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2023 HYDRIC SOIL CLASS
This page contains links to resources for soil classifiers, environmental consultants, educators, and the general public about hydric soils, in regard to the *2023 Hydric Soils for Wetland Determinations Course.
Disclaimer: Documents developed by the Illinois Soil Classifiers Association and other documents presented here, are from published and/or unpublished sources. Any recommendations contained herein are informational and may become dated as new research and information is developed. By acting upon, or otherwise utilizing any of this information, the user takes responsibility for any outcome and agrees to not hold ISCA, including its officers and committees, liable.
For a More Comprehensive Page of Soils Resources - Click Here!
Class Presentations
Hydric Soils & Wetlands
*Field Indicators ver 8.2 for Illinois Hydric Soils LRRs
*Field Indicators of Hydric Soils (complete)
*Redoximorphic Features for Identifying Aquic Conditions - NC State
*Field Guide for Measuring Percent Redox Coverage
*Soil Textural Triangle
*Soil Texture Flow ChartHydric Soils-USDA NRCSIllinois On-Line Drainage Guide"Illinois Drainage Guide" Circular 1226, 1984 (archived pdf booklet for determining set-back distances) National Water & Climate Center
How Water Moves Through Soil - YouTube Video
ISCA Hydric Soil Field Trips & Seminars
Soil Organizations
Other Natural Resources Links
Site 4, Day 2
After discussing this site and doing a bit of research, we concluded that the whitish layer is marl (Lma horizon) formed by near-shore lakebed sediments from a past environment. The marl was also enhanced by the accumulation of secondary carbonates which were discharged in the calcium-rich groundwater through the stratified soils. Marl is a kind of limnic material (freshwater lake sediment) that is high in calcium carbonate and generally feels chalky or silty.
