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    • Rangeland Ecology & Management, Volume 66 (2013)
    • Rangeland Ecology & Management, Volume 66, Number 3 (May 2013)
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    Models for Predicting Fuel Consumption in Sagebrush-Dominated Ecosystems

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    Author
    Wright, Clinton S.
    Issue Date
    2013-05-01
    Keywords
    Artemisia tridentata
    big sagebrush
    fire effects
    modeling
    shrubs
    
    Metadata
    Show full item record
    Citation
    Wright, C. S. (2013). Models for predicting fuel consumption in sagebrush-dominated ecosystems. Rangeland Ecology & Management, 66(3), 254-266.
    Publisher
    Society for Range Management
    Journal
    Rangeland Ecology & Management
    URI
    http://hdl.handle.net/10150/642711
    DOI
    10.2111/REM-D-12-00027.1
    Additional Links
    https://rangelands.org/
    Abstract
    Fuel consumption predictions are necessary to accurately estimate or model fire effects, including pollutant emissions during wildland fires. Fuel and environmental measurements on a series of operational prescribed fires were used to develop empirical models for predicting fuel consumption in big sagebrush (Artemisia tridentata Nutt.) ecosystems. Models are proposed for predicting fuel consumption during prescribed fires in the fall and the spring. Total prefire fuel loading ranged from 5.3-23.6 Mgha-1; between 32% and 92% of the total loading was composed of live and dead big sagebrush. Fuel consumption ranged from 0.8-22.3 Mgha-1, which equates to 11-99% of prefire loading (mean=59%). Model predictors include prefire shrub loading, proportion of area burned, and season of burn for shrub fuels (R2=0.91). Models for predicting proportion of area burned for spring and fall fires were also developed (R2=0.64 and 0.77 for spring and fall fire models, respectively). Proportion of area burned, an indicator of the patchiness of the fire, was best predicted from the coverage of the herbaceous vegetation layer, wind speed, and slope; for spring fires, day-of-burn 10-h woody fuel moisture content was also an important predictor variable. Models predicted independent shrub consumption measurements within 8.1% (fall) and 12.6% (spring) for sagebrush fires.
    Type
    text
    Article
    Language
    en
    ISSN
    0022-409X
    ae974a485f413a2113503eed53cd6c53
    10.2111/REM-D-12-00027.1
    Scopus Count
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    Rangeland Ecology & Management, Volume 66, Number 3 (May 2013)

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