Second Edition

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Earth Sciences".

Deadline for manuscript submissions: 30 August 2026 | Viewed by 1040

Special Issue Editors


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Guest Editor
Department of Agricultural, Food and Forest Sciences, University of Palermo, Viale delle Scienze, 90128 Palermo, Italy
Interests: soil hydrology; water repellency; soil physics
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
Department of Agricultural, Food and Forest Sciences, University of Palermo, Viale delle Scienze, 90128 Palermo, Italy
Interests: modelling soil water flow and solute transport; soil hydraulic properties; infiltration
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
Department of Agricultural, Food and Forest Sciences, University of Palermo, Viale delle Scienze, 90128 Palermo, Italy
Interests: soil physics; infiltration; soil hydraulic properties; vadose zone hydrology
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Knowledge of the hydraulic properties of soil is crucial for simulating hydrological processes at different spatial and temporal scales. Due to the ongoing threat of climate change, the availability of water is becoming seriously threatened in arid and semi-arid regions, and an enhanced understanding of the vadose zone hydrology and its implications for numerous soil functions will become crucial in the coming years, particularly when aiming to optimize water resources in agricultural, forest, and urban environments.

In this Special Issue, we focus on experimental and theoretical challenges and state-of-the-art approaches to the characterization, measurement, and modelling of the hydraulic properties of soil. To fulfill the scope of Applied Sciences, studies should aim to demonstrate how the hydraulic properties of soil are affected by soil management and external inputs (fertilization, pollutants, low-quality irrigation water, etc.) and how they affect hydrological processes (runoff, erosion, groundwater recharge, etc.), with a specific focus on water availability in the context of climate change.

The scope of this Special Issue includes, but is not limited to, the following topics:

  • Field and laboratory infiltration measurements;
  • Plant water availability for precision agriculture;
  • Inverse methods for soil hydraulic characterization;
  • Development of PTFs for soil hydraulic characterization at different scales;
  • Use of geo-physical techniques for modeling soil structure and water flow;
  • Modeling of preferential flows;
  • Remote sensing application to soil hydraulic characterization;
  • Interaction between soil properties and ecosystems water use efficiency;
  • Effects of soil use and management on physical quality and hydraulic properties;
  • Interactions between water quality and vadose zone hydrology;
  • Use of organic amendments for soil restoration;
  • Effects of biogeochemical processes on soil hydraulic properties;
  • Influence of soil hydraulic properties on water saving in water-limited environments;
  • Urban soils and technosoils characterization for green infrastructures.

Dr. Vincenzo Alagna
Dr. Dario Autovino
Prof. Dr. Massimo Iovino
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 250 words) can be sent to the Editorial Office for assessment.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Applied Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • soil hydraulic properties
  • inverse modeling
  • PTF
  • soil physical quality
  • plant water availability
  • water use efficiency
  • vadose zone hydrology
  • urban soils
  • water saving

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Related Special Issue

Published Papers (2 papers)

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Research

18 pages, 3946 KB  
Article
Estimation and Validation of Soil Hydraulic Parameters in the Kubuqi Sandy Land Incorporating Soil Pore Space Characteristics
by Wei Qin, Kai Sun and Lixin Wang
Appl. Sci. 2026, 16(7), 3416; https://doi.org/10.3390/app16073416 - 1 Apr 2026
Viewed by 325
Abstract
Accurate estimation of soil hydraulic parameters under drip irrigation is essential for improving water flow simulations and optimizing irrigation management; however, field measurements in aeolian sandy soils are often expensive and time-consuming. This study focused on typical aeolian sandy soils in the Kubuqi [...] Read more.
Accurate estimation of soil hydraulic parameters under drip irrigation is essential for improving water flow simulations and optimizing irrigation management; however, field measurements in aeolian sandy soils are often expensive and time-consuming. This study focused on typical aeolian sandy soils in the Kubuqi Desert. Field drip irrigation experiments were conducted to obtain temporal variations in soil water content and wetting front advancement, which were used to inversely estimate and calibrate hydraulic parameters for different soil layers. Soil pore space characteristics were quantified using nitrogen adsorption, and their relationships with hydraulic parameters were analyzed through correlation and redundancy analyses. On this basis, the combined effects of particle-size distribution and pore space structure on parameter prediction were evaluated, and soil water movement under drip irrigation was simulated and validated using HYDRUS-2D/3D. The results indicated pronounced spatial variability in soil hydraulic parameters. Residual water content, saturated hydraulic conductivity, and pore-size distribution index were significantly correlated with specific surface area, total pore volume, mean pore diameter, micropore volume fraction, and pore fractal dimension. Compared with approaches based solely on particle-size distribution, incorporating pore space structure effectively reduced the prediction errors of both hydraulic parameters and wetting front migration, thereby improving simulation accuracy. These findings demonstrate that integrating particle-size distribution and pore space characteristics provides a feasible approach for the rapid estimation of hydraulic parameters and the analysis of water movement in aeolian sandy soils under drip irrigation. Full article
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16 pages, 3101 KB  
Article
Soil Moisture Responses to Long-Term Nanobubble Water Applications: Exploring Potential Mechanisms
by Arvydas Povilaitis and Yeganeh Arablousabet
Appl. Sci. 2026, 16(6), 2883; https://doi.org/10.3390/app16062883 - 17 Mar 2026
Viewed by 329
Abstract
This study examined the long-term effects of nanobubble-saturated water (NBSW) on silty clay loam and sandy loam soils, with an emphasis on soil moisture dynamics, water balance, compaction, and electrical conductivity (EC) over a 1.5-year experimental period. NBSW did not induce a significant [...] Read more.
This study examined the long-term effects of nanobubble-saturated water (NBSW) on silty clay loam and sandy loam soils, with an emphasis on soil moisture dynamics, water balance, compaction, and electrical conductivity (EC) over a 1.5-year experimental period. NBSW did not induce a significant long-term increase in soil moisture storage compared to conventional watering, though there were short-term changes. In both soils, NBSW caused higher cumulative evaporation and reduced leaching in water partitioning. Compaction increased over time, and this response was stronger under NBSW, with a greater increase in silty clay loam than in sandy loam. EC remained higher in both soils under NBSW treatment, with a greater temporal increase in sandy loam and permanently higher levels in silty clay loam, indicating more dissolved-ion retention in the soil profile and less leaching. Compaction and EC were normalized to the maximum measured soil moisture. This study reveals that NBSW has a greater long-term influence on water-loss partitioning and root-zone solute dynamics than it does on long-term soil water storage. Full article
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