DOI: 10.1016/j.foreco.2013.04.009
Scopus记录号: 2-s2.0-84877805436
论文题名: A meta-analysis of the effect of forest management for timber on understory plant species diversity in temperate forests
作者: Duguid M.C. ; Ashton M.S.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2013
卷: 303 起始页码: 81
结束页码: 90
语种: 英语
英文关键词: Clearcut
; Harvesting
; Herbs
; Logging
; Selection systems
; Silviculture
Scopus关键词: Clearcut
; Herbs
; Plant species diversity
; Regeneration treatment
; Selection systems
; Silvicultural treatments
; Silviculture
; Temporal and spatial scale
; Harvesting
; Logging (forestry)
; Timber
; Reforestation
; clearcutting
; forest management
; herb
; logging (timber)
; meta-analysis
; regeneration
; silviculture
; species diversity
; temperate forest
; timber
; understory
; Forests
; Harvesting
; Herbs
; Logging
; Reforestation
; North America
英文摘要: Many studies have examined affects of forest management-particularly regeneration treatments-for timber on understory plant diversity. These studies taken independently show no clear trends in diversity with degree and/or periodicity of disturbance from timber harvests. Here we present a meta-analysis synthesizing primary field research on response of understory plant diversity to timber harvesting in temperate forests, particularly in North America. Across a pool of 96 studies, we find no effect on understory plant species richness from managing forests for timber. When intensive regeneration harvests (e.g. clearcut, shelterwood) are separated from less intensive regeneration harvests (e.g. single tree and group selection systems) and thinnings, selection harvests show a positive effect on species richness. Intensive regeneration harvests and thinning treatments had no effect on species richness. We examined the role of stand development following regeneration treatments, and found no detectable effects on species richness for even-aged stands within the first 50. years after clearcut and shelterwood timber harvests. Stands in later successional stages, however, had lower species richness than un-logged stands. All these findings together suggest that silvicultural activities focused toward timber management are not inconsistent with conservation of understory plant diversity. We suggest site-specific characteristics (e.g. resource availability, resource heterogeneity) at various temporal and spatial scales, have a larger role to play in defining understory plant diversity than the disturbance of harvesting itself. Managers therefore should consider underlying factors of site and species composition, and should examine regionally specific studies when planning silvicultural treatments. In addition, it should be noted that our analysis makes no distinction in classifying the nature of diversity, especially between colonizing early-successional species that peak after 1-10. years and then disappear, and late successional, often more site specific and shade tolerant species, that may persist post harvest but often disappear or retract in their range and abundance. Further studies are needed to tease out differences in diversity in relation to successional stage and affects of forest management. © 2013 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/66530
Appears in Collections: 影响、适应和脆弱性
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作者单位: Yale School of Forestry and Environmental Studies, 360 Prospect St., New Haven, CT 06511, United States
Recommended Citation:
Duguid M.C.,Ashton M.S.. A meta-analysis of the effect of forest management for timber on understory plant species diversity in temperate forests[J]. Forest Ecology and Management,2013-01-01,303