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NAL Agricultural Thesaurus
U.S. Department of Agriculture

Concept Breadcrumbs

Fields of Study > soil science > soil > soil morphological features > soil horizons > hardpans
Fields of Study > soil science > soil morphology > soil morphological features > soil horizons > hardpans
Preferred Term:

hardpans

Definition:
A hardened soil layer in the lower A or in the B horizon caused by cementation of soil particles with organic matter or with materials such as silica or calcium carbonate. The hardness does not change appreciably with changes in moisture content, and pieces of the hard layer do not disintegrate in water.
Concept Schemes:
NALT Full
Broader Concept:
soil horizons
Narrower Concepts:
URI:
https://lod.nal.usda.gov/nalt/213766
Download this Concept:
RDF/XMLCreated 2014-04-07, last modified 2017-08-16