气候变化领域集成服务门户(CCPortal): Spring phenology at different altitudes is becoming more uniform under global warming in Europe

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DOI	10.1111/gcb.14288
	Spring phenology at different altitudes is becoming more uniform under global warming in Europe
	Chen, Lei; Huang, Jian-Guo; Ma, Qianqian; Hanninen, Heikki; Rossi, Sergio; Piao, Shilong; Bergeron, Yves
通讯作者	Huang, JG (通讯作者)
发表日期	2018
ISSN	1354-1013
EISSN	1365-2486
起始页码	3969
结束页码	3975
卷号	24 期号:9
英文摘要	Under current global warming, high-elevation regions are expected to experience faster warming than low-elevation regions. However, due to the lack of studies based on long-term large-scale data, the relationship between tree spring phenology and the elevation-dependent warming is unclear. Using 652k records of leaf unfolding of five temperate tree species monitored during 1951-2013 insitu in Europe, we discovered a nonlinear trend in the altitudinal sensitivity (S-A, shifted days per 100m in altitude) in spring phenology. A delayed leaf unfolding (2.7 +/- 0.6days per decade) was observed at high elevations possibly due to decreased spring forcing between 1951 and 1980. The delayed leaf unfolding at high-elevation regions was companied by a simultaneous advancing of leaf unfolding at low elevations. These divergent trends contributed to a significant increase in the S-A (0.36 +/- 0.07days 100/m per decade) during 1951-1980. Since 1980, the S-A started to decline with a rate of -0.32 +/- 0.07days 100/m per decade, possibly due to reduced chilling at low elevations and improved efficiency of spring forcing in advancing the leaf unfolding at high elevations, the latter being caused by increased chilling. Our results suggest that due to both different temperature changes at the different altitudes, and the different tree responses to these changes, the tree phenology has shifted at different rates leading to a more uniform phenology at different altitudes during recent decades.
关键词	CLIMATE-CHANGE TREES
英文关键词	climate change; elevation-dependent warming; leaf unfolding; phenology
语种	英语
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
WOS类目	Biodiversity Conservation ; Ecology ; Environmental Sciences
WOS记录号	WOS:000441746900009
来源期刊	GLOBAL CHANGE BIOLOGY
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259323
推荐引用方式 GB/T 7714	Chen, Lei,Huang, Jian-Guo,Ma, Qianqian,et al. Spring phenology at different altitudes is becoming more uniform under global warming in Europe[J]. 中国科学院青藏高原研究所,2018,24(9).
APA	Chen, Lei.,Huang, Jian-Guo.,Ma, Qianqian.,Hanninen, Heikki.,Rossi, Sergio.,...&Bergeron, Yves.(2018).Spring phenology at different altitudes is becoming more uniform under global warming in Europe.GLOBAL CHANGE BIOLOGY,24(9).
MLA	Chen, Lei,et al."Spring phenology at different altitudes is becoming more uniform under global warming in Europe".GLOBAL CHANGE BIOLOGY 24.9(2018).