A High Arctic soil ecosystem resists long‐term environmental manipulations
Abstract We evaluated above‐ and belowground ecosystem changes in a 16 year, combined fertilization and warming experiment in a High Arctic tundra deciduous shrub heath (Alexandra Fiord, Ellesmere Island, NU, Canada). Soil emissions of the three key greenhouse gases (GHGs) (carbon dioxide, methane,...
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crwiley:10.1111/j.1365-2486.2011.02431.x 2024-09-15T17:36:33+00:00 A High Arctic soil ecosystem resists long‐term environmental manipulations LAMB, ERIC G. HAN, SUKKYUN LANOIL, BRIAN D. HENRY, GREG H. R. BRUMMELL, MARTIN E. BANERJEE, SAMIRAN SICILIANO, STEVEN D. 2011 http://dx.doi.org/10.1111/j.1365-2486.2011.02431.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-2486.2011.02431.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-2486.2011.02431.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Global Change Biology volume 17, issue 10, page 3187-3194 ISSN 1354-1013 1365-2486 journal-article 2011 crwiley https://doi.org/10.1111/j.1365-2486.2011.02431.x 2024-08-13T04:12:54Z Abstract We evaluated above‐ and belowground ecosystem changes in a 16 year, combined fertilization and warming experiment in a High Arctic tundra deciduous shrub heath (Alexandra Fiord, Ellesmere Island, NU, Canada). Soil emissions of the three key greenhouse gases (GHGs) (carbon dioxide, methane, and nitrous oxide) were measured in mid‐July 2009 using soil respiration chambers attached to a FTIR system. Soil chemical and biochemical properties including Q 10 values for CO 2 , CH 4 , and N 2 O, Bacteria and Archaea assemblage composition, and the diversity and prevalence of key nitrogen cycling genes including bacterial amoA , crenarchaeal amoA , and nosZ were measured. Warming and fertilization caused strong increases in plant community cover and height but had limited effects on GHG fluxes and no substantial effect on soil chemistry or biochemistry. Similarly, there was a surprising lack of directional shifts in the soil microbial community as a whole or any change at all in microbial functional groups associated with CH 4 consumption or N 2 O cycling in any treatment. Thus, it appears that while warming and increased nutrient availability have strongly affected the plant community over the last 16 years, the belowground ecosystem has not yet responded. This resistance of the soil ecosystem has resulted in limited changes in GHG fluxes in response to the experimental treatments. Article in Journal/Newspaper Alexandra Fiord Ellesmere Island Tundra Wiley Online Library Global Change Biology 17 10 3187 3194 |
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Wiley Online Library |
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crwiley |
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English |
description |
Abstract We evaluated above‐ and belowground ecosystem changes in a 16 year, combined fertilization and warming experiment in a High Arctic tundra deciduous shrub heath (Alexandra Fiord, Ellesmere Island, NU, Canada). Soil emissions of the three key greenhouse gases (GHGs) (carbon dioxide, methane, and nitrous oxide) were measured in mid‐July 2009 using soil respiration chambers attached to a FTIR system. Soil chemical and biochemical properties including Q 10 values for CO 2 , CH 4 , and N 2 O, Bacteria and Archaea assemblage composition, and the diversity and prevalence of key nitrogen cycling genes including bacterial amoA , crenarchaeal amoA , and nosZ were measured. Warming and fertilization caused strong increases in plant community cover and height but had limited effects on GHG fluxes and no substantial effect on soil chemistry or biochemistry. Similarly, there was a surprising lack of directional shifts in the soil microbial community as a whole or any change at all in microbial functional groups associated with CH 4 consumption or N 2 O cycling in any treatment. Thus, it appears that while warming and increased nutrient availability have strongly affected the plant community over the last 16 years, the belowground ecosystem has not yet responded. This resistance of the soil ecosystem has resulted in limited changes in GHG fluxes in response to the experimental treatments. |
format |
Article in Journal/Newspaper |
author |
LAMB, ERIC G. HAN, SUKKYUN LANOIL, BRIAN D. HENRY, GREG H. R. BRUMMELL, MARTIN E. BANERJEE, SAMIRAN SICILIANO, STEVEN D. |
spellingShingle |
LAMB, ERIC G. HAN, SUKKYUN LANOIL, BRIAN D. HENRY, GREG H. R. BRUMMELL, MARTIN E. BANERJEE, SAMIRAN SICILIANO, STEVEN D. A High Arctic soil ecosystem resists long‐term environmental manipulations |
author_facet |
LAMB, ERIC G. HAN, SUKKYUN LANOIL, BRIAN D. HENRY, GREG H. R. BRUMMELL, MARTIN E. BANERJEE, SAMIRAN SICILIANO, STEVEN D. |
author_sort |
LAMB, ERIC G. |
title |
A High Arctic soil ecosystem resists long‐term environmental manipulations |
title_short |
A High Arctic soil ecosystem resists long‐term environmental manipulations |
title_full |
A High Arctic soil ecosystem resists long‐term environmental manipulations |
title_fullStr |
A High Arctic soil ecosystem resists long‐term environmental manipulations |
title_full_unstemmed |
A High Arctic soil ecosystem resists long‐term environmental manipulations |
title_sort |
high arctic soil ecosystem resists long‐term environmental manipulations |
publisher |
Wiley |
publishDate |
2011 |
url |
http://dx.doi.org/10.1111/j.1365-2486.2011.02431.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-2486.2011.02431.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-2486.2011.02431.x |
genre |
Alexandra Fiord Ellesmere Island Tundra |
genre_facet |
Alexandra Fiord Ellesmere Island Tundra |
op_source |
Global Change Biology volume 17, issue 10, page 3187-3194 ISSN 1354-1013 1365-2486 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1365-2486.2011.02431.x |
container_title |
Global Change Biology |
container_volume |
17 |
container_issue |
10 |
container_start_page |
3187 |
op_container_end_page |
3194 |
_version_ |
1810490216786427904 |