Distribution of Histosols in Iowa
Author: Bradley Miller
This map displays the distribution of Histosols—organic-rich soils formed primarily from accumulated plant material under saturated conditions—across Iowa. Histosols are typically found in wetlands, peat bogs, and depressional areas where water limits decomposition. These soils are significant for carbon storage, water filtration, and ecological function but are limited in conventional agricultural use without drainage.
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Source:
Produced by the Geospatial Laboratory for Soil Informatics (GLSI) at Iowa State University.
Catherine DeLong, Burras Pedology Group
Department of Agronomy
Iowa State University
Interpretation:
Histosols occur primarily in northern and northeastern Iowa and are visible as small, scattered areas on the map. These soils have high organic matter content and play important roles in environmental and hydrologic processes. They are sensitive to disturbance and often require specific management if used agriculturally.
Resolution:
10-meter raster resolution; displayed as a statewide static image
Suggested Use:
Ideal for wetland delineation, conservation planning, ecological studies, and carbon accounting. This map helps land managers identify areas where soil characteristics may restrict development or require specialized agricultural practices.
References:
Natural Resource Conservation Service (2013) and Iowa Soil Properties and Interpretations Database (7.3)