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Creator:: Hermann, Richard K. and Oregon State University. Forest Research Laboratory
Abstract:: Planting techniques, size and age of seedlings, and protection against animals were investigated for their influence on survival of ponderosa pine at two sites in southern Oregon. Caging and mulching with paper were the most effective measures for reducing mortality. Preliminary trials prior to large-scale planting were recommended for determining...
Resource Type:: Technical Report
Full Text:: b X55' 7i 73 'Survival of Planted Ponderosa Pine in

Creator:: Newton, Michael, 1932-, White, Diane E., and Oregon State University. Forest Research Laboratory
Abstract:: At three sites in southwest Oregon, uniform stands of whiteleaf manzanita were created for future studies on the effects of manzanita competition on Douglas-fir and ponderosa pine plantations. The sites were marked according to grids and nearby 2-year-old seedlings were lifted and transplanted to fill in gaps in the natural...
Resource Type:: Technical Report
Full Text:: studies on the effects of manzanita competition on Douglas-fir and ponderosa pine plantations. The sites

Creator:: Ross, Darrell W. and Oregon State University. Forest Research Laboratory
Abstract:: Regression equations for estimating the aboveground biomass (ovendry weight) of individual plants of 10 shrub and 2 pine species were developed from data collected in south central Oregon. All include a single independent variable and were generated from logarithmically transformed data. Total aboveground biomass of each shrub species is predicted...
Resource Type:: Technical Report
Full Text:: , diameter squared times height, or total height. Equations for ponderosa pine were found to be site-specific

Creator:: Wagg, John William Bruce, Hermann, Richard K., and Oregon State University. Forest Research Laboratory
Resource Type:: Technical Report
Full Text:: regeneration in the eastern portion of the ponderosa pine region of cen- tral Oregon were largely unsuccessful

Creator:: Tesch, Steven D. and Oregon State University. Forest Research Laboratory
Resource Type:: Technical Report
Full Text:: shelterwood overstory. From a preharvest population of planted and natural Douglas-fir and ponderosa pine

Creator:: Hann, David W., Scrivani, John A., Oregon State University. Forest Research Laboratory, and Southwest Oregon Forestry Intensified Research Program
Resource Type:: Technical Report
Full Text:: PONDEROSA PINE IN SOUTHWEST OREGON David W. Hann John A. Scrivani D 144. 07 X149 r1o. 59 CoP. .. i (t

Creator:: Black, Hugh C., 1941-, Dimock, Edward J., Evans, James, 1930-, Rochelle, James Arthur, 1942-, and Oregon State University. Forest Research Laboratory
Abstract:: Mammal and bird damage recorded on Douglas-fir and ponderosa pine plots-randomly established in Oregon and Washington during 1963-64, then observed for 5 to 10 years-was evaluated for impact on survival and growth. In all, 194 plots were installed, and 10 of the 110 seedlings on each plot were caged to...
Resource Type:: Technical Report
Full Text:: rodents 25 ponderosa pine 25 douglas-fir 26 browsing and trampling by domestic stock 28 browsing by deer

Creator:: Brodie, J. Douglas (John Douglas), 1938-, Black, Hugh C., 1941-, Dimock, Edward J., Evans, James, 1930-, Kao, Chiang, Rochelle, James Arthur, 1942-, and Oregon State University. Forest Research Laboratory
Abstract:: Regression models of height growth and survival were fitted to aggregate data for trees, protected and not protected from animal damage, that had been surveyed on Douglas-fir and ponderosa pine plantations in Oregon and Washington. Animal damage significantly affected both height and survival. Dynamic programming analysis-using both soil expectation (Se)...
Resource Type:: Technical Report
Full Text:: (Pseudotsuga menziesii) and ponderosa pine (Pinus ponderosa) plantations in Oregon and Washington. These study

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:: survival for planted Douglas-fir (84 percent) and ponderosa pine (56 percent) were significantly greater

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