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Exposures to temper...
Exposures to temperature beyond threshold disproportionately reduce vegetation growth in the northern hemisphere
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Wu, Xiuchen (author)
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Guo, Weichao (author)
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Liu, Hongyan (author)
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Li, Xiaoyan (author)
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Peng, Changhui (author)
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Allen, Craig D (author)
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Zhang, Cicheng (author)
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Wang, Pei (author)
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Pei, Tingting (author)
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Ma, Yujun (author)
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Tian, Yuhong (author)
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Song, Zhaoliang (author)
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Zhu, Wenquan (author)
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Wang, Yang (author)
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Li, Zongshan (author)
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- Chen, Deliang, 1961 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för geovetenskaper,Department of Earth Sciences
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(creator_code:org_t)
- 2018-12-22
- 2019
- English.
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In: National Science Review. - : Oxford University Press (OUP). - 2095-5138 .- 2053-714X. ; 6:4, s. 786-795
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https://gup.ub.gu.se...
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https://doi.org/10.1...
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Abstract
Subject headings
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- In recent decades, terrestrial vegetation in the northern hemisphere (NH) has been exposed to warming and more extremely high temperatures. However, the consequences of these changes for terrestrial vegetation growth remain poorly quantified and understood. By examining a satellite-based vegetation index, tree-ring measurements and land-surface model simulations, we discovered a consistent convex pattern in the responses of vegetation growth to temperature exposure (TE) for forest, shrub and grass in both the temperate (30°−50° N) and boreal (50°−70° N) NH during the period of 1982−2012. The response of vegetation growth to TE for the three vegetation types in both the temperate and boreal NH increased convergently with increasing temperature, until vegetation type-dependent temperature thresholds were reached. A TE beyond these temperature thresholds resulted in disproportionately weak positive or even strong negative responses. Vegetation growth in the boreal NH was more vulnerable to extremely high-temperature events than vegetation growth in the temporal NH. The non-linear responses discovered here provide new insights into the dynamics of northern terrestrial ecosystems in a warmer world.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences (hsv//eng)
Keyword
- temperature exposure
- vegetation growth
- extremely high temperature
- non-linear response
- temperate and boreal northern hemisphere
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Wu, Xiuchen
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Guo, Weichao
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Liu, Hongyan
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Li, Xiaoyan
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Peng, Changhui
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Allen, Craig D
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show more...
-
Zhang, Cicheng
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Wang, Pei
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Pei, Tingting
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Ma, Yujun
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Tian, Yuhong
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Song, Zhaoliang
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Zhu, Wenquan
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Wang, Yang
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Li, Zongshan
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Chen, Deliang, 1 ...
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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 ...
- Articles in the publication
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National Science ...
- By the university
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University of Gothenburg