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Leaf onset in the northern hemisphere triggered by daytime temperature
Recent warming significantly advanced leaf onset in the northern hemisphere. This signal cannot be accurately reproduced by current models parameterized by daily mean temperature (T(mean)). Here using in situ observations of leaf unfolding dates (LUDs) in Europe and the United States, we show that t...
Autores principales: | , , , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Pub. Group
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4423217/ https://www.ncbi.nlm.nih.gov/pubmed/25903224 http://dx.doi.org/10.1038/ncomms7911 |
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author | Piao, Shilong Tan, Jianguang Chen, Anping Fu, Yongshuo H. Ciais, Philippe Liu, Qiang Janssens, Ivan A. Vicca, Sara Zeng, Zhenzhong Jeong, Su-Jong Li, Yue Myneni, Ranga B. Peng, Shushi Shen, Miaogen Peñuelas, Josep |
author_facet | Piao, Shilong Tan, Jianguang Chen, Anping Fu, Yongshuo H. Ciais, Philippe Liu, Qiang Janssens, Ivan A. Vicca, Sara Zeng, Zhenzhong Jeong, Su-Jong Li, Yue Myneni, Ranga B. Peng, Shushi Shen, Miaogen Peñuelas, Josep |
author_sort | Piao, Shilong |
collection | PubMed |
description | Recent warming significantly advanced leaf onset in the northern hemisphere. This signal cannot be accurately reproduced by current models parameterized by daily mean temperature (T(mean)). Here using in situ observations of leaf unfolding dates (LUDs) in Europe and the United States, we show that the interannual anomalies of LUD during 1982–2011 are triggered by daytime (T(max)) more than by nighttime temperature (T(min)). Furthermore, an increase of 1 °C in T(max) would advance LUD by 4.7 days in Europe and 4.3 days in the United States, more than the conventional temperature sensitivity estimated from T(mean). The triggering role of T(max), rather than the T(min) or T(mean) variable, is also supported by analysis of the large-scale patterns of satellite-derived vegetation green-up in spring in the northern hemisphere (>30°N). Our results suggest a new conceptual framework of leaf onset using daytime temperature to improve the performance of phenology modules in current Earth system models. |
format | Online Article Text |
id | pubmed-4423217 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Nature Pub. Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-44232172015-05-20 Leaf onset in the northern hemisphere triggered by daytime temperature Piao, Shilong Tan, Jianguang Chen, Anping Fu, Yongshuo H. Ciais, Philippe Liu, Qiang Janssens, Ivan A. Vicca, Sara Zeng, Zhenzhong Jeong, Su-Jong Li, Yue Myneni, Ranga B. Peng, Shushi Shen, Miaogen Peñuelas, Josep Nat Commun Article Recent warming significantly advanced leaf onset in the northern hemisphere. This signal cannot be accurately reproduced by current models parameterized by daily mean temperature (T(mean)). Here using in situ observations of leaf unfolding dates (LUDs) in Europe and the United States, we show that the interannual anomalies of LUD during 1982–2011 are triggered by daytime (T(max)) more than by nighttime temperature (T(min)). Furthermore, an increase of 1 °C in T(max) would advance LUD by 4.7 days in Europe and 4.3 days in the United States, more than the conventional temperature sensitivity estimated from T(mean). The triggering role of T(max), rather than the T(min) or T(mean) variable, is also supported by analysis of the large-scale patterns of satellite-derived vegetation green-up in spring in the northern hemisphere (>30°N). Our results suggest a new conceptual framework of leaf onset using daytime temperature to improve the performance of phenology modules in current Earth system models. Nature Pub. Group 2015-04-23 /pmc/articles/PMC4423217/ /pubmed/25903224 http://dx.doi.org/10.1038/ncomms7911 Text en Copyright © 2015, Nature Publishing Group, a division of Macmillan Publishers Limited. All Rights Reserved. http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Piao, Shilong Tan, Jianguang Chen, Anping Fu, Yongshuo H. Ciais, Philippe Liu, Qiang Janssens, Ivan A. Vicca, Sara Zeng, Zhenzhong Jeong, Su-Jong Li, Yue Myneni, Ranga B. Peng, Shushi Shen, Miaogen Peñuelas, Josep Leaf onset in the northern hemisphere triggered by daytime temperature |
title | Leaf onset in the northern hemisphere triggered by daytime temperature |
title_full | Leaf onset in the northern hemisphere triggered by daytime temperature |
title_fullStr | Leaf onset in the northern hemisphere triggered by daytime temperature |
title_full_unstemmed | Leaf onset in the northern hemisphere triggered by daytime temperature |
title_short | Leaf onset in the northern hemisphere triggered by daytime temperature |
title_sort | leaf onset in the northern hemisphere triggered by daytime temperature |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4423217/ https://www.ncbi.nlm.nih.gov/pubmed/25903224 http://dx.doi.org/10.1038/ncomms7911 |
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