Gedney, Donald R.; Azuma, David L.; Bolsinger, Charles L.; McKay, Neil. 1999.
The Forest Service of the U.S. Department of Agriculture is dedicated to the principle of multiple use management of the Nation's forest resources for sustained yields of wood, water, forage, wildlife, and recreation. Through forestry research, cooperation with the States and private forest owners, and management of the National Forests and National Grasslands, it strives-as directed by Congress-to provide increasingly greater service to a growing Nation.The U.S. Department of Agriculture (USDA) prohibits discrimination in all its programs and activities on the basis of race, color, national origin, gender, religion, age, disability, political beliefs, sexual orientation, or marital or family status. (Not all prohibited bases apply to all programs.) Persons with disabilities who require alternative means for communication of program information (Braille, large print, audiotape, etc.) should contact USDA's TARGET Center at (202) 720-2600 (voice and TDD).To file a complaint of discrimination, write USDA, Director, Office of Civil Rights, Room 326-W, Whitten Building, 14th and Independence Avenue, SW, Washington, DC 20250-9410 or call (202) 720-5964 (voice and TDD). USDA is an equal opportunity provider and employer.USDA is committed to making its information materials accessible to all USDA customers and employees. Authors Executive SummaryThis analysis summarized prefire field inventory data (collected 1993-97) in relation to postfire mapped fire-severity classes for the portion of the Siskiyou National These inventory data represent a statistically valid field sample across the landscape and, in combination with remeasured plots, will provide a comprehensive look at the effects of fire on a large scale.• Almost 70 percent of the sampled area was classified as softwood forest types, 26 percent as hardwood, and slightly more than 4 percent as nonstocked.• Tanoak forest types dominated the hardwood types, occurring on approximately 17 percent of the sample area.• Douglas-fir is the predominant type occurring on over 44 percent of the sample area and accounting for 71 percent of the board-foot volume across all forest types and administrative statuses.• Almost 45 percent of the sampled area was classified as low productivity (site class VI or VII).• Ninety-two percent of the nonreserved softwood area and 63 percent of the nonreserved hardwood area are stands of large trees.• Sixty-three percent of the combined sample of nonreserved and wilderness land was classified as low/very low burn severity.• Within each broad forest type, 55 percent of the softwood area and 82 percent of the hardwood area was classified as low/very low burn severity.• Douglas-fir forest types burned less severely than most other softwood forest types, with less than 35 percent classified as high/moderate burn severity.• Less than 6 percent of the tanoak area was classified as high/moderate burn severity.• For hardwoods and softwoods combined, 76 percent of the stands of very large trees (trees >20 inches in diameter at breast height) was clas...
The occurrence of laminated root rot caused by Phellinus weirii on non-Federal timberlands in 1976 in northwest Oregon is discussed and its locations are shown.
LIBRARYThis book is due on the last date stamped below, or on the date to which renewed. Renewed books are subject to immediate recall. This report summarizes a 1985 timber resource inventory of the non-Federal forest land in the five counties (Coos, Curry, Douglas, Jackson, and Josephine) in southwest Oregon. Detailed tables of forest area, timber volume, growth, mortality, and harvest are presented.KEYWORDS: Forest surveys, statistics (forest), timber resources, resources (forest), Oregon (southwest). SUMMARYThe southwest Oregon resource area totals 8,185,024 acres, of which non-Federal forest land totals 2,896,000 acres. An estimated 2,583,000 acres are classified as non-Federal timberland. The non-Federal timberland has an estimated 6.7 billion cubic feet of standing timber, and 64 percent of this volume is owned by forest industry. Table 3--Area of non-Federal stockable timberland by site class and owner, southwest Oregon, January 1, 1986 Table 4--Area of non-Federal timberland by stand-size class and owner, southwest Oregon, January 1, 1986 PREFACETable 5-Area of non-Federal timberland by forest type and owner, southwest Oregon, January 1, 1986 Table 6--Area of non-Federal reserved timberland and other forest land by land class, forest type, and owner, southwest Oregon, January 1, 1986 Table 7-Volume of timber on non-Federal timberland by class of timber and by softwoods and hardwoods, southwest Oregon, January 1, 1986Table 8-Volume of growing stock and sawtimber on non-Federal timberland by owner and by softwoods and hardwoods, southwest Oregon, January 1, 1986 Table 9-Volume of growing stock and sawtimber on non-Federal timberland by owner and county, southwest Oregon, January 1, 1986Table 10--Volume of growing stock on non-Federal timberland by species and owner, southwest Oregon, January 1, 1986Table 11-Volume of sawtimber on non-Federal timberland by species and owner, southwest Oregon, January 1, 1986 Table 12--Volume of growing stock on non-Federal timberland by species and diameter class, southwest Oregon, January 1, 1986 1947-49, 1962, and 1973-74. Field data for all non-Federal forest lands were collected in the summer of 1985 by the Forest Inventory and Analysis Work Unit (FIA) of the Pacific Northwest Research Station. Data for the Federal timber resources-National Forest (U.S. Department of Agriculture, Forest Service) and Bureau of Land Management (U.S. Department of the Interior)--wil1 be presented, with the non-Federal data, in a later report.Scientific names of trees (Little 1979) are listed on page 8 of this report. See "Terminology" for definitions of terms used in this report. INVENTORY PROCEDURESFor all non-Federal lands, the sampling design was double sampling for stratification (Cochran 1963). Owner group, major land classes (timberland, other forest, nonforest), and forest condition classes (stage of development, major type, broad stocking class) were identified on 8,240 photo points. This photo sample was subsampled with a grid of 511 field plots established in 1961 -62 and...
This report summarizes and interprets the results of a timber resource inventory of western Oregon made between 1973 and 1976. Detailed tables give land and forest area, timber volume, growth, and mortality for western Oregon and for southwest Oregon, west-central Oregon, and northwest Oregon.
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