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

    Description

    Calculating stand biomass potential is an increasingly important aspect of silviculture, particularly when attempting to restore forest ecosystems or determining additionality in sequestered carbon. However, the lumbering of the original forests of the Midsouth region of the United States of America, coupled with the accelerating conversion of unmanaged natural-origin stands to loblolly pine (Pinus taeda L.) plantations, make quantifying historic biomass difficult. If carefully done, it is possible to estimate presettlement biomass from past references and modern-day old pine-hardwood remnants. Pine sawtimber-only volume estimates from old reports indicated low biomass in the virgin pine-dominated forests of the Midsouth, from as little as 10–14 Mg/ha up to 72 Mg/ha. Given the incompleteness of these lumber yield-only data, a set of more detailed stand table-based historic descriptions were then coupled in this study with modern allometric equations to produce more complete estimates of biomass. These suggested that presettlement pine-hardwood stands of this region averaged ~112 Mg/ha in total (above- and below-ground) live tree biomass (range = 54–171 Mg/ha; n = 6 stands). Contemporary old forests are considerably better stocked, with an estimated 224–318 Mg/ha (n = 6 stands). Individual loblolly pines from the historic period reached 183 cm in diameter and may have had as much as 32 Mg of biomass, though specimens <6 Mg were considerably more common. Large individual tree values but low stand levels imply disturbance (especially fire) regulated total tree biomass in historic forests of the Midsouth. These results further indicate that extensive restoration of modern unmanaged forests to past stand structures will likely decrease regional biomass.

    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

    Bragg, Don C. 2012. Developing contemporary and historical live tree biomass estimates for old pine-hardwood stands of the Midsouth, USA. Forest Ecology and Management 281:32-40.

    Keywords

    carbon sequestration, loblolly pine, restoration, shortleaf pine, virgin forests

    Related Search


    XML: View XML
Show More
Show Fewer
Jump to Top of Page