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Despite considerable investigation of stream systems, the influence of fish predation on macroinvertebrate assemblages is still poorly understood and remains a controversial subject. We conducted a field experiment in an intermittent reach of Alum Creek in the Ouachita Mountains, Arkansas, to…
Author(s): Lance R. Williams, Christopher M. Taylor, Melvin L. Warren
Source: Transactions of the American Fisheries Society. 132: 120-130.
Year: 2003
Buffers along streams cover a tremendous proportion of the land base in the forested systems of the western Pacific Northwest. These buffers were designated primarily to conserve and restore habitat for salmon and trout, but conservation of habitat for a number of other organisms also has been…
Author(s): Sally Duncan
Keywords: Stream buffers, amphibians, riparian management, Olympic Peninsula
Source: Science Findings. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. May (53): 1-5
Year: 2003
Genetic resource management has historically called for altering the genetic structure of plant populations through selection for traits of interest such as rapid growth. Although this is still a principal component of tree breeding programs in the Pacific Northwest, managing genetic resources now…
Author(s): Sally Duncan
Source: Science Findings. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. April (52): 1-5
Year: 2003
Forest management throughout the world is producing simplified forests. There is growing concern that these forests maintain neither complete vertebrate communities nor conditions favorable to maintenance of genetic diversity of those vertebrate populations that do find habitat in simply structured…
Author(s): Sally Duncan
Keywords: Genetic diversity, flying squirrels
Source: Science Findings. Portland, OR: Department of Agriculture, Forest Service, Pacific Northwest Research Station. February (51): 1-5
Year: 2003
Despite the importance of improving lumber processing early in manufacturing, scanning of unplaned, green hardwood lumber has received relatively little attention in the research community. This has been due in part to the difficulty of clearly imaging fresh-cut boards whose fibrous surfaces mask…
Author(s): Sang-Mook Lee, A. Lynn Abbott, Daniel L. Schmoldt, Philip A. Araman
Source: Proceedings, 5th International Conference on Image Processing and Scanning of Wood. 25-34.
Year: 2003
This paper concerns the nondestructive evaluation of hardwood logs through the analysis of computed tomography (CT) images. Several studies have shown that the commercial value of resulting boards can be increased substantially if log sawing strategies are chosen using prior knowledge of internal…
Author(s): Erol Sarigul, A. Lynn Abbott, Daniel L. Schmoldt
Source: Proceedings, 5th International Conference on Image Processing and Scanning of Wood. 177-186.
Year: 2003
In 1999, industrial roundwood output from Louisiana's forests totaled 802 million cubic feet, 28 percent more than in 1996. Mill byproducts generated from primary manufacturers increased 50 percent to 285 million cubic feet. Almost all plant residues were used primarily for fuel and fiber products…
Author(s): James W. Bentley, Michael Howell, Tony G. Johnson
Keywords: pulpwood, residues, roundwood, saw logs, veneer logs, wood movement
Source: Resour. Bull. SRS–81. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. 47 p.
Year: 2003
In 1999, roundwood output from Oklahoma's forests totaled 120 million cubic feet. Mill byproducts generated from primary manufacturers totaled 51 million cubic feet. Almost all plant residue was used primarily for fuel and fiber products. Pulpwood were the leading roundwood product at 54 million…
Author(s): Michael Howell, Tony G. Johnson
Keywords: Pulpwood, residues, roundwood, saw logs, veneer logs, wood movement
Source: Resour. Bull. SRS–82. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. 36 p.
Year: 2003
Five forest harvest methods (single-tree selection, group selection, two-age cut, shelterwood cut, and clearcut) are being demonstrated on 5-acre tracts near the Adirondack Park Agency?s Visitor Interpretation Center (VIC) at Paul Smith?s, New York. The tracts are part of the agency?s Forest…
Author(s): Gary L. Wade, Jonathan A. Myers, Cecilia R. Martin, Kathie Detmar, William, III Mator, Mark J. Twery, Mike Rechlin
Source: Res. Note NE-380. Newtown Squre, PA: U.S. Department of Agriculture, Forest Service, Northeastern Research Station. 6 p.
Year: 2003
Bulk density and soil resistance to penetration were measured in ten, 3- to 11-ha operational units in overstocked, mixed-conifer stands in northeast Washington. Resistance was measured with a recording penetrometer to the 33-cm depth (13 in) at 10 stations on each of 8 to 17, 30.5-m-long, randomly…
Author(s): Johanna D. Landsberg, Richard E. Miller, Harry W. Anderson, Jeffrey S. Tepp
Keywords: Soil strength, penetration resistance, cone penetrometer, bulk density, commercial thinning, northeast Washington, ashy soils, yarding equipment, soil disturbance
Source: Res. Pap. PNW-RP-551. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 35 p
Year: 2003
https://www.fs.usda.gov/treesearch/search/query?f%5B0%5D=publication_year%3A2003