DOI: 10.1016/j.foreco.2016.05.041
Scopus记录号: 2-s2.0-84973307762
论文题名: Variation in total and volatile carbon concentration among the major tree species of the boreal forest
作者: Gao B. ; Taylor A.R. ; Chen H.Y.H. ; Wang J.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2016
卷: 375 起始页码: 191
结束页码: 199
语种: 英语
英文关键词: Boreal forest
; Carbon concentration
; Shade tolerance
; Tree ontogeny
; Volatile carbon
; Woody tissue type
Scopus关键词: Histology
; Tissue
; Boreal forests
; Carbon concentrations
; Shade tolerance
; Tissue types
; Tree ontogeny
; Forestry
; bark
; boreal forest
; carbon
; cells and cell components
; concentration (composition)
; ontogeny
; shade tolerance
; tree
; volatile element
; wood
; North America
英文摘要: Understanding variation in carbon (C) concentration of live trees is essential for quantifying forest C stocks and validating forest C accounting models. Previous studies in boreal forests have assumed 50% C concentration or focused on species-specific C concentration estimation based on samples taken mostly from stemwood tissue of large trees. Yet, little is known about differences in C concentration between woody tissues or among trees of different sizes nor about the effects of life-history traits, such as shade tolerance and the role of volatile C on total C concentration in live trees. In this study, we examined variation in total and volatile C concentration in bark and stemwood tissues for trees of different sizes for six major North American boreal tree species. We found that bark had significantly higher total C and volatile C concentrations than stemwood and that both total C and volatile C concentration significantly varied among tree species. The average total C concentrations were 56.2% in the bark and 50.5% in the stemwood, and the average volatile C concentration were 5.8% and 3.0% for bark and stemwood, respectively. Furthermore, total C and volatile C concentration in stemwood and bark of almost all shade-intolerant species increased with tree size, whereas those of shade-tolerant species showed negative or neutral size-associated change. Our results show that volatile C concentration is a key driver of variation in total C concentration and highlights the importance of considering variation in C concentration when quantifying forest C stocks, which has important consequences for predicting future global C emissions scenarios. © 2016 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64848
Appears in Collections: 影响、适应和脆弱性
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作者单位: Faculty of Natural Resources Management, Lakehead University, 955 Oliver Road, Thunder Bay, ON, Canada; Natural Resources Canada, Canadian Forest Service - Atlantic Forestry Centre, 1350 Regent Street, P.O. Box 4000, Fredericton, NB, Canada
Recommended Citation:
Gao B.,Taylor A.R.,Chen H.Y.H.,et al. Variation in total and volatile carbon concentration among the major tree species of the boreal forest[J]. Forest Ecology and Management,2016-01-01,375