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Articles | Volume 23, issue 15
Articles | Volume 23, issue 15
https://doi.org/10.5194/bg-23-5593-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-23-5593-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 23, issue 15
Research article
 | 
13 Aug 2026
Research article |  | 13 Aug 2026

Uncertainty in Land Carbon Fluxes Simulated by CMIP6 Models from Treatments of Crop Distributions and Photosynthetic Pathways

Joseph Ovwemuvwose, Ian Colin Prentice, and Heather Graven

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Short summary
This work examines the roles of cropland representation and the treatment of photosynthetic pathways in the uncertainties of carbon flux simulations in Earth System Models (ESMs). Our results show that reducing these uncertainties will require improvements in the representation of C3 and C4 crops and natural vegetation area coverage, as well as the theories underpinning the simulation of their carbon uptake processes, specifically the implementation of photosynthetic pathways.
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