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Artikel Jurnal
Modeling nitrogen loss using stable isotopes in mountainous watersheds of the Bohemian Slavkov Forest (NW Czech Republic)
Abstract This study presents an integrated hydrological‐hydrochemical approach to quantify reactive nitrogen (NR) cycling in temperate mountain catchments. It employs stable isotope analyses (δ2H, δ18O in water, δ15N in NH4+, and NO3− and δ18O in NO3−) to resolve interactions between water flow and…
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Artikel Jurnal
Emerging issues and research opportunities in vadose zone processes
Abstract The vadose zone—the variably saturated, near‐surface environment that is critical for ecosystem services such as food and water provisioning, climate regulation, and infrastructure support—faces increasing pressures from both anthropogenic and natural factors, including changing climatic…
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Artikel Jurnal
Comparison of the single‐ring pressure infiltrometer and SATURO methods for determination of field‐saturated soil hydraulic conductivity
Abstract Both the classical pressure infiltrometer (PI) method and the recently introduced SATURO device can be used to determine field‐saturated soil hydraulic conductivity (Kfs) through a single‐ring, steady‐state experiment with two pressure heads. The introduction of this automated device…
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Artikel Jurnal
Relationship between wetting front position and time during horizontal infiltration: Scaling law from percolation theory
Abstract Modeling water infiltration and predicting wetting front position in soils require understanding the relationship between traveling time, t, and traveling distance, x. Although the Boltzmann scaling relationship, x∝t0.5, has been widely used in the literature, in this study we applied…
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Artikel Jurnal
Characterizing the topographic index as a tool to represent spatial soil moisture: The effect of classification approach, digital elevation model type, and resolution
Abstract Grouping topographic indices (TIs) values, a topographic metric incorporating upslope contributing area and slope gradient, into topographic index classes (TIC) to estimate soil moisture variability has been shown to improve hydrologic model characterization of complex landscapes. However…
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Artikel Jurnal
Geophysical tools for agricultural management: Trends, challenges, and opportunities
Abstract Agrogeophysics is a convergence of proximal soil sensing and hydrogeophysics in which geophysical methods are used to describe soil patterns and dynamics that shape agronomic management (including precision agriculture). To fully realize its potential for optimizing agricultural…
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Artikel Jurnal
Long‐term water dynamics in the Lascaux cave karst: Impact of tree removal
Abstract Quantifying the hydrological dynamics of unsaturated karst environments in relation to their native vegetation is a critical step in developing adaptation strategies. This study investigates the effect of tree removal on water dynamics in the Lascaux karst hill in southwestern France…
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Artikel Jurnal
Assessment and Hydrus (2D/3D) simulation of soil moisture dynamics under contrasting tillage management in rainfed cropping systems
Abstract Extensive research has examined tillage effects on soil water conservation, but it often relied on point‐in‐time sampling, decoupled soil moisture content (SMC), and soil matric potential (SMP), and lacked continuous assessment of moisture dynamics. Thus, this study was conducted to…
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Artikel Jurnal
Subsurface thermal loading simulations to assess the viability of waste canister disposal in the Negev Desert, Israel
Abstract As part of a collaboration between the United States and Israel, we are investigating the viability of subsurface spent nuclear fuel (SNF) disposal in the Negev Desert, Israel. The proposed SNF disposal concept consists of a field of intermediate‐depth boreholes (IDBs) completed to a depth…
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Artikel Jurnal
Optimizing deep neural networks for estimating soil water retention curves: A comparison of metaheuristic and numerical algorithms
Abstract Accurate representation of the soil water retention curve (SWRC) is essential in hydrological modeling, particularly for predicting unsaturated zone dynamics in water and solute transport. Choosing an effective optimization method for deep neural network training significantly influences…
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Artikel Jurnal
Soil texture governs the influence of different microplastics on soil hydraulic properties
Abstract Adequate water availability in soil is crucial for optimal plant growth. However, even small amounts of microplastics (MPs) can disrupt the soil pore structure, impacting water retention and hydraulic conductivity, and consequently plant‐available water. This study investigated the effects…
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Artikel Jurnal
On the equivalence between laboratory and field estimates of soil water retention parameters and its implications for modeling oxygen diffusion in structured agricultural soils
Abstract Soil water retention parameters (SWRPs) are ubiquitously required in several hydrological and biogeochemical models to simulate water movement, contaminant fate and transport, and gas diffusion in soils. While SWRPs are typically measured in the lab, these measurements vary significantly…
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Artikel Jurnal
Temporal scale‐dependent relationships between soil moisture and temperature unveiled by Ensemble Empirical Mode Decomposition in an irrigated field
Abstract Quantifying soil moisture (SM)–soil temperature (ST) coupling is crucial for advancing modeling of energy balance at the land surface and agricultural management optimization. While previous studies have investigated SM–ST relationships at discrete temporal scales (e.g., daily or weekly)…
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Artikel Jurnal
Differential water and imidacloprid transport under unsaturated Florida citrus field conditions
Abstract Citrus production in Florida declined in the past 20 years by >72% due to citrus greening disease which is vectored by Asian citrus psyllid (ACP). Extensive use of pesticides such as imidacloprid (IDP) to manage ACP raises concerns of environmental pollution to shallow groundwater in…
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Artikel Jurnal
Deposition and release of humic acid colloids in saturated porous media
Abstract Humic acid (HA), a critical component of soil organic colloids and a key player in the carbon cycle, exhibits complex transport behaviors in porous media under varying chemical and hydrodynamic conditions. This study systematically investigates the deposition and release mechanisms of HA…
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Artikel Jurnal
Aquaculture impoundment reduces salt leaching efficiency of subsurface drainage systems in neighboring farms
Abstract Subsurface drainage is widely used in the management of agricultural soil salinization, with groundwater table control effectively reducing soil salinity. However, surface water bodies can alter regional groundwater flow, potentially impacting the efficiency of subsurface drainage for salt…
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Artikel Jurnal
Toward soil property‐driven identification of peat, limnic, and mineral horizons in Eastern Canada Histosols
Abstract Peat thickness mapping is crucial for supporting soil conservation practices at the field‐scale, but the presence of limnic layers complicates accurate estimates, including through manual probing. At this scale, proximal sensors could provide extensive data on soil stratigraphy. However…
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Artikel Jurnal
Experimental study on improving the water storage capacity of sandy capillary barrier with bio‐based or biomass materials
Abstract Capillary barrier is an engineered structure composed of a fine‐grained layer overlying a coarse‐grained layer. However, traditional two‐layer configurations of fine and coarse grains exhibit suboptimal water storage performance in semi‐humid to humid regions. Thus, we investigated the…
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Artikel Jurnal
Critical roles of short‐range‐order minerals in shaping soil water retention curves in volcanic regions
Abstract Predicting water retention is difficult for highly aggregated volcanic soils (Andisols) with heterogeneous pore size distribution. This paper aimed to examine how andic materials influence soil water retention based on soil composition. We compiled the data of water retention in the soils…
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Artikel Jurnal
Field application of amorphous silica: Effects on soil hydraulic properties and crop‐specific water availability
Abstract The plant‐available water (PAW) capacity is determined from the soil water retention (WR) curve as the difference between the water content at field capacity (FC) and the permanent wilting point (WP). To increase the PAW of arable soils, application of amorphous silicate (ASi) has been…