DOI: 10.1016/j.foreco.2015.07.004
Scopus记录号: 2-s2.0-84945478003
论文题名: Exclosures can favour natural regeneration of oak after conservation-oriented thinning in mixed forests in Sweden: A 10-year study
作者: Leonardsson J. ; Löf M. ; Götmark F.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2015
卷: 354 起始页码: 1
结束页码: 9
语种: 英语
英文关键词: Browsing
; Canopy disturbance
; Forest restoration
; Quercus spp
; Succession
; Ungulates
Scopus关键词: Biodiversity
; Conservation
; Reforestation
; Vegetation
; Browsing
; Canopy disturbance
; Forest restoration
; Quercus spp
; Succession
; Ungulates
; Forestry
; deciduous tree
; endangered species
; extinction risk
; forest canopy
; forest management
; mixed forest
; reforestation
; regeneration
; restoration ecology
; shrub
; succession
; thinning
; ungulate
; Sweden
; Quercus
; Ungulata
英文摘要: Oak trees are biodiversity hotspots in many landscapes and provide habitats for several organism groups, including species that are rare or threatened by extinction. Oak regeneration in the northern hemisphere is often poor, which is a serious problem in many oak-rich conservation forests. Competition from other vegetation and browsing by ungulates are two factors that limit oak regeneration. In 13 mixed oak-rich forests with high values for biodiversity we tested conservation-oriented thinning. Trees and shrubs were harvested for biofuel, but the main aim was to favour oak regeneration and biodiversity. On average, 23% of the initial basal area was removed during the winter 2002/2003. After thinning, we set up exclosures to protect oak seedlings from browsing. In 2012, after ten growing seasons, the exclosures had favoured regeneration of oak by reducing ungulate browsing, though the effect was weak. Tall oak saplings (<130. cm) were present in exclosures at five sites, and no such new stems were recorded in control plots with browsing. These five sites were characterized by higher canopy openness, and probably higher light availability, compared to the other sites. Other broadleaves, and especially shrubs, increased much more in density and height than oaks, in both exclosures and control plots. Thus, conservation-oriented thinning in combination with fences to protect oak seedlings from browsing ungulates, increased oak regeneration in the mixed conservation forests, but control of competing understory vegetation in exclosures is probably also needed. © 2015. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65330
Appears in Collections: 影响、适应和脆弱性
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作者单位: University of Gothenburg, Department of Biological and Environmental Sciences, Box 463, Göteborg, Sweden; Swedish University of Agricultural Sciences, Southern Swedish Forest Research Centre, Box 49, Rörsjöv 1, Alnarp, Sweden
Recommended Citation:
Leonardsson J.,Löf M.,Götmark F.. Exclosures can favour natural regeneration of oak after conservation-oriented thinning in mixed forests in Sweden: A 10-year study[J]. Forest Ecology and Management,2015-01-01,354