Comparison of observed and predicted fire behavior in the sagebrush/bunchgrass vegetation type
Document Type: Conference Paper
Author(s): Charles L. Bushey
Publication Year: 1985

Cataloging Information

  • aerial ignition
  • Artemisia
  • dead fuels
  • fire management
  • fire size
  • flame length
  • fuel loading
  • fuel management
  • fuel models
  • fuel moisture
  • grasslands
  • headfires
  • herbaceous vegetation
  • Idaho
  • litter
  • moisture
  • Montana
  • mosaic
  • Oregon
  • range management
  • rate of spread
  • sampling
  • shrubs
  • sloping terrain
  • statistical analysis
  • wind
Record Maintained By:
Record Last Modified: March 18, 2021
FRAMES Record Number: 45643
Tall Timbers Record Number: 21202
TTRS Location Status: In-file
TTRS Call Number: Fire File
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.


Rate of fire spread and flame length were observed on six prescribed headfires in the sagebrush (Artemisia)/bunchgrass vegetation type in western North America. Spread rate and flame length predictions from the fire behavior prediction system BEHAVE reasonably matched mean observed values from individual fires, although individual observations within a fire did not match as closely. Fuel bed discontinuity and irregular windspeed may explain most of the variation. The BEHAVE system was used to range the fuel and environmental parameters within values observed on site. This reduced the percentage of fire behavior observations outside the predicted range. Methods are discussed for sampling live and dead fuel loads and moisture contents and the behavior of fire in this vegetation type.

Bushey, C. L. 1985. Comparison of observed and predicted fire behavior in the sagebrush/bunchgrass vegetation type, Proceedings of a symposium: fire management: the challenge of protection and use. Logan, UT. Utah State University,Logan, UT. p. 187-201,