Appendix A,page 36 Chapter 1. There are several variations of this definition. Hydric Soils Wetland Hydrology Hydrophytic Vegetation Hydric Soils Soils formed under conditions of saturation, flooding, or ponding long enough during the growing season to develop anaerobic conditions in the upper part.
Hydric soils are generally organic soils, but sandy and mineral soils can also be hydric.