Crown Expansion and Stem Radial Growth of Douglas-Fir as Influenced by Release

$29.50 plus tax (Refund Policy)

Buy Article:

Abstract:

A study of 32 felled and dissected codominant trees (29 released and 3 unreleased) in a 50-year-old Pseudotsuga menziesii stand in western Washington indicated that release tends to reduce rather than accelerate crown expansion during the first few growing seasons following thinning. This effect was most pronounced in the upper part of the crown. Moreover, when released and unreleased sides of a given tree were compared, no differences in branch elongation were apparent. Stem radial growth was increased by release, progressively improving lower on the stem. Thus, apparently crown buildup was not a major contributing factor in the stem-growth response of released trees.

Document Type: Journal Article

Affiliations: Staff of the Pacific Northwest Forest and Range Expt. Sta., Forest Service, U.S. Dept. Agric., Portland, Ore.

Publication date: June 1, 1964

More about this publication?
  • Membership Information
  • ingentaconnect is not responsible for the content or availability of external websites
Related content

Tools

Favourites

Share Content

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more