Treesearch
Displaying 2,911 - 2,920 of 65,140 Publications- Forests play a critical role in regulating global levels of atmospheric carbon dioxide. The carbon that trees absorb from the atmosphere provides the backbone for plant tissues, such as wood, leaves, roots, etc. However, as a fundamental part of the carbon cycle, when a tree or branch falls in the forest, the stored carbon is released back to the atmosphere through decomposition. Depending on the size and type of biomass, as well as climate, this decomposition process can take weeks to centuries. For common forms of woody slash, much of the stored carbon returns to the atmosphere in less...AuthorsDerek PiersonKeywordsSourceWestern Forester. 69(2): 20-21.Year2024
- This resource update is a brief look at some of the basic metrics that describe the status of and changes to forest resources in Arkansas. Estimates presented are for the 2022 survey year with resource changes compared to the 2021 survey year (Rosson 2022). This information is based on field data collected using the U.S. Department of Agriculture, Forest Service, Forest Inventory and Analysis (FIA) annualized sample design, and it is updated yearly. Arkansas has about 5,700 sample plots across the State; each year, 20 percent of these plots (one panel) are visited and measured by field...AuthorsJames F. RossonYear2024
- Mangroves in Southeast Asia provide numerous supporting, provisioning, regulating, and cultural services that are crucial to the environment and local livelihoods since they support biodiversity conservation and climate change resilience. However, Southeast Asia mangroves face deforestation threats from the expansion of commercial aquaculture, agriculture, and urban development, along with climate change-related natural processes. Ecotourism has gained prominence as a financial incentive tool to support mangrove conservation and restoration. Through a systematic literature review approach,...AuthorsAustin Blanton, Ewane Basil Ewane, Freddie McTavish, Michael S. Watt, Kerrylee Rogers, Redeat Daneil, Irene Vizcaino, Ana Novo Gomez, Pavithra S. Pitumpe Arachchige, Shalini A. L. King, G. A. Pabodha Galgamuwa, Martha Lucia Palacios Penaranda, Layla al-Musawi, Jorge F. Montenegro, Eben North Broadbent, Angelica Maria Almeyda Zambrano, Andrew T. Hudak, Kanokporn Swangjang, Luisa Velasquez-Camacho, Jaime Hening Polania Vorenberg, Shruthi Srinivasan, Meshal M. Abdullah, Yassine A. R. Charabi, Wan Shafrina Wan Mohd Jaafar, Fazilah Musa, Frida Sidik, Talal Al-Awadhi, Tarig Ali, Willie Doaemo, Midhun MohanKeywordsSourceJournal of Environmental Management. 365: 121529.Year2024
- Background. There is an ongoing need for improved understanding of wildfire plume dynamics. Aims. To improve process-level understanding of wildfire plume dynamics including strong (>10 m s−1) fire-generated winds and pyrocumulus (pyroCu) development. Methods. Ka-band Doppler radar and two Doppler lidars were used to quantify plume dynamics during a high- intensity prescribed fire and airborne laser scanning (ALS) to quantify the fuel consumption. Key results. We document the development of a strongly rotating (>10 m s-1) pyroCu-topped plume reaching 10 km. Plume rotation develops during...AuthorsNeil P. Lareau, Craig B. Clements, Adam Kochanski, Taylor Aydell, Andrew T. Hudak, T. Ryan McCarley, Roger D. OttmarKeywordsSourceJournal of Wildland Fire. 33: WF23045.Year2024
- Background Understanding how trees develop their root systems is crucial for the comprehension of how wildland and urban forest ecosystems plastically respond to disturbances such as harvest, fire, and climate change. The interplay between the endogenously determined root traits and the response to environmental stimuli results in tree adaptations to biotic and abiotic factors, influencing stability, carbon allocation, and nutrient uptake. Combining the three-dimensional structure of the root system, with root morphological trait information promotes a robust understanding of root function...AuthorsAntonio Montagnoli, Andrew T. Hudak, Pasi Raumonen, Bruno Lasserre, Mattia Terzaghi, Carlos A. Silva, Benjamin C. Bright, Lee A. Vierling, Bruna N. de Vasconcellos, Donato Chiatante, Kas DumroeseSourcePlant Methods. 20: 102.Year2024
- To date, only a limited number of studies have utilized remote sensing imagery to estimate aboveground biomass (AGB) in the Miombo ecoregion using wall-to-wall medium resolution optical satellite imagery (Sentinel-2 and Landsat), localized airborne light detection and ranging (lidar), or localized unmanned aerial systems (UAS) images. On the one hand, the optical satellite imagery is suitable for wall-to-wall coverage, but the AGB estimates based on such imagery lack precision for local or stand-level sustainable forest management and international reporting mechanisms. On the other hand,...AuthorsHastings Shamaoma, Paxie W. Chirwa, Jules C. Zekeng, Able Ramoelo, Andrew T. Hudak, Ferdinand Handavu, Stephen SyampunganiKeywordsSourcePlant Methods. 20: 88.Year2024
- Fuel treatments and other forest restoration thinning practices aim to reduce wildfire risk while building forest resilience to drought, insects, and diseases and increasing aboveground carbon (C) sequestration. However, fuel treatments generate large amounts of unmerchantable woody biomass residues that are often burned in open piles, releasing significant quantities of greenhouse gases and particulates, and potentially damaging the soil beneath the pile. Air curtain burners offer a solution to mitigate these issues, helping to reduce smoke and particulates from burning operations, more...AuthorsDeborah S. Page-Dumroese, Joanne M. Tirocke, Nathaniel Anderson, James G. Archuleta, Daniel W. McCollum, Jeffrey T. Morisette, Derek Pierson, Carlos Rodriguez-FrancoKeywordsSourceJournal of Visualized Experiments. 206: e66716.Year2024
- Introduction: Climate change is predicted to increase the frequency of extreme single-day fire spread events, with major ecological and social implications. In contrast with well-documented spatio-temporal patterns of wildfire ignitions and perimeters, daily progression remains poorly understood across continental spatial scales, particularly for extreme single-day events (“blow ups”). Here, we characterize daily wildfire spread across North America, including occurrence of extreme singleday events, duration and seasonality of fire and extremes, and ecoregional climatic niches of fire in...AuthorsJared A. Balik, Jonathan D. Coop, Meg A. Krawchuk, Cameron E. Naficy, Marc-André Parisien, Sean A. Parks, Camille S. Stevens-Rumann, Ellen WhitmanKeywordsSourceFrontiers in Forests and Global Change. 7: 1355361.Year2024
- American chestnuts (Castanea dentata) were once abundant in the eastern United States, until the non-native diseases chestnut blight fungus and ink disease devastated their numbers in the 19th and 20th centuries. By the 1950s, American chestnuts were functionally extinct, meaning that the species no longer plays a viable role in the ecosystem. Today, 10 percent of the original population remains, and most trees are small sprouts that often die young.AuthorsNorthern Research Station. USDA Forest ServiceKeywordsSourceFSYear2024
- The ongoing investigation into detecting fraudulent additions to milk powder is a collaborative effort among governmental agencies, industry, and academia. Recent advancements are emphasizing the utilization of gas fingerprinting methodologies, which involve characterizing the aroma of samples using gas sensors and using chemometrics methods to detect “out-of-class” or adulterated samples. We developed an advanced method using an electronic nose (e-nose) equipped with 8 metal oxide semiconductor (MOS) sensors to detect whey adulteration in powdered milk by analyzing volatile emissions. We...AuthorsPouya Darvishi, Esmaeil Mirzaee-Ghaleh, Zeynab Ramedani, Hamed Karami, Dan D. WilsonKeywordsSourceJournalYear2024