DOI: 10.1016/j.foreco.2017.07.043
Scopus记录号: 2-s2.0-85026526434
论文题名: Rapid warming forces contrasting growth trends of subalpine fir (Abies fabri) at higher- and lower-elevations in the eastern Tibetan Plateau
作者: Wang W. ; Jia M. ; Wang G. ; Zhu W. ; McDowell N.G.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2017
卷: 402 起始页码: 135
结束页码: 144
语种: 英语
英文关键词: Climate warming
; Eastern Tibetan Plateau
; Elevational gradient
; Subalpine mountain forest
; Tree radial growth
Scopus关键词: Climate change
; Landforms
; Population statistics
; Temperature
; Climate warming
; Eastern Tibetan plateau
; Elevational gradients
; Mountain forests
; Radial growth
; Forestry
; Abies fabri
; Abies lasiocarpa
英文摘要: 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. © 2017 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64149
Appears in Collections: 影响、适应和脆弱性
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作者单位: The Key Laboratory of Mountain Environment Evolution and Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, China; Pacific Northwest National Laboratory, Richland, WA, United States
Recommended Citation:
Wang W.,Jia M.,Wang G.,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,2017-01-01,402