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Direct seeding studies in the eastern Oregon ponderosa pine region

Creator:: Quintus, Richard L.
Resource Type:: Technical Report
Full Text:: IN THE EASTERN OREGON PONDEROSA PINE REGION By RICHARD L. QUINTUS OREGON STATE BOARD OF FORESTRY

Morphological characteristics of ponderosa pine and lodgepole pine regeneration nine years after stand density reduction at three sites in central Oregon

Creator:: Michel, Alexa K.
Abstract:: Without the natural occurrence of fire in ponderosa pine forests of the western US, lodgepole pine has started to dominate regeneration in many forest stands and may be gradually replacing ponderosa pine over time. This development, however, conflicts with recent efforts in this region to restore old-aged, open ponderosa pine...
Resource Type:: Masters Thesis
Full Text:: three sites in central Oregon. Ponderosa pine seems more persistent in forest understory conditions

Tree Vigor Response and Competitive Zone Density in Mature Ponderosa Pine

Creator:: Shaw, Randi C.
Abstract:: This study explored the relationship of mature ponderosa pine (Pinus ponderosa Dougl. ex Laws) tree vigor and competitive zone density following thinning and fuel reduction treatments. Competitive zone density (CZD) was defined as the total tree basal area (m²/ha) surrounding a given ponderosa pine tree within a 10m fixed radius...
Resource Type:: Masters Thesis
Full Text:: contribution to carbon storage (Franklin et al. 2013). In the dry forests of eastern Oregon, ponderosa pine is

An evaluation of understory vegetation dynamics, ecosystem resilience and state and transition ecological theory in an eastern Oregon ponderosa pine forest

Creator:: Carr, Craig A.
Abstract:: Relatively recent increases in ponderosa pine abundance have effected unprecedented changes to ecosystem structure and function. Efforts to restore ponderosa pine systems are often focused on the manipulation of tree structure and the re-introduction of a more natural fire regime. Successful restoration should also incorporate understory components but information addressing...
Resource Type:: Dissertation
Full Text:: for an eastern Oregon ponderosa pine ecosystem

Seedling response to vegetation management in northeastern Oregon

Creator:: Lindsay, Amanda A.
Abstract:: Northeastern Oregon geology and climate provides moderately productive conditions for forest management and timber production. Although site preparation and planting are commonly used silvicultural practices, little research exists on the efficacy of specific forest herbicides and responses of seedling survival and growth in this region. This research seeks to improve...
Resource Type:: Masters Thesis
Full Text:: .....................................................................................1 TWENTY-YEAR RESPONSE OF PONDEROSA PINE TO TREATMENT WITH HEXAZINONE IN NORTHEASTERN OREGON

Geographic variation in central Oregon ponderosa pine (Pinus ponderosa Laws.) : seed germination; seed, wing, and cone morphology; seed color

Creator:: Weber, John C., 1948-
Abstract:: Geographic variation was investigated among 225 locations from five geographically disjunct regions in central Oregon. Characters included: germination speed and uniformity in two test environments differing in stratification period and incubation temperature; weight, three dimensions and three 'angles' of seeds; weight and three dimensions of wings; cone length and scale...
Resource Type:: Dissertation
Full Text:: in Central Oregon Ponderosa Pine (Pinus Ponderosa Laws.): Seed Germination; Seed, Wing and Cone

Changes in spiral grain direction in ponderosa pine

Creator:: Forest Products Laboratory (U.S.) and Paul, Benson H.
Resource Type:: Technical Report
Full Text:: CHANGES IN SPIRAL GRAIN DIRECTION IN PONDEROSA PINE 1 2e eov-47

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

Reduction in growth of pole-sized Ponderosa pine related to a Pandora moth outbreak in central Oregon

Creator:: Cochran, P. H.
Abstract:: A pandora moth (Coloradia pandora Blake) outbreak began in 1991 in a ponderosa pine (Pinus ponderosa Dougl. ex. Laws) spacing study area that also included scattered sugar pine (P. lambertiana Dougl). The relation of defoliation to five tree spacings (with and without understory vegetation) was examined, and stand growth reduction...
Resource Type:: Technical Report

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

ScholarsArchive@OSU

Direct seeding studies in the eastern Oregon ponderosa pine region

Morphological characteristics of ponderosa pine and lodgepole pine regeneration nine years after stand density reduction at three sites in central Oregon

Tree Vigor Response and Competitive Zone Density in Mature Ponderosa Pine

An evaluation of understory vegetation dynamics, ecosystem resilience and state and transition ecological theory in an eastern Oregon ponderosa pine forest

Seedling response to vegetation management in northeastern Oregon

Geographic variation in central Oregon ponderosa pine (Pinus ponderosa Laws.) : seed germination; seed, wing, and cone morphology; seed color

Changes in spiral grain direction in ponderosa pine

Selective light marking in ponderosa pine of Eastern Oregon

Reduction in growth of pole-sized Ponderosa pine related to a Pandora moth outbreak in central Oregon

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

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