Biogeosciences
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Articles | Volume 23, issue 8
Articles | Volume 23, issue 8
https://doi.org/10.5194/bg-23-2729-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-23-2729-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 23, issue 8
Research article
 | 
21 Apr 2026
Research article |  | 21 Apr 2026

Soil moisture-induced changes in land carbon sink projections in CMIP6

Lea Maria Gabele, Petra Sieber, Laibao Liu, and Sonia I. Seneviratne

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Short summary
We investigate how soil moisture influences the future land carbon sink using dedicated experiments from the latest generation of Earth system models. Our results show that soil moisture strongly reduces land carbon uptake, mainly through soil moisture–atmosphere coupling. However, models disagree on the magnitude of SM impacts. The study emphasises that improving the representation of plant water stress in models is essential to reduce uncertainties in carbon cycle projections.
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