QUESTION ;why charcoal is not considered as an organic matter

though it contain a carbon?

Response Carbon is a natural component of the soil

normally composing one to five pacent of the upper soil horizon(A,E and plow horizon) below the organically enriched A-horizon natural carbon is much less in evidence generally composing less than 0.05% of the soil.This carbon consist of plant and animal residues,micro organisms,stable humus and high carbonised compound of elemental carbon(charcoal)(Ball 1964).

Charcoal is a carbon containing compound resuted from the burning of plant matter or animal bones in low oxygen.

Soil Organic Matter Natural C-containing organic materials living or dead, but excluding charcoal

Reasons as to why charcoal is not considered as an organic matter inspite of having a carbon.

Charcoal contain very little measurable readily oxdizable carbon(Walkley and Black 1934).

Charcoal are the most resistant to biochemical alteration, this means that not immune to environmental decay, this is because the carbon atoms arrange themselves into ring structures consisting 6 carbon atoms,this rings are fused together in sheets and the chemical bonds between the atoms (C=C) are strong-too strong for microbes to break them easily. At time zero the charcoal consists of loose matrix of C=C chain in the pattern of the original cellular structure

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