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    Author(s): John Loomis; Pete Wohlgemuth; Armando González-Cabán; Don English
    Date: 2003
    Source: Water Resources Research. 39(9), 1260
    Publication Series: Scientific Journal (JRNL)
    Station: Pacific Southwest Research Station
    PDF: Download Publication  (267.0 KB)


    A multiple regression analysis of fire interval and resulting sediment yield (controlling for relief ratio, rainfall, etc.) indicates that reducing the fire interval from the current average 22 years to a prescribed fire interval of 5 years would reduce sediment yield by 2 million cubic meters in the 86.2 square kilometer southern California watershed adjacent to and including the Angeles National Forest. This would have direct cost savings to Los Angeles County Public Works in terms of reduced debris basin clean out of $24 million. The net present values of both 5- and 10-year prescribed fire intervals are positive. However, given other multiple use objectives of the USDA Forest Service, a 10-year prescribed fire interval may be more optimal than a 5-year fire interval.

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    Loomis, John; Wohlgemuth, Pete; González-Cabán, Armando; English, Donald. 2003. Economic benefits of reducing fire-related sediment in southwestern fire-prone ecosystems. Water Resources Research. 39(9), 1260.


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    California, erosion, forest fire, national forests, recreation, sediment

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