Skip to page content
USDA Forest Service

Research & Development Treesearch

Treesearch Home
About Treesearch
Contact Us
Research & Development
Forest Products Lab
International Institute of Tropical Forestry
Pacific Northwest
Pacific Southwest
Rocky Mountain
Southern Research Station
Help - We Participate  Government Made Easy

Global Forest Information Service

US Forest Service
P.O. Box 96090
Washington, D.C.

(202) 205-8333

You are here: Home / Search / Publication Information
Bookmark and Share

Publication Information

View PDF (99 KB bytes)

Title: Rectangular Spacing: An Economic Benefit?

Author: VanderSchaaf, Curtis L.; South, David B.;

Date: 2004

Source: Gen. Tech. Rep. SRS–71. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. pp. 437-440

Publication Series: Miscellaneous Publication

   Note: This article is part of a larger document. View the larger document

Description: Many loblolly pine (Pinus taeda L.) plantations are established at row spacings of 8 to 12 feet, but some compa-nies are now using rows spaced 14 to 18 feet apart. Wide rows reduce establishment costs when sites are bedded, ripped, or machine planted. The cost of chemicals is also reduced when treatments are applied in bands along the row. A growth and yield program (Ptaeda2.1V) was used to predict volume losses from planting in 14- to 20-foot rows. Results suggest that when a thinning (to a constant basal area) is conducted at age 15, a rectangularity ratio of 2:1 reduces the amount of sawtimber predicted at age 23 by only 1 to 2 percent when compared to a square spacing. The cost savings associated with wider rows results in a slight increase in net present value (NPV). Field trials are needed to verify the biological effects of wide rows on volume growth and branch size of plantations established with less than 600 trees per acre.

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.
  • 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.)



VanderSchaaf, Curtis L.; South, David B. 2004. Rectangular Spacing: An Economic Benefit?. Gen. Tech. Rep. SRS–71. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. pp. 437-440


 [ Get Acrobat ]  Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility

USDA logo which links to the department's national site. Forest Service logo which links to the agency's national site.