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Artikel Jurnal
Impacts of Competitive Sorption Processes on Remediation Goals for Contaminated Soils
A combined water infiltration and chemical fate and transport model was constructed to simulate the transport of a sorbed chemical present at a low concentration (mimicking the residual amount of chemical left in soil after clean‐up) from soil to groundwater in the presence of competing solutes. A…
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Artikel Jurnal
Evaluation of Nonparametric Shape Measures for Solute Breakthrough Curves
A better understanding of the relationships among preferential solute transport, hydrologic boundary conditions, and site properties will help to improve predictions of the fate of contaminants in the vadose zone. The diversity of mechanisms underlying preferential transport, together with problems…
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Artikel Jurnal
Quantitative Two‐Layer Conductivity Inversion of Multi‐Configuration Electromagnetic Induction Measurements
Electromagnetic induction (EMI) measurements return an apparent electrical conductivity that represents a weighted average of the electrical conductivity distribution over a certain depth range. Different sensing depths are obtained for different orientations, different coil offsets, and different…
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Artikel Jurnal
X‐Ray Fluorescence Analysis for Total Bromine Tracking in the Vadose Zone: Results for Mnsara, Morocco
Tracking Br− movement through the vadose zone by taking undisturbed core samples and using ion chromatographic techniques based on soil‐water extracts is difficult and time consuming. Moreover, the presence of Cl− in the soil may hamper Br− detection due to interference between the two ions. The…
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Artikel Jurnal
Uncertainty in the Volume Strain Field of the Solid in Unsaturated Heterogeneous Deforming Media
In a partially saturated, heterogeneous deforming aquifer, we analyzed the solid's volume strain field within a stochastic framework. The differential equations describing the first two moments of the solid's volume strain field were developed through the perturbation approach. To solve the problem…
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Artikel Jurnal
Integrating Plant Gas Exchange, Soil, and Hydrological Parameters in an Analytical Model: Potential Use and Limitations
During photosynthesis, plants inevitably lose water that has to be continuously replaced by soil water absorbed by the roots. Hydrological status of the soil, root absorption, plant water transport, gas exchange and atmosphere are therefore intricately coupled within the soil–plant–atmosphere…
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Artikel Jurnal
Soil Water Retention and Relative Permeability for Conditions from Oven‐Dry to Full Saturation
Common conceptual models for unsaturated flow assume that the matric potential is attributed to the capillary force only. These models are successful at high and medium water contents but often give poor results at low water contents. The lower bound of existing water retention functions and…
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Artikel Jurnal
Long‐Term Soil Water Trends across a 1000‐m Elevation Gradient
There is a general consensus among climate models that the direct influence of increasing temperature on evaporative demand will result in drier soils, reduced water supply, and more frequent drought conditions. The data available to evaluate long‐term soil water trends that may result from climate…