Inter- and intra-seasonal effects of temperature variation on radial growth of alpine treeline Norway spruce

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > Journal of Mountain Science > Journal of Mountain Science-2016 > Vol13 No.1

	Inter- and intra-seasonal effects of temperature variation on radial growth of alpine treeline Norway spruce
	Samuli HELAMA; Raimo SUTINEN
刊名	Journal of Mountain Science
	2016-01
卷号	13 期号:1 页码:1-12
关键词	Annual temperature cycle Climatic extremes Dendroclimatology Plant–climate interactions Temperature seasonality Tree-ring
ISSN号	1672-6316
通讯作者	Samuli HELAMA ; Raimo SUTINEN
英文摘要	A widely accepted standpoint contends that plant growth near the cold edge of the species range, such as treelines, does not depend on the annual temperature seasonality (i.e. difference between maximum and minimum temperature values) but rather on the warmth of summer season. In contrast to this expectation, we show that the growth of treeline Norway spruce (Picea abies) is well explained by temperature seasonality as a single climatic determinant. To do so, the tree-ring data of spruce trees growing on alpine treeline in Lapland was compared with long climate records. Biennial time-series of temperature seasonality capture both the decadal and abrupt growth fluctuations with a correlation coefficient of r = 0.601. We also show that the archetypal association between summer temperature and treeline tree growth may in fact be by far a more complex relationship than previously thought. Spruce growth appears responsive to late-June (r = 0.494) and mid-July (r = 0.310) temperatures but unresponsive to temperatures during the early July, that is, during the grand period of the tracheid formation. Climatic warming may enhance the treeline spruce growth unless the warming is concentrated on unresponsive interval in the midst of the growing season. Water relations did not play significant role as agents of P. abies growth.
收录类别	SCI
语种	英语
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/13871]
专题	成都山地灾害与环境研究所_Journal of Mountain Science _Journal of Mountain Science-2016_Vol13 No.1
推荐引用方式 GB/T 7714	Samuli HELAMA,Raimo SUTINEN. Inter- and intra-seasonal effects of temperature variation on radial growth of alpine treeline Norway spruce[J]. Journal of Mountain Science,2016,13(1):1-12.
APA	Samuli HELAMA,&Raimo SUTINEN.(2016).Inter- and intra-seasonal effects of temperature variation on radial growth of alpine treeline Norway spruce.Journal of Mountain Science,13(1),1-12.
MLA	Samuli HELAMA,et al."Inter- and intra-seasonal effects of temperature variation on radial growth of alpine treeline Norway spruce".Journal of Mountain Science 13.1(2016):1-12.