DOI: 10.1007/s11676-018-0788-1
论文题名: Larix olgensis growth–climate response between lower and upper elevation limits: an intensive study along the eastern slope of the Changbai Mountains, northeastern China
作者: Yu J. ; Liu Q.
刊名: Journal of Forestry Research
ISSN: 1007662X
出版年: 2020
卷: 31, 期: 1 语种: 英语
英文关键词: Changbai Mountains
; Dendrochronology
; Elevation gradient
; Larix olgensis
; Timberline
; Tree-ring width
Scopus关键词: climate change
; climate variation
; coniferous tree
; dendroecology
; forest ecosystem
; global climate
; growing season
; seasonality
; tree ring
; treeline
; Changbai Mountains
; China
; Larix gmelinii var. olgensis
英文摘要: Larix olgensis is a dominant tree species in the forest ecosystems of the Changbai Mountains of northeast China. To assess the growth response of this species to global climate change, we developed three tree-ring width and biomass chronologies across a range of elevations in the subalpine forests on the eastern slope of the Changbai Mountains. We used dendroclimatic analyses to study key factors limiting radial growth in L. olgensis and its variation with elevation. The statistical characteristics of chronologies suggested that elevation is a determinant of tree growth patterns in the study area. Response function analysis of chronologies with climate factors indicated that climate–growth relationships changed with increasing elevation: tree growth at high elevation was strongly limited by June temperatures of the previous year, and as elevation decreases, the importance of temperature decreased; tree radial growth at mid-elevation was mainly controlled by precipitation towards the end of the growing season of the current year. Biomass chronologies reflected a stronger climatic signal than tree-ring width chronologies. Spatial correlation with gridded climate data revealed that our chronologies contained a strong regional temperature signal for northeast China. Trees growing below timberline appeared to be more sensitive to climate, thus optimal sites for examining growth trends as a function of climate variation are considered to be just below timberline. Our study objective was to provide information for more accurate prediction of the growth response of L. olgensis to future climate change on the eastern slope of the Changbai Mountains, and to provide information for future climate reconstructions using this tree species in humid and semi humid regions. © 2018, Northeast Forestry University and Springer-Verlag GmbH Germany, part of Springer Nature. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/159589
Appears in Collections: 气候变化与战略
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作者单位: Forestry College, Beijing Forestry University, Tsinghua East Road No. 35, Haidian District, Beijing, 100083, China
Recommended Citation:
Yu J.,Liu Q.. Larix olgensis growth–climate response between lower and upper elevation limits: an intensive study along the eastern slope of the Changbai Mountains, northeastern China[J]. Journal of Forestry Research,2020-01-01,31(1)