DOI: 10.1016/j.foreco.2015.03.031
Scopus记录号: 2-s2.0-84925988254
论文题名: Soil organic layer thickness influences the establishment and growth of trembling aspen (Populus tremuloides) in boreal forests
作者: Lafleur B. ; Cazal A. ; Leduc A. ; Bergeron Y.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2015
卷: 347 起始页码: 209
结束页码: 216
语种: 英语
英文关键词: Black spruce
; Forest fire
; Seed regeneration
; Soil physico-chemistry
; Suckers
Scopus关键词: Deforestation
; Forestry
; Reforestation
; Soils
; Black spruce
; Diameter-at-breast heights
; Forest fires
; Logistic regressions
; Physical and chemical soil properties
; Populus tremuloides
; Seed regenerations
; Suckers
; Sols
; abundance
; boreal forest
; coniferous tree
; deciduous tree
; forest fire
; germination
; growth rate
; regeneration
; seedling establishment
; soil organic matter
; stand structure
; Forest Fires
; Forests
; Picea Mariana
; Populus
; Regression Analysis
; Reproduction
; North America
; Picea mariana
; Populus tremuloides
英文摘要: In the North American boreal forest, the presence of aspen (Populus tremuloides Michx.) is thought to be constrained on sites where thick (>25cm) soil organic layers (SOL) prevail. Aspen can reproduce both by seeds and suckers, but it is still unknown how SOL thickness influences both modes of reproduction. In this study, we sought to determine how SOL thickness and chemistry in black spruce dominated stands influences aspen regeneration and growth. Aspen abundance was negatively related to SOL thickness and logistic regression indicated that the probability to detect an aspen declined from 30% at SOL=0cm to 10% at 30cm. Our results also indicated that aspen diameter at breast height was significantly negatively correlated with SOL thickness and black spruce abundance, and positively correlated with soil Ntot , Ca, CEC and pH. Finally, we failed to detect any significant effect of SOL on aspen mode of regeneration (i.e. seeds or suckers). Our study shows that through changes in physical and chemical soil properties, SOL accumulation equally hinders both aspen seedling germination and growth, and sucker development. © 2015 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65466
Appears in Collections: 影响、适应和脆弱性
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作者单位: Centre d'étude de la forêt, Université du Québec à Montréal, 141 Avenue du Président-Kennedy, Montréal, QC, Canada; Institut de recherche sur les forêts, Université du Québec en Abitibi-Témiscamingue, 445 boul. de l'Université, Rouyn-Noranda, QC, Canada
Recommended Citation:
Lafleur B.,Cazal A.,Leduc A.,et al. Soil organic layer thickness influences the establishment and growth of trembling aspen (Populus tremuloides) in boreal forests[J]. Forest Ecology and Management,2015-01-01,347