Skip to Main Content
U.S. Forest Service
Caring for the land and serving people

United States Department of Agriculture

Home > Search > Publication Information

  1. Share via EmailShare on FacebookShare on LinkedInShare on Twitter
    Dislike this pubLike this pub

    Description

    Current fire models are designed to model the spread of a linear fire front in dead, small-diameter fuels. Fires in predominantly living vegetation account for a large proportion of annual burned area nationally. Prescribed burning is used to manage living fuels; however, prescribed burning is currently conducted under conditions that result in marginal burning. We do not quantitatively understand the relative importance of the fuel and environmental variables that determine spread in live vegetation. Laboratory fires have been burned to determine the effects of wind, slope, moisture content, and fuel characteristics on fire spread in fuel beds of common chaparral species. Four species (Manzanita sp., Ceanothus sp., Quercus sp., or Arctostaphylos sp.), two wind velocities (0 and 2 m s-1) and three slope percents (0, 40, or 70%) were used. Oven-dry moisture content of fine fuels (< 6.25 mm diameter) ranged from 30% to 105%. Forty-nine of 90 fires successfully propagated the length (2.0 m) of the elevated fuel bed. A logistic model to predict the probability of successful fire spread was developed using stepwise logistic regression. The variables selected to predict propagation were wind speed, slope percent, moisture content, fuel loading, and relative humidity.

    Publication Notes

    • You may send email to psw_communications@fs.fed.us to request a hard copy of this publication.
    • (Please specify exactly which publication you are requesting and your mailing address.)
    • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Weise, D.R.; Zhou, Xiangyang; Sun, Lulu; Mahalingam, Shankar. 2005. Fire spread in chaparral – “go or no-go?” International Journal of Wildland Fire 14: 99-106

    Related Search


    XML: View XML
Show More
Show Fewer
Jump to Top of Page