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Synthesizing greenhouse gas fluxes across nine European peatlands and shrublands – responses to climatic and environmental changes. / Carter, Mette Sustmann; Larsen, Klaus Steenberg; Emmett, B.; Estiarte, M.; Field, C.; Leith, I. D.; Lund, M.; Meijide, A.; Mills, R. T. E.; Niinemets, Ü.; Peñuelas, J.; Portillo-Estrada, M.; Schmidt, I. K.; Selsted, Merete Bang; Sheppard, L. J.; Sowerby, A.; Tietema, A.; Beier, Claus.

In: Biogeosciences Discussions, Vol. 9, No. 3, 2012, p. 3693-3738.

Publication: Research - peer-reviewJournal article – Annual report year: 2012

Harvard

Carter, MS, Larsen, KS, Emmett, B, Estiarte, M, Field, C, Leith, ID, Lund, M, Meijide, A, Mills, RTE, Niinemets, Ü, Peñuelas, J, Portillo-Estrada, M, Schmidt, IK, Selsted, MB, Sheppard, LJ, Sowerby, A, Tietema, A & Beier, C 2012, 'Synthesizing greenhouse gas fluxes across nine European peatlands and shrublands – responses to climatic and environmental changes' Biogeosciences Discussions, vol 9, no. 3, pp. 3693-3738., 10.5194/bgd-9-3693-2012

APA

CBE

Carter MS, Larsen KS, Emmett B, Estiarte M, Field C, Leith ID, Lund M, Meijide A, Mills RTE, Niinemets Ü, Peñuelas J, Portillo-Estrada M, Schmidt IK, Selsted MB, Sheppard LJ, Sowerby A, Tietema A, Beier C. 2012. Synthesizing greenhouse gas fluxes across nine European peatlands and shrublands – responses to climatic and environmental changes. Biogeosciences Discussions. 9(3):3693-3738. Available from: 10.5194/bgd-9-3693-2012

MLA

Vancouver

Author

Carter, Mette Sustmann; Larsen, Klaus Steenberg; Emmett, B.; Estiarte, M.; Field, C.; Leith, I. D.; Lund, M.; Meijide, A.; Mills, R. T. E.; Niinemets, Ü.; Peñuelas, J.; Portillo-Estrada, M.; Schmidt, I. K.; Selsted, Merete Bang; Sheppard, L. J.; Sowerby, A.; Tietema, A.; Beier, Claus / Synthesizing greenhouse gas fluxes across nine European peatlands and shrublands – responses to climatic and environmental changes.

In: Biogeosciences Discussions, Vol. 9, No. 3, 2012, p. 3693-3738.

Publication: Research - peer-reviewJournal article – Annual report year: 2012

Bibtex

@article{0d05550a1ab3465a9e42229069d6a8ec,
title = "Synthesizing greenhouse gas fluxes across nine European peatlands and shrublands – responses to climatic and environmental changes",
keywords = "Earth and Environmental Sciences, Biology and Life Sciences",
publisher = "Copernicus GmbH",
author = "Carter, {Mette Sustmann} and Larsen, {Klaus Steenberg} and B. Emmett and M. Estiarte and C. Field and Leith, {I. D.} and M. Lund and A. Meijide and Mills, {R. T. E.} and Ü. Niinemets and J. Peñuelas and M. Portillo-Estrada and Schmidt, {I. K.} and Selsted, {Merete Bang} and Sheppard, {L. J.} and A. Sowerby and A. Tietema and Claus Beier",
year = "2012",
doi = "10.5194/bgd-9-3693-2012",
volume = "9",
number = "3",
pages = "3693--3738",
journal = "Biogeosciences Discussions",
issn = "1810-6277",

}

RIS

TY - JOUR

T1 - Synthesizing greenhouse gas fluxes across nine European peatlands and shrublands – responses to climatic and environmental changes

A1 - Carter,Mette Sustmann

A1 - Larsen,Klaus Steenberg

A1 - Emmett,B.

A1 - Estiarte,M.

A1 - Field,C.

A1 - Leith,I. D.

A1 - Lund,M.

A1 - Meijide,A.

A1 - Mills,R. T. E.

A1 - Niinemets,Ü.

A1 - Peñuelas,J.

A1 - Portillo-Estrada,M.

A1 - Schmidt,I. K.

A1 - Selsted,Merete Bang

A1 - Sheppard,L. J.

A1 - Sowerby,A.

A1 - Tietema,A.

A1 - Beier,Claus

AU - Carter,Mette Sustmann

AU - Larsen,Klaus Steenberg

AU - Emmett,B.

AU - Estiarte,M.

AU - Field,C.

AU - Leith,I. D.

AU - Lund,M.

AU - Meijide,A.

AU - Mills,R. T. E.

AU - Niinemets,Ü.

AU - Peñuelas,J.

AU - Portillo-Estrada,M.

AU - Schmidt,I. K.

AU - Selsted,Merete Bang

AU - Sheppard,L. J.

AU - Sowerby,A.

AU - Tietema,A.

AU - Beier,Claus

PB - Copernicus GmbH

PY - 2012

Y1 - 2012

N2 - In this study, we compare annual fluxes of methane (CH<sub>4</sub>), nitrous oxide (N<sub>2</sub>O) and soil respiratory carbon dioxide (CO<sub>2</sub>) measured at nine European peatlands (<i>n</i> = 4) and shrublands (<i>n</i> = 5). The sites range from northern Sweden to Spain, covering a span in mean annual air temperature from 0 to 16 °C, and in annual precipitation from 300 to 1300 mm yr<sup>−1</sup>. The effects of climate change, including temperature increase and prolonged drought, were tested at five shrubland sites. At one peatland site, the long-term (&gt;30 yr) effect of drainage was assessed, while increased nitrogen deposition was investigated at three peatland sites. <br/><br/> The shrublands were generally sinks for atmospheric CH<sub>4</sub> whereas the peatlands were CH<sub>4</sub> sources, with fluxes ranging from −519 to +6890 mg CH<sub>4</sub>-C m<sup>−2</sup> yr<sup>−1</sup> across the studied ecosystems. At the peatland sites, annual CH<sub>4</sub> emission increased with mean annual air temperature, while a negative relationship was found between net CH<sub>4</sub> uptake and the soil carbon stock at the shrubland sites. Annual N<sub>2</sub>O fluxes were generally small ranging from –14 to 42 mg N<sub>2</sub>O-N m<sup>−2</sup> yr<sup>−1</sup>. Highest N<sub>2</sub>O emission occurred at the sites that had highest concentration of nitrate (NO<sub>3</sub><sup>−</sup>) in soil water. Furthermore, experimentally increased NO<sub>3</sub><sup>−</sup> deposition led to increased N<sub>2</sub>O efflux, whereas prolonged drought and long-term drainage reduced the N<sub>2</sub>O efflux. Soil CO<sub>2</sub> emissions in control plots ranged from 310 to 732 g CO<sub>2</sub>-C m<sup>−2</sup> yr<sup>−1</sup>. Drought and long-term drainage generally reduced the soil CO<sub>2</sub> efflux, except at a~hydric shrubland where drought tended to increase soil respiration. <br/><br/> When comparing the fractional importance of each greenhouse gas to the total numerical global warming response, the change in CO<sub>2</sub> efflux dominated the response in all treatments (ranging 71–96%), except for NO<sub>3</sub><sup>−</sup> addition where 89% was due to change in CH<sub>4</sub> emissions. Thus, in European peatlands and shrublands the feedback to global warming induced by the investigated anthropogenic disturbances will be dominated by variations in soil CO<sub>2</sub> fluxes.

AB - In this study, we compare annual fluxes of methane (CH<sub>4</sub>), nitrous oxide (N<sub>2</sub>O) and soil respiratory carbon dioxide (CO<sub>2</sub>) measured at nine European peatlands (<i>n</i> = 4) and shrublands (<i>n</i> = 5). The sites range from northern Sweden to Spain, covering a span in mean annual air temperature from 0 to 16 °C, and in annual precipitation from 300 to 1300 mm yr<sup>−1</sup>. The effects of climate change, including temperature increase and prolonged drought, were tested at five shrubland sites. At one peatland site, the long-term (&gt;30 yr) effect of drainage was assessed, while increased nitrogen deposition was investigated at three peatland sites. <br/><br/> The shrublands were generally sinks for atmospheric CH<sub>4</sub> whereas the peatlands were CH<sub>4</sub> sources, with fluxes ranging from −519 to +6890 mg CH<sub>4</sub>-C m<sup>−2</sup> yr<sup>−1</sup> across the studied ecosystems. At the peatland sites, annual CH<sub>4</sub> emission increased with mean annual air temperature, while a negative relationship was found between net CH<sub>4</sub> uptake and the soil carbon stock at the shrubland sites. Annual N<sub>2</sub>O fluxes were generally small ranging from –14 to 42 mg N<sub>2</sub>O-N m<sup>−2</sup> yr<sup>−1</sup>. Highest N<sub>2</sub>O emission occurred at the sites that had highest concentration of nitrate (NO<sub>3</sub><sup>−</sup>) in soil water. Furthermore, experimentally increased NO<sub>3</sub><sup>−</sup> deposition led to increased N<sub>2</sub>O efflux, whereas prolonged drought and long-term drainage reduced the N<sub>2</sub>O efflux. Soil CO<sub>2</sub> emissions in control plots ranged from 310 to 732 g CO<sub>2</sub>-C m<sup>−2</sup> yr<sup>−1</sup>. Drought and long-term drainage generally reduced the soil CO<sub>2</sub> efflux, except at a~hydric shrubland where drought tended to increase soil respiration. <br/><br/> When comparing the fractional importance of each greenhouse gas to the total numerical global warming response, the change in CO<sub>2</sub> efflux dominated the response in all treatments (ranging 71–96%), except for NO<sub>3</sub><sup>−</sup> addition where 89% was due to change in CH<sub>4</sub> emissions. Thus, in European peatlands and shrublands the feedback to global warming induced by the investigated anthropogenic disturbances will be dominated by variations in soil CO<sub>2</sub> fluxes.

KW - Earth and Environmental Sciences

KW - Biology and Life Sciences

U2 - 10.5194/bgd-9-3693-2012

DO - 10.5194/bgd-9-3693-2012

JO - Biogeosciences Discussions

JF - Biogeosciences Discussions

SN - 1810-6277

IS - 3

VL - 9

SP - 3693

EP - 3738

ER -