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    Author(s): Douglas E. Miller; Thomas J. Straka; Bryce J. Stokes; William Watson
    Date: 1987
    Source: For. Prod. J. 37(5): 39-43.
    Publication Series: Miscellaneous Publication
    PDF: View PDF  (240 KB)

    Description

    Conventional harvesting equipment was tested for removing forest understory biomass (energywood) for use as fuel. Two types of systems were tested--a one-pass system and a two-pass system. In the one-pass system, the energywood and pulpwood were harvested simultaneously. In the two-pass system, the energywood was harvested in a first pass through the stand, and the pulpwood was harvested iris second pass. These systems were tested over a range of understory biomass amounts. Equations were developed to estimate the cost per green ton of energywood. The two-pass system exhibited high harvesting costs when biomass amounts were low, but costs moderated as biomass amounts increased. The one-pass system harvesting costs were not sensitive to the amount of energywood present.

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    Citation

    Miller, Douglas E.; Straka, Thomas J.; Stokes, Bryce J.; Watson, William. 1987. Productivity and cost of conventional understory biomass harvesting systems. For. Prod. J. 37(5): 39-43.

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