Entisols

Authored by: L.C. Nordt , M.E. Collins , H.C. Monger , D.S. Fanning

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/b11267-59

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Abstract

Entisols are mineral soils that commonly exhibit minimal pedogenic alteration (Soil Survey Staff, 1999, 2010). This taxonomic order was established to preserve the early Russian “azonal” concept for soils with undeveloped profiles crossing bioclimatic zones (Smith, 1986). Typically described as A-C, A-Cr, or A-R profiles, Entisols retain many physical and chemical properties of the associated parent materials. Most A horizons classify as ochric epipedons, but with Ap horizons classifying as anthropic in some human-disturbed lands and as agric in some agricultural lands. Occasionally, Entisols have histic epipedons if affiliated with sulfidic materials in coastal regions with persistently high water tables. Highly disturbed soils from human activity may have fragments of former diagnostic horizons classified as Entisols.

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