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Vadose Zone Journal
Scopus
ISSN 1539-1663 · Wiley · 790 articles in the index
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Journal Article
Impacts of meteorological forcings on simulated soil moisture stress for rainfed crops at a US Corn Belt site
Abstract Temperature and precipitation change can increase crop water stress leading to declines in crop yield. In the US Corn Belt, previous studies have found that the topsoil is drying. But crops, even in systems with restrictive soil layers, access water from beneath the topsoil and it is…
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Journal Article
Free‐access geospatial data and machine learning deliver high‐resolution soil salinity maps in the Sonoran Basin and Range
Abstract Soil salinity is a serious threat to crop productivity and is anticipated to increase in the coming decades, particularly in semi‐arid to arid agricultural regions. Accessible geospatial data and data mining techniques can enable high‐resolution mapping of soil salinity to improve…
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Journal Article
Capturing soil moisture and salinity changes in flooded coastal forests using electrical resistivity and induced polarization
Abstract Geophysical methods provide high‐resolution spatial measurements of physical quantities sensitive to changes in soil moisture and salinity and can be used to monitor soil hydrological responses to flooding. However, extracting quantitative hydrological information from geophysical data…
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Journal Article
Forecasting and uncertainty estimation of the Shahroud River discharge using long short‐term memory and Kolmogorov–Arnold networks
Abstract Forecasting river discharge plays a vital role in water resources management, flood control, and also the safe design of hydraulic structures. Due to the complexity and nonlinearity of hydrological processes, in this research, long short‐term memory (LSTM) and Kolmogorov–Arnold networks…
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Journal Article
Soil structure changes under reduced tillage and cover cropping enhance carbon mineralization in Mediterranean croplands
Abstract Conservation agriculture practices like no‐tillage and cover cropping are promoted for rebuilding soil health and sequestering carbon, but their effectiveness in irrigated systems remains questioned. We hypothesized that improved soil structure under conservation practices could…
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Journal Article
The plant‐available water associated with the four critical soil suctions vary depending on the different soil textures
Abstract Critical soil suctions of plant‐available water (PAW), including the soil water suction at field capacity (hFC), threshold suction (hthreshold), tipping suction (htipping), and permanent wilting point (hPWP). Existing research has confirmed that the hydraulic parameters of different soil…
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Journal Article
Effects of sludge‐based biochar application on heavy metals bioavailability and migration–transformation in coastal saline soil
Abstract The objective of this study is to evaluate the environmental risks posed by heavy metals during the remediation of coastal saline soil using sewage sludge and sludge‐based biochar, with a view to providing a theoretical basis for the sustainable use of coastal saline soil and sludge…
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Journal Article
Using Sentinel‐1 and Sentinel‐2 to assess the role of soil water content and vegetation cover in mitigating wind erosion in cultivated organic soil
Abstract Wind erosion is a major threat to organic soils under intensive agriculture, reducing their productivity and long‐term sustainability. Up to 2.5 cm of soil can be lost in a single storm. This study examined how soil water content and vegetation cover influence wind erosion in cultivated…
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Journal Article
Unraveling soil moisture dynamics with dual‐scale interpretable machine learning: Cover cropping and irrigation insights in semi‐arid agriculture
Abstract Soil moisture prediction remains a major challenge in arid and semi‐arid agroecosystems, where highly variable rainfall, intermittent irrigation, and heterogeneous soil properties create strong nonlinearities in soil‐water dynamics. Reliable forecasts and interpretable models are needed…
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Journal Article
A comprehensive drought characterization of Bangladesh using integrated remote sensing observations and land surface model outputs
Abstract Drought is a period of below‐average precipitation in a given region, resulting in a shortage of water supply, whether atmospheric, surface, or groundwater. Countries like Bangladesh suffer from frequent drought due to deficient and uneven rainfall, poor or delayed rainfall, and high…
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Journal Article
Two‐dimensional Green–Ampt response of high‐capacity tensiometers and a conceptual pathway to correct dynamic water retention curve data
Abstract In the investigation of the relationship between measured soil suction and the rate of saturation change, an increase in response time prevents the tensiometer from instantaneously reacting to changes in suction. Solving this problem requires a tensiometer response model, which is based on…
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Journal Article
Effect of irrigation and drainage practices on soil microbial community composition and physicochemical properties in typical saline–alkaline soil
Abstract Irrigation and subsurface drainage (ISD) is used to improve physicochemical properties of soil; however, its effects on soil microorganism characteristics are not well understood, particularly in saline–alkaline soils. In this study, a 1‐year (2023–2024) field experiment was conducted in…
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Journal Article
Alternating salt and freshwater floods of coastal soils impact soil structure, hydraulic properties, and oxygen dynamics
Abstract Coastal soils are increasingly impacted by hydrologic intensification in the form of rising sea level and flooding from storm surges and precipitation. Alternating saltwater (SW) and freshwater (FW) exposure has the potential to disperse colloids, which can lead to disintegration of soil…
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Journal Article
Influence of plateau, slope, and valley on soil hydrology during the dry season in a Central Amazon old‐growth forest
Abstract Soil moisture regulates plant water supply and drought sensitivity in tropical forests, yet its vertical and topographic variation remains poorly characterized. We combined high‐frequency time‐domain reflectometry measurements from 5 to 100 cm across plateau, slope, and valley landforms at…
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Journal Article
Modeling soil moisture from rainfall: An evaluation of the diagnostic soil moisture equation
Abstract The diagnostic soil moisture equation (DSME), which estimates soil moisture from antecedent precipitation, can be used to gap‐fill and extend existing in situ records. We train and evaluate the DSME at 157 Soil Climate Analysis Network and 113 US Climate Reference Network (USCRN) stations…
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Journal Article
Imaging of microplastic distribution–related unsaturated water flow in sand
Abstract Soil is the largest sink of microplastic (MP) in terrestrial ecosystems, yet little is known about the transport of MP in soils and its effect on water flow. Since pristine MP can generally be considered water repellent, the transport of MP and water flow are subject to feedback processes…
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Journal Article
Effects of a variable air–water interface on injection of PFAS—Lessons learned from column tests with porous media
Abstract Five column experiments were conducted using a mixture of 10 per‐ and polyfluoroalkyl substances (PFASs) to explore sampling techniques for the PFAS injection solution concentration in order to accurately determine the tracer mass within the experimental system and close the mass balance…
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Journal Article
Mitigating greenhouse gas emissions from a tropical sandy loam using oil palm empty fruit bunch biochar and compost amendments
Abstract The role of biochar in mitigating greenhouse gas (GHG) emissions from tropical soils, especially when combined with compost, is still not adequately researched. This study evaluated the effects of oil palm empty fruit bunch (EFB) biochar applied at 10 and 20 t ha−1 (B10 and B20), compost…
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Journal Article
Hydrological and microbial dynamics in an Arctic wastewater infiltration system
Abstract Passive wastewater treatment systems are widely used in the Arctic, but studies addressing the vadose zone dynamics that influence the operation and performance of subsurface or soil‐based infiltration systems, such as rapid infiltration basins, are rare. In Fort Good Hope, a community of…