DOI: 10.1016/j.foreco.2015.07.015
Scopus记录号: 2-s2.0-85010878239
论文题名: Structural patterns of beech and silver fir suggest stability and resilience of the virgin forest Sinca in the Southern Carpathians, Romania
作者: Petritan I.C. ; Commarmot B. ; Hobi M.L. ; Petritan A.M. ; Bigler C. ; Abrudan I.V. ; Rigling A.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2015
卷: 356 起始页码: 184
结束页码: 195
语种: 英语
英文关键词: Abies alba
; Fagus sylvatica
; Primeval forest
; Small-scale disturbances
; Species coexistence
; Tree spatial pattern
Scopus关键词: Reforestation
; Silver
; Stochastic systems
; Abies alba
; Fagus sylvatica
; Primeval forests
; Small-scale disturbances
; Spatial patterns
; Species coexistence
; Forestry
; coexistence
; coniferous tree
; deciduous forest
; ecosystem resilience
; forest management
; intraspecific competition
; mortality
; regeneration
; spatial distribution
; temporal variation
; Carpathians
; Abies
; Abies alba
; Fagus
; Fagus sylvatica
英文摘要: The structural patterns and dynamics of a primeval silver fir (Abies alba) – European beech (Fagus sylvatica) forest in the Southern Carpathians (Romania) were assessed to gain deeper insight into species interactions and mechanisms of coexistence, and to study the influence of species composition on forest structure. At 21 sample plots, each covering 0.123 ha within an area of 240 ha, all living and dead trees ⩾6 cm dbh (diameter at breast height) were mapped and measured. Regeneration was assessed on four sub-plots per plot. Additionally, a 1-ha permanent plot established in 2003 was re-measured in 2013 to obtain information on stand dynamics. Point pattern analyses were conducted to study the spatial patterns and tree-to-tree interactions. The overall dbh distributions of beech and fir tended to indicate sustainable population structures. The share of beech varying from 24.8% to 95% (average 58%) in stand basal area did not influence stand parameters such as basal area or volume, nor the distribution of growing stock to different canopy layers. We found fir to dominate the lowest dbh classes in plots that were strongly dominated by beech in the top layer and vice versa, locally indicating species alternation. The regeneration density of fir was lower than of beech, although browsing by ungulates was negligible. In contrast to its share among living trees, fir contributed two-thirds to the deadwood volume. The 10-year changes in forest structure and mortality rate on the 1-ha plot were very small, suggesting the absence of recent intermediate or severe disturbances. The spatial patterns of the dead trees and of the living beech and fir in different canopy layers agreed with a disturbance regime dominated by stochastic small-scale events. Although the spatial patterns of beech and fir were similar, the tree-to-tree interactions indicated a higher intraspecific competition of beech than of fir and a higher shade tolerance of fir particularly in later stages of development. Both could be important factors for the coexistence of the two species. We conclude that the primeval fir–beech forest Sinca shows under the present small scale disturbance regime a high stability and structural resilience. Temporal changes in species composition only lead to small fluctuations in stand parameters and do not threaten the long-term coexistence of beech and fir. Forest managers may vary the species composition of fir–beech forests without substantially influencing the overall forest structure or productivity. © 2015 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65305
Appears in Collections: 影响、适应和脆弱性
There are no files associated with this item.
作者单位: Swiss Federal Institute for Forest, Snow and Landscape Research (WSL), Zürcherstrasse 111, CH-8903 Birmensdorf, Switzerland; Transilvania University, Sirul Beethoven 1, Brasov, Romania; National Institue for Research-Development in Forestry “Marin Drăcea”, Eroilor 128, Voluntari, Romania; Forest Ecology, Department of Environmental Systems Science, ETH Zurich, Universitätstrasse 16, Zürich, Switzerland
Recommended Citation:
Petritan I.C.,Commarmot B.,Hobi M.L.,et al. Structural patterns of beech and silver fir suggest stability and resilience of the virgin forest Sinca in the Southern Carpathians, Romania[J]. Forest Ecology and Management,2015-01-01,356