An alfisol is an abundant soil order, with a clay-enriched subsoil and relatively high native fertility.
An aqualf is a form of alfisol found in areas with a water table close to the surface.
In humid areas historically covered by hardwood forest in the latitudes previously glaciated. Areas like the Alleghany Plateau and Southern New England.
An albaqualf is a type of soil order classified by the USDA. It is characterized by having a natric horizon, which means the soil has a high content of sodium that can cause dispersion of clay particles. Albaqualfs are typically found in arid or semiarid regions.