DOI: 10.1016/j.foreco.2016.04.015
Scopus记录号: 2-s2.0-84962870282
论文题名: The relationship between trunk - and twigwood density shifts with tree size and species stature
作者: He D. ; Deane D.C.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2016
卷: 372 起始页码: 137
结束页码: 142
语种: 英语
英文关键词: Species stature
; Trait covariation
; Tree size
; Trunk
; Twig
; Wood density
Scopus关键词: Hardwoods
; Wood
; Covariation
; Species stature
; Tree size
; Trunk
; Twig
; Wood density
; Forestry
; biometry
; evergreen forest
; knowledge
; morphology
; population density
; shoot
; stand structure
; woody plant
; Forests
; Stems
; Wood Density
英文摘要: The functional significance of wood density in tree species is widely recognized but the relationship between trunk- and twigwood density, along with any shifts due to tree size and species stature, are as yet poorly understood. We analyzed paired trunk- and twigwood samples from 674 trees, representing 71 species in a subtropical evergreen forest to fill this knowledge gap. We found that larger tree size (i.e. diameter) results in denser trunkwood but lighter twigwood, whereas species stature affects only trunkwood negatively. Trunk- and twigwood density did not vary consistently with tree size and species stature, suggesting some functional divergence between the two locations. Generally, trunk- and twigwood density scaled positively and isometrically, with trunkwood being on average 8.3% denser than twigwood. However, there was a systematic increase in the relative difference in their densities from 2% to 15% across tree size groups. The relationship between trunk- and twigwood density overall is moderately strong (R2 = 0.3-0.6), but depends on both tree size and stature, becoming weaker for larger size and taller stature groups. Collectively, this study highlights the role of plant size in shaping wood density variation and coordination. © 2016 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64914
Appears in Collections: 影响、适应和脆弱性
There are no files associated with this item.
作者单位: School of Ecology and Evolution, Sun Yat-Sen University, Guangzhou, China; The Environment Institute and the School of Biological Sciences, The University of Adelaide, Adelaide, SA, Australia; SYSU-Alberta Joint Lab for Biodiversity Conservation, State Key Laboratory of Biocontrol, Sun Yat-sen University, Guangzhou, China
Recommended Citation:
He D.,Deane D.C.. The relationship between trunk - and twigwood density shifts with tree size and species stature[J]. Forest Ecology and Management,2016-01-01,372