DOI: 10.1016/j.foreco.2014.04.027
Scopus记录号: 2-s2.0-84905008292
论文题名: Canopy space filling and tree crown morphology in mixed-species stands compared with monocultures
作者: Pretzsch H.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2014
卷: 327 起始页码: 251
结束页码: 264
语种: 英语
英文关键词: Interspecific competition
; Intraspecific competition
; Light interception
; Overyielding
; Species selection effect
; True mixing effect
Scopus关键词: Filling
; Mixing
; Morphology
; Inter-specific competitions
; Intraspecific competition
; Light interception
; Mixing effects
; Overyielding
; Species selection
; Forestry
; canopy gap
; forest management
; growth rate
; interception
; interspecific competition
; intraspecific competition
; mixed forest
; mixing
; monoculture
; morphology
; stand dynamics
; canopy architecture
; environmental conditions
; forest canopy
; resilience
; stand structure
; Anatomy
; Competition
; Ecology
; Filling
; Forest Canopy
; Mixing
英文摘要: Mixed-species forest stands are well explored in their favourable ecological, economical, and socio-economical functions and services compared with pure stands, but still poorly understood in their structure and functioning. Canopy structure and tree morphology affect the environmental conditions within the stand, the tree growth, and by this most forest functions and services. Here, I review how canopy structure and crown morphology in mixed stands can differ from pure stands and how this depends on the selection of tree species and interactions between them. The focus is on the macrostructure of canopy and crowns derived from the trees' positions, their convex crown hulls, and their space filling with branches.In mixed canopies the sum of the crown projection area, but not the ground coverage by crowns, mostly exceeds pure stands due to multiple crown overlaps. The interspecific differences in crown shape and allometric scaling cause a 'selection effect' when complementary species are combined. In interspecific environment furthermore 'true mixing effects' like intraspecific shifts in size, shape, and inner space filling of crowns may occur. The much denser and more plastic canopy space filling in mixed stands may increase light interception, stand density, productivity, and growth resilience to disturbances. I discuss the relevance of interspecific interactions for forest management, model building, and theory development and draw perspectives of further research into stand canopy and crown structure. © 2014 The Author. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65902
Appears in Collections: 影响、适应和脆弱性
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作者单位: Forest Growth and Yield Science, Center of Life and Food Sciences Weihenstephan, Technische Universität München, Hans-Carl-von-Carlowitz-Platz 2, 85354 Freising, Germany
Recommended Citation:
Pretzsch H.. Canopy space filling and tree crown morphology in mixed-species stands compared with monocultures[J]. Forest Ecology and Management,2014-01-01,327