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    Author(s): Eric Rowell; E. Louise LoudermilkChristie Hawley; Scott Pokswinski; Carl Seielstad; LLoyd Queen; Joseph J. O'Brien; Andrew T. HudakScott Goodrick; J. Kevin. Hiers
    Date: 2020
    Source: Forest Ecology and Management
    Publication Series: Scientific Journal (JRNL)
    Station: Southern Research Station
    PDF: Download Publication  (874.0 KB)

    Description

    The spatial pattern of surface fuelbeds in fire-dependent ecosystems are rarely captured using long-standing fuel sampling methods. New techniques, both field sampling and remote sensing, that capture vegetation fuel type, biomass, and volume at super fine-scales (cm to dm) in three-dimensions (3D) are critical to advancing forest fuel and wildland fire science. Such scales are particularly important for some computational fluid dynamics fire behavior models that operate in 3D and have implications for wildland fire operations and fire effects research. This study describes the coupling of new 3D field sampling data with terrestrial laser scanning (TLS) data to infer fine-scale fuel mass in 3D. We found that there are strong relationships between fine-scale mass and TLS occupied volume, porosity, and surface area, which were used to develop fine-scale prediction equations using TLS across vegetative fuel types, namely grasses and shrubs. The application of this novel 3D sampling technique to high resolution TLS data in this study represents an advancement in producing inputs for computational fluid dynamics fire behavior models that will improve understanding fire-vegetation feedbacks in highly managed fire-dependent ecosystems.

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    Citation

    Rowell, Eric; Loudermilk, E. Louise; Hawley, Christie; Pokswinski, Scott; Seielstad, Carl; Queen, LLoyd; O'Brien, Joseph J.; Hudak, Andrew T.; Goodrick, Scott; Hiers, J. Kevin. 2020. Coupling terrestrial laser scanning with 3D fuel biomass sampling for advancing wildland fuels characterization. Forest Ecology and Management. 462: 117945-. https://doi.org/10.1016/j.foreco.2020.117945.

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https://www.fs.usda.gov/treesearch/pubs/59822