DOI: 10.1016/j.foreco.2014.07.003
Scopus记录号: 2-s2.0-84907304254
论文题名: Effects of intermediate-scale wind disturbance on composition, structure, and succession in quercus stands: Implications for natural disturbance-based silviculture
作者: Cowden M.M. ; Hart J.L. ; Schweitzer C.J. ; Dey D.C.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2014
卷: 330 起始页码: 240
结束页码: 251
语种: 英语
英文关键词: Light regime
; Quercus (oak)
; Species diversity
; Succession
; Wind disturbance
Scopus关键词: Biodiversity
; Ecology
; Biophysical environments
; Environmental conditions
; Light regime
; Quantitative information
; Quercus
; Statistically significant difference
; Succession
; Wind disturbance
; Forestry
; catastrophic event
; community composition
; deciduous forest
; forest management
; light effect
; silviculture
; spatiotemporal analysis
; species diversity
; stand dynamics
; succession
; Biodiversity
; Ecology
; Forestry
; Quercus
英文摘要: Forest disturbances are discrete events in space and time that disrupt the biophysical environment and impart lasting legacies on forest composition and structure. Disturbances are often classified along a gradient of spatial extent and magnitude that ranges from catastrophic events where most of the overstory is removed to gap-scale events that modify local environmental conditions only. Without question, a paucity of data is available on disturbance events of the intermediate scale (i.e. those events too localized to be classed as catastrophic and too widespread to be considered gap scale). The specific objectives of this study were to quantify and compare canopy structure, understory light regimes, woody species composition, and tree species diversity along a gradient of canopy disturbance caused by an EF1 tornado and to analyze the influence of intermediate-scale disturbance on the successional trajectory of an upland Quercus forest. Statistically significant differences in diversity measures between control (no storm damage), light, or moderate damage class plots were only found in the sapling layer. We documented significant differences (P<. 0.01) in percent of intercepted PAR between the control and moderate damage classes and between moderate and light classes. Three growing seasons post-disturbance, the understory light regime had largely returned to pre-disturbance conditions. The disturbance event acted primarily as a release mechanism for advanced reproduction in the understory and for stems in the midstory. Our results provide quantitative information on disturbances of this extent and magnitude and can be used to guide silvicultural systems designed to emulate natural disturbance processes, which is an increasingly popular management approach especially on public lands. © 2014 . Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65772
Appears in Collections: 影响、适应和脆弱性
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作者单位: Department of Geography, University of Alabama, Tuscaloosa, AL 35487, United States; Southern Research Station, USDA Forest Service, Huntsville, AL 35801, United States; Northern Research Station, USDA Forest Service, Columbia, MO 65211, United States
Recommended Citation:
Cowden M.M.,Hart J.L.,Schweitzer C.J.,et al. Effects of intermediate-scale wind disturbance on composition, structure, and succession in quercus stands: Implications for natural disturbance-based silviculture[J]. Forest Ecology and Management,2014-01-01,330