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Alfisol
(redirected from Alfisols)

   Also found in: Wikipedia 0.01 sec.
Alfisol [′al·fə‚sōl]
(geology)
An order of soils with gray to brown surface horizons, a medium-to-high base supply, and horizons of clay accumulation.


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[FIGURE 4 OMITTED] The first class was defined using the following soil suborders as indicators of wetland presence, since they are related to hydromorphic processes: Alfisols of Suborders Aqualfs, Entisols Aquents and Fluvents, Inceptisols Aquepts, Mollisols Aquic and Aquolls and Histosols Saprists and polygons corresponding to Mollisols of Suborders Udolls and Ustolls corresponding to subgroup Aquic (Table 2).
[FIGURE 1 OMITTED] The physiographic regions of this area are Hillsdale-Lapeer Hilly Upland, South Central Rolling Plain, and Southeastern Rolling Plain with alfisols as the major soil order (Sommers 1977).
Soils are mostly of medium fertility, mainly oxisols, ultisols, and alfisols, though lands near waterways have their fertility enhanced by alluvial deposits.
 
 
 
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