Biogeosciences
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Articles | Volume 23, issue 18
Articles | Volume 23, issue 18
https://doi.org/10.5194/bg-23-6521-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-23-6521-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 23, issue 18
Research article
 | 
18 Sep 2026
Research article |  | 18 Sep 2026

Introducing shrubs enhances the representation of high-latitude vegetation and carbon cycling in the ORCHIDEE land surface model

Anna Kirchner, Efrén López-Blanco, Vladislav Bastrikov, Sebastiaan Luyssaert, Philippe Peylin, and Anne Sofie Lansø

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Short summary
Shrubs need to be represented in climate models, because they shape the response of high-latitude regions to climate change. We added three shrub types to the ORCHIDEE (Organising Carbon and Hydrology In Dynamic Ecosystems) land surface model using Arctic observations. Including shrubs reduces simulated biomass and carbon uptake, improving model agreement with measurements. This is a simple, observation-based approach and an important step towards better representations of shrubs and their climate change response in models.
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