Index Catalog // ScholarsArchive@OSU

Selective light marking in ponderosa pine of Eastern Oregon

Creator:: Edmiston, Floyd H.
Resource Type:: Undergraduate Thesis
Full Text:: Selective light marking in ponderosa pine of Eastern Oregon

Classification strategies for unbalanced binary maps : finding Ponderosa pine in the Willamette Valley

Creator:: Riddell, Audrey P.
Abstract:: Forest species classifications are becoming increasingly automated as advances are made in machine learning. The algorithms used to identify tree species range from simple decision trees to intricate neural networks, and often excel in accurately delineating tree species. However, complex algorithms can have high input costs, including the cost of...
Resource Type:: Masters Thesis
Full Text:: plantations in the Willamette Valley in western Oregon. Willamette Valley ponderosa pine (WVPP) is a native

Silviculture report : F-321

Creator:: Easton, Milton
Resource Type:: Undergraduate Thesis
Full Text:: SILVICULTURE REPORT F-S2L SPRING TERM 1947 Milton H. Easton Oregon State Conservation Act Survey During

Long-term effects of prescribed fire on nitrogen availability in ponderosa pine stands in central Oregon

Creator:: Monleon-Moscardo, Vicente J.
Abstract:: The effects of prescribed burning on the rates of recent litter decomposition, nitrogen and phosphorus release from litter, soil total and inorganic nitrogen pools, and net nitrogen mineralization were determined in ponderosa pine sites that had been burned 0.3, 5 or 12 years earlier. Prescribed burning decreased litter decomposition rates...
Resource Type:: Masters Thesis

Response of ponderosa pine forests in central Oregon to prescribed underburning

Creator:: Landsberg, Johanna Dobrot
Abstract:: Tree growth and soil nutrient responses to prescribed underburning were determined for a period of up to 12 years at four sites in northcentral and central Oregon ponderosa pine stands (Pinus ponderosa Dougl. ex Laws). Differences reported are significant at a = 0.10. During the first 4-growing-season-measurement period after underburning,...
Resource Type:: Dissertation

Estimating aboveground biomass of shrubs and young ponderosa and lodgepole pines in southcentral Oregon

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:: pine species were devel- oped from data collected in southcentral Oregon. All include a single

Soil-site productivity relationships of central Oregon ponderosa pine

Creator:: Wilson, Duncan Steil, 1969-
Abstract:: The relationship between annual foliage production and nitrogen and water stress was examined in 14 naturally regenerated, mid-rotation ponderosa pine stands in central Oregon. Current-year and older foliage masses, and foliage nitrogen contents and concentration were estimated from 132 destructively sampled trees. Litterfall mass and nitrogen retranslocation rates from senescing...
Resource Type:: Dissertation

Understory competition for resources in Pinus ponderosa forests of northeastern Oregon

Creator:: Riegel, Gregg M.
Abstract:: The objective of this research was to determine which environmental resources, light, water, and nutrients, control understory plant production and composition in a Pinus ponderosa forest in northeastern Oregon. A split-plot experimental design, with three blocks, four treatments, and 44 plots, was established in the summer of 1985. Twenty plots...
Resource Type:: Dissertation
Full Text:: ponderosa pine- bunchgrass range at the Starkey Experimental Forest in northeastern Oregon. Their results

Soil compaction in central Oregon volcanic ash soils and the subsequent effects on residual ponderosa pine growth

Creator:: Parker, Robert T.
Abstract:: Although previous research in central Oregon has shown soil compaction can lead to a decline in site productivity, the subject is not understood well enough to predict the growth changes resulting from a given level of soil compaction. A study was initiated to relate the basal area, height and volume...
Resource Type:: Masters Thesis
Full Text:: Central Oregon Volcanic Ash Soils and the Subsequent Effects on Residual Ponderosa Pine Growth

ScholarsArchive@OSU

Selective light marking in ponderosa pine of Eastern Oregon

Classification strategies for unbalanced binary maps : finding Ponderosa pine in the Willamette Valley

Silviculture report : F-321

Long-term effects of prescribed fire on nitrogen availability in ponderosa pine stands in central Oregon

Response of ponderosa pine forests in central Oregon to prescribed underburning

Estimating aboveground biomass of shrubs and young ponderosa and lodgepole pines in southcentral Oregon

Soil-site productivity relationships of central Oregon ponderosa pine

Understory competition for resources in Pinus ponderosa forests of northeastern Oregon

Soil compaction in central Oregon volcanic ash soils and the subsequent effects on residual ponderosa pine growth

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