DOI: 10.1016/j.foreco.2017.03.026
Scopus记录号: 2-s2.0-85018253502
论文题名: Evaluating the influence of varying levels of spruce budworm defoliation on annualized individual tree growth and mortality in Maine, USA and New Brunswick, Canada
作者: Chen C. ; Weiskittel A. ; Bataineh M. ; MacLean D.A.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2017
卷: 396 起始页码: 184
结束页码: 194
语种: 英语
英文关键词: Acadian region
; Balsam fir
; Black spruce
; Disturbance
; Red spruce
; Tree growth
; White spruce
Scopus关键词: Trees (mathematics)
; Acadian region
; Balsam fir
; Black spruce
; Disturbance
; Red spruce
; Tree growth
; White spruce
; Forestry
; Abies
; Abies balsamea
; Choristoneura fumiferana
; Picea
; Picea abies
; Picea glauca
; Picea mariana
; Picea rubens
英文摘要: Spruce budworm (SBW; Choristoneura fumiferana (Clem.)) defoliation can cause severe growth reduction and mortality to spruce-fir (Picea-Abies) species in eastern North America. Consequently, it is important to understand and predict how individual trees respond to defoliation in terms of growth and mortality. To address this, species- and region-specific individual-tree models quantifying the effects of cumulative defoliation on annualized diameter and height increment, crown recession, and mortality were developed using data from an extensive network of 424 and 136 permanent sample plots in Maine, USA and New Brunswick, Canada, respectively, during the last SBW outbreak of 1970–1990s. In general, these models fit well with relatively small bias despite large variation observed in the data. The effects of SBW defoliation on diameter increment, crown recession, and mortality were highly significant but relatively moderate depending on species, possibly because overall mean defoliation was rather moderate. Reduction in diameter increment and increase in mortality were always more significant for balsam fir (Abies balsamea L.) than for the spruce species. However, diameter increment returned to higher rates irrespective of species in New Brunswick, where the data were collected towards the end of the SBW outbreak. Overall, the results highlight the variability of tree response to SBW defoliation and the array of factors that may influence it. © 2017 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64340
Appears in Collections: 影响、适应和脆弱性
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作者单位: University of Maine, School of Forest Resources, Orono, ME, United States; University of Arkansas at Monticello, School of Forestry & Natural Resources, Monticello, AR, United States; University of New Brunswick, Faculty of Forestry and Environmental Management, P.O. Box 4400, Fredericton, NB, Canada
Recommended Citation:
Chen C.,Weiskittel A.,Bataineh M.,et al. Evaluating the influence of varying levels of spruce budworm defoliation on annualized individual tree growth and mortality in Maine, USA and New Brunswick, Canada[J]. Forest Ecology and Management,2017-01-01,396