Treesearch

The U.S. Department of Agriculture (USDA), Forest Service, Forest Inventory and Analysis (FIA) program provides this resource update yearly as an overview of forest resources in Oklahoma. These estimates are derived from field data collected across a systematic network of fixed-radius forest monitoring plots located on both public and private land. New updates are provided annually as a subset of plots within the State are remeasured. Each year, field crews visit and measure a subset of all FIA plots across the entire State (the size of the subset varies by State and year). Combining all...

The U.S. Department of Agriculture (USDA), Forest Service, Forest Inventory and Analysis (FIA) program provides this resource update yearly as an overview of forest resources in Texas. These estimates are derived from field data collected across a systematic network of fixed-radius forest monitoring plots located on both public and private land. New updates are provided annually as a subset of plots within the State are remeasured. Each year, field crews visit and measure a subset of all FIA plots across the entire State (the size of the subset varies by State and year). Combining all the...

Agronomic benefits of applying biochar into soils, as a sustainable and environment-friendly soil amendment approach, have been well-documented for decades, known for improving soil water and nutrient retention capacity followed by better crop production. Still, research on the effects of certain locally sourced biochar waste and combined use with fertilizer and compost on agricultural lands with sandy soils is rather limited. Therefore, our study attempted to explore the effects of locally produced biochar waste amended with compost and fertilizer on the water retention, pH, and nutrients...

The International Digital Image Correlation Society (iDICs) was founded in 2015 as a nonprofit scientific and educational organization committed to training and educating users of digital image correlation (DIC) systems. iDICs is composed of members from academia, government, and industry, and develops world-recognized DIC training and certifications to improve industry practice of DIC for general applications, with emphasis on both research and establishing standards for DIC measurement techniques. More information can be found at www.idics.org.To support this mission, the iDICs Standardiz...

Wood, a renewable and eco-friendly resource, holds significant potential for developing sustainable structural materials. Nevertheless, in advanced engineering applications, natural wood often fails to meet requirements for mechanical performance and flame retardancy. Herein, we present a novel, simple yet highly effective strategy to fabricate tough flame-retardant wood (TF-wood). This approach involves partial delignification using alcohol-amine-based deep eutectic solvents (DESs), followed by N/P-functionalization of the dissolved lignin that is reincorporated into the wood matrix with...

Restoration of riparian vegetation is an objective for recovery of threatened salmonids in the interior Pacific Northwest (PNW; USA). However, bryophytes (mosses, liverworts, and hornworts) are overlooked despite their capacity to provide stream habitat for invertebrates, an important salmonid food. The role of bryophytes as invertebrate habitat is little studied in the PNW. We investigated macroinvertebrate communities in bryophytes across three aquatic habitat types (headwaters, mid‐order streams and wetlands) in a salmonid‐bearing stream system in the Blue Mountains, northeastern Oregon...

Udeuid (Manilkara udoido) is a culturally and ecologically important forest tree endemic to Babeldaob Island, Palau (Kitalong et al. 2014). Extensive mortality of mature udeuid trees was noted in late 2021. Dying trees had wilting and yellowing leaves, with main stems showing necrotic inner bark, black-stained xylem, and attacks by bark and ambrosia beetles. Losses exceeded 50% in several areas within the core range of udeuid. Because symptoms were suggestive of Ceratocystis wilt, samples of necrotic and stained inner bark and xylem, as well as beetle frass, were placed between fresh...

In this study, unidirectional E-glass and S2-glass fabrics are coated with cellulose nanocrystals (CNC), and the influence of the coating on the glass fiber (GF)-epoxy matrix interfacial properties and GF fabric-epoxy laminate tensile properties are investigated. The methodology and processing conditions for vacuum-assisted slot die coating of CNC dispersions onto GF fabrics are described. Scanning electron microscopy (SEM) and single fiber fragmentation test (SFFT) results determined that the addition of vacuum assist was crucial to producing uniform CNC coatings, preserving good fiber...

This study explores how biochar with different physicochemical properties affects its performance in cementitious composites and therefore can help to formulate carbon-negative cementitious composites. Eight types of biochar were produced using three methods: (I) air exposure for varying durations, (II) adding K2SiO3 during pyrolysis and exposing to air for different durations, and (III) incorporating NaOH at different dosages during pyrolysis. These functionalized biochar samples were added at 30% by weight of the binder, containing slag cement and Ordinary Portland Cement (OPC). Biochar...

In some seepage lakes, acid neutralising capacity (ANC) is regulated by precipitation chemistry and in‐lake biogeochemical processes with little influence from groundwater and catchment runoff. However, additional environmental contexts, for example, landscape position and changing precipitation dynamics, may also contribute to variability in ANC across lakes over time. We used a mixed effects model to assess the influence of changing precipitation patterns and the chemistry of hydrologic inputs on ANC in seven northern Wisconsin, USA seepage lakes from 1984 to 2018. We observed differentia...