Global CO2 emissions from dry inland waters share common drivers across ecosystems

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  • P. S. Keller, Helmholtz-Zentrum für Umweltforschung GmbH
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  • N. Catalán, Catalan Institute for Water Research, University of Girona
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  • D. von Schiller, Universitat Autònoma Barcelona
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  • H. P. Grossart, Leibniz-Institute of Freshwater Ecology and Inland Fisheries, University of Potsdam
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  • M. Koschorreck, Helmholtz-Zentrum für Umweltforschung GmbH
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  • B. Obrador, Universitat Autònoma Barcelona
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  • M. A. Frassl, Helmholtz-Zentrum für Umweltforschung GmbH, Griffith University Queensland
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  • N. Karakaya, Abant Izzet Baysal University
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  • N. Barros, Universidade Federal de Juiz de Fora
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  • J. A. Howitt, Charles Sturt University
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  • C. Mendoza-Lera, Irstea
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  • A. Pastor
  • G. Flaim, Istituto Agrario San Michele all'Adige
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  • R. Aben, Radboud University of Nijmegen
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  • T. Riis
  • M. I. Arce, Leibniz-Institute of Freshwater Ecology and Inland Fisheries
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  • G. Onandia, Leibniz Centre for Agricultural Landscape Research
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  • J. R. Paranaíba, Universidade Federal de Juiz de Fora
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  • A. Linkhorst, Uppsala University
  • ,
  • R. del Campo, University of Innsbruck, Universidad de Murcía
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  • A. M. Amado, Universidade Federal de Juiz de Fora, Universidade Federal do Rio Grande do Norte
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  • S. Cauvy-Fraunié, Irstea
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  • S. Brothers, Utah State University
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  • J. Condon, NSW Department of Primary Industries
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  • R. F. Mendonça, Universidade Federal de Juiz de Fora
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  • F. Reverey, Leibniz Centre for Agricultural Landscape Research
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  • E. I. Rõõm, Estonian University of Life Sciences
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  • T. Datry, Irstea
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  • F. Roland, Universidade Federal de Juiz de Fora
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  • A. Laas, Estonian University of Life Sciences
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  • U. Obertegger, Istituto Agrario San Michele all'Adige
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  • J. H. Park, Department of Environmental Science and Engineering, Ewha Womans University
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  • H. Wang, State Key Laboratory of Freshwater Ecology and Biotechnology, Chinese Academy of Sciences
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  • S. Kosten, Radboud University of Nijmegen
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  • R. Gómez, Universidad de Murcía
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  • C. Feijoó, Instituto de Ecología y Desarrollo Sustentable (INEDES, CONICET-UNLu)
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  • A. Elosegi, University of the Basque Country UPV/EHU
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  • M. M. Sánchez-Montoya, Universidad de Murcía
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  • C. M. Finlayson, Charles Sturt University, UNESCO-IHE Institute for Water Education
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  • M. Melita, CNR
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  • E. S. Oliveira Junior, Radboud University of Nijmegen, University of the State of Mato Grosso
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  • C. C. Muniz, University of the State of Mato Grosso
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  • L. Gómez-Gener, Clinical Sciences, Umea universitet, Klinisk vetenskap.
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  • C. Leigh, Griffith University Queensland, Queensland University of Technology, ARC Centre of Excellence for Mathematical & Statistical Frontiers (ACEMS), Royal Melbourne Institute of Technology University
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  • Q. Zhang, CAS - Nanjing Institute of Geography and Limnology
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  • R. Marcé, Catalan Institute for Water Research, University of Girona

Many inland waters exhibit complete or partial desiccation, or have vanished due to global change, exposing sediments to the atmosphere. Yet, data on carbon dioxide (CO2) emissions from these sediments are too scarce to upscale emissions for global estimates or to understand their fundamental drivers. Here, we present the results of a global survey covering 196 dry inland waters across diverse ecosystem types and climate zones. We show that their CO2 emissions share fundamental drivers and constitute a substantial fraction of the carbon cycled by inland waters. CO2 emissions were consistent across ecosystem types and climate zones, with local characteristics explaining much of the variability. Accounting for such emissions increases global estimates of carbon emissions from inland waters by 6% (~0.12 Pg C y−1). Our results indicate that emissions from dry inland waters represent a significant and likely increasing component of the inland waters carbon cycle.

OriginalsprogEngelsk
Artikelnummer2126
TidsskriftNature Communications
Vol/bind11
Nummer1
ISSN2041-1723
DOI
StatusUdgivet - 2020

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