DOI: 10.1016/j.foreco.2017.01.021
Scopus记录号: 2-s2.0-85010650927
论文题名: Coexistence, association and competitive ability of Quercus petraea and Quercus robur seedlings in naturally regenerated mixed stands
作者: Collet C. ; Manso R. ; Barbeito I.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2017
卷: 390 起始页码: 36
结束页码: 46
语种: 英语
英文关键词: Competition
; Growth model
; Natural regeneration
; Pair correlation function
; Spatial pattern
; Species coexistence
Scopus关键词: Competition
; Forestry
; Mixtures
; Reforestation
; Spatial distribution
; Spatial variables measurement
; Growth modeling
; Natural regeneration
; Pair correlation functions
; Spatial patterns
; Species coexistence
; Population distribution
; coexistence
; competitive ability
; deciduous tree
; growth modeling
; interspecific competition
; mixed forest
; regeneration
; seedling
; spatial distribution
; survival
; France
; Quercus petraea
; Quercus robur
英文摘要: In most mixed-species forestry systems, regeneration is a critical step for individual tree survival and species coexistence. Species coexistence is driven by the fine-scale spatial patterns and competitive abilities of species. In naturally regenerated mixed oak (Quercus petraea and Quercus robur: QP and QR, respectively) stands, species coexistence was assessed by analysing the spatial distribution of both species and their growth responses to intra- and interspecific competition. Four sites located in North Eastern France with an established (1.4–2.8-m-high) mixed QP and QR regeneration were selected for the study. In a first step, individual seedling location was recorded along line transects to analyse the spatial distribution of the two species. Univariate pair correlation functions were used to test for spatial aggregation for each species and bivariate pair correlation functions were used to test for spatial associations between the two species. In a second step, seedlings were measured in small plots to analyse their response to local competition. Mixed linear models were used to estimate the combined effects of density, mixture, seedling size and seedling status on seedling growth. QP and QR were both highly aggregated in monospecific patches, and the two species were strongly segregated at a decametric scale. Transition zones between monospecific patches were reduced to a few meters. For both species, mixture had no effect on seedling growth. In all sites, the two species showed very similar diameter and height growth rates in response to density, mixture, seedling size and seedling status, and similar intra- and interspecific competitive abilities. Highly patchy patterns of QP and QR regeneration strongly reduce interactions between the two species and, in transition zones between monospecific patches where the two species are mixed, no species is expected to outcompete its companion species. For each species, long-term persistence at the stand scale is determined by intraspecific competition rather than by interspecific competition. At this developmental stage, the QP-QR mixture appears to be very stable and no specific silvicultural treatment is required to maintain the mixture. © 2017 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64454
Appears in Collections: 影响、适应和脆弱性
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作者单位: LERFoB, AgroParisTech, INRA, Nancy, France
Recommended Citation:
Collet C.,Manso R.,Barbeito I.. Coexistence, association and competitive ability of Quercus petraea and Quercus robur seedlings in naturally regenerated mixed stands[J]. Forest Ecology and Management,2017-01-01,390