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Activity Fuels

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Synonyms

Logging slash; Masticated fuels; Piled slash; Thinning slash; Wildland fuels

Definition

An activity fuel is defined as live or dead vegetative matter that has accumulated or has been altered through active vegetation management such as timber harvest, thinning, pruning, mastication, chipping, or a combination of approaches.

Introduction

Wildland fuels are defined as the live and dead vegetative matter that contributes to wildland fire (Davis 1959). The fuels include the boles and canopies of trees, shrub stems and leaves, grass and herbaceous vegetation, sound and rotten woody material, needle and leaf litter, moss, lichen, and decayed organic material often referred to as duff. The vegetative biomass is often arranged into distinct categories including trees, shrubs, grasses, wood, litter, and duff (Fig. 1, Ottmar et al. 2007). The array of these categories is defined as a fuel bed and has unique characteristics of loading, depth, height, and bulk density that, along with...

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References

  • Davis KP (1959) Forest fire: control and use. McGraw-Hill, New York

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  • Ottmar RD, Hardy CC (1989) Stereo photo series for quantifying forest residues in coastal Oregon forests: Second-growth Douglas fir-western hemlock type, western hemlock – Sitka spruce type, and red alder type. General technical report PNW-GTR-231. U.S. Department of Agriculture Forest Service, Pacific Northwest Research Station, Portland, 67 p

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  • Ottmar RD, Sandberg DV, Riccardi CL, Prichard SJ (2007) An overview of the fuel characteristic classification system – quantifying, classifying, and creating fuelbeds for resource planning. Can J For Res 37(12):2383–2393

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  • Prichard SJ, Sandberg DV, Ottmar RD, Eberhardt E, Andreu A, Eagle P, Swedin K (2013) Fuel characteristic classification system version 3.0: technical documentation. General technical report PNW-GTR-887. U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station, Portland, 79 p

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  • Prichard SJ, Andreu AG, Ottmar RD, Eberhard E (2019) Fuel Characteristic Classification System (FCCS) Field sampling and fuelbed development guide. General technical report PNW-GTR-972. US Forest Service Pacific Northwest Research Station, Portland, 86 p

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Correspondence to Roger D. Ottmar .

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Ottmar, R.D. (2019). Activity Fuels. In: Manzello, S. (eds) Encyclopedia of Wildfires and Wildland-Urban Interface (WUI) Fires. Springer, Cham. https://doi.org/10.1007/978-3-319-51727-8_232-1

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  • DOI: https://doi.org/10.1007/978-3-319-51727-8_232-1

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-51727-8

  • Online ISBN: 978-3-319-51727-8

  • eBook Packages: Springer Reference EngineeringReference Module Computer Science and Engineering

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