Implications Of Research On Lodgepole Pine Introduction In Interior Alaska

Author : John Norman Alden
Publisher : Forgotten Books
ISBN 13 : 9780364060179
Total Pages : 38 pages
Book Rating : 4.0/5 (61 download)

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Download or read book Implications of Research on Lodgepole Pine Introduction in Interior Alaska (Classic Reprint) written by John Norman Alden and published by Forgotten Books. This book was released on 2018-03-18 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Implications of Research on Lodgepole Pine Introduction in Interior Alaska Lodgepole pine, Pinus contorta var. Iatifolia Engelm., from subarctic climates of central Yukon and northeast British Columbia is genetically variable and capable of rapid juvenile growth. Variation in growth and su rvival traits was determined for 11 subarctic lodgepole pine provenances and a jack pine, Pinus banksiana Lamb., provenance after 12 growing seasons at about 2-meter spacing in Fairbanks, Alaska. Interactions among the same provenances and sites at Fairbanks, Alaska, and Watson Lake and Whitehorse, Yukon, were assessed for 10-year tree height and mortality. In addition, 91ree species, including lodgepole pine, and 18 subarctic lodgepole pine and a natural jack pine lodgepole pine provenance were compared for growth, mortality, and apparent environmental injury after two growing seasons at two sites in interior Alaska and one growing season in south-central Alaska. Lodgepole pine and jack pine provenances from northeast British Columbia grew more than cubic meter of stem wood per tree annually from 9 to 12 years at Fairbanks, Alaska. The species sustained snow damage and mild winter injury, however, and could be at high risk for long-term management on severe sites. Interactions between provenances and sites for mortality, tree height, and volume were not significant (p at Fairbanks, Alaska, and Whitehorse, Yukon, but were significant for mortality and tree height at Watson Lake and Whitehorse, Yukon, and Watson Lake, Yukon, and Fairbanks, Alaska. Height of two subarctic prove nances from the upper Yukon drainage in southwest Yukon and northwest British Columbia were superior at Watson Lake and interior at Fairbanks and Whitehorse. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.