Articles | Volume 22, issue 23
https://doi.org/10.5194/bg-22-7455-2025
https://doi.org/10.5194/bg-22-7455-2025
Research article
 | 
01 Dec 2025
Research article |  | 01 Dec 2025

Unrecognised water limitation is a main source of uncertainty for models of terrestrial photosynthesis

Samantha Biegel, Konrad Schindler, and Benjamin D. Stocker

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Short summary
Our work addresses the predictability of carbon absorption by ecosystems across the globe, particularly in dry regions. We compare 3 different models, including a deep learning model that can learn from past environmental conditions, and show that this helps improve predictions. Still, challenges remain in dry areas due to varying vulnerabilities to drought. As drought conditions intensify globally, it's crucial to understand the varying impacts on ecosystem function.
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