Forests of eastern Oregon : an overview / Sally Campbell, Dave Azuma, Dale Weyermann.

Format:

Book

Government document

Author/Creator:

Campbell, Sally J.

Contributor:

Azuma, David L.

Weyermann, Dale

Pacific Northwest Research Station (Portland, Or.)

Series:

General technical report PNW ; 578.

General technical report PNW ; 578

Language:

English

Subjects (All):

Forests and forestry--Oregon, Eastern.

Forests and forestry.

Eastern Oregon.

Genre:

Government publications

Physical Description:

1 online resource (31 pages) : color illustrations, color maps

Place of Publication:

Portland, OR : U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 2003.

Summary:

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.

Notes:

Title from title screen (viewed May 29, 2003).

Electronic reproduction. [Place of publication not identified] : HathiTrust Digital Library, 2010.

Includes bibliographical references.

Other Format:

Campbell, Sally J. Forests of eastern Oregon.

OCLC:

52356972

Access Restriction:

Use copy Restrictions unspecified