Treesearch

There is an increasing need for inexpensive biodegradable sensors that can be easily employed in networks such as the Internet of Things. Paper materials are renewable, biodegradable, and sustainable, and thus could be used as substrates for electronic sensors. This work examined two commodity cellulose materials, an envelope paper and a linerboard, as potential substrates. A multistage coating process was developed to create a smooth surface for screen-printing of sensors using inexpensive microfibrillated cellulose. Employing this process, approximately 10 gm−2 of microfibrillated...

Postharvest fruit losses can be 25–50 %. This study is to develop a microfibrillated cellulose (MFC)-based lowcost barrier coating technology to extend banana shelf life and decrease postharvest losses. The coating performance of MFC adding carboxymethyl cellulose (MFC/CMC) on banana was evaluated by monitoring banana peel appearance/color browning, weight loss, firmness, and total soluble solids (TSS) at the ambient condition. The results showed that MFC/CMC coating with the addition of a proper amount of CMC could effectively delay banana browning by 2 days and decrease weight loss over...

Wood specific gravity (SG) is an essential indicator of wood quality, carbon stock, and the universality of tree functional traits influenced by both genetic and environmental factors. This study investigates the influence of natural physical variables, topography, water availability, and wind exposure on the specific gravity of the Quercus genus across a wide geographic range. Using a Bayesian regression model, we analyzed the relationships between SG and the selected physical variables. Our results indicate that these variables explain a significant proportion of the variation in SG...

This resource update presents estimates of wood flow derived from the findings of an annual survey conducted on a sample of all primary wood-using mills and complements the Timber Products Output factsheets providing additional summarized roundwood data. The annual survey was conducted to determine the amount and source of wood receipts and timber product imports/exports. Data used in thisupdate were accessed from the FIA National Resource Use Monitoring database.The application that produced this resource update was developed using data from the USDA Forest Service Forest Inventory and...

Timber Product Output (TPO) is a component of FIA’s National Resource Use Monitoring (NRUM) program aimed at gathering and reporting information on industrial and non-industrial uses of roundwood. Data are gathered through annual surveys of primary wood processing facilities and aggregated and reported at the county and/or state level. Data and more information about NRUM and TPO can be found at the National Resource Use Monitoring page:https://research.fs.usda.gov/programs/nrum.

Ticks present a significant risk to people in the southern United States, particularly those who spend time outdoors, as ticks can transmit agents that cause various diseases. This study evaluated the risk of exposure to ticks positive for spotted fever group (SFG) Rickettsia species among forestry workers. From 2017 to 2021, forestry workers passively collected ticks during field surveys for the USDA Forest Service’s Forest Inventory and Analysis program. We screened 1395 ticks for SFG-Rickettsia, including Amblyomma americanum (51.5% positive, N = 1,279), A. maculatum (40% positive, N =...

There is little published data available on herbicidal control for invasive Callery pear (Pyrus calleryana) or its ecological effects in North American forests. A previous field study exploring herbicide control for Callery pear was completed in 2019, providing an opportunity to (1) quantify reinfestation of Callery pear in the medium-term (3–4 years after treatment) along with changes in the woody plant community, and (2) determine how millipedes (Diplopoda) and earthworms (Clitellata: Oligochaeta) are affected by changes in the woody plant community following herbicide applications on...

Callery pear ( Pyrus calleryana Decne.) is a problematic woody invasive plant in eastern North America that invades old fields, forests, and disturbed sites. While management guidance typically suggests foliar, basal bark, cut stump, and hack-and-squirt applications of herbicides for P. calleryana , there is a dearth of studies focusing on the efficacy of specific treatments. We evaluated seven herbicide treatments for control of midstory P. calleryana . Cut stump and hack-and-squirt applications of glyphosate, imazapyr, and triclopyr and a soil application of hexazinone were repeated at...

China is a vast nation that has relatively low forest coverage and suffers chronic soil erosion and water shortages due to intensive human activities and natural conditions. Modern forest hydrology research in this populous country started late but has made important advancement during the past 40 years. This chapter provides a summary of the historical development of forest hydrology research in China, highlighting the major research methods, field installation and achievements. We present key research progress in terms of forest canopy interception, evapotranspiration, and the relationshi...

Global conservation targets include protecting genetic diversity within species. Yet few studies have assessed whether protected areas (PAs) include genetically diverse populations across species globally. A first step is understanding the availability of population genetic data that could be used in these assessments. We surveyed georeferenced population-level nuclear (as opposed to mitochondrial or plastid-based) genetic data across continents and marine biomes (36,354 populations, 2809 species) and found substantial geographic and taxonomic gaps. Most data were concentrated in Europe...