DOI: 10.1016/j.foreco.2015.10.015
Scopus记录号: 2-s2.0-84945205640
论文题名: Tree mortality based fire severity classification for forest inventories: A Pacific Northwest national forests example
作者: Whittier T.R. ; Gray A.N.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2016
卷: 359 起始页码: 199
结束页码: 209
语种: 英语
英文关键词: Fire effects
; Forest Inventory and Analysis (FIA)
; Forest monitoring
; Probabilistic sampling
; Tree remeasurement
; Wildfire
Scopus关键词: Bond (masonry)
; Classification (of information)
; Deforestation
; Equivalence classes
; Fire hazards
; Fires
; Image classification
; Fire effect
; Forest inventory and analysis
; Forest monitoring
; Probabilistic sampling
; Tree remeasurement
; Wildfire
; Forestry
; biomonitoring
; forest fire
; forest inventory
; forest management
; measurement method
; mortality risk
; probability
; remote sensing
; satellite imagery
; understory
; wildfire
; Oregon
; Pacific Northwest
; United States
; Washington [United States]
英文摘要: Determining how the frequency, severity, and extent of forest fires are changing in response to changes in management and climate is a key concern in many regions where fire is an important natural disturbance. In the USA the only national-scale fire severity classification uses satellite image change-detection to produce maps for large (>400. ha) fires, and is generated by the Monitoring Trends in Burn Severity (MTBS) program. It is not clear how much forested area burns in smaller fires or whether ground-based fire severity estimates from a statistical sample of all forest lands might provide additional, useful information. We developed a tree mortality based fire severity classification using remeasured tree data from 10,008 plots in a probabilistic survey of National Forests System (NFS) lands in Oregon and Washington, using 8 tree mortality and abundance metrics. We estimate that 12.5% (±0.7% SE) of NFS forest lands in the region experienced a fire event during 1993-2007, with an annual rate of 0.96% (±0.05%). An estimated 6.5% of forest lands burned at High Severity or Moderate Severity; 2.1% burned at Very Low severity or only experienced surface or understory fire. A total of 358 of the 507 burned plots were within the MTBS perimeters, with ~45% having equivalent severity classifications; but for ~51% of the plots the MTBS classifications suggested lower severity than the tree-mortality based classes. Based on events recorded on plots and the inventory design, we estimate that 20.9% of the forested NFS lands experiencing fires, either wildfires or prescribed burns, were not in the MTBS maps. Tree mortality based fire severity classifications, combined with remotely-sensed and management information on timing and treatments, could be readily applied to nationally-consistent Forest Inventory and Analysis (FIA) data to provide improved monitoring of fire effects anywhere in the USA sampled by remeasured FIA inventories. © 2015 . Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65224
Appears in Collections: 影响、适应和脆弱性
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作者单位: Department of Forest Ecosystems and Society, Oregon State University, Corvallis, OR, United States; USDA Forest Service, Pacific Northwest Research Station, 3200 SW Jefferson Way, Corvallis, OR, United States
Recommended Citation:
Whittier T.R.,Gray A.N.. Tree mortality based fire severity classification for forest inventories: A Pacific Northwest national forests example[J]. Forest Ecology and Management,2016-01-01,359