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Full-Text Articles in Social and Behavioral Sciences
Characterizing And Mapping The Field Scale Spatial Variability Of Surface Horizon Soil Properties And Water Content With Noninvasive Em38, Ryan W.R. Schroeder, Robert Austin, Joshua Heitman, Adam Howard
Characterizing And Mapping The Field Scale Spatial Variability Of Surface Horizon Soil Properties And Water Content With Noninvasive Em38, Ryan W.R. Schroeder, Robert Austin, Joshua Heitman, Adam Howard
Purdue GIS Day
The spatial variability of physical soil properties at the field scale is increasingly important in agriculture and natural resource management. Changes in topography, parent material, management practices, erosion/deposition rates, etc. can influence the variability of the soil’s physical properties and help guide management and land use plans. The Geonics EM38 is a noninvasive geophysical sensor which is used to measure the apparent electrical conductivity (ECa) of the soil through electromagnetic induction – primarily influenced by clay content, soil moisture content, and salinity. Soil moisture has been found to be a significant contributor to ECa and is therefore useful in determining …