Long-term development of regeneration under longleaf pine seedtree and shelterwood stands

Title:	Long-term development of regeneration under longleaf pine seedtree and shelterwood stands
Author(s):	Boyer, William D.
Date:	1993
Source:	Southern Journal of Applied Forestry 17(1993):10-15.
Description:	Well-stocked mature longleaf pine (Pinus palustris Mill.) stands were cut tofive residual basal areas in 1957, namely 9,18,2 7.36, and 45 ft² per ac, to observe the effect of stand density on seed production and seedling establishment. Seedlings, mainly from the 195.5 or 1961 seed crops, were established in treated stands. All pines on net 0.9 ac plots were remeasured in 1991 to determine rhe effect of residual pine density on development of the regeneration. Even the lightest residual overstory converted the structure of 29- to 35-yr- old ingrowth into rhe reverse-diameter class distribution characteristic of uneven-aged stands. Four or six residual trees, now comprising 7 yo 10 ft² basal area (ba)lac, reduced ingrowth basal area to about half that of same-aged stands releasedfrom overstory competition. Merchantable volume of ingrowth under these low residual densities averaged 40% of that in released stands. Mean annual per ac volume increment of ingrowth averaged 21 to 22 ft³ under the 9 ft²Desity but did not exceed 7ft³ under any residual density above this. The potential impact of significant growth reductions should be taken into account when considering uneven-aged management methods for longleaf pine.
Key Words:
	View and Print this Publication (305k)
Pristine Version	An uncaptured or "pristine" version of this publication is available. It has not been subjected to OCR (Optical Character Recognition) and therefore does not have any errors in the text. However it is a larger file size and some people may experience long download times. The "pristine" version of this publication is available here: View and Print the PRISTINE copy of this Publication (2.4 MB)
Publication Notes:	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. Our on-line publications are scanned and captured using Adobe Acrobat. During the capture process some typographical errors may occur. Please contact the SRS Webmaster, webmaster@srs.fs.usda.gov if you notice any errors which make this publication unuseable.
Evaluate this Publication	Please take a moment to give us your feedback on this publication.
	Get Adobe Acrobat Reader 5.0 or Acrobat Reader 5.0 for Windows with Search and Accessibility