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Acceleration of global vegetation greenup from combined effects of climate change and human land management.

https://arctichealth.org/en/permalink/ahliterature297897
Source
Glob Chang Biol. 2018 11; 24(11):5484-5499
Publication Type
Journal Article
Research Support, Non-U.S. Gov't
Date
11-2018
Author
Lanhui Wang
Feng Tian
Yuhang Wang
Zhendong Wu
Guy Schurgers
Rasmus Fensholt
Author Affiliation
Department of Geosciences and Natural Resource Management, University of Copenhagen, Copenhagen, Denmark.
Source
Glob Chang Biol. 2018 11; 24(11):5484-5499
Date
11-2018
Language
English
Publication Type
Journal Article
Research Support, Non-U.S. Gov't
Keywords
Agriculture
Climate change
Forestry
Humans
Plant Development
Remote Sensing Technology
Urbanization
Abstract
Global warming and human land management have greatly influenced vegetation growth through both changes in spring phenology and photosynthetic primary production. This will presumably impact the velocity of vegetation greenup (Vgreenup, the daily rate of changes in vegetation productivity during greenup period), yet little is currently known about the spatio-temporal patterns of Vgreenup of global vegetation. Here, we define Vgreenup as the ratio of the amplitude of greenup (Agreenup) to the duration of greenup (Dgreenup) and derive global Vgreenup from 34-year satellite leaf area index (LAI) observations to study spatio-temporal dynamics of Vgreenup at the global, hemispheric, and ecosystem scales. We find that 19.9% of the pixels analyzed (n = 1,175,453) experienced significant trends toward higher greenup rates by an average of 0.018 m2  m-2  day-1 for 1982-2015 as compared to 8.6% of pixels with significant negative trends (p 
PubMed ID
29963745 View in PubMed
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Acceleration of global vegetation greenup from combined effects of climate change and human land management.

https://arctichealth.org/en/permalink/ahliterature292666
Source
Glob Chang Biol. 2018 Jul 02; :
Publication Type
Journal Article
Date
Jul-02-2018
Author
Lanhui Wang
Feng Tian
Yuhang Wang
Zhendong Wu
Guy Schurgers
Rasmus Fensholt
Author Affiliation
Department of Geosciences and Natural Resource Management, University of Copenhagen, Øster Voldgade 10, DK-1350, Copenhagen, Denmark.
Source
Glob Chang Biol. 2018 Jul 02; :
Date
Jul-02-2018
Language
English
Publication Type
Journal Article
Abstract
Global warming and human land management have greatly influenced vegetation growth through both changes in spring phenology and photosynthetic primary production. This will presumably impact the velocity of vegetation greenup (Vgreenup, the daily rate of changes in vegetation productivity during greenup period), yet little is currently known about the spatio-temporal patterns of Vgreenup of global vegetation. Here, we define Vgreenup as the ratio of the amplitude of greenup (Agreenup) to the duration of greenup (Dgreenup) and derive global Vgreenup from 34-year satellite leaf area index (LAI) observations to study spatio-temporal dynamics of Vgreenup at the global, hemispheric and ecosystem scales. We find that 19.9% of the pixels analyzed (n = 1175453) experienced significant trends toward higher greenup rates by an average of 0.018 m2 m-2 day-1 for 1982-2015 as compared to 8.6% of pixels with significant negative trends (P
PubMed ID
29963745 View in PubMed
Less detail