DOI: 10.1016/j.foreco.2016.11.015
Scopus记录号: 2-s2.0-84995920177
论文题名: Plasticity of tree architecture through interspecific and intraspecific competition in a young experimental plantation
作者: Van de Peer T. ; Verheyen K. ; Kint V. ; Van Cleemput E. ; Muys B.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2017
卷: 385 起始页码: 1
结束页码: 9
语种: 英语
英文关键词: Competition
; Functional diversity
; Inter-tree interactions
; Mixed forest
; Plasticity
; TreeDivNet
Scopus关键词: Architecture
; Competition
; Plasticity
; Regression analysis
; Slow light
; Timber
; Architectural properties
; Competitive environment
; Environmental conditions
; Functional diversity
; Intraspecific competition
; Life history strategy
; Mixed forests
; TreeDivNet
; Forestry
; environmental effect
; experimental study
; functional group
; interspecific competition
; intraspecific competition
; mixed forest
; phenotypic plasticity
; plantation
; shading
; silviculture
; species diversity
; stand structure
; Belgium
; Betula pendula
; Fagus sylvatica
; Pinus sylvestris
; Quercus robur
; Tilia cordata
英文摘要: It is acknowledged that trees behave remarkably plastic in response to environmental conditions. Even so, knowledge of how tree architecture in pure and mixed stands compare is largely underexplored. Such information is relevant from a fundamental ecological and an applied silvicultural perspective, given the increased attention for mixed species silviculture and the close linkages between tree architecture and high-quality timber production. The main objective of this work was to test the effects of competition, diversity and species identity of neighboring trees on the architecture of five important European tree species (Quercus robur, Betula pendula, Fagus sylvatica, Pinus sylvestris and Tilia cordata) in a temperate plantation before and during canopy closure. Data were collected in FORBIO-Zedelgem, a five-year old tree diversity experiment in Belgium. For 396 trees we measured architectural properties including branchiness, tree height-to-diameter (HD) ratio, branch diameter and branch insertion angle, and we investigated how these properties were shaped in different competitive neighborhoods using mixed regression models. Species showed contrasting architectural responses to neighborhood competition, in line with species life-history strategies. In more competitive environments, trees of Q. robur (slow growing and light-demanding) increased HD ratio and branch insertion angle to optimize light foraging in the upper canopy; trees of B. pendula (fast growing and light-demanding) increased HD ratio and decreased branching following the branch autonomy principle; trees of F. sylvatica (slow growing and shade tolerant) increased branching to improve light uptake under shading and finally, trees of P. sylvestris (fast growing and light-demanding) and T. cordata (slow growing and shade tolerant) were not shaped in response to competition. Diversity and identity of species in a trees’ neighborhood did not contribute to the architectural plasticity, although competitive differences between pure and mixed stands underpinned such effects for B. pendula, with lower branching in the highly competitive monocultures. We conclude that competition between trees, but not diversity, influences the architecture of young plantation trees before and during canopy closure in mixtures. To guide tree architectural development towards high-quality timber, management may have to pay considerable attention to competitive processes already in the juvenile forest stages. © 2016 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64546
Appears in Collections: 影响、适应和脆弱性
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作者单位: Division of Forest Nature and Landscape, Department of Earth & Environmental Sciences, KU Leuven, Celestijnenlaan 200 E, Box 2411, Leuven, Belgium; Forest & Nature Lab, Department of Forest and Water Management, Ghent University, Geraardsbergsesteenweg 267, Gontrode, Belgium
Recommended Citation:
Van de Peer T.,Verheyen K.,Kint V.,et al. Plasticity of tree architecture through interspecific and intraspecific competition in a young experimental plantation[J]. Forest Ecology and Management,2017-01-01,385