Other Scholarly Content

 

A pioneer exotic tree search for the douglas fir region Public Deposited

Downloadable Content

Download PDF
https://ir.library.oregonstate.edu/concern/defaults/k3569571p

Descriptions

Attribute NameValues
Alternative Title
Creator
Abstract
  • After three-quarters of a century of introduction of 152 conifer and broadleaf species, no promising candidate exotic was found for the Douglas-fir region. Growth curves spanning 50 years or longer are figured for many species. Firs, pines, larches, spruces, hemlocks, and cedars originating in northwestern North America had superior growth rates to those from other forest regions. The probable basis for these differences is discussed. The record highlights a general failure of introduced hardwoods, the slow decline of most introduced conifers, the long time needed to express failures, dramatic effects of climatic extremes or of introduced pests, failure of native species of continental origin at Wind River, striking similarities of growth rates for the species originating in each country, and many important contrasts between results from early reports and long-term conclusions.
  • Keywords: Plant introduction, forest genetics, arboreta, conifers, silviculture, growth curves, exotics, seed movement, introduced pests, climatic extremes.
Resource Type
Date Available
Date Issued
Citation
  • Silen, Roy R.; Olson, Donald L. 1992. A pioneer exotic tree search for the Douglas-fir region. Gen. Tech. Rep. PNW-GTR-298. Portland, OR: U.S. Depart­ment of Agriculture, Forest Service, Pacific Northwest Research Station. 44 p.
Series
Subject
Rights Statement
Publisher
Peer Reviewed
Language
Digitization Specifications
  • File scanned at 300 ppi using ScandAll PRO 1.8.1 on a Fi-6670 in PDF format. CVista PdfCompressor 5.0 was used for pdf compression and textual OCR.
Replaces
Additional Information
  • description.provenance : Submitted by Katy Davis (kdscannerosu@gmail.com) on 2014-04-23T17:28:47Z No. of bitstreams: 1 Pioneer.pdf: 6735397 bytes, checksum: f22be6ad7ca52c079ac41b3b8637ca2a (MD5)
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2014-04-24T17:09:51Z (GMT) No. of bitstreams: 1 Pioneer.pdf: 6735397 bytes, checksum: f22be6ad7ca52c079ac41b3b8637ca2a (MD5)
  • description.provenance : Made available in DSpace on 2014-04-24T17:09:51Z (GMT). No. of bitstreams: 1 Pioneer.pdf: 6735397 bytes, checksum: f22be6ad7ca52c079ac41b3b8637ca2a (MD5) Previous issue date: 1992-03
Location

Relationships

Parents:

This work has no parents.

Items