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Growth variation in Abies georgei var. smithii along altitudinal gradients in the Sygera Mountains, southeastern Tibetan Plateau
Liang E. Y.; Wang Y. F.; Xu Y.; Liu B. M.; Shao X.
Source PublicationTrees-Structure and Function
2010
Volume24
Issue2
Pages363-373
KeywordTree-ring Growth Variation Abies Georgei Var. Smithi Altitudinal Gradients Sygera Mountains Southeastern Tibetan Plateau Tree-ring Characteristics Fagus-syL.atica L. Radial Growth Temperature Reconstruction Precipitation Variation Climatic Variability Northwestern China Picea-crassifolia Qinghai Province Tatra Mountains
AbstractA network of nine Smith fir (Abies georgei var. smithii) ring-width chronologies was constructed from sites ranging in elevation from 3,550 to 4,390 m above sea level (a.s.l.) in the Sygera Mountains, southeastern Tibetan Plateau. High-elevation trees had lower growth rates than did low-elevation trees. The mean tree-ring series intercorrelation (RBAR) increased with elevation. Principal component analysis identified three elevation zones (around 3,600, 3,800, and > 4,200 m a.s.l.) with distinctive tree-ring growth patterns. Five chronologies with elevation > 4,200 m a.s.l. were highly correlated. Overall, the initiation of tree-ring growth in Smith fir is controlled by common climatic signals, such as July minimum temperature, across a broad altitudinal range. Precipitation was not a growth-limiting factor across stands. Regardless of differences in stand elevation, topographical aspect, and tree age, the radial growth of Smith fir trees was markedly similar in response to common climatic signals, perhaps as a result of the relatively high-elevation of these forests (above 3,550 m a.s.l.) and the abundant summer monsoon rainfall. In addition, radial tree growth along the altitudinal gradients was indicative of a recent warming trend on the southeastern Tibetan Plateau.
Indexed BySCI
Language英语
ISSN0931-1890
Document TypeSCI/SSCI论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/23554
Collection历年回溯文献
Recommended Citation
GB/T 7714
Liang E. Y.,Wang Y. F.,Xu Y.,et al. Growth variation in Abies georgei var. smithii along altitudinal gradients in the Sygera Mountains, southeastern Tibetan Plateau. 2010.
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