Alfisol

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Soil erosion can be a problem on the steeper, upland Alfisol soils; bottom soils are mostly silty Entisols.

Ecoregions of Tennessee (EPA) 2009
Its lower crestal elevations, Alfisol soils, limestone bedrock, and sinkholes distinguish it from Ecoregion 70d; its ruggedness, lack of fragipans, and, often, natural vegetation differentiate it from the glaciated plains of Ecoregion 55d.

Ecoregions of Indiana and Ohio (EPA) 2008
Overall, however, physiography, soils, lithology, and land use are distinct from the limestone - and Alfisol-dominated agricultural plains of Ecoregions 71b, 71d, 71e, and 71l.

Ecoregions of Kentucky (EPA) 2008
In savanna climates the sequence can consist of Alfisol, Ultisol and Vertisol

1. Labour productivity and distribution 1991
In part, they are associated with Brunizem (Mollisol - USST) or Terra Roxa (Alfisol - USST), a very fertile soil.

1. Overview 1991
The soils are mostly sandy (Sols Ferrugineux Tropicaux - FS; Alfisol - USST) to clayey (Sols Ferralitiques - FS; Ultisol -

1. Overview 1991
On slopes of over 6 % one encounters Terra Roxa (Alfisol -

1. Overview 1991