气候变化领域集成服务门户(CCPortal): Tree growth at the limits: the response of multiple conifers to opposing climatic constraints along an elevational gradient in the Alps

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DOI	10.3389/ffgc.2024.1332941
	Tree growth at the limits: the response of multiple conifers to opposing climatic constraints along an elevational gradient in the Alps
	Obojes, Nikolaus; Buscarini, Serena; Meurer, Armin Konrad; Tasser, Erich; Oberhuber, Walter; Mayr, Stefan; Tappeiner, Ulrike
发表日期	2024
EISSN	2624-893X
起始页码	7
卷号	7
英文摘要	Introduction Climate change affects the vitality of mountain forests through increasing temperatures and decreasing water availability due to changing precipitation patterns, earlier snowmelt, and increasing evaporative demand. Depending on species characteristics, tree growth might therefore increase in cold habitats near the forest line but decrease in water-limited conditions at low elevation.Methods We analyzed the tree-ring widths of five conifers (Picea abies, Larix decidua, Pinus sylvestris, Pinus nigra, and Pinus cembra) along an elevational gradient from 1,000 m to 2,320 m above sea level (a.s.l.) in Vinschgau/Val Venosta Valley in Northern Italy, one of the driest regions of the Alps (mean annual precipitation of 682 mm at 1,310 m a.s.l.).Results Our aim was to estimate the species-specific growth response to changing climate conditions along an elevational gradient. At low elevations, we observed a significant response to water availability not only during the actual growing season but also throughout the previous autumn for all species present. At mid-elevation, the correlation coefficients to precipitation and drought indices (SPEI) were highest for Picea abies. At high elevations, the positive correlation of growth with temperature was smaller than expected for Pinus cembra. In contrast, Larix decidua responded positively to temperature and grew faster in recent decades.Discussion Considering that a further increase in temperatures will reduce plant water availability during the growing season, our space-for-time approach provides an outlook on future growth conditions of conifers in larger regions of the European Alps. Water limitation will affect tree growth and vitality not only at low elevation in the valleys but also at mid elevation on mountain slopes, potentially impacting timber production and protective and recreative functions of forests. Near the forest line, the different capabilities of tree species to benefit from higher temperatures might lead to changes in species composition.
英文关键词	dendroecology; tree-ring analysis; climate change; mountain forests; drought; temperature gradient; precipitation gradient
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Forestry
WOS类目	Ecology ; Forestry
WOS记录号	WOS:001187178800001
来源期刊	FRONTIERS IN FORESTS AND GLOBAL CHANGE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/290942
作者单位	European Academy of Bozen-Bolzano; University of Innsbruck; University of Innsbruck
推荐引用方式 GB/T 7714	Obojes, Nikolaus,Buscarini, Serena,Meurer, Armin Konrad,et al. Tree growth at the limits: the response of multiple conifers to opposing climatic constraints along an elevational gradient in the Alps[J],2024,7.
APA	Obojes, Nikolaus.,Buscarini, Serena.,Meurer, Armin Konrad.,Tasser, Erich.,Oberhuber, Walter.,...&Tappeiner, Ulrike.(2024).Tree growth at the limits: the response of multiple conifers to opposing climatic constraints along an elevational gradient in the Alps.FRONTIERS IN FORESTS AND GLOBAL CHANGE,7.
MLA	Obojes, Nikolaus,et al."Tree growth at the limits: the response of multiple conifers to opposing climatic constraints along an elevational gradient in the Alps".FRONTIERS IN FORESTS AND GLOBAL CHANGE 7(2024).