Physical protection of soil carbon stocks under regenerative agriculture

Summary

This paper, published in the EGU open-access journal SOIL, investigates how regenerative agriculture practices contribute to the physical protection of soil carbon, likely through enhanced aggregate formation and mineral-organic associations. The authors appear to synthesise current understanding of the mechanisms by which reduced tillage, cover cropping, and diverse rotations — characteristic of regenerative systems — promote carbon occlusion within soil structural units. The work contributes to the evidence base on whether regenerative agriculture can deliver durable, physically stable carbon sequestration rather than labile surface accumulations.

UK applicability

The findings are broadly applicable to UK conditions, where regenerative agriculture is gaining traction under the Sustainable Farming Incentive and broader agri-environment policy; understanding the physical stability of sequestered carbon is directly relevant to UK soil carbon measurement frameworks and net-zero commitments.

Key measures

Soil organic carbon (SOC) stocks (t C/ha); aggregate stability; macro- and micro-aggregate carbon fractions; mineral-associated organic carbon (MAOC); particulate organic carbon (POC)

Outcomes reported

The study likely examined how regenerative agriculture practices influence the physical stabilisation and protection of soil organic carbon within soil aggregates and mineral-associated fractions. It probably reported on carbon stocks and the structural mechanisms that confer resistance to decomposition under regenerative management.

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