Glossary

 

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Biodiversity

The diversity of living organisms in any one place.


Biomass

The quantity of living material present at a given time within a given area.


Biota

A soil formation factor that describes living organisms in a particular region and at a particular time. It includes vegetation, microbes, soil animals, and human beings.


Black Earth

Term synonymous with Chernozem used (e.g. in Australia) to describe self-mulching black clays.


Bog

Wetland that has no significant inflows or outflows, supports acidophilic mosses, particularly Sphagnum and in which peat is accumulating. Similar to: fen, marsh, pocosin, swamp, and wetland.


Boulder clay

Unstratified glacial deposits laid down directly beneath the ice or dropped from the surface as the ice melted; boulder clay and till are synonymous terms for this unsorted material which ranges from rock flour to rocks and boulders of great size, according to the nature of the bedrock.



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