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January 18, 2010 | History

Field survey of growth and colonization of nonnative trees on mainland Alaska 1 edition

Field survey of growth and colonization of nonnative trees on mainland ...
John Norman Alden

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Field survey of growth and colonization of nonnative trees on mainland Alaska
John Alden.

Published 2006 by U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station in Portland, OR .
Written in English.

About the Book

Six of nine nonnative boreal conifers in three genera (Abies, Larix, and Pinus) regenerated in 11 to 31 years after they were introduced to mainland Alaska. Lodgepole pine (Pinus contorta var. latifolia Engel.) and the Siberian larches (Larix sibirica Ledeb. and L. sukaczewii N. Dyl.) were the most widely introduced species and will likely be the first nonnative conifers to naturalize. Siberian larch grew up to six times more stem volume than white spruce in the first 40 years on upland sites, but was susceptible to the larch sawfly and a blue stain pathogen carried by bark beetles. On productive sites, lodgepole pine appeared to grow more stem wood than white spruce for about 35 years after planting. Snowshoe hares and moose were the most serious pests of the nonnative conifers. Balsam fir (Abies balsamea (L.) Mill.) was the only species to regenerate in an established moss understory. Growth and age relationships were negative for all adequately sampled nonnative conifers and positive for native white spruce (Picea glauca (Moench) Voss). Data were insufficient to assess niche availability for commercial use of productive nonnative conifers in mixed stands in Alaska. Survey results indicate that introduction and naturalization of noninvasive tree species may improve the diversity, stability, and productivity of managed forest ecosystems.

Edition Notes

"April 2006."

Includes bibliographical references (p. 44-48).

Also available via Internet.

Series
General technical report PNW -- GTR-664., General technical report PNW -- 664.

The Physical Object

Pagination
74 p. :
Number of pages
74

ID Numbers

Open Library
OL16136571M

History Created December 11, 2009 · 2 revisions Download catalog record: RDF / JSON

January 18, 2010 Edited by WorkBot add subjects and covers
December 11, 2009 Created by WorkBot add works page