Biogeosciences
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Articles | Volume 18, issue 20
Articles | Volume 18, issue 20
https://doi.org/10.5194/bg-18-5729-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-18-5729-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 18, issue 20
Research article
 | 
25 Oct 2021
Research article |  | 25 Oct 2021

The Cretaceous physiological adaptation of angiosperms to a declining pCO2: a modeling approach emulating paleo-traits

Julia Bres, Pierre Sepulchre, Nicolas Viovy, and Nicolas Vuichard

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Latest update: 30 Jun 2025
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Short summary
We emulate angiosperm paleo-traits in a land surface model according to the fossil record, and we assess this paleovegetation functioning under different pCO2 from the leaf scale to the global scale. We show that photosynthesis, transpiration and water-use efficiency are dependent on both the vegetation parameterization and the pCO2. Comparing the modeled vegetation with the fossil record, we provide clues on how to account for angiosperm evolutionary traits in paleoclimate simulations.
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