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Displaying 1 - 10 of 63,810 Publications- Nepal’s community forestry (CF) program, a globally recognized model of participatory forest management, relies on voluntary local leaders to guide forest management and governance decisions. Sustaining voluntary leadership has become increasingly challenging because of outmigration, declining forest dependence, and growing urban influence on rural livelihoods. In this study, we explore the values and motivations of existing leaders of community forest user groups (CFUGs), which underpin the leadership characteristics in sustaining these local institutions. We surveyed 144 leaders of 49 CFUGs ...AuthorsPrabin Bhusal, Rajan Parajuli, Erin O. Sills, Conghe Song, Gregory E. FreyYear2025
- The ecosystem services people associate with forests can be economic, environmental, social, and spiritual. Factors including regions, demographics, and changing environmental attitudes may influence the different ecosystem services that forests support (Brown and Reed 2000). This indicator report provides insight into the importance of forests to private woodland owners and visitors to U.S. Department of Agriculture (USDA), Forest Service national forests.AuthorsMichelle J. Thompson, Sonia R. Bruck, Stephanie J. Chizmar, Jesse D. Henderson, Gregory E. FreyYear2025
- This indicator reports value of capital investment and annual expenditure in forest management, wood and nonwood product industries, forest-based environmental services, recreation, and tourism. Investment in the forest sector, both in long-term capital projects and annual operating costs, is essential to sustain and improve the many ecosystem services that are derived from forests. The evaluation of capital investment indicators provides insights into the long-term and yearly expenses aimed at improving forest management, forest-related businesses, and the skills and knowledge of those worki...AuthorsJaana Korhonen, Gregory FreyYear2025
- In forest inventories, trees are often singled out to represent forest attributes and other environmental conditions. These “indicator” trees may be selected to estimate site level attributes, including site productivity, stand age, climate history, and growth rates. Here, we use data from the nationwide forest inventory (NFI) in the United States (US) to assess how indicator tree attributes compare to tally tree attributes across space and through time. First, we use contemporary field guides and NFI data to describe indicator tree selection criteria across regions of the US. Second, we compa...AuthorsCourtney L. Giebink, Kelly A. Heilman, Sean M.P. Cahoon, Grant M. DomkeKeywordsSourceElsevier B.VYear2025
- Deadwood is a critical component of forest ecosystems, storing nutrients for plants and serving as a carbon store and emission source. Climate change influences forest ecosystem dynamics with the potential for deadwood to emit carbon more rapidly due to accelerated decay and increased wildfires and increased inputs via mass forest mortality and disturbance events. To objectively inform our understanding of wildfires and associated carbon emissions, this study estimates the carbon content of dead fine woody debris (FWD) using multimodal data, such as Landsat-8 multispectral imagery, Sentinel-1 ...AuthorsRiyaaz U. Shaik, Mohamad Alipour, Eric Rowell, Adam Watts, Christopher Woodall, Ertugrul TacirogluKeywordsSourceIEEE Geoscience and Remote Sensing Letters (IEEE)Year2025
- The USDA Forest Service Forest Inventory and Analysis (FIA) program, as mandated by US Congressional legislation, provides statistically valid and unbiased estimates of forest characteristics across the United States and territories, which underlie a variety of analyses supporting ecological, economic, and policy needs across spatial scales. New allometric models have been implemented in the FIA program database based on a recent National Scale Volume and Biomass (NSVB) study for updated tree biomass and carbon estimates. Moreover, newer soil and litter carbon models with corresponding new est...AuthorsHéctor I. Restrepo, Holly L. Munro, Stephen P. Prisley, Erik Schilling, Philip J. Radtke, Renate Bush, John Coulston, Christopher W. WoodallKeywordsSourceElsevier B.VYear2025
- In late June 2021, multiple days of record-breaking heat caused an unprecedented amount of foliage death in the forests of the Pacific Northwest, USA. Portions of tree canopies with healthy green foliage prior to the heat changed to red or orange shortly after the event. The change in foliage color could be readily seen in satellite imagery and was corroborated as foliar death (heat scorch) by aerial surveys and extensive observations on the ground. To better understand the patterns and processes driving foliar death, we used satellite imagery to identify 293,546 ha of forest, or ~4.7% of fore...AuthorsAdam Sibley, Christopher Still, Matthew Gregory, Constance Harrington, David Shaw, Nina Ferrari, Alex Dye, Mark Schulze, Glenn Howe, David E. Rupp, Christopher Daly, Daniel DePinte, Cameron E. Naficy, Chaney Hart, David M. BellKeywordsSourceGlobal Change Biology. 31(11): e70571.Year2025
- The critical role of forest carbon modeling in climate change mitigation and adaptation has brought it to the forefront of natural climate solutions (NCS) discussions. To facilitate scientific inquiry related to forest carbon and its climate change mitigation potential, we synthesize current challenges and recommend strategic advancements for quantifying and projecting forest carbon dynamics. A national collaborative effort, engaging stakeholders from academia, industry, and policy sectors, has identified key six areas for scientific development, including tree growth, mortality, and regenerat...AuthorsHolly L. Munro, Christopher W. Woodall, William R. L. Anderegg, Colin M. Beier, Bronson P. Bullock, Kendall DeLyser, David D. Diaz, Bianca N.I. Eskelson, Margaret E. K. Evans, Jeff Atkins, John D. Foppert, Bryan C. Foster, Thomas R. Fox, Jereme M. Frank, Robert E. Froese, George C. Gaines III Gaines, Peter Gould, Temesgen Hailemariam, Edie Sonne Hall, Katherine A. Heckman, Eileen Helmer, J. Aaron Hogan, Coeli M. Hoover Hoover, Stephen M. Kinane, David W. MacFarlane, Lara Murray, Gregory Paradis, Krishna P. Poudel, Stephen P. Prisley, James L. Rakestraw, Hector Restrepo, Ajay Sharma, John D. Shaw, Erin Smith-Mateja, Curtis L. VanderSchaaf, Can Vatandaslar, Aaron R. Weiskittel, Sheng-I. YangKeywordsSourceJournal of ForestryYear2025
- Flood damage to road-stream crossings presents a safety hazard and is expensive to repair. While crossing structure design has progressed over time to address flood resilience, little research has been conducted to evaluate the performance of culverts and bridges after floods. In 2016, an extreme flood in northwestern Wisconsin created an opportunity to address this knowledge gap.AuthorsDeahn Donner, Dale Higgins, Jenna ZukswertKeywordsSourceFSYear2025
- The southwestern pine beetle, Dendroctonus barberi Hopkins (Coleoptera: Curculionidae: Scolytinae), is a significant pest of ponderosa pine (Pinus ponderosa) in the Southwestern United States. Pinyon pine (Pinus edulis) and Douglas-fir (Pseudotsuga menziesii var. glauca) have also been recorded as occasional hosts. The southwestern pine beetle occurs in Arizona, Colorado, New Mexico, Nevada, Utah, and Texas, and in the Mexican States of Chihuahua, Coahuila, Durango, Nuevo Leon, and Tamaulipas. Its largest impacts occur in Arizona, New Mexico, and Texas. Southwestern pine beetles play a vital ...AuthorsDemian F. Gomez, Jackson P. Audley, Christopher J. FettigKeywordsSourceForest Insect and Disease Leaflet No 192.Year2025