DOI: 10.1016/j.foreco.2016.07.031
Scopus记录号: 2-s2.0-84994512368
论文题名: Ecogeographic variation in black spruce wood properties across Quebec's boreal forest
作者: Giroud G. ; Bégin J. ; Defo M. ; Ung C.-H.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2016
卷: 378 起始页码: 131
结束页码: 143
语种: 英语
英文关键词: Basic wood density
; Ecogeographic variation in black spruce clear wood properties
; Mature fiber length
; Microfibril angle
; Modulus of elasticity
; Two-stage modeling approach for mapping purposes
Scopus关键词: Elastic moduli
; Fibers
; Forestry
; Hardwoods
; Mapping
; Mean square error
; Mechanical properties
; Vegetation
; Basic wood density
; Black spruce
; Fiber length
; Microfibril angles
; Two stage model
; Wood
; boreal forest
; coniferous tree
; elastic modulus
; elasticity
; forest management
; geographical variation
; growth rate
; instrumentation
; performance assessment
; vegetation type
; wood
; Elasticity
; Mapping
; Wood Density
; Wood Properties
; Canada
; Quebec [Canada]
; Abies balsamea
; Picea mariana
英文摘要: Ecogeographic variation in black spruce clear wood properties was investigated for the two main vegetation types of the managed boreal forest of the province of Quebec, Canada. In total, 409 co-dominant and dominant trees from 82 mature stands were sampled. Basic wood density, modulus of elasticity and microfibril angle were measured using SilviScan. Mature fiber length was determined using a high-resolution Fiber Quality Analyzer. Wood growing in pure black spruce stands had longer mature fibers, a significantly denser wood with better mechanical characteristics than the wood growing in mixed stands with balsam fir. All wood properties were clearly influenced by radial growth and species composition. Given the limited number of sample plots for mapping purposes, a two-stage modeling approach was assessed to predict stand-level estimates of black spruce clear wood properties. This scaling-up method, based on field measurements and ring data from 3350 inventory plots, has improved the performance of all models. Stand-level models explained 47%, 57%, 63% and 63% of variance in wood density, modulus of elasticity, microfibril angle and mature fiber length respectively with estimated root mean square errors of 8.9 kg/m3, 0.52 GPa, 0.60° and 0.06 mm. An east-west gradient in black spruce clear wood properties was revealed as possibly the by-product of the change in relative proportions of both studied vegetation types across the study area. The results indicate that the black spruce wood from western regions of the managed boreal forest has a better potential for producing pulp and paper, lumber or engineered products due to its longer mature fibers and higher mechanical properties. © 2016 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64756
Appears in Collections: 影响、适应和脆弱性
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作者单位: Dépt. des Sciences du bois et de la forêt, Faculté de foresterie, de géographie et de géomatique, Université Laval, Quebec, Canada; Natural Resources Canada, Canadian Forest Service, Canadian Wood Fibre Centre, Laurentian Forestry Centre, Canada
Recommended Citation:
Giroud G.,Bégin J.,Defo M.,et al. Ecogeographic variation in black spruce wood properties across Quebec's boreal forest[J]. Forest Ecology and Management,2016-01-01,378