Treesearch
Displaying 1,571 - 1,580 of 65,126 Publications- Wood–water interactions are central to wood science, technology, and engineering. In the early twentieth century, the term “fiber saturation point” was coined to refer to the point of transition from the domain where wood properties change with moisture content to the domain where wood properties are constant. This conceptual model assumed that the wood cell walls are water saturated at this transition point and that capillary water appears above this point. This has since then been contradicted by multiple studies. Additionally, the fiber saturation point has been associated with technique...AuthorsMaria Fredriksson, Emil Engelund Thybring, Samuel L. Zelinka, Samuel V. GlassKeywordsSourceCelluloseYear2025
- This paper is part of an interlaboratory study investigating the stability and performance of automated sorption balances. A previous paper in this study investigated the mass, temperature, and relative humidity (RH) stability of automated sorption balances by looking at the mass change of a non-hygroscopic sample over time. In this study, we examine the mass stability of wood samples held at constant RH for seven to ten days after a step change. The reason for the long hold times was to collect data to “operational equilibrium” where the change in mass is on the order of the inherent...AuthorsSamuel L. Zelinka, Samuel V. Glass, Natalia Farkas, Emil E. Thybring, Michael Altgen, Lauri Rautkari, Simon Curling, Jinzhen Cao, Yujiao Wang, Tina Künniger, Gustav Nyström, Christopher Hubert Dreimol, Ingo Burgert, Mark G. Roper, Darren P. Broom, Matthew Schwarzkopf, Arief Yudhanto, Mohammad Subah, Gilles Lubineau, Maria Fredriksson, Wiesław Olek, Jerzy Majka, Nanna Bjerregaard Pedersen, Daniel J. Burnett, Armando R. Garcia, Frieder Dreisbach, Louis Waguespack, Jennifer Schott, Luis G. Esteban, Alberto García‑Iruela, Thibaut Colinart, Romain Rémond, Brahim Mazian, Patrick Perré, Lukas EmmerichSourceAdsorptionYear2025
- The urgent need for climate change mitigation has increased the focus on reducing embodied carbon and energy, particularly in the construction sector. Utilizing sustainably sourced mass timber products provides a low-carbon alternative to traditional concrete and steel structural systems in buildings. These carbon impacts can be quantified by evaluating the total environmental impact of a building, from material extraction and product manufacturing to construction, operation, and demolition. This study evaluated the environmental impacts of a 14-storey mass timber–steel hybrid building in...AuthorsNadia Zahabi, Hongmei Gu, Meng Gong, Janet BlackadarKeywordsSourceBuildingsYear2025
- The American Society of Testing and Materials (ASTM), D1990 details standard practices for establishing and maintaining design values for dimension lumber. Included in this standard are statistical methods for detecting changes in dimension lumber properties over time. A characteristic (or design) value, also known as the allowable property, is published for each lumber property, and this value must be updated whenever changes in the resource warrant. Currently ASTM D1990 calls for the use of the Wilcoxon Rank Sum test (also known as the Mann-Whitney test) to detect changes in these...AuthorsMatthew A. Arvanitis, Christopher Adam SenalikKeywordsSourceForest Products JournalYear2025
- To update our knowledge about the logging sector in Minnesota and Wisconsin, coordinated mail surveys were conducted during the spring of 2022. The surveys collected data on harvest systems, production volumes, profitability, production capacity, business demographics, capital investment, trucking, stumpage sources, timber products harvested, emerging issues, and more. The average age of logging business owners and their equipment is trending older. Harvest production is trending downward. Stumpage sources are trending away from public lands and relying more on private lands. Delivery is...AuthorsScott A. Bowe, Julie Ballweg, Charles R. Blinn, David A. Nolle, Robert A. SmailKeywordsSourceJournal of ForestryYear2025
- Prolonged inundations are altering coastal forest ecosystems of the southeastern US, causing extensive tree die-offs and the development of ghost forests. This hydrological stressor also alters carbon fluxes, threatening the stability of coastal carbon sinks. This study was conducted to investigate the interactions between hydrological drivers and ecosystem responses by analyzing daily eddy covariance flux data from a wetland forest in North Carolina, USA, spanning 2009–2019. We analyzed temporal patterns of net ecosystem exchange (NEE), gross primary productivity (GPP), and ecosystem...AuthorsMaricar Aguilos, Jiayin Zhang, Miko Belgado, Ge Sun, Steve McNulty, John KingKeywordsSourceForestsYear2025
- The biogeography of irruptive insect herbivores is determined by host availability and climate conditions. As such, outbreak distributions are sensitive to climatic change, especially across large latitudinal gradients. Here, we investigate the outbreak distributions of two understudied defoliators, hemlock sawfly Neodiprion tsugae (Hymenoptera) and western blackheaded budworm Acleris gloverana (Lepidoptera), that have both recently impacted the greatest land area recorded across the Pacific coastal temperate rainforest since the establishment of aerial survey programs. We compiled...AuthorsMichael Howe, Elizabeth E. Graham, Kellen NelsonKeywordsSourceEcography. 2024(9): e07370.Year2025
- Increasing the equitable distribution of tree canopy is a priority for many cities, and tree canopy change studies are needed to inform natural resource managers on how and for whom canopy is changing. This study examines relationships between tree canopy change, socioeconomic/demographic characteristics, and land use at the block group and county scales, in Cook County, Illinois from 2010 to 2017. At the block group level, spatial Random Forest Regression models the nonlinear relationships between six canopy metrics and socioeconomic, demographic, and land use predictors. We also tabulated...AuthorsJackson D. Lyall, Lindsay E. Darling, Dexter H. Locke, Brady S. HardimanSourceUrban Forestry & Urban GreeningYear2025
- We document the characteristics of infrasound from a compact (<3-m burn diameter) wood pile fire using arrays located at 50 and 600 m. Infrasound from our controlled burn is present throughout the entire near-infrasound range (1–20 Hz), but its peak infrasound energy trends from 1.3 to 1 Hz over an hour correlating with a transition from relatively tall and narrow flame to a broader pile of coals with shorter flame. Observed infrasound frequencies correlate with flame flickering – quantified through spectral analysis of video – suggesting that flame and gas pulsing is the mechanism for the...AuthorsJ.B. Johnson, J.F. Anderson, Kara YedinakKeywordsSourceApplied AcousticsYear2025
- Background. Pyrogenic organic matter (PyOM) represents a relatively persistent component of soil carbon stocks. Although subsequent fires have the potential to combust or alter preexisting PyOM stocks, simulating soil heating faces important methodological constraints. In particular, methods for estimating the effects of subsequent fire on preexisting PyOM in soil have important limitations. Aims. We aimed to design a laboratory method to effectively simulate soil heating from above, to investigate the impacts of subsequent fires on PyOM at different soil depths while addressing key...AuthorsMengmeng Luo, Kara Yedinak, Keith Bourne, Thea WhitmanKeywordsSourceInternational Journal of Wildland FireYear2025