Article
Soil Science
S. Jace Kaminski, Behzad Ghanbarian, Stacey Kulesza, Bo V. Iversen, Andres Patrignani
Summary: Understanding the effect of sample volume on soil properties is important for hydrogeology, soil physics, and environmental engineering. This study uses percolation theory to estimate the scale dependency of hydraulic conductivity in soils. The researchers applied classification methods and conducted experiments on soil samples from four Danish sites to determine the relationship between pore size distribution and hydraulic conductivity. The theoretical estimates aligned well with experimental measurements, showing that the theory provides accurate estimations in certain soil textures and classes.
Article
Agronomy
Vilim Filipovic, Jasmina Defterdarovic, Vedran Krevh, Lana Filipovic, Gabrijel Ondrasek, Filip Kranjcec, Ivan Magdic, Vedran Rubinic, Sanja Stipicevic, Ivan Mustac, Marina Bubalo Kovacic, Hailong He, Amir Haghverdi, Horst H. Gerke
Summary: This study aimed to identify the factors controlling soil water dynamics in erosion-affected hillslope vineyard soils. The parameterization of soil hydraulic properties was found to be crucial in capturing the response of erosion-affected soil systems.
Article
Environmental Sciences
Yunquan Wang, Rui Ma, Gaofeng Zhu
Summary: This study introduces a novel method to predict hydraulic conductivity curves (HCCs) fully from the soil water retention curve (SWRC) without requiring additional parameters. Testing with soil samples shows that this method significantly improves the prediction of HCC compared to traditional methods.
WATER RESOURCES RESEARCH
(2022)
Article
Agriculture, Multidisciplinary
John J. Drewry, Stephen J. McNeill, Sam Carrick, Ian H. Lynn, Andre Eger, John Payne, Graeme Rogers, Stephen M. Thomas
Summary: Improved understanding of temporal changes in soil physical properties is essential for accurate modelling of soil-water dynamics. This study found significant temporal trends in bulk density, water retention capacity, and hydraulic conductivity for irrigated wheat under different tillage systems. However, daily rainfall, irrigation, and evapotranspiration were not generally significant in explaining these temporal trends, suggesting the need for additional temporal data to parameterise hydrological models.
NEW ZEALAND JOURNAL OF AGRICULTURAL RESEARCH
(2021)
Article
Engineering, Environmental
Jialiang Liu, Qiang Xu, Pinliang Li, Pan He, Chuanhao Pu, Kuanyao Zhao, Dalei Peng, Zhuo Wang
Summary: This study investigates the influence of compaction conditions on the saturated permeability of filling loess. Experimental and analytical methods are used to determine key parameters and develop models for predicting saturated permeability, which are important for engineering construction and monitoring.
BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
(2022)
Article
Computer Science, Interdisciplinary Applications
He Chen, Shi-Jin Feng
Summary: This study develops a simple water retention model for dual-porosity soils that considers the self-similar characteristics of the pore size distribution (PSD) between macropore and micropore regions. The model simulates the macropore PSD using the differential VG model, which is then shifted and scaled to capture the micropore PSD. The results show that the proposed model can accurately predict the water retention behavior and hydraulic conductivity of dual-porosity soils.
COMPUTERS AND GEOTECHNICS
(2023)
Article
Geosciences, Multidisciplinary
Alessandro Comegna, Claudia Belviso, Anna Rita Rivelli, Antonio Coppola, Giovanna Dragonetti, Ameneh Sobhani, Simone di Prima, Antonio Satriani, Francesco Cavalcante, Stella Lovelli
Summary: The addition of zeolites, whether natural or synthetic, can alter the chemical, physical, and biological properties of soil. This has important implications for controlling pollution of both soil and groundwater, as well as managing irrigation practices. In this study, laboratory tests were conducted on soil samples mixed with zeolite to investigate changes in hydraulic and solute transport properties. Significant changes were observed with higher percentages of zeolite addition, indicating the influence of zeolite on the soil's pore size distribution.
Article
Engineering, Geological
Ana Sofia Dias, Marianna Pirone, Marco Valerio Nicotera, Gianfranco Urciuoli
Summary: This study proposed a method to obtain soil hydraulic characterization in unsaturated conditions on natural pyroclastic samples and verified its feasibility through experiments. The approach enables a full evaluation of soil hydraulic properties and the effects of hydraulic hysteresis, successfully describing the hysteretic behavior of pyroclastic soil under various conditions and paths.
Article
Engineering, Geological
Behrooz Daneshian, Ghassem Habibagahi, Ehsan Nikooee
Summary: Hydraulic conductivity of unsaturated soils is crucial for modeling various phenomena, and is influenced by factors such as soil water content and pore connectivity. Current predictive models do not adequately consider pore connectivity, while pore network models offer a more realistic portrayal of soil characteristics.
Article
Environmental Sciences
ZiQi Guo, Peng Li, XiaoMei Yang, ZhanHui Wang, BingBing Lu, WenJing Chen, Yang Wu, GuanWen Li, ZiWen Zhao, GuoBin Liu, Coen Ritsema, Violette Geissen, Sha Xue
Summary: This case study investigates the influence of microplastics on the hydraulic properties of different soil textures. The results show that addition of microplastics reduces the saturated hydraulic conductivity and water retention capacity of the soil. The effects of microplastics vary depending on the particle size, with larger particles having a weaker impact. The interaction between microplastics and soil also alters the distribution of soil pores.
ENVIRONMENT INTERNATIONAL
(2022)
Article
Soil Science
Jamal Hallam, Joseph Holden, David A. Robinson, Mark E. Hodson
Summary: The study found that earthworms have significant effects on soil physico-hydraulic properties, including increasing soil hydraulic conductivity and improving water holding capacity and soil aggregates. The synergistic effects of plants and earthworms have a more significant impact compared to when they are present individually.
Article
Environmental Sciences
Yunquan Wang, Jieliang Zhou, Rui Ma, Gaofeng Zhu, Yongyong Zhang
Summary: This paper presents a simple method for predicting soil hydraulic properties in dry conditions, which overcomes the limitations of existing methods. By applying this method to a new soil hydraulic model, more accurate predictions of soil water content and hydraulic conductivity can be achieved.
WATER RESOURCES RESEARCH
(2022)
Article
Geosciences, Multidisciplinary
Laurent Lassabatere, Pierre-Emmanuel Peyneau, Deniz Yilmaz, Joseph Pollacco, Jesus Fernandez-Galvez, Borja Latorre, David Moret-Fernandez, Simone Di Prima, Mehdi Rahmati, Ryan D. Stewart, Majdi Abou Najm, Claude Hammecker, Rafael Angulo-Jaramillo
Summary: This paper presents a procedure for computing sorptivity using a scaling parameter, c(p), for different scenarios. The c(p) parameter was numerically and analytically computed for five hydraulic models, leading to the proposal of new analytical expressions and validation of previous formulations. The results underscore the importance of carefully selecting the proper model for estimating sorptivity.
HYDROLOGY AND EARTH SYSTEM SCIENCES
(2021)
Article
Thermodynamics
Lei Chen, Feng Ming, Xiyan Zhang, Xiaobin Wei, Yuhang Liu
Summary: This study presents an experimental and theoretical method for obtaining the hydraulic conductivity of warm saturated frozen soil, which can accurately predict the hydraulic conductivity through a proposed equivalent model. The validity of the model is confirmed by comparing predictions with measured data.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2021)
Article
Environmental Sciences
Behzad Ghanbarian, Brandon A. Yokeley
Summary: Grouping soils based on similarities in their textural, taxonomic, and/or structural properties has broad applications to pedology, hydrology, and soil science. In this study, a new approach for classifying soils using hydraulic conductivity data was presented, and eight different soil classes were identified within the studied data set by calculating critical pore sizes and grouping soils with similar characteristics.
WATER RESOURCES RESEARCH
(2021)