This review presents and examines relevant information from existing spatial variability studies of soil water and solute transport properties. Although most of the information available allowed only a conventional statistical analysis (mean and variance) of the pertinent properties, the field studies of (Nielsen, Biggar, and Erh (1973)) and (Russo and Bresler (1981)) were also suitable for spatial structure analysis. Detailed structural analysis of the saturated hydraulic conductivity (Ks) of these two fields demonstrated how this type of analysis may reveal field characteristics that are not apparent from conventional statistical analysis.
