Spatial heterogeneity of climate variation and vegetation response for Arctic and high-elevation regions from 2001–2018
Abstract In recent decades, an amplification of warming in Arctic and high-elevation regions has been widely observed, along with a general enhancement of vegetation growth. However, driven by variability in controlling factors and complex mechanisms, climate and vegetation changes can be highly het...
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crioppubl:10.1088/2515-7620/ab6369 2024-09-09T19:19:15+00:00 Spatial heterogeneity of climate variation and vegetation response for Arctic and high-elevation regions from 2001–2018 Wu, Wenjin Sun, Xiaohui Epstein, Howard Xu, Xiyan Li, Xinwu International Partnership Program of Chinese Academy of Sciences National Key Research and Development Program of China Strategic Priority Research Program of the Chinese Academy of Sciences 2020 http://dx.doi.org/10.1088/2515-7620/ab6369 https://iopscience.iop.org/article/10.1088/2515-7620/ab6369 https://iopscience.iop.org/article/10.1088/2515-7620/ab6369/pdf unknown IOP Publishing http://creativecommons.org/licenses/by/3.0/ https://iopscience.iop.org/info/page/text-and-data-mining Environmental Research Communications volume 2, issue 1, page 011007 ISSN 2515-7620 journal-article 2020 crioppubl https://doi.org/10.1088/2515-7620/ab6369 2024-06-24T04:18:20Z Abstract In recent decades, an amplification of warming in Arctic and high-elevation regions has been widely observed, along with a general enhancement of vegetation growth. However, driven by variability in controlling factors and complex mechanisms, climate and vegetation changes can be highly heterogeneous in space and time. In this study, an analysis is performed separating Arctic and Tibetan Plateau (TP) vegetated areas into various units according to a map of terrestrial ecoregions. The most recent variations of heat, moisture, and vegetation growth (MODIS Normalized Difference Vegetation Index) are evaluated over 2001–2018. Relationships among the climate and vegetation variables are assessed. Six distinct change patterns are identified: (1) synchronized increase of day and night temperature and precipitation during April to October coinciding with strong vegetation greening, (2) profound warming with no change in precipitation and vegetation, (3) an increase of summer temperature and vegetation with a negative latitudinal gradient, (4) greening under increased precipitation without warming, (5) browning not likely being driven by climate, (6) warming only during the nighttime and moderately enhanced vegetation growth. It is demonstrated that vegetation growth in the Arctic and TP is largely controlled by nighttime temperature and precipitation, as opposed to daytime temperature. The exception is the Canadian Arctic, where greening is directly related to summer daytime warming, and a contrasting relationship is observed on the TP. The underlying causes of these patterns are discussed, relating them to multiple mechanisms reported in the literature. These findings may help to further understand the changing Arctic and high-elevation climate and its effects on vegetation growth. Article in Journal/Newspaper Arctic IOP Publishing Arctic Browning ENVELOPE(164.050,164.050,-74.617,-74.617) Environmental Research Communications 2 1 011007 |
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Abstract In recent decades, an amplification of warming in Arctic and high-elevation regions has been widely observed, along with a general enhancement of vegetation growth. However, driven by variability in controlling factors and complex mechanisms, climate and vegetation changes can be highly heterogeneous in space and time. In this study, an analysis is performed separating Arctic and Tibetan Plateau (TP) vegetated areas into various units according to a map of terrestrial ecoregions. The most recent variations of heat, moisture, and vegetation growth (MODIS Normalized Difference Vegetation Index) are evaluated over 2001–2018. Relationships among the climate and vegetation variables are assessed. Six distinct change patterns are identified: (1) synchronized increase of day and night temperature and precipitation during April to October coinciding with strong vegetation greening, (2) profound warming with no change in precipitation and vegetation, (3) an increase of summer temperature and vegetation with a negative latitudinal gradient, (4) greening under increased precipitation without warming, (5) browning not likely being driven by climate, (6) warming only during the nighttime and moderately enhanced vegetation growth. It is demonstrated that vegetation growth in the Arctic and TP is largely controlled by nighttime temperature and precipitation, as opposed to daytime temperature. The exception is the Canadian Arctic, where greening is directly related to summer daytime warming, and a contrasting relationship is observed on the TP. The underlying causes of these patterns are discussed, relating them to multiple mechanisms reported in the literature. These findings may help to further understand the changing Arctic and high-elevation climate and its effects on vegetation growth. |
author2 |
International Partnership Program of Chinese Academy of Sciences National Key Research and Development Program of China Strategic Priority Research Program of the Chinese Academy of Sciences |
format |
Article in Journal/Newspaper |
author |
Wu, Wenjin Sun, Xiaohui Epstein, Howard Xu, Xiyan Li, Xinwu |
spellingShingle |
Wu, Wenjin Sun, Xiaohui Epstein, Howard Xu, Xiyan Li, Xinwu Spatial heterogeneity of climate variation and vegetation response for Arctic and high-elevation regions from 2001–2018 |
author_facet |
Wu, Wenjin Sun, Xiaohui Epstein, Howard Xu, Xiyan Li, Xinwu |
author_sort |
Wu, Wenjin |
title |
Spatial heterogeneity of climate variation and vegetation response for Arctic and high-elevation regions from 2001–2018 |
title_short |
Spatial heterogeneity of climate variation and vegetation response for Arctic and high-elevation regions from 2001–2018 |
title_full |
Spatial heterogeneity of climate variation and vegetation response for Arctic and high-elevation regions from 2001–2018 |
title_fullStr |
Spatial heterogeneity of climate variation and vegetation response for Arctic and high-elevation regions from 2001–2018 |
title_full_unstemmed |
Spatial heterogeneity of climate variation and vegetation response for Arctic and high-elevation regions from 2001–2018 |
title_sort |
spatial heterogeneity of climate variation and vegetation response for arctic and high-elevation regions from 2001–2018 |
publisher |
IOP Publishing |
publishDate |
2020 |
url |
http://dx.doi.org/10.1088/2515-7620/ab6369 https://iopscience.iop.org/article/10.1088/2515-7620/ab6369 https://iopscience.iop.org/article/10.1088/2515-7620/ab6369/pdf |
long_lat |
ENVELOPE(164.050,164.050,-74.617,-74.617) |
geographic |
Arctic Browning |
geographic_facet |
Arctic Browning |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Environmental Research Communications volume 2, issue 1, page 011007 ISSN 2515-7620 |
op_rights |
http://creativecommons.org/licenses/by/3.0/ https://iopscience.iop.org/info/page/text-and-data-mining |
op_doi |
https://doi.org/10.1088/2515-7620/ab6369 |
container_title |
Environmental Research Communications |
container_volume |
2 |
container_issue |
1 |
container_start_page |
011007 |
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1809759355555282944 |