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- We conducted a census of all facilities in California that purchase roundwood as well as facilities that purchase residuals from roundwood users. We also collected data from facilities in surrounding states that purchase roundwood from California. We asked facilities about their mill characteristics, employment, inputs, outputs, residual production and disposition, and sales values. In total, we identified 72 facilities in California, accounting for more than 1.6 billion board feet (BBF) Scribner of timber harvest, nearly 2.4 BBF Scribner of lumber and 2.1 million bone-dry units of mill...AuthorsSamuel G. Scott, Helena F. Murray, Lucas P. Koch, Thale Dillon, Todd A. Morgan, Glenn ChristensenSourceGen. Tech. Rep. PNW-GTR-1034. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 20 p.Year2025
- California forest land managers seek current information about tree utilization and the volume of merchantable bole wood residue produced by commercial timber harvesting. To address this need, University of Montana, Bureau of Business and Economic Research analysts investigated timber harvest utilization at active logging sites in California from 2018 through 2022. This research characterized current tree utilization, logging operations, and woody biomass left onsite after harvest. Study results were used to compute state-level utilization factors, which indicated that in California, for...AuthorsEric A. Simmons, Lucas P. Koch, Todd A. Morgan, Erik C. Berg, Glenn ChristensenKeywordsSourceResour. Bull. PNW-RB-273. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 23 p. (Online only).Year2025
- In 2016, the U.S. Department of Agriculture, Forest Service, Forest Inventory and Analysis program collected forest and tree measurements from 149 plots in Yap, Chuuk, Pohnpei, and Kosrae states of the Federated States of Micronesia (FSM). Of these, 78 were remeasured plots first established in 2005, and 71 were new plots that were established to meet the Micronesia Challenge, a regional conservation initiative. We recorded 131 tree species and 280 dominant vascular plant species, including 18 invasive plant species. Invasive plant species were present in half of FSM forest area, and the...AuthorsJulian Dendy, Olaf Kuegler, Ashley Lehman, Wendolin Roseo Marquez, Marlyter SilbanuzKeywordsSourceGen. Tech. Rep. PNW-GTR-1035. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 64 p.Year2025
- In 2018, the U.S. Department of Agriculture, Forest Service, Forest Inventory and Analysis program collected forest and tree measurements from 71 plots on 13 atolls and one island (Mejit) of the Republic of the Marshall Islands (RMI). Of these, 44 were remeasured plots first established in 2008, and 27 were newly established plots including 17 plots established in cooperation with the Micronesia Challenge program. We recorded a total of 20 tree species and 53 dominant vascular plant species, including three invasive plant species. We inventoried four forest communities (lowland rainforest,...AuthorsJulian Dendy, Olaf Kuegler, Ashley Lehman, Wendolin Roseo. MarquezKeywordsSourcePNW-GTR-1036. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 39 p.Year2025
- We conducted a census of the 2020 Washington forest products industry. We asked any facility that purchased roundwood or purchased residuals from roundwood users about their mill characteristics, employment, inputs, outputs, residual production and disposition, and sales value. We also collected data from facilities in surrounding states that purchased roundwood from Washington. We identified 83 primary processing facilities, nearly 3 billion board feet Scribner of timber harvest, and more than 4 billion bone-dry units of generated residuals. We compared the census results to similar...AuthorsSamuel G. Scott, Lucas P. Koch, Eric A. Simmons, Todd A. Morgan, Thale Dillon, Glenn ChristensenSourceGen. Tech. Rep. PNW-GTR-1032. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 21 p.Year2025
- While there is near unanimous agreement that for tourism to be considered sustainable, residents need to be empowered, few researchers have asked residents which dimensions of empowerment should be prioritized. This research seeks to fill this gap and give residents a voice in sharing their empowerment priorities by conducting an Importance Performance Analysis using the Resident Empowerment through Tourism Scale within the nature-based tourism destination of Brevard, located in Transylvania County, NC, USA. Results found residents to be generally apathetic towards empowerment, with...AuthorsB. Bynum Boley, Chase Perren, Eric M. White, Gary T. GreenKeywordsSourceJournal of Destination Marketing & Management. 37(4): 101017.Year2025
- Tree spacing during reforestation is a critical decision that influences the trajectory and rate of stand development over time, but there is limited quantification of responses at meaningful time scales for management. Here we report on ∼40 year response of coast Douglas-fir (DF, Pseudotsuga menziesii var. menziesii), noble fir (NF, Abies procera) and western white pine (WWP, Pinus monticola) to five or six spacing treatments that ranged from 1 to 6 m in the western Cascades of Washington, USA. Spacing effects were tested separately for each species in completely randomized designs...AuthorsRobert A. Slesak, Michelle Agne, Connie Harrington, Matthew PowersKeywordsSourceForest Ecology and Management. 586(3): 122724.Year2025
- Recent climate and disturbance conditions in Western U.S. forests have led to significant reforestation needs, necessitating the development of climate-informed management strategies. Promising adaptation strategies include assisted population migration, the movement of seed sources or populations to new locations within the historical species range, combined with silvicultural establishment practices that can improve short-term seedling survival and longer term stand resilience to future climate. Presently, there are challenges to the operational use of assisted population migration and...AuthorsMichelle C. Agne, Robert A. Slesak, Laura Gonzalez Mantecon, Jessica W. Wright, Scott E. Kolpak, Erin Baumgart, Andrew D. Bower, Robyn Darbyshire, Claire Ellwanger, Vicky J. Erickson, Arnaldo R. Ferreria, Christopher Looney, Beth Roskilly, Joseph W. SherlockKeywordsSourceGen Tech. Rep. PNW-GTR-1031. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 103 p. (Online Only)Year2025
- Multiple studies have found that exposure to greenspace during pregnancy is associated with increased birthweight (Hu et al., 2021) and a reduced probability of a small-for-gestational-age birth. However, because exposure to greenspace is associated with demographic correlates of health, studies may suffer from residual confounding. In addition, results may be influenced by the self-selection of healthier women into greener neighborhoods. We address these limitations by using the number of trees planted around maternal address as a novel exposure metric. Compared to existing tree cover,...AuthorsGeoffrey Donovan, Jeffrey P. Prestemon, Abigail Kaminski, Yvonne L. MichaelKeywordsSourceScience of The Total Environment. 975(150): 179229.Year2025
- The protection of headwater streams faces increasing challenges, exemplified by limited global recognition of headwater contributions to watershed resiliency and a recent US Supreme Court decision limiting federal safeguards. Despite accounting for ~77% of global river networks, the lack of adequate headwaters protections is caused, in part, by limited information on their extent and functions—in particular, their flow regimes, which form the foundation for decision-making regarding their protection. Yet, headwater streamflow is challenging to comprehensively measure and model; it is...AuthorsHeather E. Golden, Jay R. Christensen, Hilary K. McMillan, Christa A. Kelleher, Charles R. Lane, Admin Husic, Li Li, Adam S. Ward, John Hammond, Erin C. Seybold, Kristin L. Jaeger, Margaret Zimmer, Roy Sando, C. Nathan Jones, Catalina Segura, D. Tyler Mahoney, Adam N. Price, Frederick ChengKeywordsSourceNature Water. 3(1): 16-26.Year2025