The International Crown Fire Modeling Experiment fuel treatment trials [abstract]
Document Type: Conference Paper
Author(s): Martin E. Alexander; Rick A. Lanoville
Editor(s): R. Todd Engstrom; Krista E. M. Galley; William J. de Groot
Publication Year: 2004

Cataloging Information

  • boreal forests
  • Canada
  • catastrophic fires
  • crown fires
  • dead fuels
  • experimental fires
  • field experimental fires
  • fire control
  • fire danger rating
  • fire management
  • fire protection
  • fuel breaks
  • fuel management
  • fuel models
  • fuel moisture
  • fuel types
  • ignition
  • moisture
  • Northwest Territories
  • photography
  • Picea mariana
  • Pinus banksiana
  • Populus
  • Populus tremuloides
  • rural communities
  • site treatments
  • thinning
  • wildfires
  • wind
  • woody fuels
Record Maintained By:
Record Last Modified: March 16, 2021
FRAMES Record Number: 42472
Tall Timbers Record Number: 17549
TTRS Location Status: In-file
TTRS Call Number: Tall Timbers shelf
TTRS Abstract Status: Fair use, Okay, Reproduced by permission

This bibliographic record was either created or modified by the Tall Timbers Research Station and Land Conservancy 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 the Tall Timbers Research Station and Land Conservancy.


Several fuel treatment demonstration trials or case studies were carried out as part of the International Crown Fire Modelling Experiment (ICFME), Northwest Territories: 1) demonstrating the value of fully leafed-out trembling aspen (Populus tremuloides) stands as fuelbreaks during the summer (one plot dominated by aspen with the ignition face consisting of jack pine [Pinus banksiana]-black spruce [Picea mariana]); 2) evaluating the National Fire Protection Association (NFPA) 299 Standard for rural home protection from wildfires in forested areas involving 10 m of defensible space and then a further 20 m of fuel treatment (two plots); and 3) examining the relative effectiveness of low pruning-light thinning-dead and/or down woody fuel removal in modifying fire behavior (a paired plot of nearly equal proportions). These three situations were examined during the burning of the Aspen Plot on 17 June 1999, Plot I1 on 18 June 1999, and the Treated-Untreated Plot on 14 June 2000, respectively. In the case of Plot I1, unfortunately a shift in wind direction soon after ignition resulted in the crown fire flame front flanking by the simulated house-clearing-fuel-treated area as opposed to taking a direct 'hit.' Attempts to burn the second plot (I2) to evaluate the NFPA 299 Standard in 2000 and 2001 were foiled by weather conditions. Consequently, the NFPA 299 Standard has yet to be fully evaluated. All three experimental fires were carried out under extreme fire danger conditions according to the classification system used in the Northwest Territories; in actual fact, the Fire Weather Index component of the Canadian Forest Fire Weather Index System exceeded a value of 30 in all three instances. As a result of the efforts undertaken during ICFME the following can be concluded: 1) an aspen stand after full green-up can serve as a very effective barrier to high-intensity crown fires under certain circumstances; 2) the NFPA 299 Standard was found adequate for a flanking crown fire; and 3) the positive effects of fuel removal-manipulation on potential fire behavior may be offset by the negative effects of decreased fuel moistures and increased in-stand winds, thus enunciating the need for treating the organic layer in order to modify fire behavior. Photographs of all three experimental crown fires associated with the ICFME fuel treatment trials carried out to date can be found on the ICFME website ( icfme/icfme_e.htm). © 2004, Tall Timbers Research, Inc.

Online Link(s):
Alexander, M. E., and R. A. Lanoville. 2004. The International Crown Fire Modeling Experiment fuel treatment trials [abstract], in Engstrom, R. T., Galley, K. E. M., and de Groot, W. J., Proceedings 22nd Tall Timbers Fire Ecology Conference: Fire in temperate, boreal, and montane ecosystems. Kananaskis Village, Alberta, Canada. Tall Timbers Research, Inc.,Edmonton, Alberta, Canada [Imperial Printing Ltd.]. p. 222,