Biogeosciences
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Articles | Volume 23, issue 12
Articles | Volume 23, issue 12
https://doi.org/10.5194/bg-23-4343-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-23-4343-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 23, issue 12
Research article
 | 
01 Jul 2026
Research article |  | 01 Jul 2026

Quantification, spatial distribution and persistence of root-derived carbon for 12 crop species

Baptiste Hulin, Florent Massol, Simon Chollet, Francis Dohou, Stéphane Paolillo, and Samuel Abiven

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Short summary
Root-derived carbon is a major input fuelling soil organic carbon stock. However, root sampling generally omits a considerable fraction of this input. Here, we used isotopic tracing, performed on 12 crops, to quantify this carbon pool and to evaluate its persistence through an 18-month field incubation experiment. We highlighted that it represents a large share of root-derived carbon (27 %) with differences between plant families, and that its persistence in the soil might exceed that of roots.
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