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Modeling Three-Dimensional Spatiotemporal Heterogeneity In Soils Using A Depth-Discretization, Bulk Electrical Conductivity Approach
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2020
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Continued anthropogenic and climatic pressures on soil and water resources dictate the need to forgo blanket resource management strategies in favor of site-specific, high precision resource conservation. This is critical in resource-stressed, agriculture-dependent areas but also in areas of rapidly expanding urban/suburban centers resulting in encroachment on natural landscapes or agriculture lands. Central to the development of site-specific management strategies are the quantification and mapping of the geospatial variability in soil properties at significantly higher resolutions than provided in current soil surveys. This research covers results from collaborative research efforts between researchers at Texas Christian University and two Algerian institutions in using non-invasive measurements of bulk apparent electrical conductivity (ECa) to quantify 3-D soil variability at the landscape-scale. The focus will be on the derivation and application of depth-specific ECa-CEe, ECa-clay content and ECa-water content relationships for use in understanding nutrient and water dynamics in near-surface environments.
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27960290.pdf
Adobe PDF, 26.04 MB
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Geological Sciences