Tarif access tables were developed for mountain hemlock [Tsuga mertensiana (Bong.) Carr.] on the Deschutes National Forest in the Central Oregon Cascade Mountains from an equation for cubic-foot volume including top and stump (CVTS). These tables provide access to the comprehensive tree-volume tarif system.
Second Edition May 1969. Reprinted January 1979. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Summarizes information on wood as an engineering material.
Presents properties of wood and wood-based products
of particular concern to the architect and engineer. Includes
discussion of designing with wood and wood-based products
along with some pertinent uses.
By researching aspects of the geology of Redwood National and State Parks (RNSP) and
serving for two summers as a seasonal interpretive ranger, I have developed a training manual designed for fellow rangers. The descriptive nature of the manual, combined with its vivid illustrations, is designed to enable rangers of...
Contract harvest operations have become the preferred approach to reducing the largest cost component of timber production through free market competition amongst logging contractors bidding or negotiating for work. The goal of this research was to investigate economic components of harvesting operations not previously studied for steep slope thinning harvests...
The purpose of this study was to investigate the level of social interaction and social comfort among five undergraduate ethnic groups: African American, American Indian, Asian American, Caucasian American, and Hispanic American. Another purpose was to explore the correlation between the level of social contact and comfort among the five...
Published June 1992. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
The author and compiler of Design Data for Field Engineers has
included in his volume short cuts in design, and miscellaneous data
and information used on general civil engineering projects from inception
to completion.
The book is intended for the engineer who may be stationed in
isolated areas and who...
This thesis develops a thematic, geology-based interpretive training manual for the interpretive staff at Yosemite National Park (YNP), California. The manual will help staff understand and convey geologic principles to park visitors who are all experiencing a dynamic landscape comprised of glacially-sculpted igneous rocks. Basic geology and the results of...
The LAndscape Management Policy Simulator (LAMPS) model, version 1.1, is a spatial simulation model developed to provide forest landscape planning simulations for the Coastal Landscape Analysis and Modeling Study (CLAMS). It is designed to help policymakers, managers, and planners think through alternative management scenarios and their potential effects on the...
The study was conducted on the Ochoco National Forest in
central Oregon. Vegetation-soil relationships were evaluated for the
following objectives: 1. Develop a sound ecological foundation on
which total land management decisions may be based. 2. Evaluate
forest succession, stocking, and growth to improve management.
3. Develop accurate range condition...
This thesis presents the results from Monte Carlo calculations on classical vector spins in
face-centered-cubic (FCC) lattices. The goal of the study was to understand the effect of
interlayer coupling, dilution of magnetic atoms in the lattice, and symmetry-changing
strain.
Experimental work by T. M. Giebultowicz et al. and J....
I conducted a multi-scale evaluation of aspen – bird relationships in the northern ungulate winter range of the northern Yellowstone ecosystem during June 2001-03. Questions addressed were: (1) Does bird diversity increase with conifer presence in aspen stands? (2) Given known habitat selection cues, are migrating birds passively intercepted by...
Young Douglas-fir stands were commercially thinned to achieve vegetation- and wildlife-related objectives. Harvesting and forwarding production and costs were compared among three mechanized thinning treatments: light thin [(115 residual trees per acre (tpa)], light thin with 0.5-ac openings (92 residual tpa), and heavy thin (53 residual tpa). The sites were...
Following high-severity fire, forest succession may take alternate pathways depending on the pattern of the fire and any secondary disturbances during early stand development, with lasting consequences for ecosystem function. The objectives of this research were to quantify: (1) early postfire regeneration as influenced by the spatial pattern of a...
This publication is for pesticide applicators, including those preparing to take certification exams and those who already are certified pesticide applicators, operators, dealers, or consultants.
Predicting the effects of climate change on ecological communities requires an understanding of how environmental factors influence both physiological processes and species interactions. Specifically, the net impact of temperature on community structure depends on the relative response of physiological energetic costs (metabolism) and energetic gains (ingestion of resources) that mediate...
The objective of this research was to improve our understanding of how
changes in the environment affect ecological processes. Change detection is often
confounded by the large variation found in ecological data due to the difficulty of
finding replicates in nature. Intertidal communities were chosen for studies of biophysical
interactions...
This essay provides a snapshot of sustainability and acceptability of wave energy and eight other electricity-generating energy sources in Oregon. Since “sustainability” is an important point of view in decision-making, the paper is centered around the concept. Although there is no consensus on the definition of sustainability in the academic...
The objectives of this guide are to provide information to allow users to be able to identify potential natural vegetation types in wetlands (and transitional riparian areas) and to provide information pertinent to the use and management of these
areas. An attempt has been made to describe the successional status...
Oregon has the most extensive land-use planning program of any state in this country. Every acre of privately owned land in this state is zoned. Every acre is subject to a comprehensive plan. Planning affects the cost of your home, the distance you drive to work or shop, your property...
This plant association guide has been developed as an aid for Forest Service resource managers to identify long term stable plant associations found on the Crooked River National Grassland. The guide describes in detail good, fair, and poor range condition on lands seeded to either crested wheatgrass or beardless wheatgrass...
The fifth volume of a five-volume series is presented. The contents are arranged under the following chapter headings: (1) Purification, (2) Effects on Materials, (3) Heaters and Coolers, (4) Radiators, Condensers, and Boilers, and (5) Applications.
The second volume of a five-volume series is presented. The contents are arranged under the following chapter headings: (1) Fluid Mechanics of Liquid Metals, (2) Liquid-Metal Heat Transfer, (3) Intermediate Heat Exchangers, and (4) Steam Generators.
The global cryosphere, defined as the world’s ice and snow covered regions, is a crucial water source for society and ecosystem functions, as well as an important regulator of the earth’s energy budget. Melt from glaciers and seasonal snow cover provides water for more than a sixth of the world’s...
Streams across the world are highly fragmented due to the presence of in-stream barriers (e.g., dams and stream-road crossings), many of which restrict or block fish passage. Retrofitting or replacing these structures is a high priority for restoring habitat connectivity for native fishes and other aquatic organisms in the Pacific...
Nutritional ecology of unhunted and sympatric populations of
Roosevelt elk, Cervus elaphus roosevelti, and Columbian black-tailed
deer, Odocoileus hemionus columbianus, was investigated in old-growth
forests of the Hoh Valley in Olympic National Park, Washington, from
September 1979 to November 1981. Seasonal diets of both cervids
generally were comprised of common...
Recordkeeping is an important part of managing any
forest property. Although it’s often seen as a thankless
task, recordkeeping’s rewards can be counted
in better decisions—and time and money saved. Without question,
good records will help you manage your woodland better by providing:
• A historical record of management activities...
This publication is a guide for protecting, conserving, selecting, maintaining, removing, and replacing trees on development sites in the Pacific Northwest. The guidebook is designed to assist people who work with trees during the development and construction phases of both new and existing projects to keep healthy trees a part...
The Very High Temperature Reactor (VHTR) has two possible core configurations, a hexagonal prismatic and a pebble bed. It is essential that an experimental facility be built for the validation of computer codes for the safe operation of the VHTR. The scaling of the prismatic core configuration has been analyzed...
Published June 1986. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Climate exerts considerable control on wildfire regimes, and climate and wildfire are both major drivers of forest growth and succession in interior Northwest forests. Estimating potential response of these landscapes to anticipated changes in climate helps researchers and land managers understand and mitigate impacts of climate change on important ecological...
Canopy structure has a significant impact on the canopy hydrology of
Douglas-fir forests in the Pacific Northwest (PNW). Whole canopy rainfall
interception was measured for young Douglas-fir forest and compared to an
old-growth Douglas-fir forest. The old-growth forest had significantly greater
canopy water storage capacity (5) and direct throughfall fraction...
Providing food, timber, energy, housing, and other goods and services, while maintaining ecosystem functions and biodiversity that underpin their sustainable supply, is one of the great challenges of our time. Understanding the drivers of land-use change and how policies can alter land-use change will be critical to meeting this challenge....
Though the mixed-evergreen forests of the Klamath Siskiyous have a long history of large, mixed-severity fires, most research in this region has concentrated on the impacts of high-severity fire. Knowledge of the ecological effects of low- and moderate-severity areas within mixed-severity fires is important because such areas may account for...
The Lower Alsea River Watershed Analysis contains information which characterizes the processes and trends for resources of concern, and provides a context relating the function of this lower portion of the watershed to the Alsea River Basin as a whole. Critical problem areas both inside and outside federal lands are...
Renewable energy resources, such as wind, solar, and wave, have a number of advantages compared to traditional fossil fuels. Numerous studies attest to the physical potential for wave energy development in Oregon. In transitioning from conventional fossil fuel to alternative energy provision, citizen understanding of the global energy problems and...
Disturbance and microclimate interact to play a central role influencing the composition and structure of plant communities. In this thesis, I examined plant community composition and structure twenty years after high severity wildfires with and without post-fire management (salvage logging, fuel treatment, tree planting, and shrub release) under contrasting microclimatic...
In the Pacific Northwest (PNW), concern about the impacts of climate and land cover change on water resources, flood-generating processes, and ecosystem dynamics emphasize the need for a mechanistic understanding of the interactions between forest canopies and hydrological processes. A detailed measurement and modeling program during the 1999 and 2000...
The distribution of American martens (Martes americana) within Sagehen Creek Experimental Forest (SCEF), Tahoe National Forest, California has been periodically documented from 1980–1993. This area has been the location of nine marten surveys, each involving a systematic detection/nondetection survey on the same grid. These data are an unprecedented time series...
Historically the U.S. Forest Service has used uncorrected
aerial photographs to delineate proposed and past management
activities on the land base it manages. Transferring a boundary
from an image not planimetrically correct to a planimetrically
corrected image introduces errors. Positional accuracy of
boundaries affects the number of acres the Forest...
This study explores the use of predictive mapping techniques in developing Landtype Association (LTA) maps for use in natural resource management. These maps are produced for the USDA Forest Service on a regional basis at a 1:100,000 scale. The goal of this study is to develop and test a method...
The Teakettle Ecosystem Experiment in the southern Sierra Nevada is using thinning and prescribed
fire to recreate historical stand conditions. As part of Teakettle we assessed pretreatment diversity and density
of the soil arthropod community in 1998 and 2000. We determined the density and diversity of soil microarthropods
among treatment...
Lodgepole pine (Pinus contorta) forests are widely distributed throughout western North America. However, the lodgepole pine forests of central Oregon are ecologically unique to the region, with a mixed severity fire regime, low cone serotiny, and their occasional presence as a climax species. Most of the research conducted regarding the...
Forest harvest can have significant impacts on forest ecosystems that may influence the capacity of soils to sequester carbon (C). The microbial community controls decomposition, which is a critical process in partitioning litter- and root-C between CO₂ and storage in semi-permanent soil-C pools. The objectives of this study were to...
Beetle diversity and habitat associations of five
prevalent riparian plant communities were examined along
the lower reaches of Big Beaver Creek Research Natural
Area, North Cascades National Park, Washington. These
communities were defined by dominant tree species, and
included Alder Swamps, Cedar-Hemlock Forests, Douglas-fir
Forests, Gravel Bars, and Willow-Sedge Swamps....
Disturbance, whether natural or of human origin, modifies to varying degrees
many ecosystem attributes. Fire is a natural process in the montane forests of southern
Oregon but for much of the 20th century fire was viewed as an apocalypse and thus
fervently suppressed. Effective natural resource management requires an
understanding...
This dissertation describes patterns in epiphytic macrolichen community composition, diversity, and biomass across various stand types in the Blue River watershed of western Oregon. It first examines the relative importance of ecological factors such as stand age, remnant tree retention, and topography to lichen communities in the landscape. It then...
Tree biomass is typically estimated using statistical models. This review highlights five limitations of most tree biomass models, which include the following: (1) biomass data are costly to collect and alternative sampling methods are used; (2) belowground data and models are generally lacking; (3) models are often developed from small...
The United States (US) Department of Energy (DOE) has identified the pebble-bed reactor as a high priority for US research with the end goal of licensing a pebble-bed reactor (PBR) for operation in the United States. Before this can be accomplished significant research must be done regarding the safety of...
This document contains a biological opinion (Opinion) that was prepared by National Marine
Fisheries Service (NMFS) in accordance with section 7(b) of the Endangered Species Act of
1973, as amended (16 U.S.C. 1531, et seq.), and implementing regulations at 50 CFR 402.1 It
also contains essential fish habitat (EFH) conservation...
Full Text:
Action Agency: U.S. Army Corps of Engineers
Consultation
Conducted By: National Marine Fisheries
In the field of forest planning, assumptions regarding the appropriate modeling of management behavior, translated through management prescriptions, minimum harvest ages, green-up periods, and other variables are needed if a stand-level optimization process is not used to guide the selection of stand management regimes Forest planners thus generally have a...
This handbook is is a comprehensive guide to building and maintaining cost-effective, environmentally acceptable logging roads. It is aimed specifically at nonindustrial private woodland owners in western Oregon and Washington, but it draws on basic forest road engineering principles and practices applicable in other forestry settings. The text is written,...