Treesearch
Displaying 2,961 - 2,970 of 65,140 Publications- A 60-year precipitation and streamflow record from the Caspar Creek Experimental Watersheds in northern California was used to explore the propagation of meteorological drought to hydrological drought. Standardized precipitation and runoff indices were calculated for the two forested catchments using integration periods of 12, 24, and 36 months. The resulting time series were used to define three severe drought events (1976–1977, 2013–2014, and 2020–2022). The earliest drought followed the 1971–1973 harvest of the 417 ha South Fork (SF) watershed, a second followed the 1989–1992 harvest of...AuthorsElizabeth Keppeler, Joseph Wagenbrenner, Salli Dymond, David DralleKeywordsSourceJAWRA Journal of the American Water Resources Association. 60(5): 928-952.Year2024
- Deforestation and natural resource extraction are well-known threats to biodiversity conservation, environmental justice, livelihoods, ecosystem services and can even result in crimes to, and harassment of, environmental defenders. Such punitive actions against environmental defenders can influence both economic development and forest conservation efforts. Yet, little is known about this nexus and the complex relationships between environmental impacts, such as deforestation, and environmental crimes across space and time in many regions such as Latin America. We explored these complex...AuthorsNicola Clerici, Christina Staudhammer, Francisco J. EscobedoKeywordsSourceTrees, Forests and People. 17(6630): 100610.Year2024
- Herbivorous insects alter biogeochemical cycling within forests, but the magnitude of these impacts, their global variation, and drivers of this variation remain poorly understood. To address this knowledge gap and help improve biogeochemical models, we established a global network of 74 plots within 40 mature, undisturbed broadleaved forests. We analyzed freshly senesced and green leaves for carbon, nitrogen, phosphorus and silica concentrations, foliar production and herbivory, and stand-level nutrient fluxes. We show more nutrient release by insect herbivores at non-outbreak levels in...AuthorsBernice C. Hwang, Christian P. Giardina, Stephen Adu-Bredu, M. Noelia Barrios-Garcia, Julio C. Calvo-Alvarado, Greta C. Dargie, Haoyu Diao, Virginia G. Duboscq-Carra, Andreas Hemp, Claudia Hemp, Walter Huaraca Huasco, Aleksandr V Ivanov, Nels G. Johnson, Dries P. J. Kuijper, Simon L. Lewis, Paulina Lobos-Catalán, Yadvinder Malhi, Andrew R. Marshall, Levan Mumladze, Alain Senghor K. Ngute, Ana C. Palma, Ion Catalin Petritan, Mariano A. Rordriguez-Cabal, Ifo A. Suspense, Asiia Zagidullina, Tommi Andersson, Darcy F. Galiano-Cabrera, Mylthon Jiménez-Castillo, Marcin Churski, Shelley A. Gage, Nina Filippova, Kainana S. Francisco, Morgan Gaglianese-Woody, Giorgi Iankoshvili, Mgeta Adidas Kaswamila, Herman Lyatuu, Y. E. Mampouya Wenina, Brayan Materu, M. Mbemba, Ruslan Moritz, Karma Orang, Sergey Plyusnin, Beisit L. Puma Vilca, Maria Rodríguez-Solís, Pavel Šamonil, Kinga M. Stępniak, Seana K. Walsh, Han Xu, Daniel B. MetcalfeSourceNature Communications. 15(1): 142.Year2024
- The US faces multiple challenges in facilitating the safe, effective, and proactive use of fire as a landscape management tool. This intentional fire use exposes deeply ingrained communication challenges and distinct but overlapping strategies of prescribed fire, cultural burning, and managed wildfire. We argue for a new conceptual model that is organized around ecological conditions, capacity to act, and motivation to use fire and can integrate and expand intentional fire use as a tool. This result emerges from more considered collaboration and communication of values and needs to address...AuthorsAaron Russell, Nina Fontana, Tyler Hoecker, Alyssa Kamanu, Reetam Majumder, Jilmarie Stephens, Adam M. Young, Amanda E. Cravens, Christian P. Giardina, Kevin Hiers, Jeremy Littell, Adam TerandoKeywordsSourceCell Reports Sustainability. 1(6): 100125.Year2024
- Forests play a critical role in mitigating climate change by sequestering carbon dioxide (CO2) from the atmosphere. A new study led by Yude Pan, research scientist with the U.S. Department of Agriculture, Forest Service, Northern Research Station, provides a unique perspective and a long-term, ground-based benchmark on the recent magnitude, trends, drivers, and locations of Earth’s critical forest carbon sinks. The study compiles and analyzes data from extensive ground-based forest inventories and ecological studies as well as commonly used forest area estimates based on remote sensings in...AuthorsAndrea Brandon, Yude PanKeywordsSourceFSYear2024
- Elevation, soil composition, and depressions can influence the distribution of water belowground and its availability to tree roots. During the summer months when precipitation levels are at their lowest, this belowground soil moisture can stave off the effects of drought stress on trees. Although lack of soil moisture is the most well-known driver of drought stress, it may not be the only driver. Working in the H.J. Andrews Experimental Forest in western Oregon, researchers investigated whether a lack of soil moisture or warm dry air is the primary cause of the drought stress exhibited by...AuthorsAndrea Watts, Steve Wondzell, Karla Jarecke, Kevin BladonKeywordsSourceScience Findings 268. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 6 p.Year2024
- What are the market conditions for woodworkers involved in the construction-based sectors and what are some of the investments being planned to improve their capabilities? For perspective, the total value of private construction (residential and nonresidential) put in place in the United States was more than $1.5 trillion dollars in 2023 ($1,541,063 million), up 4.7% from 2022 based on U.S. Census Bureau figures. This increase was driven largely by increased spending on nonresidential construction. Spending decreased for single-family housing (-13.5%) and residential improvements (-4.6%)...AuthorsUrs Buehlmann, Matt Bumgardner, Karen KoenigKeywordsSourceMagazineYear2024
- The uptake of carbon dioxide (CO2) by terrestrial ecosystems is critical for moderating climate change. To provide a ground-based long-term assessment of the contribution of forests to terrestrial CO2 uptake, we synthesized in situ forest data from boreal, temperate and tropical biomes spanning three decades. We found that the carbon sink in global forests was steady, at 3.6 ± 0.4 Pg C yr−1 in the 1990s and 2000s, and 3.5 ± 0.4 Pg C yr−1 in the 2010s. Despite this global stability, our analysis revealed some major biome-level changes. Carbon sinks have increased in temperate (+30 ± 5%) and...AuthorsYude Pan, Richard Birdsey, Oliver L. Phillips, Richard A. Houghton, Jingyun Fang, Pekka E. Kauppi, Heather Keith, Werner A. Kurz, Akihiko Ito, Simon L. Lewis, Gert-Jan Nabuurs, Anatoly Shvidenko, Shoji Hashimoto, Bas Lerink, Dmitry Schepaschenko, Andrea Castanho, Daniel MurdiyarsoKeywordsSourceNatureYear2024
- Every 10 years the Forest Service presents an assessment of the nation’s forests and rangelands. The 2020 Resources Planning Act Assessment (RPA Assessment) looks at historical data trends and projects the availability and condition of renewable resources across the nation’s forests and rangelands 50 years into the future. Mandated by the 1974 Forest and Rangeland Renewable Resources Planning Act, it is the sixth report in almost 50 years. Scientists from USDA Forest Service research stations, including the Rocky Mountain Research Station (RMRS), and numerous collaborators have been hard...AuthorsSylvia Kantor, Linda A. Joyce, Claire B. O’Dea, Matt C. Reeves, Travis WarziniackKeywordsSourceScience You Can Use Bulletin, Issue 67. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. 13 p.Year2024
- Past reviews of the USDA Forest Service (Forest Service) Research and Development (R&D) branch have identified several persistent challenges, including unclear strategic direction and a need for greater communication with end users. We conducted research focused on the Rocky Mountain Research Station (RMRS) of R&D to understand current perceptions about the station’s efficacy and strategic direction as well as its engagement with partners both inside and outside of Forest Service. We conducted fifty-eight interviews with Forest Service and RMRS leaders, scientists, and partners. Interviewee...AuthorsS. Michelle Greiner, Courtney Schultz, Nathaniel AndersonSourceJournal of Forestry. 122(1): 91-102.Year2024