Skip to page content
USDA Forest Service
  
Treesearch

Research & Development Treesearch

 
Treesearch Home
About Treesearch
Contact Us
Research & Development
Forest Products Lab
International Institute of Tropical Forestry
Northern
Pacific Northwest
Pacific Southwest
Rocky Mountain
Southern Research Station
Help
 

Science.gov - We Participate


USA.gov  Government Made Easy


Global Forest Information Service

US Forest Service
P.O. Box 96090
Washington, D.C.
20090-6090

(202) 205-8333

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

Publication Information

View PDF (370 KB bytes)

Title: Wood productivity of Pacific Northwest Douglas-fir: estimates from growth-and-yield models.

Author: Marshall, David D.; Turnblom, Eric C.;

Date: 2005

Source: Journal of Forestry. 103(2): 71-72

Publication Series: Miscellaneous Publication

Description: With increases in harvest of forests in the Pacific Northwest during the late 1800s and early 1900s came a concern for future timber supplies. Unsuccessful attempts at selective logging in Douglas-fir (Pseudotsuga menziesii (Mirb.) France) and a better understanding of requirements for natural regeneration led to the adoption of moderate-sized clearcuts with adjacent uncut timber as a seed source (Curtis and Carey 1996). As a response of the need for more dependable regeneration, the 1950s saw a shift to artificial regeneration methods and the establishment of state forest practice regulations to insure prompt reforestation. This eliminated the need for leaving onsite seed sources, making further increases in cut unit-size possible. Through the 1960s and 1970s, research improved the quality and survival of planted seedlings through the selection of genetically appropriate trees for individual sites, better nursery practices, site preparation, and early control of competing vegetation. Miller and others (1993) compared paired plots in naturally regenerated and planted Douglas-fir stands 35 to 38 years after harvest at seven locations in the Cascades of Oregon and Washington and found 40 percent more volume per acre and an 8 percent greater average diameter in the planted stands. The authors attributed the volume differential to differences in the pattern of stand development, e.g., planted stands reached breast height an average of 3 years sooner.

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 pnw_pnwpubs@fs.fed.us to request a hard copy of this publication. (Please specify exactly which publication you are requesting and your mailing address.)

XML: View XML

Citation:


Marshall, David D.; Turnblom, Eric C. 2005. Wood productivity of Pacific Northwest Douglas-fir: estimates from growth-and-yield models. Journal of Forestry. 103(2): 71-72

 


 [ 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.