TundraFlux: a database of ecosystem respiration with biotic and abiotic metadata from Arctic and alpine tundra warming experiments

Abstract. Empirical in-situ measurements of ecosystem carbon dioxide respiration (Reco) in high-latitude ecosystems remain limited, yet they are essential for understanding how tundra carbon cycling responds to climate warming across different environmental contexts and for reducing uncertainties in upscaled carbon budgets and carbon–climate feedbacks. Here, we present the TundraFlux Database, which to date is the most comprehensive synthesis of tundra Reco responses to experimental warming. The database compiles over 24 000 daily-aggregated in-situ Reco measurements from control and warmed plots with open-top chambers at 64 Arctic and alpine tundra sites across 12 countries. By coupling Reco measurements with extensive metadata on climate, vegetation, and soil characteristics, the TundraFlux Database enables the integration of field-scale ecological processes into large-scale models, offering new opportunities to refine global carbon budgets and test predictions of tundra ecosystem responses to warming. Open access to the TundraFlux Database will empower the research community to better quantify and predict how warming alters carbon cycling in Arctic and alpine tundra ecosystems. The data can be accessed on Zenodo (https://doi.org/10.5281/zenodo.17976235, Schwieger, 2026a).

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Journal
Earth system science data
Published
2026-07-16
DOI
https://doi.org/10.5194/essd-18-4965-2026
Primary Topic
Climate change and permafrost
Type
article
Field-Weighted Citation Impact
0.00

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article

TundraFlux: a database of ecosystem respiration with biotic and abiotic metadata from Arctic and alpine tundra warming experiments

Joseph Gaudard, Christina Biasi, Zhen‐Huan Guan, Birgitte Kortegaard Danielsen et al.
Earth system science data
Climate change and permafrost
article

TundraFlux: a database of ecosystem respiration with biotic and abiotic metadata from Arctic and alpine tundra warming experiments

Joseph Gaudard, Christina Biasi, Zhen‐Huan Guan, Birgitte Kortegaard Danielsen, Simone I. Lang, Ellen Dorrepaal, Matteo Petit Bon, Gus Jespersen, Patrick Faubert, Yuanhe Yang, Jón Guðmundsson, Eero Myrsky, Richard E. Lamprecht, Thomas C. Parker, Hanna Böhner, Henni Ylänne, Bo Elberling, Carolina Voigt, Sofie Sjögersten, Ned Fetcher, Mats P. Björkman, MARK HOVENDEN, Vigdis Vandvik, Marion Nyberg, Robert G. Björk, Hanna Lee, Emily Pickering Pedersen, Alessandro Petraglia, Michele Carbognani, Riikka Rinnan, Maija E. Marushchak, Ludovica D’Imperio, Sybryn L. Maes, Jin He, Mathilde Le Moullec, Ingvild Ryde, Hlynur Óskarsson, Maria Strack, Brage Bremset Hansen, Sarah Schwieger, Tariq Muhammad Munir, Ji Young Jung, Cecilie Skov Nielsen, Josefine Walz, Elisabeth J. Cooper, J. M. Welker, Konstantin Gavazov, Inge Althuizen, Steven F. Oberbauer, Sari Stark, Giorgio Chiari, Siri Vatsø Haugum, Sylvia Toet, Alejandro Salazar, Kevin K. Newsham, T'ai G W Forte, Bowen Li, Hans Cornelissen, Caitlin Hicks Pries, Niels M. Schmidt, Jan Dietrich, Nynne R. Ravn, Richard Van Logtestijn, Heidi Rodenhizer, Paulo Olivas, Katrine Raundrup, Casper T. Christiansen, Jianwu Tang, Ted Schuur, Maria Väisänen, Anders Michelsen, Ingibjörg S. Jónsdóttir, Judith M. Sarneel, Olga Khitun, Anne Tolvanen, Joel White, Johan Olofsson
article en

Abstract

Abstract. Empirical in-situ measurements of ecosystem carbon dioxide respiration (Reco) in high-latitude ecosystems remain limited, yet they are essential for understanding how tundra carbon cycling responds to climate warming across different environmental contexts and for reducing uncertainties in upscaled carbon budgets and carbon–climate feedbacks. Here, we present the TundraFlux Database, which to date is the most comprehensive synthesis of tundra Reco responses to experimental warming. The database compiles over 24 000 daily-aggregated in-situ Reco measurements from control and warmed plots with open-top chambers at 64 Arctic and alpine tundra sites across 12 countries. By coupling Reco measurements with extensive metadata on climate, vegetation, and soil characteristics, the TundraFlux Database enables the integration of field-scale ecological processes into large-scale models, offering new opportunities to refine global carbon budgets and test predictions of tundra ecosystem responses to warming. Open access to the TundraFlux Database will empower the research community to better quantify and predict how warming alters carbon cycling in Arctic and alpine tundra ecosystems. The data can be accessed on Zenodo (https://doi.org/10.5281/zenodo.17976235, Schwieger, 2026a).

Earth system science dataVol. 18(7)
Université du Québec à Chicoutimi (CA), University of Copenhagen (DK), University of Parma (IT), Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung (DE), University of Tasmania (AU), Woodwell Climate Research Center (US), British Antarctic Survey (GB), University of Helsinki (FI), Marine Biological Laboratory (US), University of Nottingham (GB), Loughborough University (GB), University of Alaska Anchorage (US), University of Waterloo (CA), James Hutton Institute (GB), Universität Hamburg (DE), Wilkes University (US), University of Iceland (IS), University of Calgary (CA), University of Eastern Finland (FI), Universität Innsbruck (AT), Florida International University (US), Peking University (CN), Northern Arizona University (US), Aarhus University (DK), Norwegian University of Science and Technology (NO), Bjerknes Centre for Climate Research (NO), Swiss Federal Institute for Forest, Snow and Landscape Research (CH), Beijing Botanical Garden (CN), Abisko Scientific Research Station (SE), Natural Resources Institute Finland (FI), Korea Polar Research Institute (KR), Centre for Arctic Gas Hydrate, Environment and Climate (NO), NORCE Research AS (NO), Grønlands Naturinstitut (GL), Innovation Center Iceland (IS), AGRF Ltd (AU), Institute of Botany (CN), University of the Arctic, University of Bergen (NO), University Centre in Svalbard (SJ), University of York (GB), China Agricultural University (CN), Lanzhou University (CN), UiT The Arctic University of Norway (NO), Vrije Universiteit Amsterdam (NL), University of Gothenburg (SE), Umeå University (SE), University of Lapland (FI), Technical University of Denmark (DK), University of Oulu (FI), KU Leuven (BE)
National Science Foundation, U.S. Department of Energy, National Research Foundation, Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung, Danmarks Grundforskningsfond, National Natural Science Foundation of China, Svenska Forskningsrådet Formas, Academy of Finland, Fonds Wetenschappelijk Onderzoek, National Research Foundation of Korea, Korea Polar Research Institute, Vetenskapsrådet, Norges Forskningsråd, Rannís, Australian Research Council
Climate action
Openalex Percentile: Top 12%
Climate change and permafrost
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