Alfisols: "al" for aluminum, "f" for iron (chemical symbol Fe), two prominent elements in these soils

-Distinguished by a subsurface clay horizon and a medium to generous supply of basic cations, plant nutrients, and water. The epipedon is light colored and is considred an ordinary eluviated horizon. Also lacks diagnostic features.

-Associated with transitional environments and are less characteristic of regions that are particularly hot or cold or wet or dry

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