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Artikel Jurnal
Time‐lapse mapping of crop and tillage interactions with soil water using electromagnetic induction
Abstract Assessing spatiotemporal variations in soil water is critical to many decisions in precision agriculture. In dryland crop production regions with marginal precipitation, growers use crop rotations and surface preparation practices to build soil water natural capital over preceding seasons…
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Artikel Jurnal
Optimization of soil aquifer treatment (SAT) operation using a reactive transport model
Abstract In this work, a numerical model was developed with the aim to study the effect of drying period (DP) duration on the biogeochemical state of a soil aquifer treatment (SAT) system, and to enhance its functionality accordingly. The model was calibrated and verified using data series from…
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Artikel Jurnal
Filter for penetration resistance correction in cultivated and compacted Histosols
Abstract The objective of this study was to design, using field data, a filter to correct the soil penetration resistance (PR) values by considering all the effects (penetration friction component [PFC], varying penetration rate, and shocks) that bias PR interpretation. The data used were collected…
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Artikel Jurnal
Pore‐scale modeling of microbial activity: What we have and what we need
Abstract Under water‐unsaturated conditions, environmental factors (e.g., substrate, nutrients, O2, water activity, and porous structure) controlling microbial activity are highly variable in space and time. The physical structure of porous media (pore size distribution and pore arrangements) has…
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Artikel Jurnal
Toward high‐resolution agronomic soil information and management zones delineated by ground‐based electromagnetic induction and aerial drone data
Abstract Detailed knowledge of the intra‐field variability of soil properties and crop characteristics is indispensable for the establishment of sustainable precision agriculture. We present an approach that combines ground‐based agrogeophysical soil and aerial crop data to delineate field‐specific…
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Artikel Jurnal
Measuring nitrate leaching across the critical zone at the field to farm scale
Abstract Research is lacking monitoring beyond the root zone for programmatic or regulatory assessment and for onsite monitoring of field‐ or farm scale agricultural nitrate leaching to groundwater. Here, we investigate the relationship between measurements of N at the sediment core scale, the…
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Artikel Jurnal
Dual‐permeability modeling of preferential flow and snowmelt partitioning in frozen soils
Abstract The infiltrability of frozen soils modulates the partitioning of snowmelt between infiltration and runoff in cold regions. Preferential flow in macropores may enhance infiltration, but flow dynamics in frozen soil are complicated by soil heat transfer processes. We developed a…
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Artikel Jurnal
Slope and aspect controls on soil climate: Field documentation and implications for large‐scale simulation of critical zone processes
Abstract Soil climate, as quantified by soil temperature (TS) and water content (θ), exerts important controls on critical zone processes. It may be sensitive to variations in local slope and aspect (SA), but this attribute remains poorly quantified at the local scale and unresolved in large‐scale…
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Artikel Jurnal
Compensatory hydraulic uptake of water by tomato due to variable root‐zone salinity
Abstract Plant root systems are exposed to spatial and temporal heterogeneity regarding water availability. In the long‐term, compensation, increased uptake by roots in areas with favorable conditions in response to decreased uptake in areas under stress, is driven by root growth and distribution…
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Artikel Jurnal
On the laboratory calibration of dielectric permittivity models for agricultural soils: Effect of systematic porosity variation
Abstract Dielectric techniques are fundamental methods for measuring soil water content, and they commonly rely on the conventional laboratory calibration of the dielectric permittivity models between a dielectric constant and water content. As a non‐negligible factor, porosity has been constructed…
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Artikel Jurnal
Soil hydraulic interpretation of nuclear magnetic resonance measurements based on circular and triangular capillary models
Abstract Geophysical nuclear magnetic resonance (NMR) applications are used to estimate pore size distributions (PSDs) of rocks and sediments. This is commonly realized by empirical calibration using information about the surface‐to‐volume ratio of the material. Recent research has developed joint…
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Artikel Jurnal
Relationship between hydraulic properties and material features in a heterogeneous vadose zone of a vulnerable limestone aquifer
Abstract Limestone aquifers constitute important drinking water resources but are vulnerable to groundwater contaminations. They are also known to be often heterogeneous. However, the hydraulic properties of their entire vadose zone and the relationship of these hydraulic properties with their…
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Artikel Jurnal
A semianalytical solution of the modified two‐dimensional diffusive root growth model
Abstract Accurate estimation of the temporal and spatial root water uptake patterns in root zone is needed for an improved understanding of water and chemical transport dynamics in vadose zone. Rooting system is of great importance to describe the plant root water uptake directly. In this study…
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Artikel Jurnal
A parametric sensitivity analysis for prioritizing regolith knowledge needs for modeling water transfers in the West African critical zone
Abstract Hard rock aquifers (HRAs) in West Africa (WA) are located within a thick regolith layer. The representation of thick tropical regolith in integrated hydrological models lacks consensus on aquifer geometries and parameter ranges. Our main objective was to determine the knowledge…
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Artikel Jurnal
Coupled inversion of hydraulic and self‐potential data from transient outflow experiments to estimate soil petrophysical properties
Abstract Hydraulicproperties of soils could play an important role in affecting the partitioning of precipitation in the critical zone. In addition to traditional approaches, in the last two decades, many geophysical methods have been used to aid the hydrologic characterization and measurement of…
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Artikel Jurnal
Simplified characteristic time method for accurate estimation of the soil hydraulic parameters from one‐dimensional infiltration experiments
Abstract Recently, a novel approach with excellent performance based on the concept of the characteristic infiltration time, the characteristic time method (CTM), is proposed to infer soil sorptivity (S) and saturated hydraulic conductivity (Ks) from one‐dimensional (1D) cumulative infiltration…
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Artikel Jurnal
The feasibility of shortwave infrared imaging and inverse numerical modeling for rapid estimation of soil hydraulic properties
Abstract Measurements of the soil water characteristic (SWC) and unsaturated hydraulic conductivity [K(h)] curves, which are at the core of modeling flow and transport processes in porous media, are laborious and prone to experimental errors. To overcome some of the current experimental…
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Artikel Jurnal
Applicability of soil moisture sensors for monitoring water dynamics in rock: A field test in weathered limestone
Abstract Rock moisture in the vadose zone, while recognized as important, is rarely monitored—in part because adequate instrumentation and installation techniques are lacking. The objectives of this work were (a) to test the applicability of a commercially available capacitance soil moisture sensor…
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Artikel Jurnal
Prediction of soil evaporation measured with weighable lysimeters using the FAO Penman–Monteith method in combination with Richards’ equation
Abstract Multiannual data (2016–2018) from 12 weighed lysimeters (four soil types with textures ranging from sandy loam to silt loam, three replicates) of the TERENO SOILCan network were used to evaluate if evaporation (E) rates could be predicted from weather data using the FAO Penman–Monteith…