DOI: 10.1016/j.foreco.2014.04.001
Scopus记录号: 2-s2.0-84902107297
论文题名: Gap size and position influence variable response of Fagus sylvatica L. and Abies alba Mill.
作者: Čater M. ; Diaci J. ; Roženbergar D.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2014
卷: 325 起始页码: 128
结束页码: 135
语种: 英语
英文关键词: Abies alba
; Dinaric silver fir and beech forests
; Fagus sylvatica
; Light conditions
; Quantum yield
; Silviculture
Scopus关键词: Competition
; Quantum yield
; Silver
; Abies alba
; Beech forest
; Fagus sylvatica
; Light conditions
; Silviculture
; Forestry
; canopy gap
; deciduous forest
; gap dynamics
; mixed forest
; montane forest
; silviculture
; yield response
; Abies Alba
; Fagus Sylvatica
; Forestry
; Light
; Silviculture
; Central Europe
英文摘要: Montane forests of silver fir (Abies alba Mill.) and European beech (Fagus sylvatica L.) in the Dinaric region are the largest continuous forest area in Central Europe, where silver fir's regression is one of the region's major concerns. Designing appropriate sized canopy gap spatio-temporal dynamics is the main silvicultural tool for indirect promotion of silver fir. Within gap microsites, categories based on shares of direct and diffuse radiation proved to be an interesting conceptual model for explaining microsite variation and seedling success induced by light and general climate variability. In order to evaluate the response of beech and fir in different gap microsites, different light regimes were evaluated based on the proportion between direct and diffuse radiation in three different sizes of forest gap in managed forests. The photosynthesis response to different light conditions (max. photosynthetic rate - Amax and quantum yield - Φ) in beech and silver fir was compared on all microsites during three consecutive g periods (2009, 2010, and 2011) under controlled environmental conditions. A different response between species in microsite light categories was shown between different gap sizes. In all microsite categories of both species, quantum yield appeared at lower light intensities with increasing gap size, with the exception of beech with a predominant direct light component, in which yield significantly increased. In order to favour fir, gaps with low direct light levels should be created, while existing gaps should be extended towards the southern gap edge. Our conclusions emphasize the importance of gaps, relatively smaller in size (0.03-0.11. ha) but significant in contributing to increasing the competitive advantage of fir in mountainous, mixed-species Dinaric forests. © 2014 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65922
Appears in Collections: 影响、适应和脆弱性
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作者单位: Slovenian Forestry Institute, Večna pot 2, 1000 Ljubljana, Slovenia; Biotechnical Faculty, Department of Forestry and Renewable Forest Resources, Večna pot 83, 1000 Ljubljana, Slovenia
Recommended Citation:
Čater M.,Diaci J.,Roženbergar D.. Gap size and position influence variable response of Fagus sylvatica L. and Abies alba Mill.[J]. Forest Ecology and Management,2014-01-01,325