as Bioengery from trees: using cost-effective thinning to reduce forest fire hazards, based on science By www.fs.fed.us Published On :: Thu, 24 Sep 2009 08:20:00 PST Increasingly large and severe wildfires threaten millions of forested acres throughout the West. Under certain conditions, mechanical thinning can address these hazardous conditions while providing opportunitiesto create renewable energy and reduce our carbon footprint but how do land managers decide whether thinning is a good idea? How do they decide where to begin, and what to do with the removed trees? Prioritizing treatment areas and determining the most effective techniques for fuel hazard reduction depends on various factors such as owner objectives, forest types, and the availability of processing facilities. Full Article
as Alaska birch for edge-glued panel production considerations for wood products manufacturers. By www.fs.fed.us Published On :: Tue, 13 Apr 2010 10:40:00 PST Edge-glued panels could become a natural extension for the birch (Betula papyrifera Marsh.) lumber industry in Alaska, resulting in greater utilization of the birch resource while allowing producers to explore a wider variety of products and markets. Full Article
as Estimating sawmill processing capacity for tongass timber: 2007 and 2008 update By www.fs.fed.us Published On :: Thu, 17 Jun 2010 09:45:00 PST In spring and summer of 2008 and 2009, sawmill production capacity and utilization information was collected from major wood manufacturers in southeast Alaska. The estimated mill capacity in southeast Alaska for calendar year 2007 was 292,350 thousand board feet (mbf) (log scale), and for calendar year 2008 was 282,350 mbf (log scale). Full Article
as A U.S. Forest Service special forest products appraisal system: background, methods, and assessment. By www.fs.fed.us Published On :: Fri, 06 Aug 2010 10:45:00 PST Increasing concern over the management and harvest of special forest products (SFP) from national forest lands has led to the development of new Forest Service policy directives. Full Article
as Woody biomass for bioenergy and biofuels in the United States—a briefing paper. By www.fs.fed.us Published On :: Mon, 09 Aug 2010 11:10:00 PST Woody biomass can be used for the generation of heat, electricity, and biofuels. In many cases, the technology for converting woody biomass into energy has been established for decades, but because the price of woody biomass energy has not been competitive with traditional fossil fuels, bioenergy production from woody biomass has not been widely adopted. However, current projections of future energy use and renewable energy and climate change legislation under consideration suggest increased use of both forest and agriculture biomass energy in the coming decades. Full Article
as Developing estimates of potential demand for renewable wood energy products in Alaska By www.fs.fed.us Published On :: Tue, 24 Aug 2010 13:40:00 PST Goal three of the current U.S. Department of Agriculture, Forest Service strategy for improving the use of woody biomass is to help develop and expand markets for woody biomass products. This report is concerned with the existing volumes of renewable wood energy products (RWEP) that are currently used in Alaska and the potential demand for RWEP for residential and community heating projects in the state. Full Article
as . 2012. Natural and cultural history of beargrass (Xerophyllum tenax). Gen. Tech. Rep. PNW-GTR-864. Portland, OR: U.S Department of Agriculture, Forest Service,Pacific Northwest Research Station. 80 p. By www.fs.fed.us Published On :: Thu., 25 Oct 2012 13:30:00 PST Forest managers are seeking practical guidance on how to adapt their current practices and, if necessary, their management goals, in response to climate change. Science-management collaboration was initiated on national forests in eastern Washington where resource managers showed a keen interest in science-based options for adapting to climate change at a 2-day workshop. Scientists and managers reviewed current climate change science and identified resources vulnerable to expected climate change. Vulnerabilities related to vegetation and habitat management included potential reductions in forest biodiversity and low forest resilience to changing disturbance regimes. The vulnerabilities related to aquatic and infrastructure resources included changing water quality and quantity, the risk to roads and other facilities from changes to hydrologic regimes, and the potential loss of at-risk aquatic species and habitats. Managers then worked in facilitated groups to identify adaptations that could be implemented through management and planning to reduce the vulnerability of key resources to climate change. The identified adaptations were grouped under two major headings: Increasing Ecological Resiliency to Climate Change, and Increasing Social and Economic Resiliency to Climate Change. The information generated from the science-management collaborative represents an initial and important step in identifying and prioritizing tangible steps to address climate change in forest management. Next would be the development of detailed implementation strategies that address the identified management adaptations.. Full Article
as How to Use Transformed Motion Shapes as Backgrounds with Divi By www.elegantthemes.com Published On :: Wed, 06 May 2020 16:00:24 +0000 Divi’s new scroll effects are made for you to easily take your web design experience to the next level. Of course, you can apply it to elements within your section directly, but you can choose to add motion to underlying elements too. Going for an underlying approach allows you to keep content static while having […] The post How to Use Transformed Motion Shapes as Backgrounds with Divi appeared first on Elegant Themes Blog. Full Article Divi Resources Divi Nation Divi Tutorial transformed motion shapes web design
as EPISODE 2—BEYOND THE CONCRETE JUNGLE: CITIES AS SOURCES OF ECOSYSTEM SERVICES By www.fs.fed.us Published On :: 2012-10-01 October 2012—When you hear the word “ecosystem,” what comes to mind? A forest? A river, maybe? Well, how about a city? It turns out, the green spaces in our urban areas can offer a range of ecosystem services, just like forests and rivers. Station scientists are working to better understand cities as ecosystems and demonstrate how nearby nature provides important benefits and services. (4:19) Full Article
as Prescribed Fires Are Not Created Equal: Fire Season and Severity Effects In Ponderosa Pine Forests of The Southern Blue Mountains By www.fs.fed.us Published On :: Tue, 06 Mar 2006 15:25:36 PST In the mid-1990s, forest managers on the Malheur National Forest were concerned about their prescribed fire program. Although they have only a few weeks of acceptable conditions available in the spring and fall, they were worried that spring-season prescribed burning might be exacerbating black stain root disease and having negative effects on understory plants. Full Article
as Domestic Market Opportunities For Alaska Lumber-Species Preferences By Secondary Wood Products Manufacturers In The Continental United States. By www.fs.fed.us Published On :: Wed, 05 Apr 2006 15:25:36 PST New equipment, technology, and marketing efforts have allowed Alaska's wood products producers to consider opportunities previously unavailable to them. Until recently, the primary product produced by Alaska firms was rough, unseasoned lumber sold primarily within local markets. Given the purchase and installation of new drying and planing equipment, Alaska producers can now enter domestic and export markets for a variety of secondary wood products. Previously underutilized species, such as red alder (Alnus rubra Bong.), paper birch (Betula papyrifera Marsh.), and Alaska yellow-cedar (Chamaecyparis nootkatensis (D. Don) Spach) are also gaining in popularity and market potential. A detailed knowledge of species preferences for Alaska lumber, across business types and geographic regions, will be essential if Alaska producers are to be competitive. Full Article
as If A Tree Falls In The Woods, Who Will Measure It? DecAID Decayed Wood Advisor By www.fs.fed.us Published On :: Tue, 02 May 2006 15:00:36 PST Decayed wood plays many critical roles in forest ecosystems. Standing dead trees, called snags, provide habitat for a suite of wildlife, including several species of birds, insects, bats, and other mammals. Down wood provides wildlife habitat and performs ecosystem services such as releasing humus, nitrogen, and phosphorus into the forest soil, storing pockets of moisture, and stabilizing soil on slopes. Root wads, tree stumps, hollow trees, and partially dead trees also perform important ecological roles as wildlife habitats and sources of soil organic matter. DecAID Advisor is an on-line decision-aiding system to help managers plan for wood decay elements for biodiversity in forests of Washington and Oregon. DecAID Advisor is a statistical "meta-analysis" and synthesis of a vast amount of wildlife and inventory data. It does not make decisions for managers, but instead, DecAID Advisor advises on size and amount of snags, down wood, and other wood decay elements to meet management objectives and to help set those objectives by forest type and structural condition class. It is the first decision-aiding tool of its kind, given its scope of species, inventory data, and topics provided. Full Article
as Nontimber Forest Product Opportunities In Alaska By www.fs.fed.us Published On :: Fri, 12 May 2006 12:00:00 PST Nontimber forest products from southern Alaska (also called special forest products) have been used for millennia as resources vital to the livelihoods and culture of Alaska Natives and, more recently, as subsistence resources for the welfare of all citizens. Many of these products are now being sold, and Alaskans seek additional income opportunities through sustainable harvest and manufacture of such forest resources. We discuss the unique legal, regulatory, land tenure, geographic, vegetation, and climatic context that southern Alaska presents for marketing nontimber forest products; summarize the various species and types of products being harvested; and consider the marketing challenges and opportunities new entrepreneurs will encounter. The information and resources we provide are intended to enhance income opportunities for all Alaskans, while sustaining the organisms harvested, respecting traditional activities, and ensuring equitable access to resources. Full Article
as WestProPlus: A Stochastic Spreadsheet Program For The Management of All-Aged Douglas-Fir-Hemlock Forests In The Pacific Northwest By www.fs.fed.us Published On :: Thu, 08 Jun 2006 14:00:36 PST WestProPlus is an add-in program developed to work with Microsoft Excel to simulate the growth and management of all-aged Douglas-fir-western hemlock (Pseudotsuga menziesii (Mirb.) Franco-Tsuga heterophylla (Raf.) Sarg.) stands in Oregon and Washington. Its built-in growth model was calibrated from 2,706 permanent plots in the Douglas-fir-western hemlock forest type in Oregon and Washington. Stands are described by the number of trees per acre in each of nineteen 2-in diameter classes in four species groups: Douglas-fir, other shadeintolerant species, western hemlock, and other shade-tolerant species. WestProPlus allows managers to predict stand development by year and for many decades from a specific initial state. The simulations can be stochastic or deterministic. The stochastic simulations are based on bootstrapping of the observed errors in models of stand growth, timber prices, and interest rate. When used in stochastic simulations, this bootstrap technique simulates random variables by sampling randomly (with replacement) from actual observations of the variable, rather than from an assumed distribution. Users can choose cutting regimes by specifying the interval between harvests (cutting cycle) and a target distribution of trees remaining after harvest. A target distribution can be a reverse-J-shaped distribution or any other desired distribution. Diameterlimit cuts can also be simulated. Tabulated and graphic results show diameter distributions, basal area, volumes by log grade, income, net present value, and indices of stand diversity by species and size. This manual documents the program installation and activation, provides suggestions for working with Excel, and gives background information on West-ProPlus's models. It offers a comprehensive tutorial in the form of two practical examples that explain how to start the program, enter simulation data, execute a simulation, compare simulations, and plot summary statistics. Full Article
as Alaska Communities and Forest Environments: A Problem Analysis and Research Agenda By www.fs.fed.us Published On :: Thu, 08 Jun 2006 14:40:36 PST This problem analysis describes a variety of human-resource interaction issues and identifies related social science research and development needs that serve as the foundation for the Alaska Communities and Forest Environments Team within the Pacific Northwest Research Station. The document lays out a research agenda that focuses on understanding relations between human communities and natural resources. Full Article
as A Review of Double-Diffusion Wood Preservation Suitable For Alaska By www.fs.fed.us Published On :: Fri, 14 Jul 2006 12:00:00 PST Currently, all treated lumber used in Alaska is imported from the 48 contiguous states and Canada because there are no wood-treating facilities in Alaska. This report explores conventional and alternative wood-treating methods and reviews previous studies and laboratory tests on treated wood. In investigating wood treatment as a possible processing option for Alaska forest products manufacturers, the double-diffusion method of using sodium fluoride followed by a copper sulfate appeared to be the most advantageous approach. This method of treating wood was identified because it can be used to treat freshly cut or green wood. This was an important factor to consider, owing to the limited drying capacity in Alaska. Little information was available as to the chemical retention after treating and its resistance to leaching. Full Article
as Timber Products Output and Timber Harvests In Alaska: Projections For 2005-25 By www.fs.fed.us Published On :: Mon, 31 Jul 2006 14:26:36 PST Projections of Alaska timber products output, the derived demand for logs and chips, and timber harvest by owner are developed by using a trend-based analysis. Full Article
as Estimating Sawmill Processing Capacity For Tongass Timber: 2003 and 2004 Update By www.fs.fed.us Published On :: Mon, 31 Jul 2006 14:32:36 PST In spring 2004 and 2005, sawmill capacity and wood utilization information was collected for selected mills in southeast Alaska. The collected information is required to prepare information for compliance with Section 705(a) of the Tongass Timber Reform Act. The total capacity in the region (active and inactive mills) was 370,350 thousand board feet (mbf) Scribner log scale during both calendar (CYs) 2003 and 2004. The capacity of active mills for the same periods was 255,350 mbf. This is a 7.4-percent increase in active capacity from CY 2002 (237,850 mbf) to CY 2004. The actual volume of material processed during CY 2004 was 31,027 mbf Scribner log scale. This is a 21.9-percent reduction over CY 2002 (39,702 mbf Scribner log scale). Full Article
as Alaska's Lumber-Drying Industry-Impacts From A Federal Grant Program By www.fs.fed.us Published On :: Fri, 11 Aug 2006 12:00:00 PST A survey determined that installed dry kiln capacity in Alaska more than doubled to an estimated 220 thousand board feet (mbf) within 4 years (2000-2004). This increased ability to produce dry lumber and value-added products resulted from industry efforts to obtain federal funding to support a dry kiln grant program. This report reviews grantees' progress in implementing grantsupported projects and their impact on the production capabilities of the Alaska lumber drying industry. Data were collected in early 2005 by using a standard set of questions asked of 19 dry kiln owners. Much of the growth in drying and value-added processing capacity has been concentrated in southeast Alaska where there has been the greatest dry kiln investment. During 2004, the estimated volume of lumber dried in Alaska was 813 mbf, whereas potential annual capacity was estimated to be almost 6,600 mbf. This indicates that Alaska producers are drying just over 12 percent of their potential capacity. Factors that will increase the future production of value-added forest products in Alaska include a continuing supply of economically priced timber, the ability of the industry to support a reasonably priced grading service, and the ability of producers to move value-added products to domestic and export markets. Full Article
as Effects of Vegetation Control and Organic Matter Removal On Soil Water Content In A Young Douglas-Fir Plantation By www.fs.fed.us Published On :: Thu, 05 Sep 2006 12:25:36 PST We evaluated the effects of vegetation control and organic matter (OM) removal on soil water content (SWC) in a Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) plantation from age 3 through age 5. Treatments were presence versus absence of vegetation control through year 5 and bole-only harvest of the previous stand versus total-tree harvest of the previous stand including removal of all coarse woody residues. Full Article
as Does It Work? Monitoring The Effectiveness of Stream Management Practices In Alaska By www.fs.fed.us Published On :: Thu, 07 Sep 2006 12:00:36 PST The condition of aquatic habitat and the health of aquatic species, particularly salmon, are a significant concern in the Pacific Northwest. Land management agencies use fish and riparian guidelines intended to maintain or improve aquatic habitat. Full Article
as A Clear Picture of Smoke: Bluesky Smoke Forecasting By www.fs.fed.us Published On :: Thu, 05 Oct 2006 10:25:36 PST Over the last several decades, the overall air quality goal in the United States has been to protect public health and clear skies by reducing emissions. At the same time, however, the risk of catastrophic fire has been rising in forests around the country as overly dense trees and understory brush crowd the stands. Full Article
as Yellow-Cedar Decline In The North Coast Forest District of British Columbia By www.fs.fed.us Published On :: Mon, 28 Nov 2005 15:25:36 PST The distribution of a forest decline of yellow-cedar (Callitropsis nootkatensis (D. Don) Orsted) has been documented in southeast Alaska, but its occurrence in British Columbia was previously unknown. We conducted an aerial survey in the Prince Rupert area in September 2004 to determine if yellow-cedar forests in the North Coast Forest District of British Columbia were experiencing a similar fate as in nearby Alaska. Numerous large areas of concentrated yellow-cedar mortality were found, extending the known distribution of the decline problem 150 km south of the Alaska-British Columbia border. The forests with the most concentrated tree death occurred at 300 to 400 m elevation, frequently on south aspects. The appearance of these forests including proximity to bogs; mixtures of dying, recently killed, and long-dead trees; and crown and bole symptoms of dying trees were all consistent with the phenomenon in southeast Alaska. Full Article
as Timber Resource Statistics For Forest Land In Eastern Washington, Jan 2002 By www.fs.fed.us Published On :: Mon, 04 Dec 2006 12:25:36 PST This report summarizes timber resource statistics for the 20 counties in eastern Washington. The inventory sampled all private and public lands except those administered by the National Forest System in 2001, and those that were reserved from management for wood products. Full Article
as Laminated Root Rot In A Western Washington Plantation: 8-Year Mortality and Growth of Douglas-Fir As Related To Infected Stumps, Tree Density, and Fertilization By www.fs.fed.us Published On :: Mon, 04 Dec 2006 13:25:36 PST A 4-year-old Douglas-fir plantation in the western Washington Cascades was monitored for 8 years after fertilization with potassium (K), nitrogen (N), and K+N to determine fertilizer effects on rates of mortality from laminated root rot (LRR) and other causes relative to a nonfertilized control. Full Article
as Growth of Bear-Damaged Trees In A Mixed Plantation of Douglas-Fir and Red Alder By www.fs.fed.us Published On :: Fri, 02 Feb 2007 10:25:10 PST Incidence and effects of tree damage by black bear (Ursus americanus altifrontalis) in a 50-year-old, coast Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco var. menziesii) plantation are described. Bears girdled or partially girdled 35 dominant or codominant Douglas-fir trees per acre, but only in that portion of the plantation that had been interplanted at age 4 with red alder (Alnus rubra Bong). No red alder were damaged. Bears damaged Douglas-fir in this stand on at least four occasions between 1929 (planting) and 1991. Fully girdled Douglas-fir (six per acre in 1976) died within 2 to 14 years. Of the 29 per acre partially girdled trees, 17 percent died in the 16 years of observation, compared to 9 percent of nondamaged trees. Crosssectional growth of surviving damaged trees exceeded that of matched, nondamaged trees by about 30 percent at three heights on the bole: 6 ft, 4.5 ft, and immediately above the damaged area. Death of six large Douglas-fir trees per acre reduced live stand volume of this species for about 6 years after bear damage until growth of the remaining trees compensated for the volume lost to mortality. Confirmation of the stimulating effects of bear damage on subsequent tree growth is needed at other locations. Full Article
as The Fall River Long-Term Site Productivity Study in Coastal Washington: Site Characteristics, Methods, and Biomass and Carbon and Nitrogen Stores Before and After Harvest By www.fs.fed.us Published On :: Fri, 02 Feb 2007 11:00:00 PST The Fall River research site in coastal Washington is an affiliate installation of the North American Long-Term Soil Productivity (LTSP) network, which constitutes one of the world's largest coordinated research programs addressing forest management impacts on sustained productivity. Overall goals of the Fall River study are to assess effects of biomass removals, soil compaction, tillage, and vegetation control on site properties and growth of planted Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco). Biomass-removal treatments included removal of commercial bole (BO), bole to 5-cm top diameter (BO5), total tree (TT), and total tree plus all legacy woody debris (TT+). Vegetation control (VC) effects were tested in BO, while soil compaction and compaction plus tillage were imposed in BO+VC treatment. All treatments were imposed in 1999. The preharvest stand contained similar amounts of carbon (C) above the mineral soil (292 Mg/ha) as within the mineral soil to 80- cm depth including roots (298 Mg/ha). Carbon stores above the mineral soil ordered by size were live trees (193 Mg/ha), old-growth logs (37 Mg/ha), forest floor (27 Mg/ha), old-growth stumps and snags (17 Mg/ha), coarse woody debris (11 Mg/ha), dead trees/snags (7 Mg/ha), and understory vegetation (0.1 Mg/ha). The mineral soil to 80-cm depth contained 248 Mg C/ha, and roots added 41 Mg/ha. Total nitrogen (N) in mineral soil and roots (13 349 kg/ha) was more than 10 times the N store above the mineral soil (1323 kg/ha). Postharvest C above mineral soil decreased to 129, 120, 63, and 50 Mg/ha in BO, BO5, TT, and TT+, respectively. Total N above the mineral soil decreased to 722, 747, 414, and 353 Mg/ha in BO, BO5, TT, and TT+, respectively. The ratio of total C above the mineral soil to total C within the mineral soil was markedly altered by biomass removal, but proportions of total N stores were reduced only 3 to 6 percent owing to the large soil N reservoir on site. Full Article
as National Forest Economic Clusters: A New Model For Assessing National-Forest-Based Natural Resources Products and Services By www.fs.fed.us Published On :: Tue, 20 Feb 2007 12:00:00 PST National forest lands encompass numerous rural and urban communities. Some national-forest-based communities lie embedded within national forests, and others reside just outside the official boundaries of national forests. The urban and rural communities within or near national forest lands include a wide variety of historical traditions and cultural values that affect their process of economic development. National-forest-based urban and rural communities participate in numerous economic sectors including nontraded industries, resource-dependent traded industries, and non-resource-dependent traded industries. These communities represent microeconomic environments. Cluster theory provides an explicit framework to examine the microeconomic relationships between national forests and their embedded and neighboring communities. Implementation of economic cluster initiatives in national-forest-based communities could improve their overall social well-being through increased competitive advantage based on innovation and higher productivity. This paper proposes establishing an Economic Clusters research team within the Forest Service. This team would dedicate its efforts to the analysis and improvement of the determinants of competitive advantage affecting national-forest-based communities. Full Article
as Market Opportunities For Kitchen Cabinets Made From Alaska Hardwoods: A Synthesis and Review of Recent Research By www.fs.fed.us Published On :: Fri, 30 Mar 2007 09:30:00 PST The kitchen cabinet industry has shown significant growth recently, with expanding residential markets, new cabinet styles, and larger kitchens. This industry represents an opportunity for small Alaska wood producers to create high-value secondary products. In response to recent trends in kitchen cabinet manufacturing and the need to identify opportunities for underutilized species, the Alaska Wood Utilization Research and Development Center has conducted numerous studies evaluating consumer preferences for Alaska's primary hardwoods-Alaska birch (Betula papyrifera var. humilis )Reg.) Fern & Raup) and red alder (Alnus rubra Bong.). These studies explored consumer preferences under a range of marketing parameters, cabinet appearances, and regional market locations. This paper summarizes these studies and offers insights into the potential market for Alaska's hardwoods as secondary wood products such as kitchen cabinets. Full Article
as Evaluating Forest Land Development Effects On Private Forestry In Eastern Oregon By www.fs.fed.us Published On :: Fri, 30 Mar 2007 09:30:00 PST Research suggests that forest land development can reduce the productivity of remaining forest land because private forest owners reduce their investments in forest management. We developed empirical models describing forest stocking, thinning, harvest, and postharvest tree planting in eastern Oregon, as functions of stand and site characteristics, ownership, and building densities. The models are based on USDA Forest Service Forest Inventory and Analysis data gathered in eastern Oregon in 1987 and 1998, and data describing building densities gathered by the Oregon Department of Forestry from aerial photographs taken over the same period. We used the models to examine the potential effects of population growth and development, as described by increasing building densities, on the likelihood that private forest owners maintain forest stocking, precommercially thin, harvest, and plant trees following harvest. Empirical results suggest that population growth and development have had no measurable effect on these activities in eastern Oregon during the period examined. Any development effects on private forest management and investment so far are likely to be fairly localized. Full Article
as The 2005 RPA timber assessment update. By www.fs.fed.us Published On :: Fri, 20 Apr 2007 10:40:00 PST This update reports changes in the Nation's timber resource since the Analysis of the Timber Situation in the United States was completed in 2003. Prospective trends in demands for and supplies of timber, and the factors that affect these trends are examined. These trends include changes in the U.S. economy, increased salvage of British Columbia beetle-killed timber, and a stronger U.S. dollar. Other prospective trends that might alter the future timber situation are discussed including changes in U.S. timberland area, reductions in southern pine plantation establishment, impacts of climate change on forest productivity, increased restoration thinning on Western public lands, and the impact of programs to increase carbon sequestration through afforestation. Various management implications such as the influence of prices on forest management, concerns about changes in forest area, the emerging open space issue, forests as a set of commons, seeking to find greater compatibility in forest management, and the stewardship agenda are discussed. Full Article
as An assessment of frameworks useful for public land recreation planning. By www.fs.fed.us Published On :: Fri, 20 Apr 2007 10:40:00 PST Public land managers are confronted with an ever-growing and diversifying set of demands for providing recreation opportunities. Coupled with a variety of trends (devolution of governance and decisionmaking, population growth, technological innovation, shifts in public values, economic restructuring) and reduced organizational capacity, these demands represent a significant and complex challenge to public land management. One way of dealing with this situation is to use a framework to assist in working through this complexity. A framework, for the purpose of this report, is a process using a set of steps, based on sound science, that assists managers in framing a particular problem, working through it, and arriving at a set of defendable decisions. Several such frameworks exist for providing recreation opportunities on public lands. These include the Recreation Opportunity Spectrum, Limits of Acceptable Change, Visitor Experience and Resource Protection, Visitor Impact Management, and Benefits-Based Management. The report traces the development of each of these frameworks, describes the fundamental premises and concepts used within them, and provides an assessment of the experience with their use. Each of the frameworks has been used with varying success, depending on the organization's will, its technical capacity, the extent to which the process is inclusive of varying value systems, how open and deliberative the process is, the extent to which the organization is concerned with effectiveness, and the extent to which issues are confronted at the systems level. Full Article
as Large-scale silviculture experiments of western Oregon and Washington By www.fs.fed.us Published On :: Thu, 16 Aug 2007 09:00:00 PST We review 12 large-scale silviculture experiments (LSSEs) in western Washington and Oregon with which the Pacific Northwest Research Station of the USDA Forest Service is substantially involved. We compiled and arrayed information about the LSSEs as a series of matrices in a relational database, which is included on the compact disc published with this report and available online at http://www.fs.fed.us/pnw/research/lsse. The LSSEs are both spatially and temporally large scale, with experimental treatment units between 5 and 100 acres and proposed study durations of 20 to 200 years. A defining characteristic of the LSSEs is that a broad range of response variables are measured to characterize the response of forest ecosystems to experimental treatments. We discuss the general value and limitations of the LSSEs and highlight some possible roles that can be played by the LSSEs in addressing management issues emerging at the beginning of the 21st century. Full Article
as Projecting other public inventories for the 2005 RPA timber assessment update By www.fs.fed.us Published On :: Thu, 16 Aug 2007 09:00:00 PST This study gives an overview of the current inventory status and the projection of future forest inventories on other public timberland. Other public lands are lands administered by state, local, and federal government but excluding National Forest System lands. These projections were used as part of the 2005 USDA Forest Service Resource Planning Act timber assessment update. The projections were made by region and forest type by using the modified Aggregated Timberland Assessment System and the forest inventory data with methods and procedures consistent with the methods used for private and national forest inventory projections. Although the projected inventory volume differs by region, both softwood and hardwood inventories on other public timberlands in the United States are projected to increase over 60 percent during the next 50 years. Forest net growth exceeds harvest in most regions pushing inventory volumes up. The one exception is the Pacific Northwest East (ponderosa pine region) where the softwood inventory is expected to decrease until 2030 owing to lower softwood net growth and then slowly increase. The mature and old mature stands for both softwood and hardwood are projected to increase significantly for all regions especially in the South region where proportion of mature and old mature increases from 9 to 54 percent for softwood and 4 to 55 percent for hardwood. Full Article
as Stereo photo series for quantifying natural fuels Volume X: sagebrush with grass and ponderosa pine-juniper types in central Montana. By www.fs.fed.us Published On :: Mon, 30 Aug 2010 10:00:00 PST Two series of single and stereo photographs display a range of natural conditions and fuel loadings in sagebrush with grass and ponderosa pinejuniper types in central Montana. Each group of photos includes inventory information summarizing vegetation composition, structure, and loading; woody material loading and density by size class; forest floor depth and loading; and various site characteristics. The natural fuels photo series is designed to help land managers appraise fuel and vegetation conditions in natural settings. Full Article
as Potential vegetation hierarchy for the Blue Mountains section of northeastern Oregon, southeastern Washington, and westcentral Idaho By www.fs.fed.us Published On :: Thu, 16 Aug 2007 09:00:00 PST The work described in this report was initiated during the Interior Columbia Basin Ecosystem Management Project (ICBEMP). The ICBEMP produced a broad-scale scientific assessment of ecological, biophysical, social, and economic conditions for the interior Columbia River basin and portions of the Klamath and Great Basins. The broad-scale assessment made extensive use of potential vegetation (PV) information. This report (1) discusses certain concepts and terms as related to PV, (2) describes how a PV framework developed for the broad-scale ICBEMP assessment area was stepped down to the level of a single section in the national hierarchy of terrestrial ecological units, (3) describes how fine-scale potential vegetation types (PVTs) identified for the Blue Mountains section were aggregated into the midscale portion of the PV hierarchy, and (4) describes the PVT composition for each of the midscale hierarchical units (physiognomic class, potential vegetation group, plant association group). Full Article
as Silvicultural research and the evolution of forest practices in the Douglas-fir region By www.fs.fed.us Published On :: Thu, 16 Aug 2007 09:30:00 PST Silvicultural practices in the Douglas-fir region evolved through a combination of formal research, observation, and practical experience of forest managers and silviculturists, and changing economic and social factors. This process began more than a century ago and still continues. It has had a great influence on the economic well-being of the region and on the present characteristics of the region's forests. This long history is unknown to most of the public, and much of it is unfamiliar to many natural resource specialists outside (and even within) the field of silviculture. We trace the history of how we got where we are today and the contribution of silvicultural research to the evolution of forest practices. We give special attention to the large body of information developed in the first half of the past century that is becoming increasingly unfamiliar to both operational foresters and--perhaps more importantly--to those engaged in forestry research. We also discuss some current trends in silviculture and silviculture-related research. Full Article
as Ozone injury in west coast forests: 6 years of monitoring By www.fs.fed.us Published On :: Thu, 16 Aug 2007 09:30:00 PST Six years of monitoring for ozone injury by the Pacific Northwest Research Station Forest Inventory and Analysis Program are reported. The methods used to evaluate injury, compute an injury index, and estimate risk are described. Extensive injury was detected on ozone biomonitoring sites for all years in California, with ponderosa and Jeffrey pines, mugwort, skunkbush, and blue elderberry showing injury. Little or no injury was detected in Oregon and Washington. The relation of observed injury to ambient ozone levels is discussed. The areas with the highest modeled risk of ozone injury are the areas east of Los Angeles, the southern Sierra Nevada, and portions of the central coast. Full Article
as Grass Mountain Research Natural Area: guidebook supplement 32. By www.fs.fed.us Published On :: Mon, 29 Oct 2007 10:15:00 PST This guidebook describes the Grass Mountain Research Natural Area, a 377-ha (931-ac) tract in the Oregon Coast Range. The area supports a grass bald complex surrounded by stands dominated by noble fir (Abies procera) and/or Douglas-fir (Pseudotsuga menziesii) in the overstory, and western hemlock (Tsuga heterophylla) in the understory. The area also contains a small rock garden plant community along high-elevation ridges, and young Douglas-fir forest that originated from a wildfire. Headwaters of high-elevation, Oregon Coast Range streams are surrounded by noble fir forest and add to the site diversity. Full Article
as National forests on the edge: development pressures on America's national forests and grasslands By www.fs.fed.us Published On :: Mon, 25 Oct 2007 13:10:00 PST Many of America's national forests and grasslands--collectively called the National Forest System--face increased risks and alterations from escalating housing development on private rural lands along their boundaries. National forests and grasslands provide critical social, ecological, and economic benefits to the American public. This study projects future housing density increases on private rural lands at three distances--2, 3, and 10 miles--from the external boundaries of all national forests and grasslands across the conterminous United States. Some 21.7 million acres of rural private lands (about 8 percent of all private lands) located within 10 miles of the National Forest System boundaries are projected to undergo increases in housing density by 2030. Nine national forests are projected to experience increased housing density on at least 25 percent of adjacent private lands at one or more of the distances considered. Thirteen national forests and grasslands are each projected to have more than a half-million acres of adjacent private rural lands experience increased housing density. Such development and accompanying landscape fragmentation pose substantial challenges for the management and conservation of the ecosystem services and amenity resources of National Forest System lands, including access by the public. Research such as this can help planners, managers, and communities consider the impacts of local land use decisions. Full Article
as Sociocultural effects of tourism in Hoonah, Alaska By www.fs.fed.us Published On :: Wed, 07 Nov 2007 08:00:00 PST This report examines the growth and development of the tourism industry in Hoonah, Alaska, and its effects on community life and resource use. The report describes the gradual development of tourism in Hoonah and presents resident perceptions of tourism's effect on the natural and social environment. A multisited ethnographic approach was used featuring indepth, open-ended interviews with local residents, tourism providers, business owners, and government officials. Data were analyzed using Ethnograph, a software program used to assist in coding data based on prominent themes. Results indicate that tourism has brought changes to the lives of Hoonah residents, particularly those relying on natural resources for everyday survival. Expansion of nature-based tourism in the area surrounding Hoonah resulted in conflicts between resource users. The growth of the charter fishing fleet led to competition with commercial fishers. Nature tour operators using remote recreation sites experienced conflicts with local hunters and fishers as well as other commercial guides. The development of a cruise ship destination on private land outside of Hoonah led to shifts in use of this historic site by local residents as well as in use of other private lands used for subsistence. Findings may enable Forest Service planners to identify factors involved in the relation between tourism growth and community well-being. It also may assist small southeast Alaska communities in decisionmaking related to tourism development. Full Article
as Growth of Douglas-fir near equipment trails used for commercial thinning in the Oregon Coast Range By www.fs.fed.us Published On :: Fri, 18 Jan 2008 15:08:00 PST Soil disturbance is a visually apparent result of using heavy equipment to harvest trees. Subsequent consequences for growth of remaining trees, however, are variable and seldom quantified. We measured tree growth 7 and 11 years after thinning of trees in four stands of coast Douglas-fir (Pseudotsuga menziesii var. menziesii (Mirb. Franco)) where soil disturbance was limited by using planned skid trails, usually on dry soils. The three younger stands had responded to nitrogen fertilizer in the 4 years before thinning, but only one stand showed continued response in the subsequent 7- or 11-year period after thinning. The most consistent pattern observed was greater growth of residual trees located next to skid trails. The older stand also showed greater growth in trees located next to skid trails, whereas tillage of skid trails failed to benefit growth of nearby residual trees for the first 7 years after tillage. We conclude that traffic that compacted soil only on one side of residual trees did not reduce growth of nearby trees. Full Article
as National Visitor Use Monitoring implementation in Alaska By www.fs.fed.us Published On :: Tue, 19 Feb 2008 11:15:00 PST The USDA Forest Service implemented the National Visitor Use Monitoring (NVUM) program across the entire National Forest System (NFS) in calendar year 2000. The primary objective of the NVUM program is to develop reliable estimates of recreation use on NFS lands via a nationally consistent, statistically valid sampling approach. Secondary objectives of NVUM are to characterize recreation visits, collect data in support of regional economic analyses, and gauge national forest visitor satisfaction. We document and review the round 1 NVUM implementation in the USDA Forest Service Alaska Region (R-10) with examination of the R-10 prework, sample day implementation, survey completion rates, sampling at cabins, boat docks, and air carriers; and the NVUM expansion weights assigned to survey cases. Several opportunities to improve the implementation of the standard NVUM protocols in R-10 are identified. Full Article
as Juvenile tree growth on some volcanic ash soils disturbed by prior forest harvest By www.fs.fed.us Published On :: Tue, 24 Mar 2008 10:00:00 PST The effects of mechanical disturbance from traditional ground-based logging and site preparation on volcanic ash soil and associated tree growth were investigated by using two study approaches in a retrospective study. This research was conducted on volcanic ash soils within previously harvested units in the Blue Mountains of northeast Oregon and southwest Washington. We assessed soil and tree attributes and their association with higher and lower levels of soil disturbance. The two approaches were independent efforts that yielded very different results. Full Article
as Lichen bioindication of biodiversity, air quality, and climate: baseline results from monitoring in Washington, Oregon, and California By www.fs.fed.us Published On :: Thu, 3 Apr 2008 06:31:00 PST Lichens are highly valued ecological indicators known for their sensitivity to a wide variety of environmental stressors like air quality and climate change. This report summarizes baseline results from the U.S. Department of Agriculture, Forest Service, Forest Inventory and Analysis (FIA) Lichen Community Indicator covering the first full cycle of data collection (1998-2001, 2003) for Washington, Oregon, and California. During this period, FIA conducted 972 surveys of epiphytic macrolichen communities for monitoring both spatial and long-term temporal trends in forest health. Major research findings are presented with emphasis on lichen biodiversity as well as bioindication of air quality and climate. Considerable effort is devoted to mapping geographic patterns and defining lichen indicator species suitable for estimating air quality and climate. Full Article
as Forest inventory-based estimation of carbon stocks and flux in California forests in 1990 By www.fs.fed.us Published On :: Mon, 21 Apr 2008 11:20:00 PST Estimates of forest carbon stores and flux for California circa 1990 were modeled from forest inventory data in support of California's legislatively mandated greenhouse gas inventory. Reliable estimates of live-tree carbon stores and flux on timberlands outside of national forest could be calculated from periodic inventory data collected in the 1980s and 1990s; however, estimation of circa 1990 flux on national forests and forests other than timberland was problematic owing to a combination of changing inventory protocols and definitions and the lack of remeasurement data on those land categories. We estimate annual carbon flux on the 7.97 million acres of timberlands outside of national forests (which account for 24 percent of California's forest area and 28 percent of its live tree aboveground biomass) at 2.9 terragrams per year. Full Article
as Evaluation of landscape alternatives for managing oak at Tenalquot Prairie, Washington By www.fs.fed.us Published On :: Thu, 01 May 2008 08:15:00 PST In recent years, interest has increased in restoring Oregon white oak (Quercus garryana Dougl. ex Hook.) and prairie landscapes in the Pacific Northwest, especially where elements of historical plant communities are intact. We evaluated the effect of alternative management scenarios on the extent and condition of Oregon white oak, the extent of prairie, and the harvest and standing volumes of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) within a 2934-ha portion of Fort Lewis, Washington (named the Tenalquot Planning Area for the purpose of the project). A landscape-level analysis of the scenarios was completed using a geographic information system, a forest growth model (ORGANON), and landscape visualization software (EnVision). The scenarios ranged from no active management to restoration of the historical extent of oak and prairies within the planning area. The results indicate that the window of opportunity for restoring oak and prairie landscapes in the Puget Sound lowlands and other regions is small, and aggressive management is needed to maintain or enhance these landscapes. The project demonstrates the value of landscape level analyses and the use of new technologies for conveying the results of alternative management scenarios. Full Article
as A protocol using coho salmon to monitor Tongass National Forest Land and Resource Management Plan standards and guidelines for fish habitat By www.fs.fed.us Published On :: Thu, 22 May 2008 14:00:00 PST We describe a protocol to monitor the effectiveness of the Tongass Land Management Plan (TLMP) management standards for maintaining fish habitat. The protocol uses juvenile coho salmon (Oncorhynchus kisutch) in small tributary streams in forested watersheds. We used a 3-year pilot study to develop detailed methods to estimate juvenile salmonid populations, measure habitat, and quantitatively determine trends in juvenile coho salmon abundance over 10 years. Coho salmon have been shown to be sensitive to habitat alterations, and we use coho salmon parr as the primary indicator in the protocol. A priori criteria for type I and type II error rates, effect size, and sample sizes for the protocol were derived with estimates of variance computed from the 3-year pilot study. The protocol is designed to detect trends in abundance of coho salmon parr, as well as coho salmon fry and Dolly Varden (Salvelinus malma), in small streams managed according to TLMP standards and guidelines and to compare these to trends in unmanaged (old-growth) watersheds. Trends are adjusted to account for statistically significant habitat covariates. This information provides an important element in monitoring land management practices in the Tongass National Forest. The methods we describe may have application to monitoring protocols elsewhere for fish populations and land management practices. Full Article
as A synthesis of biomass utilization for bioenergy production in the Western United States By www.fs.fed.us Published On :: Mon, 16 Jun 2008 09:15:00 PST We examine the use of woody residues, primarily from forest harvesting or wood products manufacturing operations (and to a limited degree from urban wood wastes), as a feedstock for direct-combustion bioenergy systems for electrical or thermal power applications. We examine opportunities for utilizing biomass for energy at several different scales, with an emphasis on larger scale electrical power generation at stand-alone facilities, and on smaller scale facilities (thermal heating only) such as governmental, educational, or other institutional facilities. We then identify west-wide barriers that tend to inhibit bioenergy applications, including accessibility, terrain, harvesting costs, and capital costs. Finally, we evaluate the role of government as a catalyst in stimulating new technologies and new uses of biomass material. Full Article
as Calibration and modification for the Pacific Northwest of the New Zealand Douglas-fir silvicultural growth model By www.fs.fed.us Published On :: Tue, 08 Jul 2008 09:10:00 PST This paper describes a growth model for young plantations of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) growing in the Pacific Northwest. The overall model has three major components. The first is a yield model for diameter and height distributions describing stands prior to pruning or precommercial thinning. The second component is an annual per-acre net increment model adapted from a recent model for Douglas-fir plantations in New Zealand; thinning and pruning are features of the model. The third component is growth equations for cohorts of individual trees; the results from this component are adjusted to match those from the second component. Fitting data are from Stand Management Cooperative experiments, with top heights generally below 75 ft. An intended use of the model is the evaluation of pruning regimes, in conjunction with the ORGANON model for growth at older ages, and TREEVAL model for clear-wood recovery and economic evaluation. Full Article