Mollisols

Authored by: P.A. McDaniel , R.G. Darmody , J.C. Bell , D.G. McGahan

Handbook of Soil Sciences Properties and Processes

Print publication date:  November  2011
Online publication date:  November  2011

Print ISBN: 9781439803059
eBook ISBN: 9781439803066
Adobe ISBN:

10.1201/b11267-63

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Abstract

Mollisols are generally characterized as soils with thick, dark surface horizons (mollic epipedons) resulting from organic C incorporation. The terms mollic and Mollisol are derived from the Latin mollis, that is, soft. While the soil taxon, Mollisols, is defined by an exact set of soil property criteria, these criteria arose from conceptual ideas and empirical observations of soil landscapes with thick, dark, and often fertile surface horizons. Mollisols can form under multiple environmental conditions that facilitate accumulation of organic C in the upper soil profile. Although Mollisols correspond to the Chernozem soils of the Russian and older U.S. classification systems, the Mollisol soil order includes soils that are beyond the central concept of Chernozems (Fanning and Fanning, 1989).

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