Longer growing seasons do not increase net carbon uptake in the northeastern Siberian tundra
With global warming, snowmelt is occurring earlier and growing seasons are becoming longer around the Arctic. It has been suggested that this would lead to more uptake of carbon due to a lengthening of the period in which plants photosynthesize. To investigate this suggestion, 8 consecutive years of...
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Wiley-Blackwell
2011
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Online Access: | https://lup.lub.lu.se/record/2208302 https://doi.org/10.1029/2011JG001653 |
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ftulundlup:oai:lup.lub.lu.se:0e4a2c5d-f439-4a12-999c-1c3001f094b7 2023-05-15T14:59:12+02:00 Longer growing seasons do not increase net carbon uptake in the northeastern Siberian tundra Parmentier, Frans-Jan van der Molen, M. K. van Huissteden, J. Karsanaev, S. A. Kononov, A. V. Suzdalov, D. A. Maximov, T. C. Dolman, A. J. 2011 https://lup.lub.lu.se/record/2208302 https://doi.org/10.1029/2011JG001653 eng eng Wiley-Blackwell https://lup.lub.lu.se/record/2208302 http://dx.doi.org/10.1029/2011JG001653 wos:000296331000001 scopus:80155130048 Journal of Geophysical Research; 116, pp 04013-04013 (2011) ISSN: 2156-2202 Physical Geography contributiontojournal/article info:eu-repo/semantics/article text 2011 ftulundlup https://doi.org/10.1029/2011JG001653 2023-02-01T23:29:25Z With global warming, snowmelt is occurring earlier and growing seasons are becoming longer around the Arctic. It has been suggested that this would lead to more uptake of carbon due to a lengthening of the period in which plants photosynthesize. To investigate this suggestion, 8 consecutive years of eddy covariance measurements at a northeastern Siberian graminoid tundra site were investigated for patterns in net ecosystem exchange, gross primary production (GPP) and ecosystem respiration (R-eco). While GPP showed no clear increase with longer growing seasons, it was significantly increased in warmer summers. Due to these warmer temperatures however, the increase in uptake was mostly offset by an increase in R-eco. Therefore, overall variability in net carbon uptake was low, and no relationship with growing season length was found. Furthermore, the highest net uptake of carbon occurred with the shortest and the coldest growing season. Low uptake of carbon mostly occurred with longer or warmer growing seasons. We thus conclude that the net carbon uptake of this ecosystem is more likely to decrease rather than to increase under a warmer climate. These results contradict previous research that has showed more net carbon uptake with longer growing seasons. We hypothesize that this difference is due to site-specific differences, such as climate type and soil, and that changes in the carbon cycle with longer growing seasons will not be uniform around the Arctic. Article in Journal/Newspaper Arctic Global warming Tundra Lund University Publications (LUP) Arctic Journal of Geophysical Research 116 G4 |
institution |
Open Polar |
collection |
Lund University Publications (LUP) |
op_collection_id |
ftulundlup |
language |
English |
topic |
Physical Geography |
spellingShingle |
Physical Geography Parmentier, Frans-Jan van der Molen, M. K. van Huissteden, J. Karsanaev, S. A. Kononov, A. V. Suzdalov, D. A. Maximov, T. C. Dolman, A. J. Longer growing seasons do not increase net carbon uptake in the northeastern Siberian tundra |
topic_facet |
Physical Geography |
description |
With global warming, snowmelt is occurring earlier and growing seasons are becoming longer around the Arctic. It has been suggested that this would lead to more uptake of carbon due to a lengthening of the period in which plants photosynthesize. To investigate this suggestion, 8 consecutive years of eddy covariance measurements at a northeastern Siberian graminoid tundra site were investigated for patterns in net ecosystem exchange, gross primary production (GPP) and ecosystem respiration (R-eco). While GPP showed no clear increase with longer growing seasons, it was significantly increased in warmer summers. Due to these warmer temperatures however, the increase in uptake was mostly offset by an increase in R-eco. Therefore, overall variability in net carbon uptake was low, and no relationship with growing season length was found. Furthermore, the highest net uptake of carbon occurred with the shortest and the coldest growing season. Low uptake of carbon mostly occurred with longer or warmer growing seasons. We thus conclude that the net carbon uptake of this ecosystem is more likely to decrease rather than to increase under a warmer climate. These results contradict previous research that has showed more net carbon uptake with longer growing seasons. We hypothesize that this difference is due to site-specific differences, such as climate type and soil, and that changes in the carbon cycle with longer growing seasons will not be uniform around the Arctic. |
format |
Article in Journal/Newspaper |
author |
Parmentier, Frans-Jan van der Molen, M. K. van Huissteden, J. Karsanaev, S. A. Kononov, A. V. Suzdalov, D. A. Maximov, T. C. Dolman, A. J. |
author_facet |
Parmentier, Frans-Jan van der Molen, M. K. van Huissteden, J. Karsanaev, S. A. Kononov, A. V. Suzdalov, D. A. Maximov, T. C. Dolman, A. J. |
author_sort |
Parmentier, Frans-Jan |
title |
Longer growing seasons do not increase net carbon uptake in the northeastern Siberian tundra |
title_short |
Longer growing seasons do not increase net carbon uptake in the northeastern Siberian tundra |
title_full |
Longer growing seasons do not increase net carbon uptake in the northeastern Siberian tundra |
title_fullStr |
Longer growing seasons do not increase net carbon uptake in the northeastern Siberian tundra |
title_full_unstemmed |
Longer growing seasons do not increase net carbon uptake in the northeastern Siberian tundra |
title_sort |
longer growing seasons do not increase net carbon uptake in the northeastern siberian tundra |
publisher |
Wiley-Blackwell |
publishDate |
2011 |
url |
https://lup.lub.lu.se/record/2208302 https://doi.org/10.1029/2011JG001653 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Global warming Tundra |
genre_facet |
Arctic Global warming Tundra |
op_source |
Journal of Geophysical Research; 116, pp 04013-04013 (2011) ISSN: 2156-2202 |
op_relation |
https://lup.lub.lu.se/record/2208302 http://dx.doi.org/10.1029/2011JG001653 wos:000296331000001 scopus:80155130048 |
op_doi |
https://doi.org/10.1029/2011JG001653 |
container_title |
Journal of Geophysical Research |
container_volume |
116 |
container_issue |
G4 |
_version_ |
1766331330608496640 |