Soil organic carbon and its dynamics
Potential of carbon storage in soils
Article REF: GE1061 V1
Soil organic carbon and its dynamics
Potential of carbon storage in soils

Authors : Pierre BARRÉ, Lauric CÉCILLON

Publication date: September 10, 2019, Review date: July 23, 2025 | Lire en français

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1. Soil organic carbon and its dynamics

1.1 Definition of soil organic carbon and its quantification

Organic carbon enters the soil primarily in the form of plant litter and root exudates. These plant-derived materials are biotransformed and mineralized by soil organisms, mainly micro-organisms (bacteria and fungi). Soil organic matter (the main functions of which are presented in figure  1 ) is therefore mainly composed of living and dead biomass, decaying plant litter, and substances of microbial origin.

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