ask The U.S. glulam beam and lamstock market and implications for Alaska lumber. By www.fs.fed.us Published On :: Mon, 24 Aug 2009 08:00:00 PST In this study, glulam beam manufacturers in the United States and Canada were surveyed regarding their lamstock usage and glulam beam distribution channels. Full Article
ask 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
ask 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
ask 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
ask 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
ask 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
ask 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
ask 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
ask 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
ask 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
ask 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
ask 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
ask 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
ask Timber harvests in Alaska: 1910-2006 By www.fs.fed.us Published On :: Tue, 3 Feb 2009 13:27:00 PST This publication provides estimates of total softwood harvest by owner for Alaska for 1910-2006. This information is a mix of reported and estimated data. These data are being used to develop assumptions needed in forest planning by both public and private forest managers. Full Article
ask Cordwood energy systems for community heating in Alaska--an overview. By www.fs.fed.us Published On :: Tue, 03 Feb 2009 15:50:00 PST Wood has become an important energy alternative in Alaska, particularly in rural areas where liquid fuel costs can be substantial. In some cases, wood fuel is readily available to communities, increasing the attractiveness of wood energy. Wood energy systems in rural Alaska can also lead to employment gains as well as benefits to local cash economies. Many Alaska villages are now considering wood as a fuel source for community heating, several have completed feasibility studies, and others are moving forward with design and construction activities. Cordwood is readily available in many regions of Alaska, although not always in commercial quantities. However, for many small-scale applications, efficient cordwood systems could be a viable energy option. In this paper, we provide a qualitative review of factors such as wood fuel availability, cordwood system size, wood fuel cost, wood quality, labor, fuel drying, and underground piping. Other general observations are noted, based on case studies of operating cordwood systems in Alaska. Full Article
ask An evaluation of the grades and value of red alder lumber in southeast Alaska By www.fs.fed.us Published On :: Tue, 17 Feb 2009 16:40:00 PDT Many stands in southeast Alaska harvested since 1950, especially where there has been a high degree of disturbance of mineral soil, have regenerated to red alder (Alnus rubra Bong.) and are now approaching maturity. The availability of red alder raises questions addressed in this study about the recovery of lumber from this resource. Information in this study was obtained from trees estimated to be 46 years old on a site outside of Ketchikan. Rates of recovery using a thin-kerf portable band mill were higher than those reported by larger production mills in Washington and Oregon. Grade yields of the Alaska material are comparable to those attained in other regions. This study determined that there were no significant differences in material characteristics that would set this Alaska log resource apart from red alder in the other regions of North America. The potential value of the products is sufficient to allow production in Alaska for use in the manufacturing of value-added products within the state or shipment of finished lumber to domestic or export markets. Full Article
ask Adoption of engineered wood products in Alaska By www.fs.fed.us Published On :: Tue, 24 Feb 2009 14:40:00 PST Based on an in-grade testing program, the Ketchikan Wood Technology Center has registered three proprietary grademarks for Alaska species of hemlock (Tsuga heteraphylla (Raf.) Sarg.), yellow-cedar (Chamaecyparis nootkatensis (D. Don) Spach), and spruce (combined Sitka spruce [Picea sitchensis (Bong.) Carr.] and white spruce [Picea glauca (Moench) Voss]). The Ketchikan Wood Technology Center conducted tests to establish glulam beam manufacturing specifications. In conjunction with this program, there is a need to measure the market for glulam beams in Alaska. The purpose of this research was to compare Alaska residential builder adoption rates of glulam beams and other engineered wood products to those of the continental United States. The results showed that a higher percentage of Alaska builders use glulam beams compared with builders in the rest of the United States. Full Article
ask Outdoor recreation in the Pacific Northwest and Alaska: trends in activity participation By www.fs.fed.us Published On :: Tue, 12 May 2009 16:40:00 PDT Population growth in Oregon, Washington, and Alaska is expected to increase demand for outdoor recreation on public land. This trend will be tempered by changes in the sociodemographic composition of the population. Among sociodemographic characteristics, different ages and incomes correspond to different participation rates. Although older Americans are participating more, participation is still lower among this group for active pursuits. Hence, as the population ages, demand for passive activities may increase. Low-income people participate at a much lower rate than higher income people in outdoor recreation, and the growing disparity between the wealthy and poor may create inequities in opportunities for participation. State recreation planning documents for Oregon, Washington, and Alaska have identified this issue as a significant concern for recreation providers. Another important factor in recreation trends in the region is ethnicity: different ethnic groups participate in outdoor recreation at different rates, exhibit some different preferences for specific activities, and use recreation sites in different ways. In Alaska, the number of Asian/Pacific Islanders is expected to quadruple by 2025; in Oregon, the Hispanic population may triple by 2025; and in Washington, both these segments of the population may double. Full Article
ask Cooperative Alaska Forest Inventory By www.fs.fed.us Published On :: Tue, 12 May 2009 16:00:00 PDT The Cooperative Alaska Forest Inventory (CAFI) is a comprehensive database of boreal forest conditions and dynamics in Alaska. The CAFI consists of fieldgathered information from numerous permanent sample plots distributed across interior and south-central Alaska including the Kenai Peninsula. The CAFI currently has 570 permanent sample plots on 190 sites representing a wide variety of growing conditions. New plots are being added to the inventory annually. To date, over 60 percent of the permanent sample plots have been remeasured and approximately 20 percent have been remeasured three times. Repeated periodic inventories on CAFI permanent sample plots provide valuable long-term information for modeling of forest dynamics such as growth and yield. Periodic remeasurements can also be used to test and monitor large-scale environmental and climate change. Full Article
ask Alaska's timber harvest and forest products industry, 2005 By www.fs.fed.us Published On :: Tue, 12 May 2009 16:00:00 PDT This report traces the flow of timber harvested in Alaska during calendar year 2005, describes the composition and operations of the state's primary forest products industry, and quantifies volumes and uses of wood fiber. Historical wood products industry changes are discussed, as well as trends in timber harvest, production, and sales of primary wood products. Full Article
ask Recent Trends in the Asian Forest Products Trade and Their Impact on Alaska -2010. By www.fs.fed.us Published On :: Wed, 21 Jul 2010 09:45:00 PST This paper analyzes patterns of forest products trade between Asia and Alaska. Full Article
ask A survey of sport fish use on the Copper River Delta, Alaska. By www.fs.fed.us Published On :: Thu, 12 Aug 2010 8:30:00 PST Aerial counts, in-person interviews, and mail-in questionnaires were used to survey sport fish use during the coho salmon (Oncorhynchus kisutch Walbaum) season on the Copper River Delta, Alaska from 2002 through 2006. Angler counts provided an index of use on individual streams and were used to develop a spatial database exhibiting patterns of use. In-person interviews and mail-in questionnaires were used to determine the effort, catch, and harvest of coho salmon by both local residents of Cordova and nonresident anglers. Full Article
ask Wood energy for residential heating in Alaska: current conditions, attitudes, and expected use. By www.fs.fed.us Published On :: Tue, 20 Jul 2010 14:10:00 PST This study considered three aspects of residential wood energy use in Alaska: current conditions and fuel consumption, knowledge and attitudes, and future use and conditions. We found that heating oil was the primary fuel for home heating in southeast and interior Alaska, whereas natural gas was used most often in south-central Alaska (Anchorage). Firewood heating played a much more important role as a secondary (vs. primary) heating source in all regions of Alaska. In interior Alaska, there was a somewhat greater interest in the use of wood energy compared to other regions. Likewise, consumption of fossil fuels was considerably greater in interior Alaska. Full Article
ask The density and distribution of Sitka spruce and western hemlock seedling banks in partially harvested stands in southeast Alaska By www.fs.fed.us Published On :: Tue, 24 Aug 2010 13:15:00 PST This study's objective was to document and describe the current seedling bank of Sitka spruce (Picea sitchensis (Bong.) Carr.) and western hemlock (Tsuga heterophylla (Raf.) Sarg.) stands in southeast Alaska that were partially cut between 1900 and 1984. Full Article
ask Forests of southeast and south-central Alaska, 2004–2008: five-year forest inventory and analysis report. By www.fs.fed.us Published On :: Wed, 01 Jun 2011 08:20:00 PST This report highlights key findings from the most recent (2004–2008) data collected by the Forest Inventory and Analysis program across all ownerships in southeast and south-central Alaska. We present basic resource information such as forest area, ownership, volume, biomass, carbon sequestration, growth, and mortality; structure and function topics such as vegetation and lichen diversity and forest age distribution; disturbance topics such as insects and diseases, yellow-cedar decline, fire, and invasive plants; and information about the forest products industry in Alaska, the potential of young growth for timber supply, biofuels, and nontimber forest products. The appendixes describe inventory methods and design in detail and provide summary tables of data and statistical error for the forest characteristics sampled. Full Article
ask Cap and trade: offsets and implications for Alaska By www.fs.fed.us Published On :: Wed, 30 Mar 2011 10:40:00 PST The Environmental Protection Agency (EPA) has formally declared that greenhouse gases (GHG) pose a threat to public health and the environment. This is significant because it gives the executive branch the authority to impose carbon regulations on carbon-emitting entities. United States GHG emissions have increased by approximately 17 percent between 1990 and 2007, and the EPA now has the authority to design regulation to reverse this trend. Full Article
ask Trends in global shipping and the impact on Alaska's forest products By www.fs.fed.us Published On :: Mon 29 Aug 2011 1350:00 PST Traditionally, there has been a strong forest products trade between Alaska and Asia. This trade relationship has developed owing to Alaska's proximity to Asia and, in the past, an abundance of high-quality timber. Although forest products markets in North America remain soft, markets in Asia are growing. However, to benefit from Asia's growing forest products market, it is important to understand the concepts of global shipping including containerization, intermodal transport, non vessel operating common carriers, and freight forwarders. One key development that could have a major impact on Alaska's forest products trade is the opening of the Port of Prince Rupert (British Columbia) in 2007. The Port of Prince Rupert ships lumber, logs, and wood pellets to Asia and is much closer to southeast Alaska than are the ports of Seattle and Tacoma. The Prince Rupert port is also 1 day closer to Asia. Despite Prince Rupert's proximity to Alaska, however, there is still no regularly scheduled barge service between the Port of Prince Rupert and southeast Alaska. Potential connections that may develop are examined in this paper. This paper also examines the changing concepts of global shipping and how they affect Alaska's forest products industry. Full Article
ask Precommercial thinning: implications of early results from the Tongass-Wide Young-Growth Studies experiments for deer habitat in southeast Alaska. By www.fs.fed.us Published On :: Fri, 17 May 2013 13:50:00 PST This report documents the results from the first “5-year” round of understory responses to the Tongass-Wide Young-Growth Studies (TWYGS) treatments, especially in relation to their effects on food resources for black-tailed deer (Odocoileus hemionus sitkensis). Responses of understory vegetation to precommercial silviculture experiments after their first 4 to 8 years posttreatment were analyzed with the Forage Resource Evaluation System for Habitat (FRESH)-Deer model. The studies were conducted in western hemlock (Tsuga heterophylla)-Sitka spruce (Picea sitchensis) young-growth forests in southeast Alaska. All four TWYGS experiments were studied: (I) planting of red alder (Alnus rubra) within 1- to 5-year-old stands; (II) precommercial thinning at narrow and wide spacings (549 and 331 trees per hectare, respectively) in 15- to 25-year-old stands; (III) precommercial thinning at medium spacing (420 trees per hectare) with and without pruning in 25- to 35-yearold stands; and (IV) precommercial thinning at wide spacing (203 trees per hectare) with and without slash treatment versus thinning by girdling in >35-year-old stands. All experiments also included untreated control stands of identical age. FRESHDeer was used to evaluate the implications for deer habitat in terms of forage resources (species-specific biomass, digestible protein, and digestible dry matter) relative to deer metabolic requirements in summer (at two levels of requirements—maintenance only vs. lactation) and in winter (at six levels of snow depth). Full Article
ask 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
ask Managing heart rot in live trees for wildlife habitat in young-growth forests of coastal Alaska By www.fs.fed.us Published On :: Wed, 21 May 2014 9:55:00 PST Stem decays of living trees, known also as heart rots, are essential elements of wildlife habitat, especially for cavity-nesting birds and mammals. Stem decays are common features of old-growth forests of coastal Alaska, but are generally absent in young, managed forests. We offer several strategies for maintaining or restoring fungal stem decay in these managed forests that can be used to enhance specific types of wildlife habitat. Full Article
ask 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
ask 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
ask Greenhouse gas emissions versus forest sequestration in temperate rain forests—a southeast Alaska analysis By www.fs.fed.us Published On :: Thur, 03 Mar 2016 9:55:00 PST Sitka, Alaska, has substantial hydroelectric resources, limited driving distances, and a conservation-minded community, all suggesting strong opportunities for achieving a low community carbon footprint. Full Article
ask 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
ask Case study comparison of two pellet heating facilities in southeastern Alaska 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
ask 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
ask 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
ask 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
ask Life cycle assessment of wood energy for residential heating—opportunities for wood pellet production in southeast Alaska. By www.fs.fed.us Published On :: Tue, 01 Aug 2017 08:00:00 PST Southeast Alaska is a remote area, located approximately 700 miles north of Seattle, Washington. Most of the region’s goods are imported by barge, creating logistical and economic challenges not faced by many other parts of the United States. In this context, we used life cycle assessment (LCA) to evaluate the potential environmental impact on global warming potential (GWP) of converting home heating systems from heating oil to wood pellets in southeast Alaska. Once the current level (status quo) was established, we evaluated imported pellet utilization at 20-, 40- and 100-percent penetration into the residential heating oil markets. We also modeled local production of wood pellets in southeast Alaska, assuming a 20-percent penetration. Our research found that reductions in GWP resulting from the conversion to wood pellets ranged from 10 to 51 percent, with the greatest reductions being associated with the highest levels of imported pellets. The scenario of producing wood pellets in southeast Alaska to meet local needs had a reduction in GWP of 14 percent (versus the status quo). Full Article
ask 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
ask 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
ask Field Survey of Growth and Colonization of Nonnative Trees On Mainland Alaska By www.fs.fed.us Published On :: Mon, 17 Apr 2006 15:25:36 PST Six of nine nonnative boreal conifers in three genera (Abies, Larix, and Pinus) regenerated in 11 to 31 years after they were introduced to mainland Alaska. Lodgepole pine (Pinus contorta var. latifolia Engel.) and the Siberian larches (Larix sibirica Ledeb. and L. sukaczewii N. Dyl.) were the most widely introduced species and will likely be the first nonnative conifers to naturalize. Siberian larch grew up to six times more stem volume than white spruce in the first 40 years on upland sites, but was susceptible to the larch sawfly and a blue stain pathogen carried by bark beetles. On productive sites, lodgepole pine appeared to grow more stem wood than white spruce for about 35 years after planting. Snowshoe hares and moose were the most serious pests of the nonnative conifers. Balsam fir (Abies balsamea (L.) Mill.) was the only species to regenerate in an established moss understory. Growth and age relationships were negative for all adequately sampled nonnative conifers and positive for native white spruce (Picea glauca (Moench) Voss). Data were insufficient to assess niche availability for commercial-use of productive nonnative conifers in mixed stands in Alaska. Survey results indicate that introduction and naturalization of noninvasive tree species may improve the diversity, stability, and productivity of managed forest ecosystems. Full Article
ask Masked Singer costume designer makes PPE for NHS - and you can help By www.chroniclelive.co.uk Published On :: Wed, 6 May 2020 10:19:35 +0000 Tim Simpson designed disguises for the hit ITV show, now he is part of a network of 8,000 people making coronavirus pandemic protective clothing Full Article What's On
ask Life's virtual chat asks will we return to being hypocrites after lockdown? By www.chroniclelive.co.uk Published On :: Thu, 7 May 2020 18:38:41 +0000 Life Science Centre in Newcastle hosts challenging debate and here's how to join its online audience for free Full Article What's On
ask WIOE-A/Fort Wayne Asks For FCC OK To Test All-Digital Operation; Maryland Translator, Alaska AM-Translator Combo Sold By www.allaccess.com Published On :: Fri, 08 May 2020 06:26:45 -0700 Another AM station is proposing to run testing of all-digital broadcasting, with BRIAN R. WALSH filing an STA request to operate Oldies WIOE-A/FORT WAYNE in full-time HD RADIO MA3 mode with … more Full Article
ask Public transport users asked to consider wearing face masks By www.belfastlive.co.uk Published On :: Fri, 8 May 2020 10:34:19 +0000 Staff will now be wearing masks and face shields Full Article Belfast News
ask WTLC/Indianapolis Asks FCC For OK To Test All-Digital AM Multicast By www.allaccess.com Published On :: Tue, 05 May 2020 05:19:48 -0700 RADIO ONE OF INDIANA, LLC has applied for experimental authority to operate Urban AC WTLC-A/INDIANAPOLIS in all-digital mode for one year beginning on or before JUNE 1st. The station wants to … more Full Article
ask COVID-19: Wear A Mask? Don't Wear A Mask? What Is Your Station Doing To Be Part Of The Conversation As America Begins To Reopen? By www.allaccess.com Published On :: Fri, 08 May 2020 01:20:01 -0700 As AMERICA opens up again, tensions are flaring about things as simple as wearing a mask to protect others and themselves. Is your radio station doing all it can to keep your audience up to … more Full Article
ask COVID-19 has unmasked significant health disparities in the U.S.; essay on behalf of the Association of Black Cardiologists suggests solutions By newsroom.heart.org Published On :: Mon, 04 May 2020 19:03:45 GMT Full Article
ask The American Heart Association asks your help to support the 120M people in the U.S. living with cardiovascular disease who may be at higher risk of complications from COVID-19 By newsroom.heart.org Published On :: Mon, 04 May 2020 17:30:00 GMT DALLAS, May 4, 2020 — Tomorrow, on #GivingTuesdayNow, a global day of philanthropic action to address the COVID-19 pandemic, the American Heart Association – the leading global public health organization devoted to a world of longer healthier lives – is... Full Article