Alfisols are soils that have an ochric epipedon (surface layer), an argillic horizon (subsoil with a higher clay content than the layers above), and a moderate to high level of bases. Alfisols range from well drained soils on ridges, and knolls to very poorly-drained soils on flats, depressions, and floodplains. Limestone sometimes occurs below the argillic horizon. Some of the more extensive Alfisols in Florida include the Boca, Felda (see photo), Malabar, Meggett, Pineda, and Riviera soils. Alfisols cover approximately 4.6 million acres.
