DOI: 10.1016/j.foreco.2015.08.029
Scopus记录号: 2-s2.0-84943407972
论文题名: Variations in carbon concentration, sequestration and partitioning among Betula platyphylla provenances
作者: Wang X.W. ; Weng Y.H. ; Liu G.F. ; Krasowski M.J. ; Yang C.P.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2015
卷: 358 起始页码: 344
结束页码: 352
语种: 英语
英文关键词: Adaptive variation
; C budgets
; Carbon concentration
; Carbon partitioning
; Carbon sequestration
; Genetic selection
Scopus关键词: Budget control
; Climate change
; Ecology
; Adaptive variation
; Carbon concentrations
; Carbon partitioning
; Carbon sequestration
; Genetic selection
; Forestry
; adaptation
; biomass allocation
; carbon budget
; carbon sequestration
; climate change
; concentration (composition)
; deciduous tree
; genetic analysis
; partitioning
; provenance trial
; China
; Betula pendula
; Betula platyphylla
英文摘要: Despite the economic and ecological importance of key carbon (C) traits (concentration, sequestration, and allocation to different tree components), there are few studies on their variation among populations of a tree species and the possible adaptive significance of these traits. We investigated differences in the C traits among 16 white birch populations grown in two provenance trials in northeastern China. Effects of provenance were significant for most combinations of C trait, tree portion, and trial site. Substantial differences among provenances were found in (1) C concentration in the bole wood and in bark, in fine roots, and at the whole tree scale; (2) C amount sequestered in each studied tree component and in the whole tree; and (3) ratios of C partitioning to bole wood, bole bark, leaves, and existing fine roots. Mostly, significant variations in C concentration and partitioning ratios were independent of provenance volume growth, while those in C amount were strongly positively correlated with volume growth. Summer climate at the provenance origin was the best predictor, of C concentration and allocation but clinal patterns in these traits were found for only some tree components. The C sequestration showed a clinal pattern following the mean annual temperature at the provenance origin. While this suggests an adaptive nature of C traits in white birch, site conditions and/or tree density act strongly on expression of these traits. Implications of this study to C budgeting, trading C credits, and to genetic selection are discussed. Our results may interest ecologists studying dynamics of ecosystems in times of climate change. © 2015 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65258
Appears in Collections: 影响、适应和脆弱性
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作者单位: State Key Laboratory of Forest Genetics and Tree Breeding, Northeast Forestry University, 26 Hexing Road, Harbin, China; School of Forestry and Biotechnology, Zhejiang A and F University, Lin'an, Hangzhou, Zhejiang, China; Faculty of Forestry and Environmental Management, University of New Brunswick, Fredericton, NB, Canada
Recommended Citation:
Wang X.W.,Weng Y.H.,Liu G.F.,et al. Variations in carbon concentration, sequestration and partitioning among Betula platyphylla provenances[J]. Forest Ecology and Management,2015-01-01,358