DOI: 10.1016/j.foreco.2017.02.015
Scopus记录号: 2-s2.0-85013188398
论文题名: Landscape-scale quantification of fire-induced change in canopy cover following mountain pine beetle outbreak and timber harvest
作者: McCarley T.R. ; Kolden C.A. ; Vaillant N.M. ; Hudak A.T. ; Smith A.M.S. ; Kreitler J.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2017
卷: 391 起始页码: 164
结束页码: 175
语种: 英语
英文关键词: Burn severity
; Eastern Cascades
; Fire effects
; LiDAR
; Wildfire
Scopus关键词: Carbon
; Forestry
; Harvesting
; Optical radar
; Timber
; Burn Severity
; Dendroctonus ponderosae
; Fire effect
; Land managements
; Light detection and ranging
; Mountain pine beetle
; Western United States
; Wildfire
; Fires
; bark
; beetle
; carbon balance
; fire history
; land management
; lidar
; mortality
; mountain environment
; timber harvesting
; wildfire
; Oregon
; United States
; Coleoptera
; Dendroctonus ponderosae
; Pinus mugo
; Scolytinae
英文摘要: Across the western United States, the three primary drivers of tree mortality and carbon balance are bark beetles, timber harvest, and wildfire. While these agents of forest change frequently overlap, uncertainty remains regarding their interactions and influence on specific subsequent fire effects such as change in canopy cover. Acquisition of pre- and post-fire Light Detection and Ranging (LiDAR) data on the 2012 Pole Creek Fire in central Oregon provided an opportunity to isolate and quantify fire effects coincident with specific agents of change. This study characterizes the influence of pre-fire mountain pine beetle (MPB; Dendroctonus ponderosae) and timber harvest disturbances on LiDAR-estimated change in canopy cover. Observed canopy loss from fire was greater (higher severity) in areas experiencing pre-fire MPB (Δ 18.8%CC) than fire-only (Δ 11.1%CC). Additionally, increasing MPB intensity was directly related to greater canopy loss. Canopy loss was lower for all areas of pre-fire timber harvest (Δ 3.9%CC) than for fire-only, but among harvested areas, the greatest change was observed in the oldest treatments and the most intensive treatments [i.e., stand clearcut (Δ 5.0%CC) and combination of shelterwood establishment cuts and shelterwood removal cuts (Δ 7.7%CC)]. These results highlight the importance of accounting for and understanding the impact of pre-fire agents of change such as MPB and timber harvest on subsequent fire effects in land management planning. This work also demonstrates the utility of multi-temporal LiDAR as a tool for quantifying these landscape-scale interactions. © 2017 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64422
Appears in Collections: 影响、适应和脆弱性
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作者单位: University of Idaho, Department of Geography, Moscow, ID, United States; University of Idaho, Department of Forest, Rangeland, and Fire Sciences, Moscow, ID, United States; USDA Forest Service, Pacific Northwest Research Station, Western Wildland Environmental Threat Assessment Center, Prineville, OR, United States; USDA Forest Service, Rocky Mountain Research Station, Moscow, ID, United States; USGS, Western Geographic Science Center, Boise, ID, United States
Recommended Citation:
McCarley T.R.,Kolden C.A.,Vaillant N.M.,et al. Landscape-scale quantification of fire-induced change in canopy cover following mountain pine beetle outbreak and timber harvest[J]. Forest Ecology and Management,2017-01-01,391