DOI: 10.1016/j.foreco.2015.06.006
Scopus记录号: 2-s2.0-84945439724
论文题名: Tree and stand-level patterns and predictors of Norway spruce mortality caused by bark beetle infestation in the Tatra Mountains
作者: Sproull G.J. ; Adamus M. ; Bukowski M. ; Krzyzanowski T. ; Szewczyk J. ; Statwick J. ; Szwagrzyk J.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2015
卷: 354 起始页码: 261
结束页码: 271
语种: 英语
英文关键词: Boosted regression trees
; Ips typographus
; Outbreak
; Picea abies
; Stand complexity
; Tree mortality
Scopus关键词: Plants (botany)
; Boosted regression trees
; Ips typographus
; Outbreak
; Picea abies
; Tree mortality
; Forestry
; beetle
; disturbance
; mortality
; population outbreak
; solar radiation
; spatiotemporal analysis
; stand structure
; subalpine environment
; survivorship
; topography
; Carpathians
; Slovakia
; Tatra Mountains
; Tatras National Park
; Ips typographus
; Picea
; Picea abies
; Scolytinae
英文摘要: This study investigates temporal shifts in Norway spruce (Picea abies) mortality, stand structure characteristics, and stand complexity facilitated by a bark beetle (Ips typographus) outbreak that affected an unmanaged subalpine forest region in Tatra National Park, Poland in the late 2000s. Changes in survivorship and stand structure characteristics (diameter (DBH), basal area, height, age, and crown length ratio) of nearly 2500 spatially-referenced trees located in 64 long-term survey plots were compared over four time periods that spanned the duration of the outbreak disturbance event. Stand structure characteristics, topographic factors (slope, elevation, and aspect), and solar equinox radiation were tested as predictors of mortality for multiple stages in the outbreak using boosted regression tree modeling. Our findings showed that: (1) spatial synchrony was not reflective of mortality severity; (2) mortality rates increased significantly as the outbreak progressed; (3) the stand's structure was altered significantly by the outbreak (larger trees were killed most frequently); (4) stand structure characteristics were the best predictors of mortality in all stages of the outbreak, though topographic factors and solar equinox radiation also exhibited moderate to strong predictive power in some stages; and (5) stand complexity decreased significantly as the outbreak progressed. This illustrates the inherently complex nature of bark beetle outbreaks on fine spatial scales and suggests that the extent and severity of spruce mortality during an outbreak event is largely dependent on the relative stage of the outbreak and the structure of the stand. © 2015 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65325
Appears in Collections: 影响、适应和脆弱性
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作者单位: Department of Biological Sciences, University of Denver, Denver, CO, United States; Department of Forest Biodiversity, Institute of Forest Ecology and Silviculture, University of Agriculture, Al. 29 Listopada 46, Krakow, Poland; Tatra National Park, Ul. Kuznice, Zakopane, Poland
Recommended Citation:
Sproull G.J.,Adamus M.,Bukowski M.,et al. Tree and stand-level patterns and predictors of Norway spruce mortality caused by bark beetle infestation in the Tatra Mountains[J]. Forest Ecology and Management,2015-01-01,354