DOI: 10.1111/gcb.14496
Scopus记录号: 2-s2.0-85056448241
论文题名: Long-term changes in the impacts of global warming on leaf phenology of four temperate tree species
作者: Chen L. ; Huang J.-G. ; Ma Q. ; Hänninen H. ; Tremblay F. ; Bergeron Y.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2019
卷: 25, 期: 3 起始页码: 997
结束页码: 1004
语种: 英语
英文关键词: chilling units
; climate warming
; early and late successional species
; exotic species
; phenology
; photoperiod
英文摘要: Contrary to the generally advanced spring leaf unfolding under global warming, the effects of the climate warming on autumn leaf senescence are highly variable with advanced, delayed, and unchanged patterns being all reported. Using one million records of leaf phenology from four dominant temperate species in Europe, we investigated the temperature sensitivities of spring leaf unfolding and autumn leaf senescence (S T , advanced or delayed days per degree Celsius). The S T of spring phenology in all of the four examined species showed an increase and decrease during 1951–1980 and 1981–2013, respectively. The decrease in the S T during 1981–2013 appears to be caused by reduced accumulation of chilling units. As with spring phenology, the S T of leaf senescence of early successional and exotic species started to decline since 1980. In contrast, for late successional species, the S T of autumn senescence showed an increase for the entire study period from 1951 to 2013. Moreover, the impacts of rising temperature associated with global warming on spring leaf unfolding were stronger than those on autumn leaf senescence. The timing of leaf senescence was positively correlated with the timing of leaf unfolding during 1951–1980. However, as climate warming continued, the differences in the responses between spring and autumn phenology gradually increased, so that the correlation was no more significant during 1981–2013. Our results further suggest that since 2000, due to the decreased temperature sensitivity of leaf unfolding the length of the growing season has not increased any more. These finding needs to be addressed in vegetation models used for assessing the effects of climate change. © 2018 John Wiley & Sons Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/117501
Appears in Collections: 气候变化与战略
There are no files associated with this item.
Recommended Citation:
Chen L.,Huang J.-G.,Ma Q.,et al. Long-term changes in the impacts of global warming on leaf phenology of four temperate tree species[J]. Global Change Biology,2019-01-01,25(3)