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Non-uniform seasona...
Non-uniform seasonal warming regulates vegetation greening and atmospheric CO2 amplification over northern lands
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- Li, Zhao (författare)
- East China Normal University
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- Xia, Jianyang (författare)
- East China Normal University
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- Ahlström, Anders (författare)
- Lund University,Lunds universitet,BECC: Biodiversity and Ecosystem services in a Changing Climate,Centrum för miljö- och klimatvetenskap (CEC),Naturvetenskapliga fakulteten,MERGE: ModElling the Regional and Global Earth system,Institutionen för naturgeografi och ekosystemvetenskap,Centre for Environmental and Climate Science (CEC),Faculty of Science,Dept of Physical Geography and Ecosystem Science,Stanford University
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- Rinke, Annette (författare)
- Alfred-Wegener Institute for Polar and Marine Research, Potsdam,Beijing Normal University
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- Koven, Charles (författare)
- Lawrence Berkeley National Laboratory
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- Hayes, Daniel J. (författare)
- University of Maine
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- Ji, Duoying (författare)
- Beijing Normal University
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- Zhang, Geli (författare)
- China Agricultural University
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- Krinner, Gerhard (författare)
- University Grenoble Alpes
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- Chen, Guangsheng (författare)
- University of Maine
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- Cheng, Wanying (författare)
- East China Normal University
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- Dong, Jinwei (författare)
- Chinese Academy of Sciences
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- Liang, Junyi (författare)
- Oak Ridge National Laboratory
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- Moore, John C. (författare)
- Beijing Normal University
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- Jiang, Lifen (författare)
- Northern Arizona University
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- Yan, Liming (författare)
- East China Normal University
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- Ciais, Philippe (författare)
- Versailles Saint-Quentin-en-Yvelines University
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- Peng, Shushi (författare)
- Peking University,Laboratoire de Glaciologie et Géophysique de l'Environnement (LGGE),University Grenoble Alpes,Versailles Saint-Quentin-en-Yvelines University
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- Wang, Ying Ping (författare)
- CSIRO Oceans and Atmosphere, Canberra
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- Xiao, Xiangming (författare)
- Fudan University,University of Oklahoma
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- Shi, Zheng (författare)
- University of Oklahoma
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- McGuire, A. David (författare)
- University of Alaska Fairbanks
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- Luo, Yiqi (författare)
- Northern Arizona University
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(creator_code:org_t)
- 2018-11-27
- 2018
- Engelska.
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Ingår i: Environmental Research Letters. - : IOP Publishing. - 1748-9326. ; 13:12
- Relaterad länk:
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http://dx.doi.org/10... (free)
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https://doi.org/10.1...
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The enhanced vegetation growth by climate warming plays a pivotal role in amplifying the seasonal cycle of atmospheric CO2 at northern lands (>50° N) since 1960s. However, the correlation between vegetation growth, temperature and seasonal amplitude of atmospheric CO2 concentration have become elusive with the slowed increasing trend of vegetation growth and weakened temperature control on CO2 uptake since late 1990s. Here, based on in situ atmospheric CO2 concentration records from the Barrow observatory site, we found a slowdown in the increasing trend of the atmospheric CO2 amplitude from 1990s to mid-2000s. This phenomenon was associated with the paused decrease in the minimum CO2 concentration ([CO2]min), which was significantly correlated with the slowdown of vegetation greening and growing-season length extension. We then showed that both the vegetation greenness and growing-season length were positively correlated with spring but not autumn temperature over the northern lands. Furthermore, such asymmetric dependences of vegetation growth upon spring and autumn temperature cannot be captured by the state-of-art terrestrial biosphere models. These findings indicate that the responses of vegetation growth to spring and autumn warming are asymmetric, and highlight the need of improving autumn phenology in the models for predicting seasonal cycle of atmospheric CO2 concentration.
Ämnesord
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Naturgeografi (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Physical Geography (hsv//eng)
Nyckelord
- asymmetric response
- atmosphericCO amplitude
- non-uniform seasonal warming
- slowed down
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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- Av författaren/redakt...
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Li, Zhao
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Xia, Jianyang
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Ahlström, Anders
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Rinke, Annette
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Koven, Charles
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Hayes, Daniel J.
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visa fler...
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Ji, Duoying
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Zhang, Geli
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Krinner, Gerhard
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Chen, Guangsheng
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Cheng, Wanying
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Dong, Jinwei
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Liang, Junyi
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Moore, John C.
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Jiang, Lifen
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Yan, Liming
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Ciais, Philippe
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Peng, Shushi
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Wang, Ying Ping
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Xiao, Xiangming
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Shi, Zheng
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McGuire, A. Davi ...
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Luo, Yiqi
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