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

Gustaf Granath, Håkan Rydin, Jennifer L. Baltzer, Fia Bengtsson, Nicholas Boncek, Luca Bragazza, Zhao Jun Bu, Simon J.M. Caporn, Ellen Dorrepaal, Olga Galanina, Mariusz GaÅka, Anna Ganeva, David P. Gillikin, Irina Goia, Nadezhda Goncharova, Michal Hájek, Akira Haraguchi, Lorna I. Harris, Elyn Humphreys, Martin Jiroušek & 26 others Katarzyna KajukaÅo, Edgar Karofeld, Natalia G. Koronatova, Natalia P. Kosykh, Mariusz Lamentowicz, Elena Lapshina, Juul Limpens, Maiju Linkosalmi, Jin Ze Ma, Marguerite Mauritz, Tariq M. Munir, Susan M. Natali, Rayna Natcheva, Maria Noskova, Richard J. Payne, Kyle Pilkington, Sean Robinson, Bjorn J.M. Robroek, Line Rochefort, David Singer, Hans K. Stenøien, Eeva Stiina Tuittila, Kai Vellak, Anouk Verheyden, James Michael Waddington, Steven K. Rice

Research output: Contribution to journalArticleAcademicpeer-review

2 Citations (Scopus)

Abstract

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 (12,13C) and oxygen (16,18O) 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 species-specific 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 δ18O tracks the δ18O isotope signature of precipitation. In total, we analysed 337 samples from 93 sites across North America and Eurasia using two important peat-forming Sphagnum species (S. magellanicum, S. fuscum) common to the Holarctic realm. There were differences in δ13C values between species. For S. magellanicum δ13C decreased with increasing height above the water table (HWT, R2 =17%) and was positively correlated to productivity (R2 = 7%). Together these two variables explained 46% of the between-site variation in δ13C values. For S. fuscum, productivity was the only significant predictor of δ13C but had low explanatory power (total R2 = 6%). For δ18O values, approximately 90% of the variation was found between sites. Globally modelled annual δ18O values in precipitation explained 69% of the between-site variation in tissue δ18O. S. magellanicum showed lower δ18O enrichment than S. fuscum (-0.83 ‰ lower). Elevation and climatic variables were weak predictors of tissue δ18O values after controlling for δ18O values of the precipitation. To summarize, our study provides evidence for (a) good predictability of tissue δ18O values from modelled annual δ18O values in precipitation, and (b) the possibility of relating tissue δ13C 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.

LanguageEnglish
Pages5189-5202
JournalBiogeosciences
Volume15
Issue number16
DOIs
Publication statusPublished - 29 Aug 2018

Fingerprint

Sphagnum
stable isotopes
oxygen isotope
stable isotope
oxygen
carbon
Sphagnum magellanicum
peat
productivity
isotopes
isotope
moss
primary productivity
environmental conditions
environmental factors
tissue
peatland
Eurasia
peatlands
tissues

Cite this

Granath, Gustaf ; Rydin, Håkan ; Baltzer, Jennifer L. ; Bengtsson, Fia ; Boncek, Nicholas ; Bragazza, Luca ; Bu, Zhao Jun ; Caporn, Simon J.M. ; Dorrepaal, Ellen ; Galanina, Olga ; GaÅka, Mariusz ; Ganeva, Anna ; Gillikin, David P. ; Goia, Irina ; Goncharova, Nadezhda ; Hájek, Michal ; Haraguchi, Akira ; Harris, Lorna I. ; Humphreys, Elyn ; Jiroušek, Martin ; KajukaÅo, Katarzyna ; Karofeld, Edgar ; Koronatova, Natalia G. ; Kosykh, Natalia P. ; Lamentowicz, Mariusz ; Lapshina, Elena ; Limpens, Juul ; Linkosalmi, Maiju ; Ma, Jin Ze ; Mauritz, Marguerite ; Munir, Tariq M. ; Natali, Susan M. ; Natcheva, Rayna ; Noskova, Maria ; Payne, Richard J. ; Pilkington, Kyle ; Robinson, Sean ; Robroek, Bjorn J.M. ; Rochefort, Line ; Singer, David ; Stenøien, Hans K. ; Tuittila, Eeva Stiina ; Vellak, Kai ; Verheyden, Anouk ; Michael Waddington, James ; Rice, Steven K. / Environmental and taxonomic controls of carbon and oxygen stable isotope composition in Sphagnum across broad climatic and geographic ranges. In: Biogeosciences. 2018 ; Vol. 15, No. 16. pp. 5189-5202.
@article{41d2229e832e4a6babc2bffabd0c3eeb,
title = "Environmental and taxonomic controls of carbon and oxygen stable isotope composition in Sphagnum across broad climatic and geographic ranges",
abstract = "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 (12,13C) and oxygen (16,18O) 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 species-specific 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 δ18O tracks the δ18O isotope signature of precipitation. In total, we analysed 337 samples from 93 sites across North America and Eurasia using two important peat-forming Sphagnum species (S. magellanicum, S. fuscum) common to the Holarctic realm. There were differences in δ13C values between species. For S. magellanicum δ13C decreased with increasing height above the water table (HWT, R2 =17{\%}) and was positively correlated to productivity (R2 = 7{\%}). Together these two variables explained 46{\%} of the between-site variation in δ13C values. For S. fuscum, productivity was the only significant predictor of δ13C but had low explanatory power (total R2 = 6{\%}). For δ18O values, approximately 90{\%} of the variation was found between sites. Globally modelled annual δ18O values in precipitation explained 69{\%} of the between-site variation in tissue δ18O. S. magellanicum showed lower δ18O enrichment than S. fuscum (-0.83 ‰ lower). Elevation and climatic variables were weak predictors of tissue δ18O values after controlling for δ18O values of the precipitation. To summarize, our study provides evidence for (a) good predictability of tissue δ18O values from modelled annual δ18O values in precipitation, and (b) the possibility of relating tissue δ13C 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.",
author = "Gustaf Granath and H{\aa}kan Rydin and Baltzer, {Jennifer L.} and Fia Bengtsson and Nicholas Boncek and Luca Bragazza and Bu, {Zhao Jun} and Caporn, {Simon J.M.} and Ellen Dorrepaal and Olga Galanina and Mariusz Ga{\AA}ka and Anna Ganeva and Gillikin, {David P.} and Irina Goia and Nadezhda Goncharova and Michal H{\'a}jek and Akira Haraguchi and Harris, {Lorna I.} and Elyn Humphreys and Martin Jiroušek and Katarzyna Kajuka{\AA}o and Edgar Karofeld and Koronatova, {Natalia G.} and Kosykh, {Natalia P.} and Mariusz Lamentowicz and Elena Lapshina and Juul Limpens and Maiju Linkosalmi and Ma, {Jin Ze} and Marguerite Mauritz and Munir, {Tariq M.} and Natali, {Susan M.} and Rayna Natcheva and Maria Noskova and Payne, {Richard J.} and Kyle Pilkington and Sean Robinson and Robroek, {Bjorn J.M.} and Line Rochefort and David Singer and Sten{\o}ien, {Hans K.} and Tuittila, {Eeva Stiina} and Kai Vellak and Anouk Verheyden and {Michael Waddington}, James and Rice, {Steven K.}",
year = "2018",
month = "8",
day = "29",
doi = "10.5194/bg-15-5189-2018",
language = "English",
volume = "15",
pages = "5189--5202",
journal = "Biogeosciences",
issn = "1726-4170",
publisher = "European Geosciences Union",
number = "16",

}

Granath, G, Rydin, H, Baltzer, JL, Bengtsson, F, Boncek, N, Bragazza, L, Bu, ZJ, Caporn, SJM, Dorrepaal, E, Galanina, O, GaÅka, M, Ganeva, A, Gillikin, DP, Goia, I, Goncharova, N, Hájek, M, Haraguchi, A, Harris, LI, Humphreys, E, Jiroušek, M, KajukaÅo, K, Karofeld, E, Koronatova, NG, Kosykh, NP, Lamentowicz, M, Lapshina, E, Limpens, J, Linkosalmi, M, Ma, JZ, Mauritz, M, Munir, TM, Natali, SM, Natcheva, R, Noskova, M, Payne, RJ, Pilkington, K, Robinson, S, Robroek, BJM, Rochefort, L, Singer, D, Stenøien, HK, Tuittila, ES, Vellak, K, Verheyden, A, Michael Waddington, J & Rice, SK 2018, 'Environmental and taxonomic controls of carbon and oxygen stable isotope composition in Sphagnum across broad climatic and geographic ranges', Biogeosciences, vol. 15, no. 16, pp. 5189-5202. https://doi.org/10.5194/bg-15-5189-2018

Environmental and taxonomic controls of carbon and oxygen stable isotope composition in Sphagnum across broad climatic and geographic ranges. / Granath, Gustaf; Rydin, Håkan; Baltzer, Jennifer L.; Bengtsson, Fia; Boncek, Nicholas; Bragazza, Luca; Bu, Zhao Jun; Caporn, Simon J.M.; Dorrepaal, Ellen; Galanina, Olga; GaÅka, Mariusz; Ganeva, Anna; Gillikin, David P.; Goia, Irina; Goncharova, Nadezhda; Hájek, Michal; Haraguchi, Akira; Harris, Lorna I.; Humphreys, Elyn; Jiroušek, Martin; KajukaÅo, Katarzyna; Karofeld, Edgar; Koronatova, Natalia G.; Kosykh, Natalia P.; Lamentowicz, Mariusz; Lapshina, Elena; Limpens, Juul; Linkosalmi, Maiju; Ma, Jin Ze; Mauritz, Marguerite; Munir, Tariq M.; Natali, Susan M.; Natcheva, Rayna; Noskova, Maria; Payne, Richard J.; Pilkington, Kyle; Robinson, Sean; Robroek, Bjorn J.M.; Rochefort, Line; Singer, David; Stenøien, Hans K.; Tuittila, Eeva Stiina; Vellak, Kai; Verheyden, Anouk; Michael Waddington, James; Rice, Steven K.

In: Biogeosciences, Vol. 15, No. 16, 29.08.2018, p. 5189-5202.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Environmental and taxonomic controls of carbon and oxygen stable isotope composition in Sphagnum across broad climatic and geographic ranges

AU - Granath, Gustaf

AU - Rydin, Håkan

AU - Baltzer, Jennifer L.

AU - Bengtsson, Fia

AU - Boncek, Nicholas

AU - Bragazza, Luca

AU - Bu, Zhao Jun

AU - Caporn, Simon J.M.

AU - Dorrepaal, Ellen

AU - Galanina, Olga

AU - GaÅka, Mariusz

AU - Ganeva, Anna

AU - Gillikin, David P.

AU - Goia, Irina

AU - Goncharova, Nadezhda

AU - Hájek, Michal

AU - Haraguchi, Akira

AU - Harris, Lorna I.

AU - Humphreys, Elyn

AU - Jiroušek, Martin

AU - KajukaÅo, Katarzyna

AU - Karofeld, Edgar

AU - Koronatova, Natalia G.

AU - Kosykh, Natalia P.

AU - Lamentowicz, Mariusz

AU - Lapshina, Elena

AU - Limpens, Juul

AU - Linkosalmi, Maiju

AU - Ma, Jin Ze

AU - Mauritz, Marguerite

AU - Munir, Tariq M.

AU - Natali, Susan M.

AU - Natcheva, Rayna

AU - Noskova, Maria

AU - Payne, Richard J.

AU - Pilkington, Kyle

AU - Robinson, Sean

AU - Robroek, Bjorn J.M.

AU - Rochefort, Line

AU - Singer, David

AU - Stenøien, Hans K.

AU - Tuittila, Eeva Stiina

AU - Vellak, Kai

AU - Verheyden, Anouk

AU - Michael Waddington, James

AU - Rice, Steven K.

PY - 2018/8/29

Y1 - 2018/8/29

N2 - 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 (12,13C) and oxygen (16,18O) 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 species-specific 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 δ18O tracks the δ18O isotope signature of precipitation. In total, we analysed 337 samples from 93 sites across North America and Eurasia using two important peat-forming Sphagnum species (S. magellanicum, S. fuscum) common to the Holarctic realm. There were differences in δ13C values between species. For S. magellanicum δ13C decreased with increasing height above the water table (HWT, R2 =17%) and was positively correlated to productivity (R2 = 7%). Together these two variables explained 46% of the between-site variation in δ13C values. For S. fuscum, productivity was the only significant predictor of δ13C but had low explanatory power (total R2 = 6%). For δ18O values, approximately 90% of the variation was found between sites. Globally modelled annual δ18O values in precipitation explained 69% of the between-site variation in tissue δ18O. S. magellanicum showed lower δ18O enrichment than S. fuscum (-0.83 ‰ lower). Elevation and climatic variables were weak predictors of tissue δ18O values after controlling for δ18O values of the precipitation. To summarize, our study provides evidence for (a) good predictability of tissue δ18O values from modelled annual δ18O values in precipitation, and (b) the possibility of relating tissue δ13C 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.

AB - 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 (12,13C) and oxygen (16,18O) 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 species-specific 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 δ18O tracks the δ18O isotope signature of precipitation. In total, we analysed 337 samples from 93 sites across North America and Eurasia using two important peat-forming Sphagnum species (S. magellanicum, S. fuscum) common to the Holarctic realm. There were differences in δ13C values between species. For S. magellanicum δ13C decreased with increasing height above the water table (HWT, R2 =17%) and was positively correlated to productivity (R2 = 7%). Together these two variables explained 46% of the between-site variation in δ13C values. For S. fuscum, productivity was the only significant predictor of δ13C but had low explanatory power (total R2 = 6%). For δ18O values, approximately 90% of the variation was found between sites. Globally modelled annual δ18O values in precipitation explained 69% of the between-site variation in tissue δ18O. S. magellanicum showed lower δ18O enrichment than S. fuscum (-0.83 ‰ lower). Elevation and climatic variables were weak predictors of tissue δ18O values after controlling for δ18O values of the precipitation. To summarize, our study provides evidence for (a) good predictability of tissue δ18O values from modelled annual δ18O values in precipitation, and (b) the possibility of relating tissue δ13C 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.

U2 - 10.5194/bg-15-5189-2018

DO - 10.5194/bg-15-5189-2018

M3 - Article

VL - 15

SP - 5189

EP - 5202

JO - Biogeosciences

T2 - Biogeosciences

JF - Biogeosciences

SN - 1726-4170

IS - 16

ER -