How do I interpret EC data from the two depths of EC arrays?
Veris Soil EC mapping quickly reveals that soil varies in three dimensions: X, Y, and -Z. The examples below are simplified scenarios of this variability: Scenario 1: relatively deep topsoil that has very slight textural changes with depth (-Z); but that deep top-soil varies within the field (X and Y). In this scenario, the two arrays will show a similar pattern of zones, frequently with slightly higher EC in the deeper array. In this scenario, the patterns on the EC map relate to the soil texture differences in X and Y direction. Scenario 2: The depth of the topsoil varies significantly (-Z), and the subsoil has a significantly different texture–such as a claypan, sand lense, gravel, or bedrock. In this scenario, the two maps often reveals quite different patterns. These differences in EC relate to the differences in topsoil and subsoil textures. If topsoil is relatively consistent, but there is a lot of variability in the depth of topsoil over clay or gravel (any textural discontinu
