You are here: Home
/ Publication Information
Title: Group selection - problems and possibilities and for the more shade-intolerant species
Author: Murphy, Paul A.; Shelton, Michael G.; Graney, David L.;
Source: 9th Central Hardwood Forest Conference, p. 229 - 247
Publication Series: Miscellaneous Publication
Description: The group selection method is a hybrid, drawing key elements from both even- and uneven-aged silviculture. It is perhaps the least used and understood of all reproductive cutting methods, but it is gaining popularity because of the current disfavor of even-aged silviculture. The group selection method appears promising for regenerating shade-intolerant and intermediate-tolerant species. Research has shown that larger openings create conditions favorable to shade-intolerant species, while smaller openings favor the more shade-tolerant ones. Larger openins consist of a central core that is relatively unaffected by the adjoining stand and a periphery with increasing levels of suppression. Operationally, most opening widths very around one to two times the dominant tree height in the residual stand, but research has yet to verify the long-term stand dynamics within openings. Even less is known about effective stand-regulation options available to provide sustained yields. One route is to adapt stand structure or volume control from the single-tree selection system. An alternative is to use (1) the silvical requirements of the target species to set opening size and (2) area control to determine the number of openings to create each cutting cycle. This latter approach seems to have advantages for applications in even-aged stands that are being converted to uneven-aged ones.
- 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 email@example.com to request a hard copy of this publication. (Please specify exactly
which publication you are requesting and your mailing address.)
XML: View XML
Murphy, Paul A.; Shelton, Michael G.; Graney, David L. 1993. Group selection - problems and possibilities and for the more shade-intolerant species. 9th Central Hardwood Forest Conference, p. 229 - 247
Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility