Soil References

Key to the Control Section for Particle-Size Classes and Their Substitutes in Mineral soils

Kinds of Organic Soil Materials

http://soils.usda.gov/technical/

Florida Hydric Soil Indicators for Delineation (June, 2010)

CRITERIA FOR HYDRIC SOILS

 1.All Histosols except Folists, or
 2.Soils in Aquic suborders, great groups, or subgroups, Albolls suborder, Aquisalids, Pachic subgroups, or Cumulic subgroups that are:

 a. Somewhat poorly drained with a water table equal to 0.0 foot (ft) from the surface during the growing season, or
 b. poorly drained or very poorly drained and have either:

 (1) water table equal to 0.0 ft during the growing season if textures are coarse sand, sand, or fine sand in all layers within 20 inches (in), or for other soils
 (2) water table at less than or equal to 0.5 ft from the surface during the growing season if permeability is equal to or greater than 6.0 in/hour (h) in all layers within 20 in, or
 (3) water table at less than or equal to 1.0 ft from the surface during the growing season if permeability is less than 6.0 in/h in any layer within 20 in, or

 3.Soils that are frequently ponded for long duration or very long duration during the growing season, or
 4.Soils that are frequently flooded for long duration or very long duration during the growing season.

 

http://www.nrcs.usda.gov/Internet/FSE_DOCUMENTS/nrcs144p2_002281.pdf