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Rapid warming forces contrasting growth trends of subalpine fir (Abies fabri) at higher- and lower-elevations in the eastern Tibetan Plateau
Wenzhi Wang1,2; Min Jia1; Genxu Wang1; Wanze Zhu1; Nate G. McDowell2
Corresponding AuthorGenxu Wang
2017
Source PublicationFOREST ECOLOGY AND MANAGEMENT
ISSN0378-1127
EISSN1872-7042
Volume402Pages:135-144
SubtypeArticle
Abstract

Tree radial growth is expected to increase at higher elevations under climate warming, while lower elevation tree growth is expected to decline. However, numerous studies have found tree radial growth responds consistently to climate along elevational gradients. Here, we sampled five plots across the subalpine Abies fabri forest belt on Gongga Mountain in the eastern Tibetan Plateau to determine tree radial growth trends and responses to climate. Three commonly used detrending methods all consistently showed that tree radial growth at high elevation ( > 3100 m) increased, while tree growth declined at the lower elevations (2700 m-2900 m) over the last three decades. Increasing late-growing season temperature positively (p < 0.05) correlated to tree radial growth at higher elevations, but the sign of this relationship reversed to become negative at lower elevations. Moving-window correlation analyses indicated the difference between high and low elevations response to temperature variation increased strongly with warming. Placing our result into the global context, 62% of 39 published studies found that trees along elevation gradients respond divergently to warming, and that these are located in warmer and wetter regions of the Earth. Notably, 28% of studies found non-significant responses to temperature at both high and low elevations. Our findings in the subalpine mountain forest in the eastern Tibetan Plateau were consistent with the majority of published datasets, and imply increasing temperature benefit for tree populations at higher elevation, while warming dampens growth at lower elevations.

KeywordTree Radial Growth Climate Warming Elevational Gradient Subalpine Mountain Forest Eastern Tibetan Plateau
DOI10.1016/j.foreco.2017.07.043
Indexed BySCI
Language英语
Quartile2区
TOP
WOS IDWOS:000411534000013
Citation statistics
Cited Times:20[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/19121
Collection山地表生过程与生态调控重点实验室
Affiliation1.The Key Laboratory of Mountain Environment Evolution and Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China
2.Pacific Northwest National Laboratory, Richland, WA 99352, USA
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Wenzhi Wang,Min Jia,Genxu Wang,et al. Rapid warming forces contrasting growth trends of subalpine fir (Abies fabri) at higher- and lower-elevations in the eastern Tibetan Plateau[J]. FOREST ECOLOGY AND MANAGEMENT,2017,402:135-144.
APA Wenzhi Wang,Min Jia,Genxu Wang,Wanze Zhu,&Nate G. McDowell.(2017).Rapid warming forces contrasting growth trends of subalpine fir (Abies fabri) at higher- and lower-elevations in the eastern Tibetan Plateau.FOREST ECOLOGY AND MANAGEMENT,402,135-144.
MLA Wenzhi Wang,et al."Rapid warming forces contrasting growth trends of subalpine fir (Abies fabri) at higher- and lower-elevations in the eastern Tibetan Plateau".FOREST ECOLOGY AND MANAGEMENT 402(2017):135-144.
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