Treesearch
Displaying 11,701 - 11,710 of 65,188 Publications- This report highlights key findings from data collected by the Forest Inventory and Analysis program across all forest land in the state of Washington from 2002 through 2011, updating previously published findings from data collected up to 2006. We summarize and interpret basic resource information such as forest area, composition, ownership, volume, biomass, and carbon stocks; forest structure and function topics such as biodiversity, forest age, and dead wood; disturbance information such as wildfire, root disease, and invasive plants; and include data on tree growth, mortality, and...AuthorsJustin J. Holgerson, Sharon Stanton, Karen Waddell, Marin Palmer, Olaf Kuegler, Glenn ChristensenKeywordsSourceGen. Tech. Rep. PNW-GTR-962. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 112 p.Year2018
- The socioeconomic benefits of recreational, commercial, and subsistence fishing associated with lands managed by the U.S. Forest Service are substantial and are expected to increase over time. Recreational fishing on national forests and grasslands generate over US$2.2 billion annually through fishing equipment, boats, travel, outfitter and guiding services, fuel, and licenses, which in turn provide critical funding for fisheries habitat management and conservation by federal and state agencies. The sustainable nature of recreational fishing by the public complements the agency’s multiple...AuthorsNathaniel Gillespie, Jonas Epstein, Susan Alexander, Michael Bowker, Ron Medel, Mike Leonard, Andrew ThomsKeywordsSourceFisheries. 43(9): 432-439.Year2018
- The study explores use of the Ecosystem Management Decision Support (EMDS) System to standardize the process of allocating Management Areas for Fire Suppression Support (MASSs) in Catalonia, Spain. MASSs are defined as those areas in the landscape that change fire behavior, reducing the magnitude of the wildfire, and improve significantly fire suppression effectiveness/capacity. Considerations for allocating MASSs include high likelihood of large fires in the vicinity, potential for spread, proximity of the location to valuable resources at risk, proximity to adequate water supply,...AuthorsJosé Ramón Gonzalez-Olabarria, Keith M. Reynolds, Asier Larrañaga, Jordi Garcia-Gonzalo, Eduard Busquets, Miriam PiqueKeywordsSourceForest Ecology and Management. 432: 612-622.Year2018
- Although a natural ecological process, wildfire in unhealthy forests can be uncharacteristically destructive. Fuel treatments—such as thinning, mowing, prescribed fire, or managed wildfire—can help reduce or redistribute the flammable fuels that threaten to carry and intensify fire. Using both field-tested data and computer simulations, Pacific Northwest Research Station scientists are addressing critical questions such as Are we treating enough of the landscape to restore fire-adapted forests? Are fuel treatments effective at changing fire behavior? Together with land managers, fuel...AuthorsRachel White, Morris C. Johnson, Nicole M. Vaillant, Jeremy S. FriedKeywordsSourceScience Update 25. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 15 p.Year2018
- Motivation: The Tundra Trait Team (TTT) database includes field‐based measurements of key traits related to plant form and function at multiple sites across the tundra biome. This dataset can be used to address theoretical questions about plant strategy and trade‐offs, trait–environment relationships and environmental filtering, and trait variation across spatial scales, to validate satellite data, and to inform Earth system model parameters. Main types of variable contained: The database contains 91,970 measurements of 18 plant traits. The most frequently measured traits (> 1,000 observati...AuthorsAnne D. Bjorkman, Isla H. Myers-Smith, Sarah C. Elmendorf, Signe Normand, Haydn J. D. Thomas, Juha M. Alatalo, Heather Alexander, Alba Anadon-Rosell, Sandra Angers-Blondin, Yang Bai, Gaurav Baruah, Mariska te Beest, Logan Berner, Robert G. Björk, Daan Blok, Helge Bruelheide, Agata Buchwal, Allan Buras, Michele Carbognani, Katherine Christie, Laura S. Collier, Elisabeth J. Cooper, J. Hans C. Cornelissen, Katharine J. M. Dickinson, Stefan Dullinger, Bo Elberling, Anu Eskelinen, Bruce C. Forbes, Esther R. Frei, Maitane Iturrate-Garcia, Megan K. Good, Oriol Grau, Peter Green, Michelle Greve, Paul Grogan, Sylvia Haider, Tomáš Hájek, Martin Hallinger, Konsta Happonen, Karen A. Harper, Monique M. P. D. Heijmans, Gregory H. R. Henry, Luise Hermanutz, Rebecca E. Hewitt, Robert D. Hollister, James Hudson, Karl Hülber, Colleen M. Iversen, Francesca Jaroszynska, Borja Jiménez-Alfaro, Jill Johnstone, Rasmus Halfdan Jorgensen, Elina Kaarlejärvi, Rebecca Klady, Jitka Klimešová, Annika Korsten, Sara Kuleza, Aino Kulonen, Laurent J. Lamarque, Trevor Lantz, Amanda Lavalle, Jonas J. Lembrechts, Esther Lévesque, Chelsea J. Little, Miska Luoto, Petr Macek, Michelle C. Mack, Rabia Mathakutha, Anders Michelsen, Ann Milbau, Ulf Molau, John W. Morgan, Martin Alfons Mörsdorf, Jacob Nabe-Nielsen, Sigrid Schøler Nielsen, Josep M. Ninot, Steven F. Oberbauer, Johan Olofsson, Vladimir G. Onipchenko, Alessandro Petraglia, Catherine Pickering, Janet S. Prevey, Christian Rixen, Sabine B. Rumpf, Gabriela Schaepman-Strub, Philipp Semenchuk, Rohan Shetti, Nadejda A. Soudzilovskaia, Marko J. Spasojevic, James David Mervyn Speed, Lorna E. Street, Katharine Suding, Ken D. Tape, Marcello Tomaselli, Andrew Trant, Urs A. Treier, Jean-Pierre Tremblay, Maxime Tremblay, Susanna Venn, Anna-Maria Virkkala, Tage Vowles, Stef Weijers, Martin Wilmking, Sonja Wipf, Tara ZaminKeywordsSourceGlobal Ecology and Biogeography. 27(12): 1402-1411.Year2018
- Background. The post-harvest recovery and sustained productivity of Nothofagus pumilio forests in Tierra del Fuego may be affected by the abundance and composition of ectomycorrhizal fungi (EMF). Timber harvesting alters EMF community structure in many managed forests, but the impacts of harvesting can vary with the management strategy. The implementation of variable retention (VR) management can maintain, increase, or decrease the diversity of many species, but the effects of VR on EMF in the forests of southern Patagonia have not been studied, nor has the role of EMF in the degeneration...AuthorsRebecca E. Hewitt, Donald Lee Taylor, Teresa Hollingsworth, Christopher B. Anderson, Guillermo Martínez PasturKeywordsSourcePeerJ. 6(3): e5008-.Year2018
- Grid-independent rate of spread results from a physics-based simulation are presented. Previously, such a numerical benchmark has been elusive owing to computational restrictions. The grid-converged results are used to systematically construct correlations between the rate of spread (RoS) and both wind speed and grass height, separately. The RoS obtained from the physics-based model is found to be linear with wind speed in the parameter range considered. When wind speed is varied, the physics-based model predicts faster RoS than the Mk III and V (McArthur) models (Noble et al. 1980) but...AuthorsK. A. M. Moinuddin, D. Sutherland, William MellKeywordsSourceInternational Journal of Wildland Fire. 27(12): 800-814.Year2018
- Amenity-rich rural communities attract tourists, retirees, secondhome owners, and others whose values are often assumed to conflict with those of longtime residents. While prior research has examined attitudinal differences across types of residents, questions about the effects of community growth on residents’ attitudes remain unanswered. This study examines whether and how seasonal and permanent residents differ within and across towns experiencing different rates of growth, and the implications of differences for attitudes toward community development and preservation. Results showed...AuthorsMinkyung Park, Monika Derrien, Emilian Geczi, Patricia A. StokowskiKeywordsSourceSociety & Natural Resources. 32(1): 73-92.Year2018
- The Summary for Policymakers of the full Assessment Report on Land Degradation and Restoration by the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES) provides a critical analysis of the state of knowledge regarding the importance, drivers, status, and trends of terrestrial ecosystems. The Report recognizes that combatting land degradation, which is a pervasive, systemic phenomenon occurring in all parts of the world, is an urgent priority in order to protect the biodiversity and ecosystem services that are vital to all life on Earth and to ensure...AuthorsRobert Scholes, Luca Montanarella, Anastasia Brainich, Nichole Barger, Ben ten Brink, Matthew Cantele, Barend Erasmus, Judith Fisher, Toby Gardner, Timothy G. Holland, Florent Kohler, Janne S. Kotiaho, Graham Von Maltitz, Grace Nangendo, Ram Pandit, John A. Parrotta, Matthew D. Potts, Steephen Prince, Mahesh Sankaran, Louise WillemenYear2018
- The Aquatic Conservation Strategy (ACS) is a regional strategy applied to aquatic and riparian ecosystems across the area covered by the Northwest Forest Plan (NWFP, or Plan), encompassing broad landscapes of public lands administered by the U.S. Department of Agriculture Forest Service and the U.S. Department of the Interior Bureau of Land Management (BLM) (USDA and USDI 1994a). The ACS was developed during the analysis (FEMAT 1993) that led to the NWFP, but its foundation was a refinement of earlier strategies: the Scientific Panel on Late-Successional Forest Ecosystems (“The Gang of...AuthorsGordon Reeves, Deanna H. Olson, Steve Wondzell, Pete Bisson, Sean Gordon, Stephanie A. Miller, Jonathan W. Long, Michael FurnissKeywordsSourceIn: Spies, T.A.; Stine, P.A.; Gravenmier, R.; Long, J.W.; Reilly, M.J., tech. coords. 2018. Synthesis of science to inform land management within the Northwest Forest Plan area. Gen. Tech. Rep. PNW-GTR-966. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station: 461-624.Year2018