Forest Productivity – Top Species/Tree Types depicts the most productive tree species or type based on soil characteristics.
Surface Percent Organic Matter (Dominant Component)
Surface Percent Organic Matter shows the percentage of the surface layer of soil that is comprised of plant and animal residue.
Surface Texture (Dominant Component)
Surface Texture is based on the composition of sand, silt, and clay in the surface layer of soil based on the standard soil triangle definition.
Flooding Frequency (Dominant Condition)
Flooding Frequency, based on soil characteristics, has been updated to the October 2019 NRCS SSURGO data release. Note there is a change to the legend used to depict the data in this update.
SSURGO Soil Boundaries
The Soil Boundaries have been updated to the October 2019 NRCS SSURGO data release.
Hydrologic Soil Group (Dominant Condition)
Hydrologic Soil Group, which estimates potential runoff from precipitation based on soils characteristics, has been updated to the October 2019 NRCS SSURGO data release.
Farmland Class
Farmland Class, which shows prime and important farmland, has been updated to the October 2019 NRCS SSURGO data release.
Slope Gradient (Weighted Average)
Slope Gradient, depicting the steepness of the landscape by soil type, has been updated to the October 2019 NRCS SSURGO data release.