GEMET
General
Multilingual
Environmental
Thesaurus
couches de sol
Definition

Distinctive successive layers of soil produced by internal redistribution processes. Conventionally the layers have been divided into A, B and C horizons. The A horizon is the upper layer, containing humus and is leached and/or eluviated of many minerals. The B horizon forms a zone of deposition and is enriched with clay minerals and iron/aluminium oxides from the A layer. The C layer is the parent material for the present soil and may be partially weathered rock, transported glacial or alluvial material or an earlier soil.

Definition is not available for the current language.

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Scope note

Scope note is not available.

Concept URL: http://www.eionet.europa.eu/gemet/concept/7866