[article] | Titre : |
Photoperiod and temperature as dominant environmental drivers triggering secondary growth resumption in Northern Hemisphere conifers |
| Type de document : |
Article/Communication |
| Auteurs : |
Jian-Guo Huang, Auteur ; Qianqian Ma, Auteur ; Sergio Rossi, Auteur ; Franco Biondi, Auteur ; Annie Deslauriers, Auteur ; Patrick Fonti, Auteur ; Eryuan Liang, Auteur ; Harri Mäkinen, Auteur ; et al., Auteur ; Henri E. Cuny  , Auteur ; et al., Auteur |
| Année de publication : |
2020 |
| Projets : | ARBRE / | | Article en page(s) : |
pp 20645 - 20652 |
| Note générale : |
bibliographie
This work was funded by the National Natural Science Foundation of China (Grants 41861124001, 41661144007, and 31971499), the International Collaborative Key Project of the Chinese Academy of Sciences (CAS) (Grant GJHZ1752), GuangdongNatural Science Foundation (Grant 2019B121202007), and CAS President’s International Fellowship Initiative (Grant 2019VBA0049). Other funding agencies included the Austrian Science Fund (Grant P22280-B16; GrantP25643-B16), Consortium de Recherche sur la Forêt Boréale Commerciale, Fonds de Recherche sur la Nature et les Technologies du Québec, Forêt d’Enseignement et de Recherche Simon couche, Natural Sciences and Engineering Research Council of Canada, Slovenian Research Agency (Young Researchers’ Program, Programs P4-0015 and P4-0107, and Project Z4-7318), Italian Ministry of Education, University and Research–PRIN 2002(Grant 2002075152) and 2005 (Grant 2005072877), Swiss National Science Foundation (Projects INTEGRAL-121859 and LOTFOR-150205), French National Research Agency (ANR) as part of the “Investissements d’Avenir” program (Grant ANR-11-LABX-0002-01, Laboratory of Excellence for Advanced Research on the Biology of Tree and Forest Ecosystems), Academy of Finland (Grants 250299, 257641, and 265504), National Natural Science Foundation of China (Grant 41525001), Grant Agency of Czech Republic (Grant P504/11/P557), and Provincia Autonoma di Trento (Project “SOFIE 2,”3012/2007). F.B. was supported, in part, by the National Science Foundation under Grant AGS-P2C2-1903561. The cooperation among authors was supported by the European Union Cooperation in Science and Technology Action FP1106STReES. |
| Langues : |
Anglais (eng) |
| Descripteur : |
[Termes descripteurs IGN] formation du bois
[Termes descripteurs IGN] hémisphère Nord
[Termes descripteurs IGN] phénologie
[Termes descripteurs IGN] pinophyta
[Termes descripteurs IGN] puits de carbone
[Termes descripteurs IGN] température au sol
[Vedettes matières IGN] Végétation et changement climatique
|
| Résumé : |
(auteur) Wood formation consumes around 15% of the anthropogenic CO2 emissions per year and plays a critical role in long-term sequestration of carbon on Earth. However, the exogenous factors driving wood formation onset and the underlying cellular mechanisms are still poorly understood and quantified, and this hampers an effective assessment of terrestrial forest productivity and carbon budget under global warming. Here, we used an extensive collection of unique datasets of weekly xylem tissue formation (wood formation) from 21 coniferous species across the Northern Hemisphere (latitudes 23 to 67°N) to present a quantitative demonstration that the onset of wood formation in Northern Hemisphere conifers is primarily driven by photoperiod and mean annual temperature (MAT), and only secondarily by spring forcing, winter chilling, and moisture availability. Photoperiod interacts with MAT and plays the dominant role in regulating the onset of secondary meristem growth, contrary to its as-yet-unquantified role in affecting the springtime phenology of primary meristems. The unique relationships between exogenous factors and wood formation could help to predict how forest ecosystems respond and adapt to climate warming and could provide a better understanding of the feedback occurring between vegetation and climate that is mediated by phenology. Our study quantifies the role of major environmental drivers for incorporation into state-of-the-art Earth system models (ESMs), thereby providing an improved assessment of long-term and high-resolution observations of biogeochemical cycles across terrestrial biomes. |
| Numéro de notice : |
A2020-329 |
| Affiliation des auteurs : |
IGN+Ext (2020- ) |
| Thématique : |
FORET |
| Nature : |
Article |
| nature-HAL : |
ArtAvecCL-RevueIntern |
| DOI : |
10.1073/pnas.2007058117 |
| En ligne : |
https://doi.org/10.1073/pnas.2007058117 |
| Format de la ressource électronique : |
URL article |
| Permalink : |
https://documentation.ensg.eu/index.php?lvl=notice_display&id=96865 |
in Proceedings of the National Academy of Sciences of the United States of America PNAS > vol 117 n° 34 (August 2020) . - pp 20645 - 20652
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