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    Author(s): Don Minore; Joseph N. Graham; Edward W. Murray
    Date: 1984
    Source: Res. Note PNW-RN-413. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 20 p
    Publication Series: Research Note (RN)
    Station: Pacific Northwest Research Station
    PDF: View PDF  (920 KB)

    Description

    Multiple regression analyses were used to relate environmental factors to forest regeneration on clearcut and partial cut areas managed by the Bureau of Land Management in the Illinois Valley area southwest of Grants Pass, Oregon. Difficulty of regenerating clearcuttings at elevations between 3,000 and 4,900 feet (914 and 1 494 m) increased with increases in soil coarse fragments, solar radiation, and slash burning. Difficulty of regenerating clearcuttings at elevations between 1,500 and 2,900 feet (457 and 884 m) increased as solar radiation, shrub cover, grass cover, and surface rock plus gravel increased. Difficulty of regenerating partial cuts increased as moisture, slope, soil silt plus clay, and density of canopy increased.

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    Citation

    Minore, Don; Graham, Joseph N.; Murray, Edward W. 1984. Environment and forest regeneration in the Illinois Valley area of southwestern Oregon. Res. Note PNW-RN-413. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station. 20 p

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    Keywords

    regeneration (natural), regeneration (artificial), environment, southwest Oregon

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