Physiographic Regions of Iowa (Shapefile)

The state of Iowa contains diverse landscapes, each with subtle but impactful differences in their physical characteristics. This data set builds on the previously established landform regions of Iowa (Prior, 2000). All boundaries have been refined based on spatial data sets that become available since Prior (2000). Most importantly, this data set introduces subregions that …Continue reading “Physiographic Regions of Iowa (Shapefile)”

Digital Hillslope Position as an Alternative Method for Soil Mapping: A Case Study for Soil Surface Properties and Topsoil Thickness in Iowa

A statistical comparison of soil properties classified via Digital Hillslope Position and Floodplain algorithm vs. gSSURGO and Iowa physiographic regions.