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FIG. 1. Projected possibilities for augmenting C sequestration in soils through a greater understanding of biogeochemical mechanisms within micropores of soil aggregates that could be realized in management operations. Greater knowledge of the relationships among flux rates, surface adsorption, hysteretic water capacities, pore blockage, and the bioavailability of organic compounds provide additional long-term soil C sequestration potentials within structured soils. These projected 150 and 200% increases could be realized with augmented biomass resources for increased soil organic matter accompanied by more stable soil aggregates containing greater microporosities that sequester higher quantities of C protected from microbial mineralization.
