Forests of Western Oregon
Author | : Sally J. Campbell |
Publisher | : |
Total Pages | : 38 |
Release | : 2002 |
Genre | : Forests and forestry |
ISBN | : |
Download Oregons Forests full books in PDF, epub, and Kindle. Read online free Oregons Forests ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Author | : Sally J. Campbell |
Publisher | : |
Total Pages | : 38 |
Release | : 2002 |
Genre | : Forests and forestry |
ISBN | : |
Author | : Andy Kerr |
Publisher | : Timber Press (OR) |
Total Pages | : 260 |
Release | : 2004 |
Genre | : Nature |
ISBN | : |
With the aid of 40 maps based on new research and stunning color photographs, a noted conservation advocate describes the small fraction of wild forests that remain intact.
Author | : Gail Wells |
Publisher | : Oregon State University Press |
Total Pages | : 230 |
Release | : 2001 |
Genre | : History |
ISBN | : |
A fascinating look at the natural and human-caused influences that have shaped and continue to shape Oregon's forests, using the Lewis and Clark Expedition of two hundred years ago as a backdrop.
Author | : Sally J. Campbell |
Publisher | : |
Total Pages | : 38 |
Release | : 2002 |
Genre | : Forests and forestry |
ISBN | : |
Author | : John C. Tappeiner |
Publisher | : |
Total Pages | : 452 |
Release | : 2007 |
Genre | : Nature |
ISBN | : |
"An essential reference for forest managers, policy makers, forest scientists, and students, this authoritative volume provides a basis for silviculture practices and contemporary management of western forests."--BOOK JACKET.
Author | : Oregon State Board of Forestry |
Publisher | : |
Total Pages | : 74 |
Release | : 1943 |
Genre | : Forests and forestry |
ISBN | : |
Author | : Jack Ward Thomas |
Publisher | : |
Total Pages | : 528 |
Release | : 1979 |
Genre | : Forest animals |
ISBN | : |
That is what this book is about. It is a framework for planning, in which habitat is the key to managing wildlife and making forest managers accountable for their actions. This book is based on the collective knowledge of one group of resource professionals and their understanding about how wildlife relate to forest habitats. And it provides a longoverdue system for considering the impacts of changes in forest structure on all resident wildlife.
Author | : Sally J. Campbell |
Publisher | : |
Total Pages | : 44 |
Release | : 2003 |
Genre | : Forest surveys |
ISBN | : |
This publication provides highlights of forest inventories and surveys from 1993 to 2001. About 35 percent of eastern Oregon is forested. The amount of forest land in eastern Oregon has increased by about 650,000 acres from the 1930s, with increases in juniper forest land accounting for most of the change. Thirty-one tree species were tallied in forest inventories during the 1990s, with ponderosa pine the predominant species in all ecological provinces in eastern Oregon. The Forest Service, Bureau of Land Management, and other federal agencies manage about 71 percent of eastern Oregon forests; about 27 percent is privately owned; and the remaining 2 percent is managed by the Oregon Department of Forestry and other nonfederal public agencies. The volume of wood in eastern Oregon forests is about 25.7 billion cubic feet, of which about 312 million cubic feet per year were harvested between 1987 and 1999. In the same time period, annual mortality and removals exceeded annual growth for all ownerships. Down wood is an important forest component and shows increases with forest age. Insect defoliators, bark beetles, root diseases, and dwarf mistletoes are present on over 72 percent of forest land in eastern Oregon. Year-to-year defoliation or mortality trends can be detected with aerial surveys. Introduced plant species are present on over 50 percent of private and other public forest land. Diversity of lichens (indicators of air pollution, climate, and forest age and structure) is greatest in the Blue Mountains Province and lowest in the Intermountain Province. No ozone injury has been detected on sensitive forest trees and plant species in eastern Oregon.