Skip to Main Content
U.S. Forest Service
Caring for the land and serving people

United States Department of Agriculture

Home > Search > Publication Information

  1. Share via EmailShare on FacebookShare on LinkedInShare on Twitter
    Dislike this pubLike this pub
    Author(s): Johnny Grace IIIJohn Klepac; S. Taylor; Dana Mitchell
    Date: 2016
    Source: ASABE Paper Number 162458172
    Publication Series: Scientific Journal (JRNL)
    Station: Southern Research Station
    PDF: View PDF  (628.0 KB)

    Description

    Forest biomass is anticipated to play a significant role in addressing an alternative energy supply. However, the efficiencies of current state-of-the-art recovery systems operating in forest biomass harvests are still relatively unknown. Forest biomass harvest stands typically have higher stand densities and smaller diameter trees than conventional stands which may result in reduced recovery efficiencies. In this study, we explore the spatial and temporal effects on residue distribution as a result of biomass harvest of 14-year- and 24-year-old loblolly pine (Pinus taeda) plantations at stand densities of 1500 and 1900 trees per hectare, respectively. Additionally, we explore biomass recovery efficiency by a harvesting system that was specifically designed for southern pine plantation biomass harvests. Pre-harvest aboveground biomass for the younger site was half that of the older site (240 vs. 420 t ha-1) with approximately 79% and 86% being merchantable biomass, respectively. The pre-harvest condition exhibited 100 percent ground cover; whereas, post-harvest conditions had nearly 20 percent of the area designated as bare based on the residue distribution assessments. The assessments found increased incidence of ground cover in the finer biomass classes in comparison to the larger debris and bare classifications. The harvesting operations recovered 85 percent of standing biomass in a 24-year old stand and 90 percent of the standing biomass in a 14-year old stand. In general, harvesting the plantations increased downed woody material on site and these unrecovered residues are expected to satisfy objectives related to maintaining site productivity, minimizing erosion, and preserving ecological values.

    Publication Notes

    • You may send email to pubrequest@fs.fed.us to request a hard copy of this publication.
    • (Please specify exactly which publication you are requesting and your mailing address.)
    • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Grace III, J.M., Klepac, J.F., Taylor, S., Mitchell, D. 2016. Residue distribution and biomass recovery following biomass harvest of plantation pine. ASABE Paper Number 16 2458172. St. Joseph, MI: ASABE. DOI: 10.13031/aim.20 2458172

    Cited

    Google Scholar

    Keywords

    forest biomass, spatial variability, residue distribution, residue quantification, efficiency, site assessment

    Related Search


    XML: View XML
Show More
Show Fewer
Jump to Top of Page
https://www.fs.usda.gov/treesearch/pubs/52711