DOI: 10.1016/j.foreco.2016.01.005
Scopus记录号: 2-s2.0-84954317841
论文题名: Predicting the height growth of oak species (Quercus) reproduction over a 23-year period following clearcutting
作者: Travis Swaim J. ; Dey D.C. ; Saunders M.R. ; Weigel D.R. ; Thornton C.D. ; Kabrick J.M. ; Jenkins M.A.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2016
卷: 364 起始页码: 101
结束页码: 112
语种: 英语
英文关键词: Central hardwood region
; Competition
; Even-aged
; Long-term data
; Stand development
Scopus关键词: Competition
; Decision trees
; Harvesting
; Reforestation
; Cation exchange capacities
; Central hardwood regions
; Environmental variables
; Even-aged
; Liriodendron tulipifera
; Long-term data
; Post-harvest treatments
; Stand development
; Forestry
; Acer
; Carya
; Liriodendron tulipifera
; Prunus serotina
; Quercus
英文摘要: We resampled plots from a repeated measures study implemented on the Hoosier National Forest (HNF) in southern Indiana in 1988 to investigate the influence of site and seedling physical attributes on height growth and establishment success of oak species (Quercus spp.) reproduction in stands regenerated by the clearcut method. Before harvest, an array of physical attributes were documented for individual stems of advance reproduction. Across all surveys, the same characteristics were remeasured in years 6, 12, and 23 for all reproduction types (advance reproduction, stump sprouts, and new seedlings). In order to characterize topo-edaphic conditions, soil samples were collected and analyzed in 2011, and slope aspect, slope percent, and slope position were measured in the field. Random Forest (RF) analysis was used to determine the best physical and environmental predictors of height growth for oak species and their competitors in developing stands. Overall, advance reproduction of oak species fared poorly following harvests. Sprout-origin oak stems proved stronger competitors in developing stands, although their abundance relative to competing species was quite low. Advance and sprout origin maple (Acer spp.) stems, along with new seedlings of black cherry (Prunus serotina Ehrh.) and yellow-poplar (Liriodendron tulipifera L.), quickly overtopped oak advance reproduction and established dominance in the developing canopy. The height of stems during prior sampling periods was the best overall predictor of stem height in subsequent sampling periods. Species was also an important predictor of stem height. Comparatively, environmental variables were poor predictors of height growth of individual stems throughout the study, although more mesic aspects, greater cation exchange capacity, and greater soil magnesium saturation were associated with greater height of non-sprout origin stems from species groups other than oak or hickory in year 6. Our results suggest that overstory removal has driven stand demographics towards species favored by infrequent large-scale disturbance events such as clearcutting. Without post-harvest treatments to control competitors, oak regeneration on more mesic sites is unlikely to recruit into developing stands. © 2016 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65052
Appears in Collections: 影响、适应和脆弱性
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作者单位: Department of Forestry and Natural Resources and Hardwood Tree Improvement and Regeneration Center, Purdue University, 715 West State Street, West Lafayette, IN, United States; USDA Forest Service, Northern Research Station, 202 ABNR Building, Columbia, MO, United States; Hoosier National Forest, 811 Constitution Avenue, Bedford, IN, United States; Malheur National Forest, 265 Highway 20 South, Hines, OR, United States
Recommended Citation:
Travis Swaim J.,Dey D.C.,Saunders M.R.,et al. Predicting the height growth of oak species (Quercus) reproduction over a 23-year period following clearcutting[J]. Forest Ecology and Management,2016-01-01,364