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Evidence for a weak...
Evidence for a weakening relationship between interannual temperature variability and northern vegetation activity.
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Piao, Shilong (author)
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Nan, Huijuan (author)
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Huntingford, Chris (author)
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Ciais, Philippe (author)
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Friedlingstein, Pierre (author)
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Sitch, Stephen (author)
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Peng, Shushi (author)
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- Ahlström, Anders (author)
- Lund University,Lunds universitet,Institutionen för naturgeografi och ekosystemvetenskap,Naturvetenskapliga fakulteten,Dept of Physical Geography and Ecosystem Science,Faculty of Science
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Canadell, Josep G (author)
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Cong, Nan (author)
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Levis, Sam (author)
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Levy, Peter E (author)
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Liu, Lingli (author)
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Lomas, Mark R (author)
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Mao, Jiafu (author)
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Myneni, Ranga B (author)
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Peylin, Philippe (author)
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Poulter, Ben (author)
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Shi, Xiaoying (author)
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Yin, Guodong (author)
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Viovy, Nicolas (author)
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Wang, Tao (author)
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Wang, Xuhui (author)
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Zaehle, Soenke (author)
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Zeng, Ning (author)
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Zeng, Zhenzhong (author)
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Chen, Anping (author)
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(creator_code:org_t)
- 2014-10-16
- 2014
- English.
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In: Nature Communications. - : Springer Science and Business Media LLC. - 2041-1723. ; 5
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Abstract
Subject headings
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- Satellite-derived Normalized Difference Vegetation Index (NDVI), a proxy of vegetation productivity, is known to be correlated with temperature in northern ecosystems. This relationship, however, may change over time following alternations in other environmental factors. Here we show that above 30°N, the strength of the relationship between the interannual variability of growing season NDVI and temperature (partial correlation coefficient RNDVI-GT) declined substantially between 1982 and 2011. This decrease in RNDVI-GT is mainly observed in temperate and arctic ecosystems, and is also partly reproduced by process-based ecosystem model results. In the temperate ecosystem, the decrease in RNDVI-GT coincides with an increase in drought. In the arctic ecosystem, it may be related to a nonlinear response of photosynthesis to temperature, increase of hot extreme days and shrub expansion over grass-dominated tundra. Our results caution the use of results from interannual time scales to constrain the decadal response of plants to ongoing warming.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Naturgeografi (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Physical Geography (hsv//eng)
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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Piao, Shilong
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Nan, Huijuan
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Huntingford, Chr ...
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Ciais, Philippe
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Friedlingstein, ...
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Sitch, Stephen
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show more...
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Peng, Shushi
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Ahlström, Anders
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Canadell, Josep ...
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Cong, Nan
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Levis, Sam
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Levy, Peter E
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Liu, Lingli
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Lomas, Mark R
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Mao, Jiafu
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Myneni, Ranga B
-
Peylin, Philippe
-
Poulter, Ben
-
Shi, Xiaoying
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Yin, Guodong
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Viovy, Nicolas
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Wang, Tao
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Wang, Xuhui
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Zaehle, Soenke
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Zeng, Ning
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Zeng, Zhenzhong
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Chen, Anping
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Earth and Relate ...
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and Physical Geograp ...
- Articles in the publication
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Nature Communica ...
- By the university
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Lund University