(Iowa State University. Department of Geological and Atmospheric Sciences)
(Iowa State University. Department of Geological and Atmospheric Sciences)
(Oak Ridge National Laboratory. Climate Change Science Institute)
(Northern Arizona University. School of Informatics, Computing and Cyber Systems)
(Beijing Normal University. College of Water Sciences)
| Data: |
2021 |
| Resum: |
Vegetation phenology in spring has substantially advanced under climate warming, consequently shifting the seasonality of ecosystem process and altering biosphere-atmosphere feedbacks. However, whether and to what extent photoperiod (i. e. , daylength) affects the phenological advancement is unclear, leading to large uncertainties in projecting future phenological changes. Here we examined the photoperiod effect on spring phenology at a regional scale using in situ observation of six deciduous tree species from the Pan European Phenological Network during 1980-2016. We disentangled the photoperiod effect from the temperature effect (i. e. , forcing and chilling) by utilizing the unique topography of the northern Alps of Europe (i. e. , varying daylength but uniform temperature distribution across latitudes) and examining phenological changes across latitudes. We found prominent photoperiod-induced shifts in spring leaf-out across latitudes (up to 1. 7 days per latitudinal degree). Photoperiod regulates spring phenology by delaying early leaf-out and advancing late leaf-out caused by temperature variations. Based on these findings, we proposed two phenological models that consider the photoperiod effect through different mechanisms and compared them with a chilling model. We found that photoperiod regulation would slow down the advance in spring leaf-out under projected climate warming and thus mitigate the increasing frost risk in spring that deciduous forests will face in the future. Our findings identify photoperiod as a critical but understudied factor influencing spring phenology, suggesting that the responses of terrestrial ecosystem processes to climate warming are likely to be overestimated without adequately considering the photoperiod effect. |
| Ajuts: |
European Commission 610028
|
| Nota: |
We acknowledge the E-OBS dataset from the EU-FP6 project UERRA (http://www.uerra.eu) and the Copernicus Climate Change Service, and the data providers in the ECA&D project (https://www.ecad.eu). We also acknowledge all members of the PEP725 project for providing the phenological data. |
| Drets: |
Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original.  |
| Llengua: |
Anglès |
| Document: |
Article ; recerca ; Versió publicada |
| Matèria: |
Chilling ;
Climate change ;
Daylength ;
Phenological model ;
Spring leaf-out ;
Temperature |
| Publicat a: |
Global change biology, Vol. 27, issue 12 (June 2021) , p. 2914-2927, ISSN 1365-2486 |
| Obra relacionada: |
Lin Meng, Yuyu Zhou, Lianhong Gu, Andrew D. Richardson, Josep Peñuelas, Yulan Fu, Yeqiao Wang, G. Asrar, Hans J. De Boeck, Jiafu Mao, Yongguang Zhang, Zhuosen Wang. «Corrigendum to : Photoperiod decelerates the advance of spring phenology of six deciduous tree species under climate warming». Global change biology, Vol. 28, issue 23 (December 2022), p. 7154
Lin Meng, Yuyu Zhou, Lianhong Gu, Andrew D. Richardson, Josep Peñuelas, Yulan Fu, Yeqiao Wang, G. Asrar, Hans J. De Boeck, Jiafu Mao, Yongguang Zhang, Zhuosen Wang. «Corrigendum to : Photoperiod decelerates the advance of spring phenology of six deciduous tree species under climate warming». Global change biology, Vol. 29, issue 3 (February 2023), p. 921 |
visitant ::
identificació
(Iowa State University. Department of Geological and Atmospheric Sciences)
