Article
Thermodynamics
Imane Oubrahim, Thierry Duforestel, Rafik Belarbi
Summary: This study investigates the impact of water sorption hysteresis on the heat/moisture transfer of building materials. The Mualem model is integrated into a simulation tool, and a comparison is made between simulations with and without hysteresis, and experimental results. The integration of Mualem hardly changes the simulations, and the modified model produces more convincing results with a reduced error percentage in relative humidity. Additionally, an often neglected parameter that could impact hygrothermal modeling is identified.
HEAT AND MASS TRANSFER
(2022)
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
Energy & Fuels
Riccardo Scarfone, Simon J. Wheeler, Marti Lloret-Cabot
Summary: Water retention hysteresis in unsaturated soils has a significant impact on hydraulic conductivity behavior. This paper presents a new hydraulic constitutive model that effectively describes the water retention and hydraulic conductivity behavior of unsaturated soils and validates the model against experimental data. The application study of the model demonstrates that water retention hysteresis has a significant impact on the behavior of capillary barrier systems, including water movement and redistribution, breakthrough phenomena, and evaporation prediction.
GEOMECHANICS FOR ENERGY AND THE ENVIRONMENT
(2022)
Article
Environmental Sciences
Sascha C. Iden, Johanna R. Blocher, Efstathios Diamantopoulos, Wolfgang Durner
Summary: Evaporation experiments are commonly used for determining soil hydraulic properties, with film flow identified as a significant factor in influencing the soil hydraulic conductivity and evaporation rate. The results show that the Richards equation can be used for identifying hydraulic properties without bias from evaporation experiments.
WATER RESOURCES RESEARCH
(2021)
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
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
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
Soil Science
Taiwo Adeyemo, Isaac Kramer, Guy J. Levy, Yair Mau
Summary: Soil salinization and sodification can cause severe damage to soil structure, impacting irrigated agriculture. Understanding the extent to which this degradation is reversible is crucial for sustainable long-term use. This study explores the effects of solute composition on saturated hydraulic conductivity and highlights the importance of managing hysteresis caused by salinity and sodicity for better soil management.
Article
Engineering, Civil
Shawkat B. M. Hassan, Giovanna Dragonetti, Alessandro Comegna, Asma Sengouga, Nicola Lamaddalena, Antonio Coppola
Summary: The main purpose of this paper is to develop a bimodal pedotransfer function to obtain soil water retention curves and hydraulic conductivity curves. By incorporating aggregate-size distribution, the proposed function improves the prediction accuracy of soil hydraulic properties compared to the traditional unimodal approach.
JOURNAL OF HYDROLOGY
(2022)
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)
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
Soil Science
Rudiyanto, Budiman Minasny, Nathaniel W. Chaney, Federico Maggi, Sunny Goh Eng Giap, Ramisah M. Shah, Dian Fiantis, Budi Setiawan
Summary: This study introduces neuroFX, a suite of PTFs developed for estimating soil hydraulic curves based on the FXW model. It offers an uncertainty estimate of hydraulic parameters and outperformed existing PTFs such as ROSETTA and BW in predicting soil water retention and unsaturated hydraulic conductivity curves.
Article
Environmental Sciences
Andre Peters, Tobias L. Hohenbrink, Sascha C. Iden, Wolfgang Durner
Summary: The mathematical representation of soil hydraulic properties is crucial for modeling transport processes in soils. Existing models are suitable for medium to wet moisture ranges but may fail in dry soils. The PDI model overcomes these structural shortcomings, requiring an additional parameter for non-capillary flow dominance, and improves conductivity prediction compared to established models.
WATER RESOURCES RESEARCH
(2021)
Article
Engineering, Geological
Qian Zhai, Weimin Ye, Harianto Rahardjo, Alfrendo Satyanaga, Yanjun Du, Guoliang Dai, Xueliang Zhao
Summary: This paper presents a new method for estimating the hydraulic conductivity of unsaturated soil by considering the film flow. The proposed method is validated using experimental data from literature. The results suggest that both capillary water flow and film flow should be considered in the estimation of the hydraulic conductivity of unsaturated soil.
CANADIAN GEOTECHNICAL JOURNAL
(2022)
Article
Engineering, Geological
Qian Zhai, Harianto Rahardjo, Alfrendo Satyanaga, Yiyao Zhu, Guoliang Dai, Xueliang Zhao
Summary: Rainfall-induced slope failures are mainly caused by infiltrated rainwater reducing soil shear strength. This study proposes a method for estimating the hydraulic conductivity function (HCF) of unsaturated soil during the wetting process based on the drying soil-water characteristic curve (SWCC). The estimation considers ink-bottle and rain-drop effects on the hysteresis of SWCC and was verified using experimental data from published literature.
ENGINEERING GEOLOGY
(2021)
Article
Soil Science
Peipei Xue, Budiman Minasny, Alex McBratney, Vanessa Pino, Mario Fajardo, Yu Luo
Summary: Microorganisms play crucial roles in soil processes, and different microbial functional groups control nutrient cycling in soils. This study investigated the environmental and soil factors that drive the distribution of bacterial functional groups involved in soil carbon cycling. The results showed that temperature, rainfall, and soil properties significantly influenced the bacterial functional groups, and agricultural practices also had significant impacts on the composition and responses of these groups.
EUROPEAN JOURNAL OF SOIL SCIENCE
(2023)
Editorial Material
Environmental Sciences
Cornelia Rumpel, Farshad Amiraslani, Deborah Bossio, Claire Chenu, Magali Garcia Cardenas, Beverley Henry, Alejandro Fuentes Espinoza, Lydie-Stella Koutika, Jagdish Ladha, Beata Emoke Madari, Budiman Minasny, Adesola Olaleye, Saidou Nourou Sall, Yasuhito Shirato, Jean-Francois Soussana, Consuelo Varela-Ortega
REGIONAL ENVIRONMENTAL CHANGE
(2023)
Article
Environmental Sciences
Xiao-Lin Sun, Budiman Minasny, Yun-Jin Wu, Hui-Li Wang, Xiao-Hui Fan, Gan -Lin Zhang
Summary: The increase in soil organic carbon (OC) in China over the past two decades suggests that atmospheric carbon dioxide is being sequestered into the soil, mitigating climate change and improving soil health. However, there have also been reports of soil pH decrease nationwide, which may negatively impact soil quality for food production and the environment. This study investigates the relationship between soil OC and pH using large-scale soil survey data from two provinces in China and finds that the changes in OC and pH are significantly correlated, with increased soil nitrogen content as the linking factor. The decrease in pH is particularly significant in the eastern region of China, where soils are more neutral in pH. The study recommends exploring alternative methods of carbon sequestration in soil to avoid potential acidification effects caused by excessive nitrogen application.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Studies
Yuxin Ma, Budiman Minasny, Valerie Viaud, Christian Walter, Brendan Malone, Alex McBratney
Summary: Soil organic carbon (SOC) redistribution plays a significant role in affecting soil quality. This study introduces a coupled-model combining RothPC-1 and a soil redistribution model to simulate SOC changes in the Lower Hunter Valley area. Results show that erosion is mainly predicted in upslope areas and deposition in low-lying areas. The study emphasizes the importance of considering soil redistribution in SOC dynamics modeling to avoid overestimation of SOC stocks.
Article
Geosciences, Multidisciplinary
Peipei Xue, Budiman Minasny, Alex McBratney, Neil L. Wilson, Yijia Tang, Yu Luo
Summary: Soil microbial communities are influenced by soil types and land use. This study investigated contrasting soils of natural forest and cropped vineyard in New South Wales, Australia and found that land use affected the bacterial community distribution in the topsoil, while soil types influenced the assembly of microbial communities in the subsoil. The study also revealed a decrease in topsoil organic carbon in the vineyard compared to the forest, which was correlated with changes in C-related genes and potentially accelerated carbon loss.
Article
Geosciences, Multidisciplinary
Andree M. Nenkam, Alexandre M. J. -C. Wadoux, Budiman Minasny, Alex B. McBratney, Pierre C. S. Traore, Anthony M. Whitbread
Summary: Many areas in the world lack sufficient soil data, leading to ineffective soil-related studies and inadequate soil management strategies. This paper demonstrates how to find "homosoils", which are geographically distant but share similar soil-forming factors, in order to obtain new soil data for a study area. By clustering the study area into homogeneous areas and identifying a homosoil for each area using distance metrics, this approach provides a solution to the problem of sparse soil data. The concept of homosoils shows promise for future applications such as transferring soil models and agronomic experimental results between areas.
Article
Environmental Sciences
Chiara Pasut, Fiona H. M. Tang, Budiman Minasny, Charles R. Warren, Feike A. Dijkstra, William J. Riley, Federico Maggi
Summary: In this study, the turnover time of soil organic carbon (SOC) pools in global wetlands and the governing processes were quantified using a comprehensive process-based biogeochemical model. The results showed that SOC turnover time ranged from 1 to 1,000 years and was mainly controlled by anaerobic and aerobic respiration, as well as abiotic destabilization from soil minerals. The findings also revealed seasonal variability in SOC turnover, indicating the need for better accounting of seasonal fluctuations to estimate carbon exchanges between wetlands and the atmosphere at geographic scales.
GLOBAL BIOGEOCHEMICAL CYCLES
(2023)
Article
Multidisciplinary Sciences
Alexandre M. J-C. Wadoux, Mercedes Roman Dobarco, Brendan Malone, Budiman Minasny, Alex B. McBratney, Ross Searle
Summary: This article introduces a new dataset of high-resolution gridded total soil organic carbon content data across Australia. The dataset includes six maps of soil organic carbon content at two resolutions and provides uncertainty estimates. The maps were obtained through interpolation of organic carbon measurements and validation showed small errors and adequate prediction uncertainty. These soil carbon maps are important for monitoring carbon stock changes and assessing the influence of climate change, land management, and greenhouse gas offset.
Article
Environmental Sciences
Budiman Minasny, Diana Vigah Adetsu, Matt Aitkenhead, Rebekka R. E. Artz, Nikki Baggaley, Alexandra Barthelmes, Amelie Beucher, Jean Caron, Giulia Conchedda, John Connolly, Raphael Deragon, Chris Evans, Kjetil Fadnes, Dian Fiantis, Zisis Gagkas, Louis Gilet, Alessandro Gimona, Stephan Glatzel, Mogens H. Greve, Wahaj Habib, Kristell Hergoualc'h, Cecilie Hermansen, Darren B. Kidd, Triven Koganti, Dianna Kopansky, David J. Large, Tuula Larmola, Allan Lilly, Haojie Liu, Matthew Marcus, Maarit Middleton, Keith Morrison, Rasmus Jes Petersen, Tristan Quaife, Line Rochefort, Linda Rudiyanto, Linda Toca, Francesco N. Tubiello, Peter Lystbaek Weber, Simon Weldon, Wirastuti Widyatmanti, Jenny Williamson, Dominik Zak
Summary: Peatlands, covering only a small percentage of the Earth's surface, are a significant carbon store. However, they are under threat due to degradation. To protect and reduce emissions from these carbon-rich ecosystems, countries have implemented regulations. This paper reviews the current state of knowledge on mapping and monitoring peatlands and highlights the need for more consistent approaches.
Article
Agronomy
Dian Fiantis, Frisa Irawan Ginting, Rahmat Padrikal, Diki Prayoga, Boby Arianto, Rahmatul Fajrianeldi, Malik Nelson
Summary: Volcanic soils in Sumatra have high agronomical value and can produce high-quality tea and rice. However, declining soil organic carbon and high phosphorus retention are two main issues in these soils. This study investigated the dynamic of carbon and phosphorus content in volcanic soils and identified the main controls of their variation. The results showed that cultivation activities influenced the geochemical properties of the soils and subsequently affected carbon and phosphorus content.
COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS
(2023)
Article
Environmental Sciences
Kanika Singh, Ignacio Fuentes, Dhahi Al-Shammari, Chris Fidelis, James Butubu, David Yinil, Amin Sharififar, Budiman Minasny, David Guest, Damien J. Field
Summary: This study combined high-resolution satellite imagery with novel signal extraction methods to evaluate the feasibility and soil capacity of cocoa cultivation, and identified potential cocoa regions. The results showed that the classification accuracy of cocoa regions reached 97%, demonstrating the feasibility of this method for monitoring land use and cocoa production.
Article
Geosciences, Multidisciplinary
Andre Peters, Tobias L. L. Hohenbrink, Sascha C. C. Iden, Martinus Th. van Genuchten, Wolfgang Durner
Summary: For modeling flow and transport processes in the soil-plant-atmosphere system, predicting the hydraulic conductivity function accurately is crucial. However, the classical approach of scaling the predicted relative conductivity with the measured saturated conductivity often leads to poor predictions due to uncertain and biased measurements of Ks. In this paper, a reformulation of the unsaturated hydraulic conductivity function is proposed, replacing soil-specific Ks with a universally applicable effective saturated tortuosity parameter ts. Testing with independent data showed that the new prediction scheme significantly improves accuracy, with a mean error of less than half an order of magnitude.
HYDROLOGY AND EARTH SYSTEM SCIENCES
(2023)
Article
Water Resources
Katsutoshi Seki, Nobuo Toride, Martinus Th. Van Genuchten
Summary: The objective of this study is to demonstrate the practical usefulness of the proposed equations for water retention and hydraulic conductivity in porous media. Three models were evaluated and showed good agreement with measured data for a wide range of pressure heads. The study highlights the simplicity and consistency of the proposed equations for practical applications.
JOURNAL OF HYDROLOGY AND HYDROMECHANICS
(2023)
Article
Water Resources
Thais M. Silveira, Fernanda Hoerlle, Adriano S. Rocha, Maira C. O. Lima, Mateus G. Ramirez, Elizabeth M. Pontedeiro, Martinus Th. van Genuchten, Daniel O. A. Cruz, Paulo Couto
Summary: CO2 injection is a well-known technique for enhancing oil recovery, but understanding its effects on petrophysical properties is crucial. This study evaluated the impact of CO2 injection on coquina samples from the Morro do Chaves Formation in Brazil and found a significant decrease in absolute permeability, but little change in porosity and no wormhole formation.
JOURNAL OF HYDROLOGY AND HYDROMECHANICS
(2022)
