This prioritization is designed to provide strategic focus for tidal wetland conservation and a restoration actions undertaken in partnership with willing landowners. The study highlights locations in the Siuslaw River estuary where tidal wetland restoration or conservation action may offer the biggest ecological "bang for the buck" - this is,...
This prioritization is designed to provide strategic focus for tidal wetland conservation and restoration actions undertaken in partnership with willing landowners. The study highlights land areas in the Smith River Watershed (within the Umpqua River estuary) where tidal wetland restoration or conservation action may offer the biggest ecological “bang for...
This prioritization is designed to provide strategic focus for tidal wetland conservation and restoration actions undertaken in partnership with willing landowners. The stufy highligts land areas in the Umpqua River Estuary where tidal wetland restoration or conservation action may offer the biggest ecological "bang for the buck" - that is,...
This prioritization is designed to provide strategic focus for tidal wetland conservation and restoration actions undertaken in partnership with willing landowners. The study highlights land areas in the Nehalem River estuary where tidal wetland restoration or conservation action may offer the biggest ecological “bang for the buck” – that is,...
This project surveyed and prioritized 36 tidal and freshwater wetland sites totaling 733 ha (1811A) in the Elk and Sixes River basins of Curry County, Oregon. Sites surveyed included emergent, scrub-shrub, and forested wetlands. The goal was to prioritize these wetland sites for voluntary conservation and restoration actions by willing...
The Western Snowy Plover (Charadrius alexandrinus nivosus) breeds along the coast of the Pacific Ocean in California, Oregon, and Washington and at alkaline lakes in the interior of the western United States (Page et al. 1991). Loss of habitat, predation pressures, and disturbance have caused the decline of the coastal...
A plant community classification was developed describing the comprehensive variation of oak vegetation currently occupying the Willamette Valley Ecoregion of western Oregon. Multivariate statistical analyses were used to classify field collected floristic and habitat data. Field sampling targeted minimally managed, homogenous vegetation stands with a significant oak component occupying at...
The objectives of this study were to evaluate the performance of wood-frame shear walls under monotonic, cyclic, and earthquake loads by: 1) comparing performance under each loading protocol; 2) evaluating effects of anchorage; and 3) eval-uating performance qualitatively and quantitatively with respect to code-defined performance measures. Tests were conducted on...
The objectives of this study were to evaluate the performance of wood-frame shear walls under monotonic and cyclic loads by: 1) determining variability of shear wall performance; 2) comparing performance of walls under each loading protocol; 3) evaluating effects of anchorage on wall performance; and 4) evaluating performance of walls...
The objective of this study was to compare the shear strength of structural composite lumber (SCL) based on shear block to that of shear strength based on torsion test. Shear blocks in two diflcrent orientations fom laminated veneer lumber, parallel strand lumber, and laminated strand lumber (LSL) were tested and...
The objective of this research was to use a three-dimensional (3D) analysis method to evaluate “system effects” in light-frame roof truss assemblies. The goal of this study was to develop an improved and practical design method for 3D roof truss assemblies used in residential construction. A truss plate manufacturer (TPM)...
Earthquake performance of wood-frame shear walls was evaluated by comparing fully and partially anchored walls under monotonic, cyclic, and earthquake loads and comparing with code measures. Suitability of monotonic and cyclic testing to predict seismic performance was examined. Earthquake tests were conducted on 2440-mm-square walls with Douglas-fir studs. Two oriented...
The goal of this study was to develop an understanding of the nature of wave loading on a wood-framed scale residential building model for a variety of building configurations and test conditions. Testing was performed on a 1/6th scale two-story wood-framed residential structure. The structure was impacted with waves and...
The forces exerted on light-frame wood buildings as a result of surge and waves are not fully understood. With a better understanding of these types of forces, it may eventually be possible to build coastal structures to better withstand the loads. In this paper, a recent two part experimental study...
Scientists seek to create a method of tracking logs from stand to product using scent. In addition to developing the chemicals needed for "aroma tagging," scientists work to create an "electronic nose" to recognize the scents. Featuring Dr. Glen Murphy.
Scientists use sound wave techniques as well as NIR (near infra-red light) to determine the stiffness through density of logs. Featuring Dr. Glen Murphy.
Social Scientists study the differing opinions people have regarding forest use and the skills that can facilitate solutions to conflicts that arise from this. Featuring Dr. Bruce Shindler.
The dangers for National Park Service rangers have been increasing. Scientists study psychology, sociology, and recreation resources to help balance the dangers of crime and hazards with the increase in demand for outdoor recreation. Featuring Dr. Jo Tynon.
Scientists seek to explore the relationship between land use and nitrogen levels at different places along the Calapooia River. Featuring Bill Floyd and Dr. Stephen Schoenholtz.
Earthquake tests have trouble imitating the randomness and varied nature of actual earthquakes. Scientists seek to remedy this and make buildings safer by creating dynamic tests that imitate the random nature of earthquakes. Featuring Dr. Rakesh Gupta.
The mystery of how wolves effect the growth of cottonwood has been solved after comparing old and new photos. Featuring Dr. William Ripple and Dr. Robert Beschta.
Wood glues have formaldehyde, which is associated with human health problems, and are petroleum based, which is not renewable. Based on the chemistry of mussels, new renewable glues are being developed. Featuring Dr. Kaichang Li.
Scientists use a large crane to gather samples from the tops of trees. These samples will be tested for turgor in an attempt to explain why trees stop growing. Featuring Dr. Barbara Bond, Dr. Rick Meinzer, and R.A. Dave Woodruff.
The diverse habitat required by salmon and other anadramous fish is often created by fallen debris in a stream. Scientists aid conifers in growing near streams to eventually become this debris. Featuring Dr. Bill Emmingham.
For a long time historians have looked at Lewis and Clark's journals as important sources. Now scientists are doing the same to learn about the Pacific Northwest before white settlement. Featuring: Dr. Andrea Laliberte and Dr. William Ripple
Scientists are trying to find out how to best utilize high-tech devices in the field. Jennie Cornell seeks to find out how to best utilize helicopters for Precision Forestry
Scientists explore the effects of tree buffers along creek banks on both grazing land and stream ecology. Featuring Dr. Badege Bishaw, Dr. Bill Emmingham, and Dr. Bill Rogers.
Mushrooms are found lots of places, such as beneath trees or on woody debris. Dr. Nancy Weber however found mushrooms in a spot most people wouldn't expect to look, in the canopy.
Wood-plastic composites are made out of recycled materials such as pallets and milk jugs. Combining these materials offers a way to reduce waste and create a durable material. Simonsen and Kai-Chang Li work to create stronger, more affordable composites. Featuring Dr. John Simonsen and Dr. Kai-Chang Li.
Objectives:
To evaluate the impact of the ring nematode, Mesocriconema xenoplax on the physiology and productivity of phylloxera-resistant grape rootstocks as a basis for recommending rootstocks in the Pacific Northwest. Specific objectives for 2006:
Spring: Inoculate soil with AMF and M. xenoplax. Plant vines.
Growing season: Monitor plant growth, gas...
Objectives of Proposed Research:
The goals of this project for the next few years are: 1) to develop optimal tissue nutrient levels for N, P, and K in winegrapes that are based on physiological performance and fruit quality, 2) to identify the best tissue (leaf vs. petiole) and time of...
Objectives:
I. To evaluate the effects of five cover crop mixes on grapevine: a) water stress b) nutrient status c) fruit production and quality d) shoot growth e) mycorrhizal colonization.
II. To evaluate cover crop mixes for their: a) establishment rate b) biomass production c) nutrient content.
Hydrogen sulfide and related sulfur compounds produced internally by yeast during fermentation are considered highly undesirable if they are excreted and exceed threshold concentrations in the finished wine, as they cause an unpleasant "reduced character". The threshold for hydrogen sulfide is on the order of parts per billion and that...
The objectives of this research are to monitor tannin and anthocyanin changes during berry development and over several growing seasons to understand how the vintage effects wine composition. Specifically, the objectives of this research project are :
· Determine the effect of berry development on the composition of phenolics (tannins...
The objectives of this research project are to understand tannin and anthocyanin changes during berry development in Pinot noir fruit and wines. Specifically, the objectives of this research project are:
· Determine the effect of berry development on the composition of tannins in cv. Pinot noir berries
· Determine the...
The objectives of this research project are to gain a better understanding of juice/must nutrition and the production of hydrogen sulfide and other 'off' sulfide odors in Oregon wines in relationship to both viticulture and winemaking practices. Specifically, the objectives of this research project are: · To analyze commercial juices/musts...
Color stability and flavor are two of the most important aspects of red wine quality. The development of anthocyanins and tannins in Pinot noir grapes and their relative importance in wine has been under investigation by Dr. James Kennedy. Flavor development, however, is not well understood. Several gas chromatography/olfactometry techniques...
The report below and displays in the lobby summarize the first-year activities of the Oregon Vineyard Soil and Nutrition Initiative. This work has laid the foundations for OVID, the Oregon Vineyard Database, which will fill the second year of OVSNI and is discussed in the final sections.
The spatial and temporal development of grapevine root systems and associated mycorrhizal fungi was studied over the 1999 &2000 growing seasons in a 20-year-old block of Pinot noir vines at Woodhall Research Vineyard. We determined the root length density of woody roots and fine roots deemed to be physiologically active...
The sensory evaluation of the 2000 vintage Pinot noir wines from the Oregon State University viticulture trials at Benton Lane Vineyard was conducted by a panel of 11 semi-trained panelists using a modified version of free-choice profiling. 36 wines were made from 3 replications of the 12 field treatments. For...
1999 Pinot noir wines from the Oregon State University viticulture trials at Benton Lane vineyard were evaluated using free-choice profiling by a panel of 16 Oregon winemakers in January 2001. This work is the continuation of the project described in Manipulating Soil Moisture and Nitrogen Availability to Improve Fermentation Behavior...
The objectives of this study are to evaluate the effects of manipulating soil moisture and nitrogen availability using different approaches, including supplemental irrigation, nitrogen addition to the soil or to the leaves, and the elimination of competition for water and nutrients between the ground cover and the grapevines by tilling....
An approximation of the total yeast fermentable nitrogen content in juice or must is taken as the sum of the nitrogen available from ammonia and the alpha-amino acids present (Bisson 1991 ; Dukes and Butzke 1998 ; Jiranek, Langridge, and Henshcke 1995). Recommended levels of fermentable nitrogen needed by yeast...
This study integrates various vineyard practices that may improve nitrogen availability to the vine, particularly during ripening . Different strategies aimed at improving fermentation behavior and wine quality are being evaluated. This study aims to optimize fruit quality and maximize the juice nitrogen fraction that can be used by yeast...
This study integrates various vineyard practices that may improve nitrogen availability to the vine, particularly during ripening. Different strategies aimed at improving fermentation behavior and wine quality are being evaluated. This study aims to optimize fruit quality and maximize the juice nitrogen fraction that can be used by yeast during...
Objectives of proposed research:
1. Investigate the relationship between abscisic acid (ABA) and auxins and the regulation of carbon partitioning.
2. Investigate the origin of ABA present in the fruit during ripening and attempt to modify the partitioning pattern through manipulation of endogenous ABA levels using mefluidide (ABA biosynthesis promoter)...
Objectives of Research :
1) Construct a whole-vine dry matter and mineral allocation budget for mature grapevines grown in Jory (basaltic parent material) soil.
2) Determine the associated seasonal dynamics of plant-available soil minerals.
3) Model the timing of uptake and allocation of mineral nutrients in different vine tissues.
The Willamette valley has grown to be an important source of high quality grapes for the production of wine. These grapes are a very high value crop that has proven to be profitable in this region. Irrigation of this crop has been limited largely to the establishment stage, with most...
Vineyard managers must decide on the timing and amount of irrigation. In Oregon the need for irrigation differs greatly year to year and field to field based on micro climate, soil, root development, plant health, and root stock. We suggest the use of leaf water potential as a useful management...
The objectives of the trial are to evaluate Merlot clones and the varieties Sangiovese, Tempranillo, Syrah, and Viognier for production characteristics, maturity and fruit composition at harvest, and wine composition and wine quality in order to evaluate their potential for commercial wine grape production in warmer wine growing regions in...
Objective(s) of Proposed Research or Outreach Project:
1. Investigate cover crop management in commercial vineyards on aroma and aroma precursor composition in grapes.
2. Investigate cover crop management in commercial vineyards on flavor quality of wine.
3. Investigate the feasibility to use aroma and aroma precursor analysis in grapes as...
The objectives of this study are to determine:
· How vine vigor and fruit composition vary in different alleyway management regimes: solid vegetative cover vs. every other alleyway of vegetative cover removed
· What differences are observed in different alleyway management regimes within a vineyard
· What differences are observed...
The objectives of this study are to determine:
• How the time of leaf pulling affects Pinot noir fruit quality and composition
• How the intensity of leaf pulling affects Pinot noir fruit quality and composition
• If there is a difference in fruit quality and composition when lateral leafs...
Competition between ‘Pinot noir’ grapevines and alleyway cover crops
was evaluated in two commercial vineyards in western Oregon. Seven
cover crop treatments including a clean-cultivated control were applied
in the fall of 2003 and their impact on vines was monitored in 2004
and 2005. Competition with grapevines was assessed by...
Focus on Forestry is published three times each year (Fall, Winter, Spring) by the Oregon State University College of Forestry. Our goal is to keep Forestry alumni and friends informed about the College of Forestry and its many activities and programs.
There is great concern at present that fish stocks are being depleted by over-fishing. Part of the problem of over-fishing is caused by the common property nature of the fishery resources. In particular, high seas fishery resources, such as highly migratory fish stocks (HMFS) and straddling fish stocks, suffer from...
The arrival in the 1980s of cultured shrimp has induced large changes on the World shrimp market. In this new environment, the French Guyana fishery production now competes strongly with some of these farm-produced shrimp. Consequently, this fishery has experienced serious export problems during the last decade. This paper is...
Although widely accepted, management systems that directly restrict catch or effort are neither efficient nor desirable for many fisheries, and have failed to conserve fishery stocks in many cases. Fisheries scientists have suggested that closing part of the fishery with marine reserves may sustain or increase harvest. These marine reserves...
We conducted a 3-year study of helminth parasites to assess their effect on the lesser prairie-chicken Tympanuchus pallidicinctus. Helminth parasites were found in most of the examined wild prairie chicken carcasses: 95% had eye worm Oxyspirura petrowi, 92% had stomach worm Tetrameres sp., and 59% had caecal worm Subulura sp....
The ability to ascertain gender and age of juvenile grouse is essential for determining gender-specific population age structure and studying timing of reproductive events, respectively. We examined outer rectrix feathers from juvenile Lesser Prairie-Chickens (Tympanuchus pallidicinctus) captured at 30–40 and 50–60 days post-hatching. Blood samples were collected from most chicks...
In considering fisheries regulation in the next decade, I make a concluding point that may become a major theme. This is that individual permanent catch quotas of a regulator-determined TAC are only a stage in the development of management from licensing to private rights (Scott 1989). The condition of open...
The main research question in this paper is: What impacts do the perceived structural changes in (1) consumer demand for fresh quality and (2) mobility (trade) barriers in distribution have on the market and trade patterns for fresh packed consumer fish products? A representative sample of UK and French seafood...
Japan is both the largest producer and consumer of tuna in the world. However, Taiwan has been a major exporter to Japan of Thunnus albacares and Thunnus obesus recently. For example, the market shares of Taiwan's supply are 20% for T. albacares, and 44% for T. obesus in 1992. Hence,...
Japan is the number 1 country in the world in terms of tuna harvest[1]. For example, it started from about 294,961 tons in 1975, then reached its peak at 371,103 tons in 1985. Although the harvest declined since 1985, it bounced back for the recent years and reached 343,611 tons...
A serious impediment blocks advancement of individual transferable quota (ITQ) policy in the United States, particularly in North Pacific fisheries being considered for ITQ management. The traditional ITQ design, that allocates rights to only the harvesting sector, unintentionally expropriates wealth/property interests from the co-dependent-processing sector. This regulatory expropriation is a...
As a Member State of the European Community (EC), the United Kingdom's marine capture fisheries must be managed within the framework of the Community's common fisheries policy (see Box 1). Since 1983 this has included a system of annual total allowable catches (TACs) for most commercially important stocks within the...
An ITQ scheme has been shown to create a quota induced incentive for discarding of fish in excess of what is socially optimal. This finding is corroborated by empirical evidence in several ITQ managed fisheries. The incentive for discarding, over and above those expected in an unmanaged or input controlled...