All About Soil

                                                             Georgia Soil                                        Soil Codes are Grouped By Major Land Resource Area

There are three basic soil types, pedalfers, pedocals, and laterites.  Pedalfers, common in areas of high rainfall have a high concentration of aluminum and iron because all of the soluble calcium carbonate has been leached out. Laterites, found in tropical areas with extremely high rainfall, have even higher aluminum and iron concentrations, and are very infertile. Pedocals, common in arid regions, contain high concentrations of calcium carbonate.

12 Soil Orders Provided by University of Idaho

http://soils.cals.uidaho.edu/soilorders/

Munsell Notation

http://soil.gsfc.nasa.gov/pvg/munsell.htm