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  • Granath, GustafUppsala universitet,Växtekologi och evolution,Russian Acad Sci, Siberian Branch, Inst Soil Sci & Agrochem, Lab Biogeocenol, Novosibirsk, Russia (författare)

Environmental and taxonomic controls of carbon and oxygen stable isotope composition in Sphagnum across broad climatic and geographic ranges

  • Artikel/kapitelEngelska2018

Förlag, utgivningsår, omfång ...

  • 2018-08-29
  • Copernicus Publications,2018
  • electronicrdacarrier

Nummerbeteckningar

  • LIBRIS-ID:oai:DiVA.org:umu-151779
  • https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-151779URI
  • https://doi.org/10.5194/bg-15-5189-2018DOI
  • https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-364191URI

Kompletterande språkuppgifter

  • Språk:engelska
  • Sammanfattning på:engelska

Ingår i deldatabas

Klassifikation

  • Ämneskategori:ref swepub-contenttype
  • Ämneskategori:art swepub-publicationtype

Anmärkningar

  • Rain-fed peatlands are dominated by peat mosses (Sphagnum sp.), which for their growth depend on nutrients, water and CO2 uptake from the atmosphere. As the isotopic composition of carbon (C-12(,)13) and oxygen (O-16(,)18) of these Sphagnum mosses are affected by environmental conditions, Sphagnum tissue accumulated in peat constitutes a potential long-term archive that can be used for climate reconstruction. However, there is inadequate understanding of how isotope values are influenced by environmental conditions, which restricts their current use as environmental and palaeoenvironmental indicators. Here we tested (i) to what extent C and O isotopic variation in living tissue of Sphagnum is speciesspecific and associated with local hydrological gradients, climatic gradients (evapotranspiration, temperature, precipitation) and elevation; (ii) whether the C isotopic signature can be a proxy for net primary productivity (NPP) of Sphagnum; and (iii) to what extent Sphagnum tissue delta O-18 tracks the delta O-18 isotope signature of precipitation. In total, we analysed 337 samples from 93 sites across North America and Eurasia us ing two important peat-forming Sphagnum species (S. magellanicum, S. fuscum) common to the Holarctic realm. There were differences in delta C-13 values between species. For S. magellanicum delta C-13 decreased with increasing height above the water table (HWT, R-2 = 17 %) and was positively correlated to productivity (R-2 = 7 %). Together these two variables explained 46 % of the between-site variation in delta C-13 values. For S. fuscum, productivity was the only significant predictor of delta C-13 but had low explanatory power (total R-2 = 6 %). For delta O-18 values, approximately 90 % of the variation was found between sites. Globally modelled annual delta O-18 values in precipitation explained 69 % of the between-site variation in tissue delta O-18. S. magellanicum showed lower delta O-18 enrichment than S. fuscum (-0.83 %0 lower). Elevation and climatic variables were weak predictors of tissue delta O-18 values after controlling for delta O-18 values of the precipitation. To summarize, our study provides evidence for (a) good predictability of tissue delta O-18 values from modelled annual delta O-18 values in precipitation, and (b) the possibility of relating tissue delta C-13 values to HWT and NPP, but this appears to be species-dependent. These results suggest that isotope composition can be used on a large scale for climatic reconstructions but that such models should be species-specific.

Ämnesord och genrebeteckningar

Biuppslag (personer, institutioner, konferenser, titlar ...)

  • Rydin, Håkan,1953-Uppsala universitet,Växtekologi och evolution(Swepub:uu)hakarydi (författare)
  • Baltzer, Jennifer L.Biology Department, Wilfrid Laurier University, Waterloo, Canada (författare)
  • Bengtsson, FiaUppsala universitet,Växtekologi och evolution(Swepub:uu)fiabe217 (författare)
  • Boncek, NicholasDepartment of Biological Sciences, Union College, Schenectady, NY, USA (författare)
  • Bragazza, LucaDepartment of Life Science and Biotechnologies, University of Ferrara, Ferrara, Italy; Swiss Federal Institute for Forest, Snow and Landscape Research, WSL Site Lausanne, Station 2, Lausanne, Switzerland; Ecole Polytechnique Fédérale de Lausanne EPFL, School of Architecture, Civil and Environmental Engineering ENAC, Laboratory of ecological systems ECOS, Station 2, Lausanne, Switzerland (författare)
  • Bu, Zhao-JunInstitute for Peat and Mire Research, Northeast Normal University, State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, Changchun, China; Jilin Provincial Key Laboratory for Wetland Ecological Processes and Environmental Change in the Changbai Mountains, Changchun, China (författare)
  • Caporn, Simon J. M.School of Science and the Environment, Division of Biology and Conservation Ecology, Manchester Metropolitan University, Manchester, UK,Masaryk Univ, Fac Sci, Dept Bot & Zool, Brno, Czech Republic; Mendel Univ Brno, Fac AgriSci, Dept Plant Biol, Brno, Czech Republic,No Arizona Univ, Dept Biol Sci, Ctr Ecosyst Sci & Soc Ecoss, Flagstaff, USA (författare)
  • Dorrepaal, EllenUmeå universitet,Institutionen för ekologi, miljö och geovetenskap,Arcum,Climate Impacts Research Centre, Dept. of Ecology and Environmental Science, Umeå University, Abisko, Sweden(Swepub:umu)eldo0004 (författare)
  • Galanina, OlgaInstitute of Earth Sciences, St. Petersburg State University, St. Petersburg, Russia; Komarov Botanical Institute Russian Academy of Sciences, St. Petersburg, Russia (författare)
  • Galka, MariuszLaboratory of Wetland Ecology and Monitoring & Department of Biogeography and Paleoecology, Adam Mickiewicz University in Poznan, Poznan, Polen (författare)
  • Ganeva, AnnaInstitute of Biodiversity and Ecosystem Research, Bulgarian Academy of Sciences, Sofia, Bulgaria (författare)
  • Gillikin, David P.Department of Geology, Union College, Schenectady, NY, USA (författare)
  • Goia, IrinaBabe ̧s-Bolyai University, Faculty of Biology and Geology, Department of Taxonomy and Ecology, Cluj Napoca, Romania (författare)
  • Goncharova, NadezhdaInstitute of Biology of Komi Scientific Centre of the Ural Branch of the Russian Academy of Science, Syktyvkar, Russia (författare)
  • Hájek, MichalMasaryk Univ, Fac Sci, Dept Bot & Zool, Brno, Czech Republic (författare)
  • Haraguchi, AkiraUniv Kitakyushu, Dept Biol, Kitakyushu, Fukuoka, Japan (författare)
  • Harris, Lorna I.McGill Univ, Dept Geog, Montreal, Canada (författare)
  • Humphreys, ElynCarleton Univ, Dept Geog & Environm Studies, Ottawa, Canada (författare)
  • Jiroušek, MartinUniv Southampton, Biol Sci, Southampton, Hants, England (författare)
  • Kajukalo, KatarzynaAdam Mickiewicz Univ, Lab Wetland Ecol & Monitoring, Poznan, Poland; Adam Mickiewicz Univ, Dept Biogeog & Paleoecol, Poznan, Poland,Norwegian Univ Sci & Technol, NTNU Univ Museum, Trondheim, Norway,Union Coll, Dept Biol Sci, Schenectady, NY USA (författare)
  • Karofeld, EdgarUniv Tartu, Inst Ecol & Earth Sci, Tartu, Estonia (författare)
  • Koronatova, Natalia G. (författare)
  • Kosykh, Natalia P.Russian Acad Sci, Siberian Branch, Inst Soil Sci & Agrochem, Lab Biogeocenol, Novosibirsk, Russia (författare)
  • Lamentowicz, MariuszAdam Mickiewicz Univ, Lab Wetland Ecol & Monitoring, Poznan, Poland; Adam Mickiewicz Univ, Dept Biogeog & Paleoecol, Poznan, Poland (författare)
  • Lapshina, ElenaYugra State Univ, Khanty Mansiysk, Russia (författare)
  • Limpens, JuulWageningen Univ, Plant Ecol & Nat Conservat Grp, Wageningen, Netherlands (författare)
  • Linkosalmi, MaijuFinnish Meteorol Inst, Helsinki, Finland (författare)
  • Ma, Jin-ZeNortheast Normal Univ, State Environm Protect Key Lab Wetland Ecol & Veg, Inst Peat & Mire Res, Changchun, Jilin, Peoples R China; Jilin Prov Key Lab Wetland Ecol Proc & Environm C, Changchun, Jilin, Peoples R China (författare)
  • Mauritz, MargueriteUniv Calgary, Dept Geog, Calgary, Canada; St Marys Univ, Dept Geol, Calgary, Canada,Woods Hole Res Ctr, Falmouth, USA (författare)
  • Munir, Tariq M. (författare)
  • Natali, Susan M. (författare)
  • Natcheva, RaynaBulgarian Acad Sci, Inst Biodivers & Ecosyst Res, Sofia, Bulgaria (författare)
  • Noskova, MariaRussian Acad Sci, Komarov Bot Inst, St Petersburg, Russia (författare)
  • Payne, Richard J.Univ York, Environm, York, N Yorkshire, England; Penza State Univ, Penza, Russia (författare)
  • Pilkington, KyleUnion Coll, Dept Biol Sci, Schenectady, NY USA (författare)
  • Robinson, SeanSUNY Coll Oneonta, Dept Biol, Oneonta, NY USA (författare)
  • Robroek, Bjorn J. M. (författare)
  • Rochefort, LineLaval Univ, Dept Plant Sci, Quebec City, PQ, Canada; Laval Univ, Ctr Northern Studies, Quebec City, PQ, Canada (författare)
  • Singer, DavidUniv Neuchatel, Inst Biol, Lab Soil Biodivers, Neuchatel, Switzerland; Univ Sao Paulo, Inst Biosci, Dept Zool, Sao Paulo, Brazil (författare)
  • Stenøien, Hans K. (författare)
  • Tuittila, Eeva-StiinaUniv Eastern Finland, Sch Forest Sci, Peatland & Soil Ecol Grp, Joensuu, Finland (författare)
  • Vellak, KaiUniv Tartu, Inst Ecol & Earth Sci, Tartu, Estonia (författare)
  • Verheyden, AnoukUnion Coll, Dept Geol, Schenectady, NY USA (författare)
  • MichaelWaddington, James (författare)
  • Rice, Steven K. (författare)
  • Waddington, James MichaelMcMaster Univ, Sch Geog & Earth Sci, Hamilton, Canada (författare)
  • Uppsala universitetVäxtekologi och evolution (creator_code:org_t)

Sammanhörande titlar

  • Ingår i:Biogeosciences: Copernicus Publications15:16, s. 5189-52021726-41701726-4189

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