Author: Paul E. Aho Publisher: Forgotten Books ISBN: 9780332764306 Category : Business & Economics Languages : en Pages : 28
Book Description
Excerpt from Decay of Engelmann Spruce in the Blue Mountains of Oregon and Washington A total of 292 Engelmann spruce were dissected and examined for decay and other defects in seven areas in the Blue Mountains of southeastern Washington and northeastern Oregon. Decay on a cubic foot basis was 3. 3 percent for pole trees and 5. 4 percent for sawtimber. Defect loss in sawtimber spruce amounted to nearly 12 percent of the gross merchantable board-foot volume. Decay varied among study areas and could not be explained on the basis of age differences. 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: Thomas E. Hinds Publisher: ISBN: Category : Engelmann spruce Languages : en Pages : 24
Book Description
Average cull deductions for 11 cull indicators were determined from over 2,000 abnormalities on 1,027 merchantable Engelmann spruce in 21 stands throughout Colorado. On a board-foot basis, Fomes pini punk knots or sporophores caused an 81 percent deduction. Deduction for broken tops or dead tops with adjacent dead rust brooms amounted to 24 percent. Basal wounds, dead rust brooms, a dead leader, frost cracks, all forks, joined at the base to another tree, spike top, and trunk wounds were each responsible for a 10 percent deduction. Fomes pini was the most important decay fungus.
Author: William M. Ciesla Publisher: Fao ISBN: Category : Business & Economics Languages : en Pages : 144
Book Description
The objective of this paper is to provide a global review of the non-wood uses of conifers. For the purposes of this paper, conifers are defined as trees and shrubs of the botanical orders Coniferales, Taxales and Ginkgoales (Rushforth 1987). Although some services are briefly mentioned, the focus of this paper is on products which conifers provide species, which are important sources of non-wood forest products, and places where these products are harvested. With the exception of essential oils, which can be obtained from several parts of the tree, the products described are organized by the part of the tree from which they are obtained (e.g. foliage, bark and roots, resin, seeds and cones). Where possible, data on levels of production and international trade are presented. Problems associated with the sustainable management of these products and compatibility or conflicts with other land uses are also presented. Both contemporary and historical or traditional uses of non-wood products from conifers are discussed.
Author: Paul E. Aho
Author: Paul E. Aho
Author: Paul E. Aho![Decay of Engelman [sic] Spruce in Blue Mountains of Oregon and Washington PDF](https://books.google.com/books/content/images/frontcover/6BKbwgEACAAJ?fife=w80-h100)
Author: 
Author: Paul E. Aho
Author: Paul E. Aho
Author: Thomas E. Hinds
Author: Henry H. Gibson
Author: William M. Ciesla
Author: United States. Forest Service