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Articles | Volume 23, issue 21
Articles | Volume 23, issue 21
https://doi.org/10.5194/bg-23-7727-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-23-7727-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 23, issue 21
Research article
 | Highlight paper
 | 
04 Nov 2026
Research article | Highlight paper |  | 04 Nov 2026

Enhanced weathering of glacial rock flour drives coupled inorganic and organic carbon sequestration in a five-year field experiment

Christiana Dietzen, Malgorzata Rizzi, Tim Jesper Suhrhoff, and Minik Thorleif Rosing

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Cited articles

Andersen, L. T., Anthonsen, K. L., and Jakobsen, P. R.: Digital Surface Geology Map of Denmark 1:25 000, GEUS, https://doi.org/10.22008/gpub/34789, 2026. 
Anthony, T. L., Jones, A. R., and Silver, W. L.: Supplementing Enhanced Weathering With Organic Amendments Accelerates the Net Climate Benefit of Soil Amendments in Rangeland Soils, AGU Advances, 6, e2024AV001480, https://doi.org/10.1029/2024AV001480, 2025. 
Basile-Doelsch, I., Balesdent, J., and Pellerin, S.: Reviews and syntheses: The mechanisms underlying carbon storage in soil, Biogeosciences, 17, 5223–5242, https://doi.org/10.5194/bg-17-5223-2020, 2020. 
Beerling, D. J., Leake, J. R., Long, S. P., Scholes, J. D., Ton, J., Nelson, P. N., Bird, M., Kantzas, E., Taylor, L. L., Sarkar, B., Kelland, M., DeLucia, E., Kantola, I., Müller, C., Rau, G., and Hansen, J.: Farming with crops and rocks to address global climate, food and soil security, Nature Plants, 4, https://doi.org/10.1038/s41477-018-0108-y, 2018. 
Beerling, D. J., Epihov, D. Z., Kantola, I. B., Masters, M. D., Reershemius, T., Planavsky, N. J., Reinhard, C. T., Jordan, J. S., Thorne, S. J., Weber, J., Val Martin, M., Freckleton, R. P., Hartley, S. E., James, R. H., Pearce, C. R., DeLucia, E. H., and Banwart, S. A.: Enhanced weathering in the US Corn Belt delivers carbon removal with agronomic benefits, P. Natil. Acad. Sci. USA, 121, e2319436121, https://doi.org/10.1073/pnas.2319436121, 2024. 
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Editorial statement
Enhanced rock weathering (ERW) is an emerging climate change mitigation strategy. Quantifying the carbon dioxide removal associated with ERW is a major challenge in the field. This study presents results from a uniquely long-term (five-year) agricultural ERW field trial and provides direct field evidence that substantial silicate weathering and associated carbon dioxide removal can occur in temperate sandy soils, such as those found in Northern Europe. It combines this with an investigation of changes in soil organic carbon, another topic of great interest in the ERW community, to better understand carbon dynamics and sequestration potential in agricultural fields.
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Short summary
Enhanced rock weathering involves spreading ground silicate rock on farmland to remove atmospheric CO₂ as the rock dissolves. Soil samples taken five years after Greenlandic glacial rock flour was applied to a Danish field showed that over half the applied material had dissolved, yet the increase in soil organic carbon was substantially greater than the estimated inorganic carbon uptake through weathering. This highlights the importance of considering both pathways when assessing climate impact.
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