Graduate Thesis Or Dissertation
 

The effects of tree position and silvicultural practices on treatability of Douglas-fir lumber

Public Deposited

Downloadable Content

Download PDF
https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/2n49t429z

Descriptions

Attribute NameValues
Creator
Abstract
  • In spite of the lack of accurate information about the treatability of western wood species with waterborne wood preservatives, consumption of these products continues to increase. Western wood species, notably Douglas-fir, are notoriously difficult to treat with waterborne systems, yet there is relatively little data on the effects of wood characteristics on treatment. In this study, Douglas-fir grown under various silvicultural regimes and collected through a stand management cooperative, was treated with ammoniacal copper zinc arsenate (ACZA) or chromated copper arsenate (CCA) to determine the effects of wood and stand characteristics on treatability. Nine geographic locations within the Pacific Coastal region and 3 different silviculture regimes (none, thinned, thinned and fertilized) were studied. Geographic location and prior silvicultural practices were associated with significant effects on treatment of wood from some sites. ACZA or CCA treatability did not significantly differ with position in the tree, but there were significant differences in CCA or ACZA treatability with juvenile wood percentage. These patterns were not consistent in CCA treatments. These results suggest that some silvicultural practices such as thinning or fertilizing may impact wood characteristics which in turn affect treatability.
Resource Type
Date Available
Date Issued
Degree Level
Degree Name
Degree Field
Degree Grantor
Commencement Year
Advisor
Committee Member
Academic Affiliation
Non-Academic Affiliation
Subject
Rights Statement
Publisher
Language
Digitization Specifications
  • File scanned at 300 ppi (Monochrome) using Capture Perfect 3.0.82 on a Canon DR-9080C in PDF format. CVista PdfCompressor 4.0 was used for pdf compression and textual OCR.
Replaces

Relationships

Parents:

This work has no parents.

In Collection:

Items

Thumbnail Title Date Uploaded Visibility Actions
file details RedactedHongSeungdo1994.pdf 2017-08-07 Public Download