Ahorizon

Ahorizon
A horizon n.
In ABC soil, the uppermost zone of soil, containing humus; topsoil. Also called zone of leaching.

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Universalium. 2010.

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Look at other dictionaries:

  • B-horizon —    Illuvial horizon in which soluble material from the overlying Ahorizon has been deposited [16] …   Lexicon of Cave and Karst Terminology

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