A more recent version of this item is in the workflow of a user.
Drought-induced peatland carbon loss exacerbated by elevated CO2 and warming
METADATA ONLY
Loading...
Author / Producer
Date
2025-10-23
Publication Type
Journal Article
ETH Bibliography
yes
Citations
Altmetric
METADATA ONLY
Data
Rights / License
Abstract
Extreme drought events are predicted to increase with climate change, yet their impacts on ecosystem carbon dynamics under warming and elevated carbon dioxide (eCO2) remain unclear. In a peatland experiment with five warming treatments each under ambient carbon dioxide (aCO2) and eCO2 (+500 parts per million), a 2-month extreme drought in 2021 reduced net ecosystem productivity by 444.0 ± 65.8 and 736.6 ± 57.8 grams of carbon per square meter at +9°C under aCO2 and eCO2, respectively—228.6 ± 56.8% and 381.9 ± 83.4% of the reduction at +0°C under aCO2. This exacerbation was driven by warming-induced water table decline, prolonged low water tables, and CO2-enhanced substrate availability through increased plant carbon inputs. Findings indicate that future climate will greatly amplify carbon loss during extreme drought, reinforcing positive carbon-climate feedbacks.
Permanent link
Publication status
published
External links
Editor
Book title
Journal / series
Volume
390 (6771)
Pages / Article No.
367 - 370
Publisher
AAAS
Event
Edition / version
Methods
Software
Geographic location
Date collected
Date created
Subject
Organisational unit
03648 - Buchmann, Nina / Buchmann, Nina