DOI: 10.1016/j.gloplacha.2015.06.008
论文题名: Influence of non-climatic factors on the relationships between tree growth and climate over the Chinese Loess Plateau
作者: Fang K. ; Chen D. ; Gou X. ; D'Arrigo R. ; Davi N.
刊名: Global and Planetary Change
ISSN: 0921-8181
出版年: 2015
卷: 132 起始页码: 54
结束页码: 63
语种: 英语
英文关键词: Boosted Regression Tree (BRT)
; Climate-growth relationship
; Dendroclimatology
; Drought
; Tree age
Scopus关键词: Correlation methods
; Drought
; Landforms
; Photosynthesis
; Sediments
; Boosted regression trees
; Chinese Loess Plateau
; Climate-growth relationship
; Dendroclimatic reconstruction
; Dendroclimatology
; Hydraulic resistances
; Non-linear methods
; Tree age
; Forestry
; age determination
; dendroclimatology
; drought stress
; environmental factor
; growing season
; growth rate
; moisture content
; nonlinearity
; photosynthesis
; physiological response
; reconstruction
; semiarid region
; sensitivity analysis
; tree ring
; Climates
; Drought
; Mountains
; Photosynthesis
; Regression Analysis
; China
; Gansu
; Kongtong Mountain
; Liupan Mountains
; Loess Plateau
; Xiaolongshan
英文摘要: Modulations of non-climatic factors on climate-growth relationships can confound the interpretation of dendroclimatic reconstructions. Accordingly, we evaluated the influences of core direction, tree age, tree size, growth rate and species on the climate-growth relationships of 210 tree-ring cores from Kongtong Mountain and Xiaolong Mountain on the semi-arid Chinese Loess Plateau. We employed both the linear methods of correlation and response function analyses, and the nonlinear method of the Boosted Regression Trees (BRT). Most trees are sensitive to the moisture availability. Old trees are more sensitive to drought than young trees, which may be related to the intensified hydraulic resistances and reduced photosynthesis in response to drought. Tree cores taken from the southern direction are often more sensitive to drought than cores taken from other directions. The enhanced drought sensitivity for the southern cores may be possibly related to more branches and leaves for photosynthesis. Slow-growing trees show higher correlations with precipitation of the September prior to growth. This indicates that the extremely stressed, slow-growing trees tend to rely largely on nutrients produced prior to the growing season. For the reconstructions of annual drought in this region, we suggest collecting tree cores from the southern side of old trees growing at stressed sites. © 2015 Elsevier B.V. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84935474432&doi=10.1016%2fj.gloplacha.2015.06.008&partnerID=40&md5=4cbe8ab2d5cb2930f070eb0987e10793
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/11505
Appears in Collections: 全球变化的国际研究计划 气候变化与战略
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作者单位: Key Laboratory of Humid Subtropical Eco-geographical Process (Ministry of Education), College of Geographical Sciences, Fujian Normal University, Fuzhou, China
Recommended Citation:
Fang K.,Chen D.,Gou X.,et al. Influence of non-climatic factors on the relationships between tree growth and climate over the Chinese Loess Plateau[J]. Global and Planetary Change,2015-01-01,132.