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  • Zona, DonatellaUniversity of Sheffield,San Diego State University (author)

Earlier snowmelt may lead to late season declines in plant productivity and carbon sequestration in Arctic tundra ecosystems

  • Article/chapterEnglish2022

Publisher, publication year, extent ...

  • 2022-03-21
  • Springer Science and Business Media LLC,2022

Numbers

  • LIBRIS-ID:oai:lup.lub.lu.se:96be74c7-9c20-41f4-9019-d1ae64016d6f
  • https://lup.lub.lu.se/record/96be74c7-9c20-41f4-9019-d1ae64016d6fURI
  • https://doi.org/10.1038/s41598-022-07561-1DOI

Supplementary language notes

  • Language:English
  • Summary in:English

Part of subdatabase

Classification

  • Subject category:art swepub-publicationtype
  • Subject category:ref swepub-contenttype

Notes

  • Arctic warming is affecting snow cover and soil hydrology, with consequences for carbon sequestration in tundra ecosystems. The scarcity of observations in the Arctic has limited our understanding of the impact of covarying environmental drivers on the carbon balance of tundra ecosystems. In this study, we address some of these uncertainties through a novel record of 119 site-years of summer data from eddy covariance towers representing dominant tundra vegetation types located on continuous permafrost in the Arctic. Here we found that earlier snowmelt was associated with more tundra net CO2 sequestration and higher gross primary productivity (GPP) only in June and July, but with lower net carbon sequestration and lower GPP in August. Although higher evapotranspiration (ET) can result in soil drying with the progression of the summer, we did not find significantly lower soil moisture with earlier snowmelt, nor evidence that water stress affected GPP in the late growing season. Our results suggest that the expected increased CO2 sequestration arising from Arctic warming and the associated increase in growing season length may not materialize if tundra ecosystems are not able to continue sequestering CO2 later in the season.

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • Lafleur, Peter M.Trent University (author)
  • Hufkens, KoenINRA Bordeaux-Aquitaine,Ghent University (author)
  • Bailey, BarbaraSan Diego State University (author)
  • Gioli, BeniaminoCNR Istituto per le Tecnologie Applicate ai Beni Culturali (CNR-ITABC) (author)
  • Burba, GeorgeLI-COR Biosciences, Inc. (author)
  • Goodrich, Jordan P.University of Waikato (author)
  • Liljedahl, Anna K.University of Alaska Fairbanks (author)
  • Euskirchen, Eugénie S.University of Alaska Fairbanks (author)
  • Watts, Jennifer D.University of Montana (author)
  • Farina, Mary (author)
  • Kimball, John S.University of Montana (author)
  • Heimann, MartinMax Planck Institute for Biogeochemistry,University of Helsinki (author)
  • Göckede, MathiasMax Planck Institute for Biogeochemistry (author)
  • Pallandt, MartijnMax Planck Institute for Biogeochemistry (author)
  • Christensen, Torben R.University of Oulu,Aarhus University(Swepub:lu)ekol-tch (author)
  • Mastepanov, MikhailAarhus University,University of Oulu(Swepub:lu)ple-mma (author)
  • López-Blanco, EfrénGreenland Institute of Natural Resources,Aarhus University (author)
  • Jackowicz-Korczynski, MarcinLund University,Lunds universitet,Institutionen för naturgeografi och ekosystemvetenskap,Naturvetenskapliga fakulteten,Dept of Physical Geography and Ecosystem Science,Faculty of Science,Aarhus University(Swepub:lu)nate-mjs (author)
  • Dolman, Albertus J.Royal Netherlands Institute of Sea Research (author)
  • Marchesini, Luca BelelliRUDN University,Edmund Mach Foundation (author)
  • Commane, RoisinLamont-Doherty Earth Observatory (author)
  • Wofsy, Steven C.Harvard John A. Paulson School of Engineering and Applied Sciences (author)
  • Miller, Charles E.California Institute of Technology (author)
  • Lipson, David A.San Diego State University (author)
  • Hashemi, JoshSan Diego State University (author)
  • Arndt, Kyle A.University of New Hampshire, Durham (author)
  • Kutzbach, LarsUniversity of Hamburg (author)
  • Holl, DavidUniversity of Hamburg (author)
  • Boike, JuliaHumboldt University of Berlin,Alfred-Wegener Institute, Helmholtz Center for Polar and Marine Research, Bremerhaven (author)
  • Wille, ChristianGFZ German Research Centre for Geosciences (author)
  • Sachs, TorstenGFZ German Research Centre for Geosciences (author)
  • Kalhori, AramGFZ German Research Centre for Geosciences (author)
  • Song, XiaSan Diego State University (author)
  • Xu, XiaofengSan Diego State University (author)
  • Humphreys, Elyn R.Carleton University (author)
  • Koven, Charles D.Lawrence Berkeley National Laboratory (author)
  • Sonnentag, OliverUniversity Of Quebec In Montreal(Swepub:lu)ol3828so (author)
  • Meyer, GesaUniversity Of Quebec In Montreal (author)
  • Gosselin, Gabriel H.University Of Quebec In Montreal (author)
  • Marsh, PhilipWilfrid Laurier University (author)
  • Oechel, Walter C.San Diego State University,University of Exeter (author)
  • University of SheffieldSan Diego State University (creator_code:org_t)

Related titles

  • In:Scientific Reports: Springer Science and Business Media LLC12:12045-2322

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