DOI: 10.1016/j.foreco.2012.09.042
Scopus记录号: 2-s2.0-84870164334
论文题名: Static and dynamic maximum size-density relationships for mixed trembling aspen and white spruce stands in western Canada
作者: Reyes-Hernandez V. ; Comeau P.G. ; Bokalo M.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2013
卷: 289 起始页码: 300
结束页码: 311
语种: 英语
英文关键词: Boreal mixedwoods
; Dynamic thinning line
; Maximum size-density relationships
; Self-thinning
; Static thinning line
Scopus关键词: Boreal mixedwoods
; Dynamic thinning
; Maximum size-density relationships
; Self-thinning
; Static thinning line
; Soil moisture
; Forestry
; biological invasion
; boreal forest
; deciduous forest
; forest management
; mixed forest
; population density
; population size
; self thinning
; soil moisture
; soil nutrient
; stand structure
; Forestry
; Moisture
; Soil
; Thinning
; Alberta
; Canada
; Picea glauca
; Populus
; Populus tremuloides
英文摘要: We examine maximum size-density relationships (MSDR) of pure and mixed stands of trembling aspen (Populus tremuloides Michx.) and white spruce (Picea glauca (Moench) Voss.) in the Boreal Forest Natural Region of Alberta, Canada. Stochastic frontier function regression was used to estimate the MSDR species boundary or static line and mixed models were used to investigate how individual stands self-thin (dynamic thinning line). Effects of age, stand composition, soil nutrient regime and soil moisture regime were also evaluated. A steeper slope was obtained for the dynamic than for the static thinning line, and both MSDR lines slopes are statistically different from the theoretical value proposed by Reineke (1933). The deciduous component (percent of stand total basal area that is deciduous) has a negative effect on the slope and a positive effect on the intercept of the static line. Composition (increasing aspen basal area) also has a negative effect on the intercept of the dynamic line although no effect was detected on the slope. Soil nutrient regime has a positive effect on the intercept and a negative effect on the slope of the dynamic thinning line. Results suggest that local differences such as site quality and stand composition are important factors in determining maximum size-density relationships for these mixedwoods stands and how individual stands develop and self-thin. © 2012 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/66812
Appears in Collections: 影响、适应和脆弱性
There are no files associated with this item.
作者单位: Department of Renewable Resources, University of Alberta, 751 General Services Building, Edmonton, AB, T6G 2H1, Canada
Recommended Citation:
Reyes-Hernandez V.,Comeau P.G.,Bokalo M.. Static and dynamic maximum size-density relationships for mixed trembling aspen and white spruce stands in western Canada[J]. Forest Ecology and Management,2013-01-01,289