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    Author(s): Clive M. Countryman
    Date: 1982
    Source: Gen. Tech. Rep. PSW-61. Berkeley, Calif.: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Exp. Stn. 8 p
    Publication Series: General Technical Report (GTR)
    Station: Pacific Southwest Research Station
    PDF: Download Publication  (510 KB)


    Brush species make up much of the fuel load in forested wildlands. Basic physical and chemical characteristics of these species influence ease of ignition, rate of fire spread, burning time, and fire intensity. Quantitative knowledge of the variations in brush characteristics is essential to progress in fire control and effective use of fire in wildland management. Five shrub species common to northern California brush fuels were analyzed in this study-greenleaf manzanita, snowbrush, mountain whitethorn, chinkapin, and bitter cherry. Quantitative data on ash content, fuel density, solvent extractives, surface-to-volume ratios, heating values, fuel loading by size classes of material, relative amounts of dead and living fuels, vertical distribution of fuel elements, and amount of litter fuel are provided.

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    Countryman, Clive M. 1982. Physical characteristics of some northern California brush fuels. Gen. Tech. Rep. PSW-GTR-61. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 8 p.


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    fuel characteristics, fuel loading, brush fuels, wildland fuels

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