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Ecosystem fluxes during drought and recovery in an experimental forest
JournalArticle (Originalarbeit in einer wissenschaftlichen Zeitschrift)
ID 4636517
Author(s) Werner, Christiane; Meredith, Laura K.; Ladd, S. Nemiah; Ingrisch, Johannes; Kuebert, Angelika; van Haren, Joost; Bahn, Michael; Bailey, Kinzie; Bamberger, Ines; Beyer, Matthias; Blomdahl, Daniel; Byron, Joseph; Daber, Erik; Deleeuw, Jason; Dippold, Michaela A.; Fudyma, Jane; Gil-Loaiza, Juliana; Honeker, Linnea K.; Hu, Jia; Huang, Jianbei; Kluepfel, Thomas; Krechmer, Jordan; Kreuzwieser, Juergen; Kuehnhammer, Kathrin; Lehmann, Marco M.; Meeran, Kathiravan; Misztal, Pawel K.; Ng, Wei-Ren; Pfannerstill, Eva; Pugliese, Giovanni; Purser, Gemma; Roscioli, Joseph; Shi, Lingling; Tfaily, Malak; Williams, Jonathan
Author(s) at UniBasel Ladd, Sarah Nemiah
Year 2021
Title Ecosystem fluxes during drought and recovery in an experimental forest
Journal Science
Volume 374
Number 6574
Pages / Article-Number 1514-1518
Abstract Severe droughts endanger ecosystem functioning worldwide. We investigated how drought affects carbon and water fluxes as well as soil-plant-atmosphere interactions by tracing 13 CO 2 and deep water 2 H 2 O label pulses and volatile organic compounds (VOCs) in an enclosed experimental rainforest. Ecosystem dynamics were driven by different plant functional group responses to drought. Drought-sensitive canopy trees dominated total fluxes but also exhibited the strongest response to topsoil drying. Although all canopy-forming trees had access to deep water, these reserves were spared until late in the drought. Belowground carbon transport was slowed, yet allocation of fresh carbon to VOCs remained high. Atmospheric VOC composition reflected increasing stress responses and dynamic soil-plant-atmosphere interactions, potentially affecting atmospheric chemistry and climate feedbacks. These interactions and distinct functional group strategies thus modulate drought impacts and ecosystem susceptibility to climate change.
ISSN/ISBN 0036-8075
Full Text on edoc No
Digital Object Identifier DOI 10.1126/science.abj6789
PubMed ID
ISI-Number 000733380100056
Document type (ISI) Journal Article

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