Skip to Main Content
Stand development 18 years after gap creation in a uniform Douglas-fir plantationAuthor(s): Robert O. Curtis; Constance A. Harrington; Leslie C. Brodie
Source: Res. Pap. PNW-RP-610. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 28 p.
Publication Series: Research Paper (RP)
Station: Pacific Northwest Research Station
Download Publication (4.0 MB)
Related Research Highlights
Thinning to create gaps in forest canopy increases structural variability in conifer plantations
DescriptionThis report gives early results, 18 years after treatment and 30 years after planting, from a trial of early thinning and gap creation intended to increase biodiversity in a very uniform extensive Douglas-fir plantation. Gap creation has introduced canopy irregularity and a substantial hemlock component into what was originally a very uniform pure Douglas-fir plantation, produced some natural regeneration of Douglas-fir, and considerably changed diameter distributions. Long-term effects will depend on whether additional stand density manipulation is carried out in coming years.
- Visit PNW's Publication Request Page to request a hard copy of this publication.
- 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.
CitationCurtis, Robert O.; Harrington, Constance A.; Brodie, Leslie C. 2017. Stand development 18 years after gap creation in a uniform Douglas-fir plantation. Res. Pap. PNW-RP-610. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 28 p.
KeywordsPseudotsuga menziesii, variable density thinning, biodiversity, stand structure.
- Growth of site trees and stand structure in mixed stands of Pacific silver fir and western hemlock.
- Hemlock declines rapidly with hemlock woolly adelgid infestation: impacts on the carbon cycle of the Southern Appalachian forests
- A comparison of conifers planted on the Hemlock Experimental Forest.
XML: View XML