Response of Loblolly Pine Plantations to Woody and Herbaceous Control--Eigth-Year Results of the Region-wide Study-The COMProject

  • Authors: Zutter, B.R.; Miller, James H.; Eedaker, S.M.; Edwards, M.B.; Newbold, R.A.
  • Publication Year: 1995
  • Publication Series: Miscellaneous Publication
  • Source: In: Edwards, M. Boyd, camp. proceedings of the eight biennial southern silvicultural research conference; 1994 November 1-3; Auburn, AL. Gen. Tech. Rep. SRS-1. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. 75-80.

Abstract

Eight-year response of planted loblolly pine to woody and herbaceous control following site preparation, studied at 13 locations, differed by pine response variable and hardwood level grouping. Treatments affected average pine height the same at both low hardwood (<6ft2/ac basal area at age 8) and high hardwood (>13ft2/ac) levels, and ranked: total control (woody + herb control) > herb control only > woody control only > no control. The same ranking held for pine dbh, basal area/ac, and volume index/ac at teh low hardwood level. However, at the high hardwood level, dbh response from woody control only exceeded that for herb control only, while basal area/ac and volume index/ac response were equal for the two treatments. Volume index increases over no control on the low and high hardwood levels averaged 127% and 336% greater with total control; 32% and 57% greater with woody control only; and 92% and 73% with herb control only, respectively. Treatment effects on all pine response variables were additive at the low hardwood level, and more than additive at the high hardwood level.

  • Citation: Zutter, B.R.; Miller, James H.; Eedaker, S.M.; Edwards, M.B.; Newbold, R.A. 1995. Response of Loblolly Pine Plantations to Woody and Herbaceous Control--Eigth-Year Results of the Region-wide Study-The COMProject. In: Edwards, M. Boyd, camp. proceedings of the eight biennial southern silvicultural research conference; 1994 November 1-3; Auburn, AL. Gen. Tech. Rep. SRS-1. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. 75-80.
  • Posted Date: April 1, 1980
  • Modified Date: August 22, 2006
  • Print Publications Are No Longer Available

    In an ongoing effort to be fiscally responsible, the Southern Research Station (SRS) will no longer produce and distribute hard copies of our publications. Many SRS publications are available at cost via the Government Printing Office (GPO). Electronic versions of publications may be downloaded, printed, and distributed.

    Publication Notes

    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
    • Our online publications are scanned and captured using Adobe Acrobat. During the capture process some typographical errors may occur. Please contact the SRS webmaster if you notice any errors which make this publication unusable.
    • To view this article, download the latest version of Adobe Acrobat Reader.