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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...

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Autores principales: 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
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Pub. Group 2015
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.
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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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