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Creator:: White, Diane E., Newton, Michael, 1932-, and Oregon State University. Forest Research Laboratory
Resource Type:: Technical Report
Full Text:: of the two herbicides; that is, the effect of the hexa- ment -- by estimating the percentages of the

Creator:: Tesch, Steven D. and Oregon State University. Forest Research Laboratory
Resource Type:: Technical Report
Full Text:: . Furthermore, the layout of skyline corridors can have an effect on the amount of site disturbance and seedling

Creator:: Hobbs, Stephen D. and Oregon State University. Forest Research Laboratory
Abstract:: One-year-old container-grown Douglas-fir [Pseudotsuga menziesii (Mirb.) Franco] seedlings were outplanted on north, east, south, and west aspects on steep, skeletal Xerochrepts in southwest Oregon. After 2 years, survival rates were highest on north and south aspects, but biomass production (dry weight) was greatest on the west aspect. Shadecards, used to...
Resource Type:: Technical Report
Full Text:: , and limited moisture supply combine to form the primary cause of seedling mortality, especially on

Creator:: Sneva, Forrest, Britton, Carlton M., Mayland, H. F., Buckhouse, John, Evans, Raymond A., Young, James A., and Vavra, Martin
Abstract:: Field and laboratory studies were conducted on volcanic ash from Yakima, Moses Lake, Spokane, Washington, and Moscow, Idaho, three weeks after the May 18, 1980, eruption of Mt. St. Helens in southwestern Washington. These studies examined 1) the chemical, physical, and water retentivity properties of the ash, 2) the effect...
Resource Type:: Technical Report
Full Text:: effects of the ash over the long term, both on individual native plants and the native and seeded plant

Creator:: Helgerson, O. T., Wearstler, Kenneth A., Bruckner, Werner K., and Oregon State University. Forest Research Laboratory
Abstract:: The effects of naturally shaded microsites on survival and height growth of natural and planted seedlings were evaluated after an initial shelterwood harvest in the eastern Siskiyou Mountains of southwestern Oregon. After 2 years, the probabilities of survival for planted Douglas-fir (84 percent) and ponderosa pine (56 percent) were significantly...
Resource Type:: Technical Report
Full Text:: shading had no effect on the survival of planted conifer seedlings (Strothman 1972). In the spring of 1979

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