Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"Soil map units"”.
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Developing and evaluating a method to disaggregate legacy SSURGO soil maps
For soil mapping, legacy (survey) data has its greatest potential in the disaggregation of complex soil mapping units. Disaggregation in this context is possible by relating different soils within a single map unit to other known characteristics of the landscape such as slope and curvature. For the …
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Evaluation of Sulfidic Materials in Virginia Highway Corridors
… i) to develop a state-wide sulfide hazard rating map based on characterization of the geologic formations associated with acid roadcuts, ii) to estimate depth to sulfidic sediments in the Coastal Plain based on landscape relationships, and iii) to evaluate potential acidity testing procedures on …
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Development of a Hydrologic Model for an Urban Headwater Stream: The Influence of Pervious Surface Properties on Runoff Dynamics
… area, slope, etc.), infiltration potential of soil map units, LULC, and percent ISA. These datasets were analyzed to provide input parameters and develop a Storm Water Management Model (SWMM) for the MC catchment. To more accurately characterize the infiltration potential of the pervious areas …
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Multi-temporal remote sensing for estimation of plant available water-holding capacity of soil
Soil maps are fundamental for agricultural management. However, mapping soils is a difficult task because of their high spatial variability and the challenge of choosing representative field sites for soil analysis. Globally, soil information is becoming a prioritized agenda, due to the increasing …
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Saturated hydraulic conductivity in the humid tropics : sources of variability, implications for monitoring and effects on near-surface hydrological flow paths
… water demand and by influencing key soil properties which determine hydrological flow paths. One of these key properties sensitive to land-use change is the saturated hydraulic conductivity (Ks) as it governs vertical percolation of water within the soil profile. Low values of Ks in a …
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A model of nitrate leaching from agricultural systems in the northern neck of Virginia
… Bay. VTCROPS simulates N fate and transport in a soil-plant-atmosphere continuum in a vertical slice between two crop rows, enabling consideration of nonuniform fertilizer placement and root growth patterns. VTCROPS models atmospheric, soil and crop subsystems. Atmospheric conditions (rainfall, …
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Methodology for the disaggregation of polytaxic cartographic units in intensive conventional soil maps. Application towards the improvement of the integrated terroir zoning of the designation of origin campo de Borja
… con la gestión del suelo, el desarrollo de mapas detallados de este recurso. Una vía para conseguirlo es la mejora de los mapas convencionales existentes mediante la "disgregación" de las unidades cartográficas definidas, que usualmente son politáxicas, en nuevas unidades más específicas y …