and Oregon’s forest products industry and timber harvest, 2008: industry trends and impacts of the Great Recession through 2010. By www.fs.fed.us Published On :: Mon., 10 Sep 2012 13:00:00 PST This report traces the flow of Oregon’s 2008 timber harvest through the primary timber processing industry and provides a description of the structure, operation, and condition of Oregon’s forest products industry as a whole. It is the second in a series of reports that update the status of the industry every 5 years. Based on a census conducted in 2009 and 2010, we provide detailed information about the industry in 2008, and discuss historical changes as well as more recent trends in harvest, production, and sales. To convey the severe market and economic conditions that existed in 2008, 2009, and 2010, we also provide updated information on the industry and its inputs and outputs through 2010. Full Article
and Adaptation: Planning for Climate Change and Its Effects on Federal Lands. By www.fs.fed.us Published On :: Mon., 03 Dec 2012 14:30:00 PST National forest managers are charged with tackling the effects of climate change on the natural resources under their care. The Forest Service National Roadmap for Responding to Climate Change and the Climate Change Performance Scorecard require managers to make significant progress in addressing climate change by 2015. To help land managers meet this challenge, Forest Service scientists conducted three case studies on national forests and adjacent national parks and documented a wide range of scientific issues and solutions. They summarized the scientific foundation for climate change adaptation and made the information accessible to land managers by creating a climate change adaptation guidebook and web portal. Case study teams discovered that collaboration among scientists and land managers is crucial to adaptation planning, as are management plans targeted to the particular ecosystem conditions and management priorities of each region. Full Article
and Production, prices, employment, and trade in Northwest forest industries, all quarters 2011 By www.fs.fed.us Published On :: Fri 28 Dec 2012 10:06:00 PDT Provides current information on lumber and plywood production and prices; employment in the forest industries; international trade in logs, lumber, and plywood; volume and average prices of stumpage sold by public agencies; and other related items. Full Article
and True fir spacing and yield trials-a 20-year update By www.fs.fed.us Published On :: Fri, 17 May 2013 13:40:00 PST This report updates data and comparisons from previous reports (Curtis and others 2000, Curtis 2008) on a series of precommercial thinning and yield trials in high-elevation true fir–hemlock stands, using data from the 12 replicates for which 20-year data are now available. The stands were varying mixtures of Pacific silver fir (Abies amabilis (Douglas ex Loudon) Douglas ex Forbes), western hemlock (Tsuga heterophylla (Raf.) Sarg.), and noble fir (Abies procera Rehder). Trends noted in the 2008 report continue. Increment in top height was somewhat reduced at wide spacings. Volume increment and basal area increment increased as the residual number of trees increased. There was a small increase in diameter increment of the 80 largest trees per acre at wide spacing. Relative stand densities on the unthinned plots, as measured by stand density index (SDI) and relative density (RD), are still increasing; it appears that the maximum (not yet attained) is probably at least 20 to 25 percent greater than values observed in Douglas-fir. Full Article
and Natural tree regeneration and coarse woody debris dynamics after a forest fire in the western Cascade Range By www.fs.fed.us Published On :: Fri, 17 May 2013 13:35:00 PST We monitored coarse woody debris dynamics and natural tree regeneration over a 14-year period after the 1991 Warner Creek Fire, a 3631-ha (8,972-ac) mixed severity fire in the western Cascade Range of Oregon. Rates for tree mortality in the fire, postfire mortality, snag fall, and snag fragmentation all showed distinct patterns by tree diameter and species, with Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) more likely to survive a fire, and to remain standing as a snag, than other common tree species. Natural seedling regeneration was abundant, rapid, and highly variable in space. Densities of seedlings >10 cm height at 14 years postfire ranged from 1,530 to 392,000 per ha. Seedling establishment was not concentrated in a single year, and did not appear to be limited by the abundant growth of shrubs. The simultaneous processes of mortality, snag fall, and tree regeneration increased the variety of many measures of forest structure. The singular event of the fire has increased the structural diversity of the landscape. Full Article
and Climate Change, Carbon, and Forestry in Northwestern North America: Proceedings of a Workshop November 14 - 15, 2001 Orcas Island, Washington By www.fs.fed.us Published On :: Fri, 07 Nov 2008 08:00:00 PST Interactions between forests, climatic change and the Earths carbon cycle are complex and represent a challenge for forest managers - they are integral to the sustainable management of forests. In this volume, a number of papers are presented that describe some of the complex relationships between climate, the global carbon cycle and forests. Full Article
and tech. coord. 2010. Economic modeling of effects of climate change on the forest sector and mitigation options: a compendium of briefing papers By www.fs.fed.us Published On :: Mon, 08 Nov 2010 14:34:00 PST This report is a compilation of six briefing papers based on literature reviews and syntheses, prepared for U.S. Department of Agriculture, Forest Service policy analysts and decisionmakers about specific questions pertaining to climate change. Full Article
and Social vulnerability and climate change: synthesis of literature By www.fs.fed.us Published On :: Wed 03 Aug 2011 10:20:00 PST The effects of climate change are expected to be more severe for some segments of society than others because of geographic location, the degree of association with climate-sensitive environments, and unique cultural, economic, or political characteristics of particular landscapes and human populations. Social vulnerability and equity in the context of climate change are important because some populations may have less capacity to prepare for, respond to, and recover from climate-related hazards and effects. Such populations may be disproportionately affected by climate change. This synthesis of literature illustrates information about the socioeconomic, political, health, and cultural effects of climate change on socially vulnerable populations in the United States, with some additional examples in Canada. Through this synthesis, social vulnerability, equity, and climate justice are defined and described, and key issues, themes, and considerations that pertain to the effects of climate change on socially vulnerable populations are identified. The synthesis reviews what available science says about social vulnerability and climate change, and documents the emergence of issues not currently addressed in academic literature. In so doing, the synthesis identifies knowledge gaps and questions for future research. Full Article
and PSNI and Gardai join forces for bank holiday travel operation By www.belfastlive.co.uk Published On :: Sat, 2 May 2020 04:00:00 +0000 "Essential travel does not include visits to second homes, camp sites, caravan parks or similar" Full Article Traffic and travel
and New report provides conservation and management strategies for climate-sensitive yellow-cedar in Alaska By www.fs.fed.us Published On :: 2016-01-13 The U.S. Forest Service's Pacific Northwest Research Station today released a new report that outlines a climate adaptation strategy for yellow-cedar in Alaska. Full Article
and Volume and value of West coast log, lumber exports down in 2015 By www.fs.fed.us Published On :: 2016-03-22 The latest data summarizing West coast log and lumber exports in the fourth quarter of 2015 were released today by the U.S. Forest Service's Pacific Northwest Research Station. The data-covering exports during October, November, and December 2015-were compiled and analyzed by Xiaoping Zhou, a research economist with the station. Full Article
and Forest Service releases maps of element concentrations in Portland moss By www.fs.fed.us Published On :: 2016-06-08 Information can be used to investigate air pollution in the city. Full Article
and Rollins welcomed as Threat Characterization and Management Program Manager By www.fs.fed.us Published On :: 2017-03-02 The U.S. Forest Service’s Pacific Northwest (PNW) Research Station is pleased to announce the arrival of Matt Rollins as the Threat Characterization and Management (TCM) Program Manager. Full Article
and Storage and flux of carbon in live trees, snags, and logs in the Chugach and Tongass National Forests By www.fs.fed.us Published On :: Wed, 21 May 2014 9:55:00 PST Carbon storage and flux estimates for the two national forests in Alaska are provided using inventory data from permanent plots established in 1995–2003 and remeasured in 2004–2010. Estimates of change are reported separately for growth, sapling recruitment, harvest, mortality, snag recruitment, salvage, snag falldown, and decay. Although overall aboveground carbon mass in live trees did not change in the Tongass National Forest, the Chugach National Forest showed a 4.5 percent increase. For the Tongass National Forest, results differed substantially for managed and unmanaged forest: managed lands had higher per-acre rates of sequestration through growth and recruitment, and carbon stores per acre that were higher for decomposing downed wood, and lower for live trees and snags. The species composition of carbon stores is changing on managed lands, with a carbon mass loss for yellow-cedar but increases for red alder and Sitka spruce. On unmanaged lands, the Chugach National forest had carbon mass increases in Sitka spruce and white spruce, and the Tongass National Forest had increases in western redcedar and red alder. Full Article
and Community biomass handbook. Volume I: Thermal wood energy By www.fs.fed.us Published On :: Wed, 21 May 2014 9:55:00 PST This handbook and financial app is a guide to help communities quickly determine if biomass energy projects might work for them so that this option is not overlooked. Its purpose is as a screening tool designed to save significant time, resources, and investment by weeding out those wood energy projects that may never come to fruition from those that have a chance of success. It establishes technical, financial, and social criteria and indicators to evaluate proposed biomass investment options. Through showcasing of successful projects using text, photos, video interviews, and diagrams, it facilitates virtual project planning and interaction with experts. The interactive wood energy financial app allows estimation of capital investment costs to facilitate project design and screening across a variety of wood energy options. The calculator can be accessed from the eBook or from the Web. Full Article
and Climate change vulnerability and adaptation in the North Cascades region, Washington. By www.fs.fed.us Published On :: Mon, 27 Oct 2014 9:55:00 PST The North Cascadia Adaptation Partnership (NCAP) is a science-management partnership consisting of the U.S. Department of Agriculture Forest Service Mount Baker-Snoqualmie and Okanogan-Wenatchee National Forests and Pacific Northwest Research Station; North Cascades National Park Complex; Mount Rainier National Park; and University of Washington Climate Impacts Group. Full Article
and Forest products cluster development in central Arizona—implications for landscape-scale forest restoration By www.fs.fed.us Published On :: Thur, 05 Jun 2014 9:55:00 PST Full Article
and Integrating social, economic, and ecological values across large landscapes By www.fs.fed.us Published On :: Tue, 25 Nov 2014 9:55:00 PST The Integrated Landscape Assessment Project (ILAP) was a multiyear effort to produce information, maps, and models to help land managers, policymakers, and others conduct mid- to broad-scale (e.g., watersheds to states and larger areas) prioritization of land management actions, perform landscape assessments, and estimate cumulative effects of management actions for planning and other purposes. Full Article
and Alaska’s timber harvest and forest products industry, 2011. By www.fs.fed.us Published On :: Tue, 30 Dec 2014 9:55:00 PST This report traces the flow of timber harvested in Alaska during calendar year 2011, describes the composition and operations of the state’s primary forest products industry, and quantifies volumes and uses of wood fiber. Full Article
and Urban green space and vibrant communities: exploring the linkage in the Portland Vancouver area. By www.fs.fed.us Published On :: Mon, 05 May 2015 9:55:00 PST This report investigates the interactions between household location decisions and community characteristics, including green space. Full Article
and California’s forest products industry and timber harvest, 2012. By www.fs.fed.us Published On :: Mon, 02 Nov 2015 9:55:00 PST This report traces the flow of California’s 2012 timber harvest through the primary wood products industry and provides a description of the structure, condition, and economic impacts of California’s forest products sector. Full Article
and California’s forest resources: Forest Inventory and Analysis, 2001–2010. By www.fs.fed.us Published On :: Thur, 03 Mar 2016 9:55:00 PST This report highlights key findings from the most recent (2001–2010) data collected by the Forest Inventory and Analysis program across all forest land in California, updating previously published findings from data collected from 2001 through 2005 (Christensen et al. 2008). Full Article
and Fire in upper Midwestern oak forest ecosystems: an oak forest restoration and management handbook. By www.fs.fed.us Published On :: Thur, 03 Mar 2016 9:55:00 PST We reviewed the literature to synthesize what is known about the use of fire to maintain and restore oak forests, woodlands, and savannas of the upper Midwestern United States, with emphasis on Minnesota, Wisconsin, and Michigan. Full Article
and Silviculture and monitoring guidelines for integrating restoration of dry mixed-conifer forest and spotted owl habitat management in the eastern Cascade Range. By www.fs.fed.us Published On :: Thur, 03 Mar 2016 9:55:00 PST This report addresses the need for developing consistent regional guidelines for stand-level management that integrates goals and objectives for dry forest restoration and habitat management for the northern spotted owl. Full Article
and A climate adaptation strategy for conservation and management of yellowcedar in Alaska By www.fs.fed.us Published On :: Thur, 03 Mar 2016 9:55:00 PST A conservation and management strategy for yellow-cedar in Alaska is presented in the context of climate change. Full Article
and Community biomass handbook. Volume 2: Alaska, where woody biomass can work By www.fs.fed.us Published On :: Thur, 03 Mar 2016 9:55:00 PST If you’re a local businessperson, an entrepreneur, a tribal partner, a community organizer; a decision-maker for a school district, college, or hospital; a government leader; a project developer; an industry leader; or an equipment manufacturer, the Alaska Community Handbook will be helpful to you. Full Article
and Climate change through an intersectional lens: gendered vulnerability and resilience in indigenous communities in the United States By www.fs.fed.us Published On :: Thur, 03 Mar 2016 9:55:00 PST Over the past decade, wood-energy use in Alaska has grown dramatically. Full Article
and Economic and environmental benefits of community-scale cordwood hydronic heaters in Alaska—three case studies By www.fs.fed.us Published On :: Thur, 03 Mar 2016 9:55:00 PST Over the past decade, the use of wood for thermal energy in Alaska has grown significantly. Since 2000, nearly 30 new thermal wood-energy installations in Alaska have been established. Full Article
and Estimates of wood energy demand for residential use in Alaska: an update. By www.fs.fed.us Published On :: THur, 21 Apr 2016 9:55:00 PST Efforts to amend the Tongass National Forest Land Management Plan have necessitated the development of several management scenarios to assist with planning efforts. Full Article
and Northwest Forest Plan—the first 20 years (1994–2013): status and trends of northern spotted owl habitats By www.fs.fed.us Published On :: Mon, 21 Mar 2016 9:55:00 PST Northwest Forest Plan—the first 20 years (1994-2013): status and trends of northern spotted owl habitats. Full Article
and Pushing boundaries: new directions in inventory techniques and applications: Forest Inventory and Analysis (FIA) symposium 2015 By www.fs.fed.us Published On :: Thur, 03 Mar 2016 9:55:00 PST These proceedings report invited presentations and contributions to the 2015 Forest Inventory and Analysis (FIA) Symposium, which was hosted by the Research and Development branch of the U.S. Forest Service. Full Article
and Northwest Forest Plan—the first 20 years (1994–2013): watershed condition status and trends By www.fs.fed.us Published On :: Thur, 03 Nov 2017 9:55:00 PST The Aquatic and Riparian Effectiveness Monitoring Program focuses on assessing the degree to which federal land management under the aquatic conservation strategy (ACS) of the Northwest Forest Plan (NWFP) has been effective in maintaining and improving watershed conditions. We used stream sampling data and upslope/riparian geographic information system (GIS) and remote-sensing data to evaluate condition for sixth-field watersheds in each aquatic province within the NWFP area. Full Article
and Elemental atmospheric pollution assessment via moss based measurements in Portland, Oregon. By www.fs.fed.us Published On :: Wed, 08 Jun 2016 9:55:00 PST Moss accumulates pollutants from the atmosphere and can serve as an inexpensive screening tool for mapping air quality and guiding the placement of monitoring instruments. We measured 22 elements using 346 moss samples collected across Portland, Oregon, in December 2013. Full Article
and Characterizing a forest insect outbreak in Colorado by using MODIS NDVI phenology data and aerial detection survey data. By www.fs.fed.us Published On :: Wed, 17 Aug 2016 9:55:00 PST Forest disturbances are increasing in extent and intensity, annually altering the structure and function of affected systems across millions of acres. Land managers need rapid assessment tools that can be used to characterize disturbance events across space and to meet forest planning needs. Full Article
and Forest Landscape Assessment Tool (FLAT): rapid assessment for land management. By www.fs.fed.us Published On :: Wed, 30 Nov 2016 9:55:00 PST The Forest Landscape Assessment Tool (FLAT) is a set of procedures and tools used to rapidly determine forest ecological conditions and potential threats. Full Article
and Oregon's forest products industry and timber harvest 2013 with trends through 2014. By www.fs.fed.us Published On :: Wed, 30 Nov 2016 9:55:00 PST This report traces the flow of Oregon's 2013 timber harvest through the primary wood products industry and provides detailed description of the structure, timber use, operations, and condition of Oregon's forest products sector. Full Article
and Community biomass handbook. Volume 3: How wood energy is revitalizing rural Alaska. By www.fs.fed.us Published On :: Wed, 30 Nov 2016 9:55:00 PST This book is intended to help people better understand how wood energy is helping to revitalize rural Alaskan communities by reducing energy costs, creating jobs, and helping to educate the next generation. Full Article
and Integrating ecosystem services into national Forest Service policy and operations. By www.fs.fed.us Published On :: Wed, 04 Jan 2017 14:38:00 PST The ecosystem services concept describes the many benefits people receive from nature. It highlights the importance of managing public and private lands sustainably to ensure these benefits continue into the future, and it closely aligns with the U.S. Forest Service (USFS) mission to "sustain the health, diversity, and productivity of the Nation's forests and grasslands to meet the needs of present and future generations.". Full Article
and Climate change vulnerability and adaptation in the Blue Mountains. By www.fs.fed.us Published On :: Tue, 04 Apr 2017 14:38:00 PST The Blue Mountains Adaptation Partnership was developed to identify climate change issues relevant to resource management in the Blue Mountains region, to find solutions that can minimize negative effects of climate change, and to facilitate transition of diverse ecosystems to a warmer climate. Full Article
and Climate change vulnerability assessment for the Chugach National Forest and the Kenai Peninsula. By www.fs.fed.us Published On :: Tue, 04 May 2017 14:38:00 PST This assessment evaluates the effects of future climate change on a select set of ecological systems and ecosystem services in Alaska’s Kenai Peninsula and Chugach National Forest regions. The focus of the assessment was established during a multi-agency/organization workshop that established the goal to conduct a rigorous evaluation of a limited range of topics rather than produce a broad overview. Full Article
and Community biomass handbook volume 4: enterprise development for integrated wood manufacturing. By www.fs.fed.us Published On :: Tue, 04 Apr 2017 14:38:00 PST The Community Biomass Handbook Volume 4: Enterprise Development for Integrated Wood Manufacturing is a guide for creating sustainable business enterprises using small diameter logs and biomass. This fourth volume is a companion to three Community Biomass Handbook volumes: Volume 1: Thermal Wood Energy; Volume 2: Alaska, Where Woody Biomass Can Work; and Volume 3: How Wood Energy is Revitalizing Rural Alaska. This volume is designed to help business partnerships, forest managers, and community groups rapidly explore and evaluate integrated manufacturing opportunities. Full Article
and The geologic, geomorphic, and hydrologic context underlying options for long-term management of the Spirit Lake outlet near Mount St. Helens, Washington. By www.fs.fed.us Published On :: Tue, 04 Jun 2017 14:38:00 PST The 1980 eruption of Mount St. Helens produced a massive landslide and consequent pyroclastic currents, deposits of which blocked the outlet to Spirit Lake. Without an outlet, the lake began to rise, threatening a breaching of the blockage and release of a massive volume of water. To mitigate the hazard posed by the rising lake and provide an outlet, in 1984–1985 the U.S. Army Corps of Engineers bored a 2.6-km (8,500-ft) long tunnel through a bedrock ridge on the western edge of the lake. Full Article
and OpCost: an Open-Source System for Estimating Costs of Stand-Level Forest Operations. By www.fs.fed.us Published On :: Fri, 20 Oct 2017 08:00:00 PST This report describes and documents the OpCost forest operations cost model, a key component of the BioSum analysis framework. OpCost is available in two editions: as a callable module for use with BioSum, and in a stand-alone edition that can be run directly from R. OpCost model logic and assumptions for this open-source tool are explained, references to the literature used in all of the submodels included in OpCost are provided, and guidance is offered on how to change the default hourly machine rates associated with overall logging cost calculations. OpCost enhancements such as cost component breakout, and identifying the least-cost harvest system, are also described and explained. Full Article
and Economic Sensitivity and Risk Analysis for Small-Scale Wood Pellet Systems—an Example From Southeast Alaska. By www.fs.fed.us Published On :: Tue, 08 Aug 2017 08:00:00 PST This research models a wood pellet heating system at the Tlingit-Haida Regional Housing Authority in Juneau, Alaska, used to provide thermal energy to a 929-m2 warehouse, as an alternative to a heating system that burns more costly fossil fuels. Research objectives were to evaluate project economics of the pellet system and to conduct cost:benefit analysis on key variables (initial capital cost, fuel oil cost, and wood pellet cost). Economic results of interest included net present value, payback, internal rate of return, and cost:benefit ratio. Monte Carlo simulations were conducted using RETScreen software with the parameters of heating oil cost, wood pellet cost, fuel price escalation, and heating load. Cost:benefit analysis was conducted for capital cost versus wood fuel cost and also versus alternative fuel cost. This research found that economic performance was favorable over a wide range of normal operating conditions, even when paying a relatively high price for wood fuel. A pellet production facility in southeast Alaska could lead to lower wood fuel costs and even more favorable regional economics. Full Article
and Oregon’s Forest Resources, 2001–2010: Ten-Year Forest Inventory and Analysis Report. By www.fs.fed.us Published On :: Mon, 13 Nov 2017 08:00:00 PST This report highlights key findings from a comprehensive vegetation survey of all forested land across the state of Oregon. A total of 5,180 forested field plots in Oregon were visited by Forest Inventory and Analysis (FIA) crews over a 10-year period from 2001 to 2010. Oregon has 30 million acres of forest, covering nearly half the state. The structure and composition of Oregon’s forests differ considerably across the state, particularly east versus west of the Cascade Range. Western Oregon forests are dominated by higher productivity classes (85 to 224 cubic feet per acre annual growth) and are composed of Douglas-fir and western hemlock, while forests in the east typically exhibit lower productivity (0 to 84 cubic feet per acre annual growth) and are composed of ponderosa pine, western juniper, and lodgepole pine. The Forest Service and Bureau of Land Management administer the majority of forested land in Oregon; these public forests managed by federal agencies tend to have older, larger trees. Private owners, both corporate and noncorporate, own nearly half of the forested land in western Oregon, particularly in areas of high productivity. Understory vegetation in Oregon forests is more abundant in younger, moist forests. Non-native species are present in many of Oregon’s forests, most notably cheatgrass in the east and Himalayan blackberry in the west. This report includes estimates of forest growth, removals, and mortality for ownership groups across the state. The FIA program will continue to revisit and remeasure all the field plots over 10 years to report on changes in Oregon’s forest resources. Full Article
and Historical Forest Structure, Composition, and Spatial Pattern in Dry Conifer Forests of the Western Blue Mountains, Oregon. By www.fs.fed.us Published On :: Thu, 16 Nov 2017 08:00:00 PST In frequent-fire forests of the interior Western United States, historical (prefire suppression) conditions are often used as a reference to set management objectives, guide prescriptions, and monitor treatment effectiveness. We quantified the historical size, density, composition, and spatial patterns of dry mixed-conifer forests in the Blue Mountains of Oregon to establish reference conditions that could be used for ongoing forest-restoration efforts. Full Article
and Wood and Coal Cofiring in Alaska—Operational Considerations and Combustion Gas Effects for a Grate-Fired Power Plant. By www.fs.fed.us Published On :: Thu, 16 Feb 2018 08:00:00 PST Coal is the primary fuel source for electrical power generation in interior Alaska, with more than 600,000 tons burned annually at five different power plants. Woody biomass could be used as part of this fuel mix, offering potential environmental and economic benefits. In this research, debarked chips were cofired with locally mined coal at the Aurora Power Plant facility in downtown Fairbanks, Alaska. During two days of testing, aspen chips were successfully cofired with coal at average rates of 2.4 percent and 4.8 percent of total energy value. Combustion gases were analyzed during combustion of 100- percent coal, as well as at two different blends with aspen chips, for levels of carbon dioxide, carbon monoxide, oxygen, and nitrogen compounds. Carbon monoxide was suggested as the combustion gas most influenced by changes in woody biomass blend rate. The potential logistic and operational challenges when cofiring were also observed. Cofiring biomass at low levels in grate-combustion systems could be performed with relative ease, with only minor impacts on plant operations, including fuel storage, handling, and performance. Full Article
and Deep Canyon and Subalpine Riparian and Wetland Plant Associations of The Malheur, Umatilla, and Wallowa-Whitman National Forests By www.fs.fed.us Published On :: Thu, 09 Nov 2006 09:26:36 PST This guide presents a classification of the deep canyon and subalpine riparian and wetland vegetation types of the Malheur, Umatilla, and Wallowa-Whitman National Forests. A primary goal of the deep canyon and subalpine riparian and wetland classification was a seamless linkage with the midmontane northeastern Oregon riparian and wetland classification provided by Crowe and Clausnitzer in 1997. The classification is based on potential natural vegetation and follows directly from the plant association concept for riparian zones. The 95 vegetation types classified across the three national forests were organized into 16 vegetation series, and included some 45 vegetation types not previously classified for northeastern Oregon subalpine and deep canyon riparian and wetland environments. The riparian and wetland vegetation types developed for this guide were compared floristically and environmentally to riparian and wetland classifications in neighboring geographic regions. For each vegetation type, a section was included describing the occurrence#40;s#41; of the same or floristically similar vegetation types found in riparian and wetland classifications developed for neighboring geographic regions. Lastly, this guide was designed to be used in conjunction with the midmontane guide to provide a comprehensive look at the riparian and wetland vegetation of northeastern Oregon. Full Article
and Variation In Shrub and Herb Cover and Production On Ungrazed Pine and Sagebrush Sites In Eastern Oregon: A 27-Year Photomonitoring Study By www.fs.fed.us Published On :: Fri, 30 Mar 2007 09:30:00 PST Study objectives were to evaluate yearly fluctuations in herbage canopy cover and production to aid in defining characteristics of range condition guides. Sites are located in the forested Blue Mountains of central Oregon. They were selected from those used to develop range condition guides where soil, topographic, and vegetation parameters were measured as a characterization of best range condition. Plant community dominants were ponderosa pine/pinegrass, ponderosa pine/bitterbrush/Idaho fescue savanna, low sagebrush/bluebunch wheatgrass, and rigid sagebrush scabland. None of the sites were grazed during the previous 30 years or during the 27-year study. Each location was permanently marked by fence posts, and a meter board was placed 10 m down an established transect line. Photographs (color slides) were taken down the transect with closeups left and right of the meter board. Sampling was limited to August 1-4 each year when canopy cover and herbage production were determined. Both total canopy cover and herbage production varied by about a 2.4-fold difference on each site over the 27 years. Apparently "good range condition" may be something of a "running target" and lacks a well-defined set of parameters. Canopy cover is a poor parameter for characterizing range condition. Three of the four plant communities were dominated by bunchgrasses. Abundance of seedheads is commonly used to indicate good range health. But on these sites, seedheads were not produced about half the time. Because these sites were in "good range condition," lack of seedhead production may indicate maximum competition in the community. Maximum competition and maximum vigor do not seem to be synonymous. These bunchgrass communities varied in their greenness on the first of August each year from cured brown to rather vibrant green suggesting important annual differences in phenology. The pinegrass community, being dominated by rhizomatous species, showed surprising variance in seedhead production. Pinegrass did not flower, but Wheeler's bluegrass, lupine, and Scouler's woolyweed were quite variable, averaging inflorescences only 75 percent of the time. Full Article
and Rangeland exclosures of northeastern Oregon: stories they tell (1936-2004) By www.fs.fed.us Published On :: Fri, 31 Aug 2007 08:45:00 PST Rangeland exclosures installed primarily in the 1960s, but with some from the 1940s, were resampled for changes in plant community structure and composition periodically from 1977 to 2004 on the Malheur, Umatilla, and Wallowa-Whitman National Forests in northeastern Oregon. They allow one to compare vegetation with all-ungulate exclusion (known historically as game exclosures), all-livestock exclusion (known historically as stock exclosures), and with no exclusion (known as open areas). Thirteen upland rangeland exclosures in northeastern Oregon were selected and are presented with plant community trend data and possible causes of changes over time. Key findings are that moderate grazing by native ungulates afforded by the livestock exclosures generally stimulated bunchgrasses to retain dominance and vitality; native bunchgrasses can replace invasive rhizomatous plants given a reduction in disturbance over time; shrubs increased without ungulate use in shrubland communities; and invasive annuals that established following severe disturbances to the grassland community diminished with aggressive competition from perennial bunchgrasses. Full Article