1999
DOI: 10.2134/jeq1999.00472425002800020012x
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Evaluation of a GIS‐Linked Model of Salt Loading to Groundwater

Abstract: The ability to assess through prognostication the impact of nonpoint source (NPS) pollutant loads to groundwater, such as salt loading, is a key element in agriculture's sustainability by mitigating deleterious environmental impacts before they occur. The modeling of NPS pollutants in the vadose zone is well suited to the integration of a geographic information system (GIS) because of the spatial nature of NPS pollutants. The GIS‐linked, functional model TETrans was evaluated for its ability to predict salt lo… Show more

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Cited by 41 publications
(34 citation statements)
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“…The use of EM signal ratios have also shown to provide insights into the prevailing hydrologic conditions and may therefore be useful for water table depth prediction. For example, Corwin et al (1999) used the ratio of EM38-h to EM38-v to assess leaching and salt loading to ground water, while Mankin and Karthikeyan (2002) predicted salinity seep movement. In this article, the ratio of EM38-h and EM38-v is denoted as EM38-h/EM38-v.…”
Section: Ancillary Data Variablesmentioning
confidence: 99%
“…The use of EM signal ratios have also shown to provide insights into the prevailing hydrologic conditions and may therefore be useful for water table depth prediction. For example, Corwin et al (1999) used the ratio of EM38-h to EM38-v to assess leaching and salt loading to ground water, while Mankin and Karthikeyan (2002) predicted salinity seep movement. In this article, the ratio of EM38-h and EM38-v is denoted as EM38-h/EM38-v.…”
Section: Ancillary Data Variablesmentioning
confidence: 99%
“…The profile ratios were defined as EM h /EM v . In essence, the profile ratio is analogous to the leaching fraction, while the geometric mean approximates relative salinity in the root zone (Corwin et al, 1999).…”
Section: Field-scale Studymentioning
confidence: 99%
“…In the past the characterization of soil spatial variability using EC a -directed soil sampling has focused on four different landscape-scale applications: (i) solute transport modeling in the vadose zone (Corwin et al, 1999), (ii) site-specific crop management (Corwin et al, 2003a;Corwin and Lesch, 2005a), (iii) deep drainage flux (Triantafilis et al, 2003, and (iv) soil quality assessment (Johnson et al, 2001;Corwin et al, 2003b;Corwin and Lesch, 2005c;Triantafilis and Lesch, 2005). The application of EC a -directed soil sampling to characterize soil quality has mainly occurred in the Great Plains and arid Southwest of the USA and in Australia.…”
Section: Introductionmentioning
confidence: 99%