DOI: 10.1016/j.foreco.2014.03.010
Scopus记录号: 2-s2.0-84899491933
论文题名: Survival probability of white spruce and trembling aspen in boreal pure and mixed stands experiencing self-thinning
作者: Reyes-Hernández V. ; Comeau P.G.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2014
卷: 323 起始页码: 105
结束页码: 113
语种: 英语
英文关键词: Boreal mixedwoods
; Density-dependent mortality
; One-sided competition
; Trembling aspen
; Two-sided competition
; White spruce
Scopus关键词: Probability
; Regression analysis
; Boreal mixedwoods
; Density-dependent
; Diameter-at-breast heights
; Individual characteristics
; Intraspecific competition
; Logistic regression models
; Trembling aspen
; White spruce
; Forestry
; boreal forest
; competition (ecology)
; coniferous forest
; diameter
; growth rate
; mixed forest
; mortality
; self thinning
; survival
; Forestry
; Picea Engelmannii
; Populus
; Probability
; Regression Analysis
; Alberta
; Canada
; Picea
; Picea glauca
; Populus
; Populus tremuloides
英文摘要: Tree mortality due to competition is one of the key drivers of forest succession in Canadian boreal mixedwood forests. We analyzed survival probability of trembling aspen (. Populus tremuloides Michx.) and white spruce (. Picea glauca (Moench) Voss.) trees and saplings, growing in pure and mixed stands experiencing self-thinning, in the Boreal Forest Natural Region of Alberta, Canada. Generalized logistic regression models were utilized to evaluate the effects of tree and stand characteristics on the survival probability of both species. Absolute size of the individuals, characterized by diameter at breast height, had a positive effect on the survival of both aspen and spruce. Aspen experienced decreasing survival with size, which is most likely linked to age rather than competition. Significant effects of basal area of trees larger than the subject tree indicated that one-sided inter- and intra-specific competition, rather than two-sided, is the primary driving force of competition-related mortality for both aspen and spruce. Periodic annual increment in diameter was a better predictor of survival than basal area of larger trees, indicating that growth rate is the most important individual characteristic that defines survival of both aspen and spruce in these self-thinning stands. © 2014 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65967
Appears in Collections: 影响、适应和脆弱性
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作者单位: Department of Renewable Resources, University of Alberta, 751 General Services Building, Edmonton, AB T6G 2H1, Canada; Colegio de Postgraduados-Campus Montecillo, 56230 Texcoco, Mexico
Recommended Citation:
Reyes-Hernández V.,Comeau P.G.. Survival probability of white spruce and trembling aspen in boreal pure and mixed stands experiencing self-thinning[J]. Forest Ecology and Management,2014-01-01,323