DOI: 10.1016/j.foreco.2013.12.017
Scopus记录号: 2-s2.0-84891723097
论文题名: Effect of species composition on the production rate and efficiency of young Picea glauca-Populus tremuloides forests
作者: Groot A. ; Adhikary S. ; Sharma M. ; Luckai N. ; Wayne Bell F. ; Larocque G.R.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2014
卷: 315 起始页码: 1
结束页码: 11
语种: 英语
英文关键词: Boreal mixedwoods
; Forest production
; Picea glauca
; Populus tremuloides
; Production efficiency
; Species mixture
Scopus关键词: Boreal mixedwoods
; Forest production
; Picea glauca
; Populus tremuloides
; Production efficiency
; Species mixtures
; Efficiency
; Forestry
; biomass
; boreal forest
; facilitation
; growth rate
; leaf area index
; light
; mixed forest
; resource use
; species richness
; stem
; tree
; Forest Products
; Picea Glauca
; Populus Tremuloides
; Softwoods
; Species Identification
英文摘要: Stand stem volume growth, aboveground tree biomass growth, and site occupancy were measured in 20-year-old mixed stands dominated by white spruce (Picea glauca [Moench] Voss) and trembling aspen (Populus tremuloides Michx.) to examine the effects of species composition on the rate and efficiency of forest production. Measures of site occupancy derived from Plant Canopy Analyzer data indicated that sample plots were fully occupied, and that leaf area index and light interception increased with increasing softwood (SW) proportion. Relationships between site occupancy and SW proportion differed among occupancy metrics, suggesting that basal area, stand density index, and crown area index do not adequately represent use of the light resource. No significant effect of species proportion on the rate of volume or biomass production was detected, contradicting the hypothesis that competitive reduction and facilitation might increase the production of mixed stands. Production efficiency based on light interception for both stand components combined varied weakly with SW proportion. Efficiency metrics based on surrogates for light interception showed differing patterns with SW proportion, underscoring the need for caution in interpreting these metrics in relation to resource use. © 2013. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/66114
Appears in Collections: 影响、适应和脆弱性
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作者单位: Natural Resources Canada, Canadian Forest Service, Canadian Wood Fibre Centre, 1219 Queen St. E., Sault Ste. Marie, ON P6A 2E5, Canada; Faculty of Natural Resources Management, Lakehead University, 955 Oliver Road, Thunder Bay, ON P7J 1B4, Canada; Ontario Forest Research Institute, Ontario Ministry of Natural Resources, 1235 Queen St. E., Sault Ste. Marie, ON P6A 2E5, Canada; Natural Resources Canada, Canadian Forest Service, Laurentian Forestry Centre, 1055 du P.E.P.S., POB 10380, Stn. Ste-Foy, Quebec, QC G1V 4C7, Canada
Recommended Citation:
Groot A.,Adhikary S.,Sharma M.,et al. Effect of species composition on the production rate and efficiency of young Picea glauca-Populus tremuloides forests[J]. Forest Ecology and Management,2014-01-01,315