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Type: Journal Article
Author(s): Owen F. Price; Christopher E. Gordon
Publication Date: October 2016

Fuel load is a primary determinant of fire spread in Australian forests. In east Australian forests, litter and canopy fuel loads and hence fire hazard are thought to be highest at and beyond steady-state fuel loads 15-20 years post-fire. Current methods used to predict fuel loads often rely on course-scale vegetation maps and simple time-since-fire relationships which mask fine-scale processes influencing fuel loads. Here we use Light Detecting and Remote Sensing technology (LiDAR) and field surveys to quantify post fire mid-story and crown canopy fuel accumulation and fire hazard in Dry Sclerophyll Forests of the Sydney Basin (Australia) at fine spatial-scales (20 x 20 m cell resolution). Fuel cover was quantified in three strata important for crown fire propagation (0.5-4 m, 4-15 m, >15 m) over a 144 km2 area subject to varying fire fuel ages. Our results show that 1) LiDAR provided a precise measurement of fuel cover in each strata and a less precise but still useful predictor of surface fuels, 2) cover varied greatly within a mapped vegetation class of the same fuel age, particularly for elevated fuel, 3) time-since-fire was a poor predictor of fuel cover and crown fire hazard because fuel loads important for crown fire propagation were variable over a range of fire fuel ages between 2 and 38 years post-fire, and 4) fuel loads and fire hazard can be high in the years immediately following fire. Our results show the benefits of spatially and temporally specific in situ fuel sampling methods such as LiDAR, and are widely applicable for fire management actions which aim to decrease human and environmental losses due to wildfire. © 2016 Elsevier Ltd. All rights reserved.

Online Links
Citation: Price, O. F., and C. E. Gordon. 2016. The potential for LiDAR technology to map fire fuel hazard over large areas of Australian forest. Journal of Environmental Management, v. 181, p. 663-673. 10.1016/j.jenvman.2016.08.042.

Cataloging Information

Topics:
Regions:
Keywords:
  • Australia
  • Australia
  • crown fire
  • crown fires
  • eucalypt forest
  • fire management
  • fuel accumulation
  • fuel accumulation
  • fuel loading
  • fuel management
  • Fuel Profile
  • New South Wales
  • remote sensing
  • sclerophyll forests
Tall Timbers Record Number: 33101Location Status: Not in fileCall Number: AvailableAbstract Status: Fair use, Okay
Record Last Modified:
Record Maintained By: FRAMES Staff (https://www.frames.gov/contact)
FRAMES Record Number: 55165

This bibliographic record was either created or modified by Tall Timbers and is provided without charge to promote research and education in Fire Ecology. The E.V. Komarek Fire Ecology Database is the intellectual property of Tall Timbers.