Strong impacts of daily minimum temperature on the green-up date and summer greenness of the Tibetan Plateau
Abstract: Understanding vegetation responses to climate change on the Tibetan Plateau (TP) helps in elucidating the landatmosphere energy exchange, which affects air mass movement over and around the TP. Although the TP is one of the world's most sensitive regions in terms of climatic warming,...
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Online Access: | https://hdl.handle.net/10067/1402260151162165141 https://repository.uantwerpen.be/docman/irua/280b65/140226_2018_03_01.pdf |
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ftunivantwerpen:c:irua:140226 2023-07-16T03:57:11+02:00 Strong impacts of daily minimum temperature on the green-up date and summer greenness of the Tibetan Plateau Shen, Miaogen Piao, Shilong Chen, Xiaoqiu An, Shuai Fu, Yongshuo H. Wang, Shiping Cong, Nan Janssens, Ivan 2016 pdf https://hdl.handle.net/10067/1402260151162165141 https://repository.uantwerpen.be/docman/irua/280b65/140226_2018_03_01.pdf eng eng info:eu-repo/semantics/altIdentifier/doi/10.1111/GCB.13301 info:eu-repo/semantics/altIdentifier/isi/000381077300010 info:eu-repo/semantics/openAccess 1354-1013 Global change biology Biology info:eu-repo/semantics/acceptedVersion info:eu-repo/semantics/article 2016 ftunivantwerpen https://doi.org/10.1111/GCB.13301 2023-06-26T22:21:29Z Abstract: Understanding vegetation responses to climate change on the Tibetan Plateau (TP) helps in elucidating the landatmosphere energy exchange, which affects air mass movement over and around the TP. Although the TP is one of the world's most sensitive regions in terms of climatic warming, little is known about how the vegetation responds. Here, we focus on how spring phenology and summertime greenness respond to the asymmetric warming, that is, stronger warming during nighttime than during daytime. Using both in situ and satellite observations, we found that vegetation green-up date showed a stronger negative partial correlation with daily minimum temperature (Tmin) than with maximum temperature (Tmax) before the growing season (preseason henceforth). Summer vegetation greenness was strongly positively correlated with summer Tmin, but negatively with Tmax. A 1-K increase in preseason Tmin advanced green-up date by 4 days (P < 0.05) and in summer enhanced greenness by 3.6% relative to the mean greenness during 20002004 (P < 0.01). In contrast, increases in preseason Tmax did not advance green-up date (P > 0.10) and higher summer Tmax even reduced greenness by 2.6% K−1 (P < 0.05). The stimulating effects of increasing Tmin were likely caused by reduced low temperature constraints, and the apparent negative effects of higher Tmax on greenness were probably due to the accompanying decline in water availability. The dominant enhancing effect of nighttime warming indicates that climatic warming will probably have stronger impact on TP ecosystems than on apparently similar Arctic ecosystems where vegetation is controlled mainly by Tmax. Our results are crucial for future improvements of dynamic vegetation models embedded in the Earth System Models which are being used to describe the behavior of the Asian monsoon. The results are significant because the state of the vegetation on the TP plays an important role in steering the monsoon. Article in Journal/Newspaper Arctic Climate change IRUA - Institutional Repository van de Universiteit Antwerpen Arctic Global Change Biology 22 9 3057 3066 |
institution |
Open Polar |
collection |
IRUA - Institutional Repository van de Universiteit Antwerpen |
op_collection_id |
ftunivantwerpen |
language |
English |
topic |
Biology |
spellingShingle |
Biology Shen, Miaogen Piao, Shilong Chen, Xiaoqiu An, Shuai Fu, Yongshuo H. Wang, Shiping Cong, Nan Janssens, Ivan Strong impacts of daily minimum temperature on the green-up date and summer greenness of the Tibetan Plateau |
topic_facet |
Biology |
description |
Abstract: Understanding vegetation responses to climate change on the Tibetan Plateau (TP) helps in elucidating the landatmosphere energy exchange, which affects air mass movement over and around the TP. Although the TP is one of the world's most sensitive regions in terms of climatic warming, little is known about how the vegetation responds. Here, we focus on how spring phenology and summertime greenness respond to the asymmetric warming, that is, stronger warming during nighttime than during daytime. Using both in situ and satellite observations, we found that vegetation green-up date showed a stronger negative partial correlation with daily minimum temperature (Tmin) than with maximum temperature (Tmax) before the growing season (preseason henceforth). Summer vegetation greenness was strongly positively correlated with summer Tmin, but negatively with Tmax. A 1-K increase in preseason Tmin advanced green-up date by 4 days (P < 0.05) and in summer enhanced greenness by 3.6% relative to the mean greenness during 20002004 (P < 0.01). In contrast, increases in preseason Tmax did not advance green-up date (P > 0.10) and higher summer Tmax even reduced greenness by 2.6% K−1 (P < 0.05). The stimulating effects of increasing Tmin were likely caused by reduced low temperature constraints, and the apparent negative effects of higher Tmax on greenness were probably due to the accompanying decline in water availability. The dominant enhancing effect of nighttime warming indicates that climatic warming will probably have stronger impact on TP ecosystems than on apparently similar Arctic ecosystems where vegetation is controlled mainly by Tmax. Our results are crucial for future improvements of dynamic vegetation models embedded in the Earth System Models which are being used to describe the behavior of the Asian monsoon. The results are significant because the state of the vegetation on the TP plays an important role in steering the monsoon. |
format |
Article in Journal/Newspaper |
author |
Shen, Miaogen Piao, Shilong Chen, Xiaoqiu An, Shuai Fu, Yongshuo H. Wang, Shiping Cong, Nan Janssens, Ivan |
author_facet |
Shen, Miaogen Piao, Shilong Chen, Xiaoqiu An, Shuai Fu, Yongshuo H. Wang, Shiping Cong, Nan Janssens, Ivan |
author_sort |
Shen, Miaogen |
title |
Strong impacts of daily minimum temperature on the green-up date and summer greenness of the Tibetan Plateau |
title_short |
Strong impacts of daily minimum temperature on the green-up date and summer greenness of the Tibetan Plateau |
title_full |
Strong impacts of daily minimum temperature on the green-up date and summer greenness of the Tibetan Plateau |
title_fullStr |
Strong impacts of daily minimum temperature on the green-up date and summer greenness of the Tibetan Plateau |
title_full_unstemmed |
Strong impacts of daily minimum temperature on the green-up date and summer greenness of the Tibetan Plateau |
title_sort |
strong impacts of daily minimum temperature on the green-up date and summer greenness of the tibetan plateau |
publishDate |
2016 |
url |
https://hdl.handle.net/10067/1402260151162165141 https://repository.uantwerpen.be/docman/irua/280b65/140226_2018_03_01.pdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change |
genre_facet |
Arctic Climate change |
op_source |
1354-1013 Global change biology |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1111/GCB.13301 info:eu-repo/semantics/altIdentifier/isi/000381077300010 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1111/GCB.13301 |
container_title |
Global Change Biology |
container_volume |
22 |
container_issue |
9 |
container_start_page |
3057 |
op_container_end_page |
3066 |
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1771543688644657152 |