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Low-intensity management promotes the soil priming effect in European agroecosystems


Abstract

Agricultural management is critical in shaping soil carbon (C) stocks, pools and fluxes. The soil priming effect (PE) is known as a key component of the global C cycle that reflects alterations in soil organic carbon (SOC) mineralization induced by fresh C inputs. Here, we show that priming can help to predict soil C content across European Long-Term Experiments (LTEs), a result which was maintained at continental and global scales. Results reveal that lower-intensity management significantly enhances PE in soils from European croplands. Conversely, high-intensity management led to lower or even negative PE. Management intensity influences PE directly through alterations in SOC and indirectly by modifying aggregates stability and microbial biomass. Both fertilization and tillage affect PE, with soils under organic fertilization and no-tillage showing higher values of PE. These findings advance our understanding of the long-term impacts of agricultural management on the C cycle at the continental scale.

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Data availability

The data used in this study have been deposited in figshare at https://doi.org/10.6084/m9.figshare.31429163 and https://doi.org/10.6084/m9.figshare.31429322.

Code availability

The code used in this study has been deposited in figshare at https://doi.org/10.6084/m9.figshare.31568962.

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Acknowledgments

This study is part of the EJP Soil MINOTAUR network. EJP SOIL has received funding from the European Union’s Horizon 2020 research and innovation program: Grant agreement No 862695. This study is part of the project PID2024-160074NB-I00 funded by MCIN/AEI /10.13039/501100011033 by FEDER, UE. Authors acknowledge funding from “Programa Regional de Fomento de la Investigación Científica y Técnica—Convocatoria de ayudas a Grupos de Excelencia de la Fundación Séneca 2026–2029. FSRM/10.13039/100007801(23015/GERM/25). España”. Part of this research was funded by the National Natural Science Foundation of China (Grant No. U22A20612). Part of this research is funded by the AGROALNEXT program, funded by MCIN with funds from NextGenerationEU (PRTR-C17.I1) and Seneca Foundation with funds from “Comunidad Autonoma de la Region de Murcia” (CARM). The management and maintenance of the Swedish LTEs was funded by the Faculty of Natural Resources and Agricultural Sciences of the Swedish University of Agricultural Sciences (SLU). Maria Viketoft was partly funded by the SLU Center for Biological Control (CBC). Thanks to Pan Yin for assistance in experimental data processing. X.H.D acknowledges support from the China Scholarship Council (CSC). J.A.S. acknowledges the support of the grant RYC2023-044125-I funded by MICIU/AEI/10.13039/501100011033 and by ESF+.

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F.B and X.D conceived the study and obtained funding. X.D., A.V., M.P., J.A.S., W.Z., M.d.B., and G.Z. conducted experimental analyses and processed data and models. C.A. and S.M. provided funding. C.A., E.T., I.S., M.A.P., F.V., S.D.D., C.T., A.P.F., A.E., Tv.V., M.F.D., M.v.H., R.W., G.P., I.D., J.Z., R.M., M.S., A.G., C.R., R.M., M.V., and M.B provided soil samples and background data for modeling. F.B and X.D. wrote the manuscript with inputs from all co-authors. All coauthors contributed to the writing and review.

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Felipe Bastida.

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Dong, X., Vera, A., Patiño, M. et al. Low-intensity management promotes the soil priming effect in European agroecosystems.
Nat Commun (2026). https://doi.org/10.1038/s41467-026-71255-9

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