Alaska's Spruce: Sitka Spruce, White Spruce
Author | : Verner Warren Clapp |
Publisher | : |
Total Pages | : 52 |
Release | : 1971 |
Genre | : Sitka spruce |
ISBN | : |
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Author | : Verner Warren Clapp |
Publisher | : |
Total Pages | : 52 |
Release | : 1971 |
Genre | : Sitka spruce |
ISBN | : |
Author | : Terry T. Brady |
Publisher | : |
Total Pages | : 58 |
Release | : 1979 |
Genre | : Forests and forestry |
ISBN | : |
Author | : Wilbur A. Farr |
Publisher | : |
Total Pages | : 36 |
Release | : 1967 |
Genre | : Forests and forestry |
ISBN | : |
Author | : Verner Warren Clapp |
Publisher | : |
Total Pages | : 28 |
Release | : 1979 |
Genre | : Sitka spruce |
ISBN | : |
Author | : Verner Warren Clapp |
Publisher | : Forgotten Books |
Total Pages | : 34 |
Release | : 2017-10-28 |
Genre | : |
ISBN | : 9780266848332 |
Excerpt from Alaska's Spruce The scientific name of white spruce found in Alaska is Picea glauca Var. Albertiana. This western variety is closely related to the eastern white and red spruce, the Englemann spruce of the Rockies, and the coastal Sitka spruce. The tree is medium in size. In high quality stands, average trees are 30 to 60 centimeters in diameter and 15 to 25 meters in height The largest known white spruce is meters in diameter. 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.
Author | : Willem W. S. Van Hees |
Publisher | : |
Total Pages | : 24 |
Release | : 1992 |
Genre | : Spruce bark beetles |
ISBN | : |
Author | : L. R. Roche |
Publisher | : |
Total Pages | : 24 |
Release | : 1975 |
Genre | : Sitka spruce |
ISBN | : |
Author | : John C. Zasada |
Publisher | : |
Total Pages | : 46 |
Release | : 1969 |
Genre | : Forest regeneration |
ISBN | : |
Author | : John C. Zasada |
Publisher | : |
Total Pages | : 20 |
Release | : 1972 |
Genre | : Forest regeneration |
ISBN | : |
Gives basic requirements for natural regeneration of white spruce. Also methods for creating conditions to meet these requirements. Based on research on western white spruce forests of Canada.
Author | : Willem W. S. Van Hees |
Publisher | : |
Total Pages | : 24 |
Release | : 2005 |
Genre | : Sitka spruce |
ISBN | : |
During the past 30 years, spruce forests of Alaskas Kenai Peninsula have undergone dramatic changes resulting from widespread spruce bark beetle(Dendroctonus rufipennis (Kirby)) infestation. In 1987 and again in 2000, the Pacific Northwest Research Stations Forest Inventory and Analysis Program conducted initial and remeasurement inventories to assess broad-scale impacts of this infestation. Changes in regeneration of Sitka spruce(Picea sitchensis (Bong.) Carr.) and white spruce (Picea glauca (Moench) Voss) are examined by using data collected on 130 plots. Regeneration of Sitka and white spruce in terms of mean number of seedlings per plot is not significantly different from the 1987 findings. The number of plots where seedling stocking remained at previous levels or increased, slightly exceeded the number of locations where seedling stocking declined. Almost half the plots (49 percent) had decreased numbers of seedlings, and almost 72 percent of the plots fell in the less-than-fully-stocked category in both inventories. Also, the distribution of the seedlings over the plot was not uniform. No plots had seedlings on all plot cluster sample points in either inventory.