IMHE OpenIR  > 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
Corresponding AuthorSamuli HELAMA ; Raimo SUTINEN
2016-01
Source PublicationJournal of Mountain Science
ISSN1672-6316
Volume13Issue:1Pages:1-12
Subtype期刊论文
AbstractA 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.
KeywordAnnual Temperature Cycle Climatic Extremes Dendroclimatology Plant–climate Interactions Temperature Seasonality Tree-ring
DOI10.1007/s11629-015-3665-9
Indexed BySCI
Language英语
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/13871
CollectionJournal of Mountain Science_Journal of Mountain Science-2016_Vol13 No.1
Recommended Citation
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.
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