Treesearch
Displaying 6,311 - 6,320 of 65,173 Publications- This report highlights the benefits of tropical research in wood durability, preservation, and related fields. The Forest Products Laboratory (FPL) has a long tradition of conducting tests in the tropics around the world and recognizes the benefits they present. Research needs are also discussed, and research partners are identified. The appendixes summarize activities during the 2019 research summit in Panama and Suriname in which FPL and Michigan Technological University (MTU) participated. In late 2017, Department of Defense (DOD) contacted FPL and MTU to assist in durability evaluations...AuthorsGrant T. Kirker, Xiping Wang, Christopher Adam Senalik, Andrew Storer, Xinfeng Xie, Nathan Kamprath, Keith York, Robert J. RossSourceFS Gen. Tech. Rep.Year2022
- In ecogeomorphic systems, such as beach-dune habitats, complex couplings exist between geomorphology and ecology. Abiotic conditions influence vegetation growth and distribution while vegetation imposes a geomorphic feedback, impacting topography. Communities affect storm response by impacting pre-storm state, post-storm recovery, and landscape evolution. Despite their importance, beach-dune and other ecogeomorphic land-sea systems are deteriorating with increased anthropogenic modification and amplified natural disaster impact linked to climate change. A structured approach is needed to...AuthorsBianca R. Charbonneau, Adam Duarte, Todd M. Swannack, Bradley D. Johnson, Candice D. PiercyKeywordsSourceGeomorphology. 398(2): 108037.Year2022
- Red bay [Persea borbonia (L.) Spreng.] and swamp bay [Persea palustris (Raf.) Sarg.] are aromatic, broadleaved, evergreen tree species native to the southeastern Atlantic Coastal Plain of the United States. Confusion exists over whether red bay and swamp bay should be considered separate species; nonetheless, certain physical and chemical characteristics, as well as associated flora and soils, are commonly used to distinguish the species. Both species flower in late spring and produce dark blue drupes in the fall. They are highly tolerant of shade, commonly occurring as understory trees...AuthorsTimothy M. Shearman, Geoff G. Wang, Albert (Bud) E. MayfieldKeywordsSourceGen. Tech. Rep. SRS-265 Asheville, NC: U.S. Department of Agriculture Forest Service, Southern Research Station.Year2022
- Tree fecundity and recruitment have not yet been quantified at scales needed to anticipate biogeographic shifts in response to climate change. By separating their responses, this study shows coherence across species and communities, offering the strongest support to date that migration is in progress with regional limitations on rates. The southeastern continent emerges as a fecundity hotspot, but it is situated south of population centers where high seed production could contribute to poleward population spread. By contrast, seedling success is highest in the West and North, serving to...AuthorsShubhi Sharma, Robert Andrus, Yves Bergeron, Michal Bogdziewicz, Don C. Bragg, Dale Brockway, Natalie L. Cleavitt, Benoit Courbaud, Adrian J. Das, Michael Dietze, Timothy J. Fahey, Jerry F. Franklin, Gregory S. Gilbert, Cathryn H. Greenberg, Qinfeng Guo, Janneke Hille Ris Lambers, Ines Ibanez, Jill F. Johnstone, Christopher L. Kilner, Johannes M. H. Knops, Walter D. Koenig, Georges Kunstler, Jalene M. LaMontagne, Diana Macias, Emily Moran, Jonathan A. Myers, Robert Parmenter, Ian S. Pearse, Renata Poulton-Kamakura, Miranda D. Redmond, Chantal D. Reid, Kyle C. Rodman, C. Lane Scher, William H. Schlesinger, Michael A. Steele, Nathan L. Stephenson, Jennifer J. Swenson, Margaret Swift, Thomas T. Veblen, Amy V Whipple, Thomas G. Whitham, Andreas P. Wion, Christopher W. W. Woodall, Roman Zlotin, James S. ClarkSourceProceedings of the National Academy of SciencesYear2022
- Cross-laminated timber (CLT) used in the U.S. is mainly imported from abroad. In the existing literature, however, there are data on domestic transportation, but little understanding exists about the environmental impacts from the CLT import. Most studies use travel distances to the site based on domestic supply origins. The new Adohi Hall building at the University of Arkansas campus, Fayetteville, AR, presents the opportunity to address the multimodal transportation with overseas origin, and to use real data gathered from transporters and manufacturers. The comparison targets the...AuthorsMahboobeh Hemmati, Tahar Messadi, Hongmei GuKeywordsSourceSustainabilityYear2022
- All 50 states offer preferential property tax programs that lower the taxes paid on enrolled agricultural and/or forest lands. While agroforestry is a land use that combines elements of both agriculture and forestry, eligibility criteria and other rules and regulations may prevent landowners from enrolling agroforestry practices in one or more of the agricultural and forestry tax programs. This pilot scale study developed conceptual and methodological frameworks to identify the current barriers to and opportunities in preferential tax policies applicable to agroforestry practices. We...AuthorsStephanie Chizmar, Rajan Parajuli, Gregory E. Frey, Robert E. Bardon, Robert Andrew Branan, Katherine MacFarland, Matthew M. Smith, Lord AmeyawSourceTrees, Forests and PeopleYear2022
- AuthorsMatthew M. Smith, Gary Bentrup, Todd Kellerman, Katherine MacFarland, Richard Straight, Lord Ameyaw, Susan M. SteinKeywordsSourceAgriculture, Ecosystems & EnvironmentYear2022
Treading water: Conservation of headwater-stream associated amphibians in Northwestern North America
Headwater streams of the Pacific Northwest of North America are home to 52 amphibian species, spanning a diversity of taxa and life histories. Headwater stream-associated amphibians occur both within coldwater-stream channels and throughout adjacent riparian habitat, reflective of the important role of old-growth forests in providing cool, moist microclimates for these sensitive species. Forests of the Pacific Northwest have undergone substantial change over the last century, due to a legacy of resource extraction and ever-evolving forest management practices, as well as climate change....AuthorsLindsey L. Thurman, Christopher D. Cousins, Sky TC. Button, Tiffany S. Garcia, Alysha L. Henderson, Deanna H. Olson, Jonah Piovia-ScottKeywordsSourceIn: DellaSala, Dominick A.; Goldstein, Michael I., eds. Imperiled: The Encyclopedia of Conservation. Elsevier. 2: 499-513.Year2022- There is a growing interest and investment in restoring riparian areas in the Pacific Northwest to protect biodiversity and water quality, and to restore quality habitat for threatened fish species. However, these management activities change vegetation conditions and potentially impact terrestrial species in these ecosystems. Our objective was to estimate associations between small mammals and 4 broad cover types—conifers, shrubs, grasses, and forbs—in riparian areas within the Blue Mountains of northeast Oregon, USA. We estimated abundances and spatial association for 10 small mammal...AuthorsLindsay S. Millward, Todd M. Wilson, Matt J. Weldy, Mary M. Rowland, Adam Duarte, Damon B. Lesmeister, William J. RippleKeywordsSourceForest Ecology and Management. 505(2): 119899.Year2022
- Despite the ecological and socioeconomic impacts of wildfires, little attention has been paid to the spatiotemporal patterns of nighttime fire activity across the conterminous United States (CONUS). Daytime fire radiative power (FRP) detected by the Moderate Resolution Imaging Spectroradiometer (MODIS) was nearly evenly split (54% vs. 46%) between inside and outside wildfires from 2003 to 2020. In contrast, 94% of nighttime FRP was detected within wildfires, of which 95% was detected within large wildfires (> 2023 ha). Nighttime proportions (i.e., the proportion of total summed FRP...AuthorsPatrick Freeborn, W. Matt Jolly, Mark A. Cochrane, Gareth RobertsSourceRemote Sensing of Environment. 268: 112777.Year2022