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


    Following a 3-year drought from 1998 to 2000, oak decline symptoms began to appear throughout many parts of the Ozark Highland region of Arkansas and Missouri. Changes in down deadwood that occurred at one site during the oak decline event are described and discussed. In 2000, 24 deadwood measurement plots 0.2025 ha (45 m by 45 m) in size were established. The down deadwood on all plots was remeasured in the spring of 2005. Because 6 plots were burned in March of 2004, changes on only 18 of the 24 plots are considered. In each inventory, all down dead woody material with a diameter of 10 cm or greater was measured on each plot. Changes in volume occurred across the site. Overall, median total volume increased from 15.8 m3/ha to 22.9 m3/ha (p = 0.016). Down woody material was further divided into decomposition classes 1 through 5, where class 1 represents the least decomposed and class 5 represents the most decomposed material. Decomposition class 1 increased from a median of 0 m3/ha in 2000 to 0.13 m3/ha in 2005 (p = < 0.001). Class 2 increased from a mean of 2.1 m3/ha in 2000 to 4.7 m3/ha in 2005 (p = 0.013). There were no significant changes in down deadwood volume for decomposition classes 3, 4, or 5. The number of pieces of down deadwood also increased from a mean of 184 pieces per ha in 2000 to 245 pieces per ha in 2005 (p = 0.003). Results show an increase in down deadwood input. However, at this stage increases are generally in the smallest, least decomposed material on this dry and rocky site. The diameters of down deadwood pieces are small because inputs are mostly from branches and small trees. Most large trees that died have remained standing.

    Publication Notes

    • You may send email to 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.


    Spetich, Martin A. 2007. Down deadwood dynamics on a severely impacted oak decline site. e-Gen. Tech. Rep. SRS–101. U.S. Department of Agriculture, Forest Service, Southern Research Station: 206-213 [CD-ROM].

    Related Search

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