Skip to Main Content
Growth after thinning a 35-year-old natural stand to different loblolly pine and hardwood basal areasAuthor(s): Michael G. Shelton; Paul A. Murphy
Source: Southern Journal of Applied Forestry. 21(4): 168-174.
Publication Series: Miscellaneous Publication
PDF: View PDF (497 KB)
DescriptionGrowth was monitored for 4 years in a thinned stand in southern Arkansas with three pine basal areas (70, 85, and 100 ft2/ac) and three hardwood basal areas (0, 15, and 30 ft2/ac); pretreatment basal areasaveraged 119 and 33 ft2/ac for pines and hardwoods, respectively.Treatments were arranged in a 3 x 3 factorial randomized complete block design with three replicates, yielding 27 permanent 0.20 acre plots. Growth variables were regressed with residual pine and hardwood basal areas. Pine basal area and volume growth increased with the pine stocking level after thinning and decreased with the level of retained hardwoods. For basal area and merchantable volume, hardwood growth largely compensated for losses in the pine component, and thus, hardwood retention had little net effect on the total growth of the stand. The greatest impact of hardwood retention was on the stand's sawtimber growth, because hardwoods did not contribute to this product class. Each 1 ft2/ac of retained hardwood basal area reduced pine sawtimber growth by 6 to 10 bd ft (Doyle/ac/yr, depending on the pine stocking. Because large differences existed in the value of timber products, retaining 15 and 30 ft2/ac of hardwoods reduced the value of timber production by 13 and 24 percent, respectively, at 4 years after thinning.
- You may send email to firstname.lastname@example.org 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.
CitationShelton, Michael G.; Murphy, Paul A. 1997. Growth after thinning a 35-year-old natural stand to different loblolly pine and hardwood basal areas. Southern Journal of Applied Forestry. 21(4): 168-174.
- Rehabilitation of Understocked Loblolly-Shortleaf Pine Stands - III. Natural Stands Cutover 15 Years Previously but Unmanaged
- Growth and Yield Relative to Competition for Loblolly Pine Plantations to Midrotation- A Southeastern United States Regional Study
- Relationships among woody and herbaceous competition and loblolly pine through mid-rotation (COMP)
XML: View XML