Geospatial Measurements of Apparent Soil Electrical Conductivity for Characterizing Soil Spatial Variability

This chapter provides an overview of the characterization of soil spatial variability using EC(a) directed soil sampling for three different landscape-scale applications; (1) solute transport modeling in the vadose zone; (2) site-specific crop management; and (3) soil quality assessment. Guidelines, methodology, strengths and limitations are presented for characterizing spatial and temporal variation in soil physiochemical properties using EC(a) directed soil sampling.