Articles | Volume 22, issue 2
https://doi.org/10.5194/bg-22-455-2025
https://doi.org/10.5194/bg-22-455-2025
Research article
 | 
28 Jan 2025
Research article |  | 28 Jan 2025

How long does carbon stay in a near-pristine central Amazon forest? An empirical estimate with radiocarbon

Ingrid Chanca, Ingeborg Levin, Susan Trumbore, Kita Macario, Jost Lavric, Carlos Alberto Quesada, Alessandro Carioca de Araújo, Cléo Quaresma Dias Júnior, Hella van Asperen, Samuel Hammer, and Carlos A. Sierra

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Cited articles

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Short summary
Assessing the net carbon (C) budget of the Amazon entails considering the magnitude and timing of C absorption and losses through respiration (transit time of C). Radiocarbon-based estimates of the transit time of C in the Amazon Tall Tower Observatory (ATTO) suggest a change in the transit time from 6 ± 2 years and 18 ± 4 years within 2 years (October 2019 and December 2021, respectively). This variability indicates that only a fraction of newly fixed C can be stored for decades or longer.
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