DOI: 10.1016/j.foreco.2016.06.019
Scopus记录号: 2-s2.0-84973863151
论文题名: Light absorption and light-use efficiency of juvenile white spruce trees in natural stands and plantations
作者: Nelson A.S. ; Wagner R.G. ; Day M.E. ; Fernandez I.J. ; Weiskittel A.R. ; Saunders M.R.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2016
卷: 376 起始页码: 158
结束页码: 165
语种: 英语
英文关键词: Acadian forest
; Linear hierarchical model
; MAESTRA
; Natural stands
; Plantation
; Production ecology
Scopus关键词: Biomass
; Efficiency
; Electromagnetic wave absorption
; Forestry
; Hierarchical systems
; Light absorption
; Reforestation
; Above ground biomass
; Acadian forest
; Hierarchical model
; Light use efficiency
; MAESTRA
; Photosynthetically active radiation
; Plantation
; Silvicultural treatments
; Ecology
; aboveground biomass
; absorption
; biomass allocation
; canopy architecture
; community composition
; evergreen tree
; hierarchical system
; juvenile
; light availability
; light use efficiency
; photosynthetically active radiation
; plantation
; primary production
; stand structure
; Acadia
; Picea
; Picea glauca
英文摘要: Aboveground tree growth is influenced by light availability, light capture, and the efficiency captured light is converted into growth. All three factors are influenced by neighborhood species composition and stand structure and can be modified with silvicultural treatments. The objective was to examine the absorption of photosynthetically active radiation (APAR), light-use efficiency (LUE), and aboveground biomass growth of juvenile white spruce (Picea glauca (Moench) Voss) trees in plantations and planted in naturally regenerated stands with diverse species composition. Trees were sampled across a range of sizes, and measurements of white spruce and neighborhood trees were collected at ages seven and eight. Light absorption of individual trees was modeled with MAESTRA accounting for species-specific crown structures of neighboring trees. APAR increased linearly with leaf area in both treatments. The correlation was more influenced by neighborhood competition than self-shading, since self-shading was minimized by crown spread and height growth. Biomass growth increased with increasing APAR in both treatments, but growth for a given unit of APAR was greater in the natural stands, possibly due to greater belowground biomass allocation in plantations due to lower stand densities. LUE declined slightly across the range of tree size, which contrasts most other studies. The decline could be due to juvenile age of the trees and inherent slow growth of spruce species. © 2016. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64815
Appears in Collections: 影响、适应和脆弱性
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作者单位: Department of Forest, Rangeland and Fire Sciences, University of Idaho, 875 Perimeter Dr. MS 1133, Moscow, ID, United States; School of Forest Resources, University of Maine, 5755 Nutting Hall, Orono, ME, United States; School of Forest Resources and Climate Change Institute, University of Maine, Orono, ME, United States; Department of Forestry and Natural Resources, Purdue University, 715 W. State St., West Lafayette, IN, United States
Recommended Citation:
Nelson A.S.,Wagner R.G.,Day M.E.,et al. Light absorption and light-use efficiency of juvenile white spruce trees in natural stands and plantations[J]. Forest Ecology and Management,2016-01-01,376