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
    Author(s): Jesse K. Kreye; J. Morgan Varner; Jeffrey M. Kane; Eric E. Knapp; Warren P. Reed
    Date: 2016
    Source: International Journal of Wildland Fire. 25(9): 1002
    Publication Series: Scientific Journal (JRNL)
    Station: Pacific Southwest Research Station
    PDF: View PDF  (401.0 KB)

    Description

    Mastication of shrubs and small trees to reduce fire hazard has become a widespread management practice, yet many aspects of the fire behaviour of these unique woody fuelbeds remain poorly understood. To examine the effects of fuelbed aging on fire behaviour, we conducted laboratory burns with masticated Arctostaphylos spp. and Ceanothus spp. woody debris that ranged from 2 to 16 years since treatment. Masticated fuels that were 10 years or older burned with 18 to 29% shorter flame heights and 19% lower fireline intensities compared with the younger fuelbeds across three different fuel loads (25, 50 and 75 Mg ha-1). Older fuelbeds smouldered for almost 50% longer than the younger masticated fuelbeds. Fuel consumption was 96% in the two higher fuel load categories regardless of fuelbed age, whereas consumption was 77% in the lighter fuel load. Fire intensity in masticated fuels may decrease over time owing to particle degradation, but in dry environments where decomposition is slow, combustion of the remaining fuels may still pose risks for tree mortality and smoke production associated with protracted smouldering.

    Publication Notes

    • You may send email to rmrspubrequest@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

    Kreye, Jesse K.; Varner, J. Morgan; Kane, Jeffrey M.; Knapp, Eric E.; Reed, Warren P. 2016. The impact of aging on laboratory fire behaviour in masticated shrub fuelbeds of California and Oregon, USA. International Journal of Wildland Fire. 25(9): 1002.

    Cited

    Google Scholar

    Keywords

    fireline intensity, fuel decomposition, fuels treatments, mechanical mastication, smouldering combustion

    Related Search


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