Comparisons between spectral mapping units derived from SPOT imager texture and field soil map units

Abstract

A spectral soil map, depicting map unit variability due to soil properties, would be a useful addition to field investigations in separating soil units in a soil survey program. This study was conducted to assess the usefulness of image texture features in discriminating among soil map units based on pertinent soil properties. SPOT satellite image texture data derived from transformation of the original image were classified for mapping unit separability in two 3108-ha areas in Ford County, Illinois. The image texture map units and field soil map units from a survey of the area were analyzed by discriminant analysis procedure to show how the depicted map units were separated based on variability of pertinent soil properties