Synthesizing greenhouse gas fluxes across nine European peatlands and shrublands – responses to climatic and environmental changes
In this study, we compare annual fluxes of methane (CH 4 ), nitrous oxide (N 2 O) and soil respiratory carbon dioxide (CO 2 ) measured at nine European peatlands ( n = 4) and shrublands ( n = 5). The sites range from northern Sweden to Spain, covering a span in mean annual air temperature from 0 to...
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ftdoajarticles:oai:doaj.org/article:8408cd8b4c8d48fba01c7ce4aafe82ea 2023-05-15T17:45:13+02:00 Synthesizing greenhouse gas fluxes across nine European peatlands and shrublands – responses to climatic and environmental changes M. S. Carter K. S. Larsen B. Emmett M. Estiarte C. Field I. D. Leith M. Lund A. Meijide R. T. E. Mills Ü. Niinemets J. Peñuelas M. Portillo-Estrada I. K. Schmidt M. B. Selsted L. J. Sheppard A. Sowerby A. Tietema C. Beier 2012-10-01T00:00:00Z https://doi.org/10.5194/bg-9-3739-2012 https://doaj.org/article/8408cd8b4c8d48fba01c7ce4aafe82ea EN eng Copernicus Publications http://www.biogeosciences.net/9/3739/2012/bg-9-3739-2012.pdf https://doaj.org/toc/1726-4170 https://doaj.org/toc/1726-4189 doi:10.5194/bg-9-3739-2012 1726-4170 1726-4189 https://doaj.org/article/8408cd8b4c8d48fba01c7ce4aafe82ea Biogeosciences, Vol 9, Iss 10, Pp 3739-3755 (2012) Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 article 2012 ftdoajarticles https://doi.org/10.5194/bg-9-3739-2012 2022-12-31T12:05:25Z In this study, we compare annual fluxes of methane (CH 4 ), nitrous oxide (N 2 O) and soil respiratory carbon dioxide (CO 2 ) measured at nine European peatlands ( n = 4) and shrublands ( n = 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 −1 . The effects of climate change, including temperature increase and prolonged drought, were tested at five shrubland sites. At one peatland site, the long-term (> 30 yr) effect of drainage was assessed, while increased nitrogen deposition was investigated at three peatland sites. The shrublands were generally sinks for atmospheric CH 4 , whereas the peatlands were CH 4 sources, with fluxes ranging from −519 to +6890 mg CH 4 -C m −2 yr −1 across the studied ecosystems. At the peatland sites, annual CH 4 emission increased with mean annual air temperature, while a negative relationship was found between net CH 4 uptake and the soil carbon stock at the shrubland sites. Annual N 2 O fluxes were generally small ranging from −14 to 42 mg N 2 O-N m −2 yr −1 . Highest N 2 O emission occurred at the sites that had highest nitrate (NO 3 − ) concentration in the soil water. Furthermore, experimentally increased NO 3 − deposition led to increased N 2 O efflux, whereas prolonged drought and long-term drainage reduced the N 2 O efflux. Soil CO 2 emissions in control plots ranged from 310 to 732 g CO 2 -C m −2 yr −1 . Drought and long-term drainage generally reduced the soil CO 2 efflux, except at a hydric shrubland where drought tended to increase soil respiration. In terms of fractional importance of each greenhouse gas to the total numerical global warming response, the change in CO 2 efflux dominated the response in all treatments (ranging 71–96%), except for NO 3 − addition where 89% was due to change in CH 4 emissions. Thus, in European peatlands and shrublands the effect on global warming induced by the investigated anthropogenic disturbances will be dominated by ... Article in Journal/Newspaper Northern Sweden Directory of Open Access Journals: DOAJ Articles Biogeosciences 9 10 3739 3755 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 |
spellingShingle |
Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 M. S. Carter K. S. Larsen B. Emmett M. Estiarte C. Field I. D. Leith M. Lund A. Meijide R. T. E. Mills Ü. Niinemets J. Peñuelas M. Portillo-Estrada I. K. Schmidt M. B. Selsted L. J. Sheppard A. Sowerby A. Tietema C. Beier Synthesizing greenhouse gas fluxes across nine European peatlands and shrublands – responses to climatic and environmental changes |
topic_facet |
Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 |
description |
In this study, we compare annual fluxes of methane (CH 4 ), nitrous oxide (N 2 O) and soil respiratory carbon dioxide (CO 2 ) measured at nine European peatlands ( n = 4) and shrublands ( n = 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 −1 . The effects of climate change, including temperature increase and prolonged drought, were tested at five shrubland sites. At one peatland site, the long-term (> 30 yr) effect of drainage was assessed, while increased nitrogen deposition was investigated at three peatland sites. The shrublands were generally sinks for atmospheric CH 4 , whereas the peatlands were CH 4 sources, with fluxes ranging from −519 to +6890 mg CH 4 -C m −2 yr −1 across the studied ecosystems. At the peatland sites, annual CH 4 emission increased with mean annual air temperature, while a negative relationship was found between net CH 4 uptake and the soil carbon stock at the shrubland sites. Annual N 2 O fluxes were generally small ranging from −14 to 42 mg N 2 O-N m −2 yr −1 . Highest N 2 O emission occurred at the sites that had highest nitrate (NO 3 − ) concentration in the soil water. Furthermore, experimentally increased NO 3 − deposition led to increased N 2 O efflux, whereas prolonged drought and long-term drainage reduced the N 2 O efflux. Soil CO 2 emissions in control plots ranged from 310 to 732 g CO 2 -C m −2 yr −1 . Drought and long-term drainage generally reduced the soil CO 2 efflux, except at a hydric shrubland where drought tended to increase soil respiration. In terms of fractional importance of each greenhouse gas to the total numerical global warming response, the change in CO 2 efflux dominated the response in all treatments (ranging 71–96%), except for NO 3 − addition where 89% was due to change in CH 4 emissions. Thus, in European peatlands and shrublands the effect on global warming induced by the investigated anthropogenic disturbances will be dominated by ... |
format |
Article in Journal/Newspaper |
author |
M. S. Carter K. S. Larsen B. Emmett M. Estiarte C. Field I. D. Leith M. Lund A. Meijide R. T. E. Mills Ü. Niinemets J. Peñuelas M. Portillo-Estrada I. K. Schmidt M. B. Selsted L. J. Sheppard A. Sowerby A. Tietema C. Beier |
author_facet |
M. S. Carter K. S. Larsen B. Emmett M. Estiarte C. Field I. D. Leith M. Lund A. Meijide R. T. E. Mills Ü. Niinemets J. Peñuelas M. Portillo-Estrada I. K. Schmidt M. B. Selsted L. J. Sheppard A. Sowerby A. Tietema C. Beier |
author_sort |
M. S. Carter |
title |
Synthesizing greenhouse gas fluxes across nine European peatlands and shrublands – responses to climatic and environmental changes |
title_short |
Synthesizing greenhouse gas fluxes across nine European peatlands and shrublands – responses to climatic and environmental changes |
title_full |
Synthesizing greenhouse gas fluxes across nine European peatlands and shrublands – responses to climatic and environmental changes |
title_fullStr |
Synthesizing greenhouse gas fluxes across nine European peatlands and shrublands – responses to climatic and environmental changes |
title_full_unstemmed |
Synthesizing greenhouse gas fluxes across nine European peatlands and shrublands – responses to climatic and environmental changes |
title_sort |
synthesizing greenhouse gas fluxes across nine european peatlands and shrublands – responses to climatic and environmental changes |
publisher |
Copernicus Publications |
publishDate |
2012 |
url |
https://doi.org/10.5194/bg-9-3739-2012 https://doaj.org/article/8408cd8b4c8d48fba01c7ce4aafe82ea |
genre |
Northern Sweden |
genre_facet |
Northern Sweden |
op_source |
Biogeosciences, Vol 9, Iss 10, Pp 3739-3755 (2012) |
op_relation |
http://www.biogeosciences.net/9/3739/2012/bg-9-3739-2012.pdf https://doaj.org/toc/1726-4170 https://doaj.org/toc/1726-4189 doi:10.5194/bg-9-3739-2012 1726-4170 1726-4189 https://doaj.org/article/8408cd8b4c8d48fba01c7ce4aafe82ea |
op_doi |
https://doi.org/10.5194/bg-9-3739-2012 |
container_title |
Biogeosciences |
container_volume |
9 |
container_issue |
10 |
container_start_page |
3739 |
op_container_end_page |
3755 |
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1766148060476342272 |