A Climatically Significant Abiotic Mechanism Driving Carbon Loss And Nitrogen Limitation In Peat Bogs,
2025
Florida State University
A Climatically Significant Abiotic Mechanism Driving Carbon Loss And Nitrogen Limitation In Peat Bogs, Alexandra B. Cory, Rachel M. Wilson, M. Elizabeth Holmes, William J. Riley, Yueh Fen Li, Malak M. Tfaily, Sarah C. Bagby, Darya Anderson, Robert M. Jones, Gareth Trubl, Nicole Irwin-Raab, Sky Dominguez, Moira Hough, Virginia I. Rich, Matthew B. Sullivan, Maria F. Fahnestock, Suzanne B. Hodgkins, Ruth K. Varner, Michael Ibba, Regis Ferriere, Ahmed Zayed, Patrick M. Crill, Jessica G. Ernakovich, Jeffrey P. Chanton
Michigan Tech Publications
Sphagnum-dominated bogs are climatically impactful systems that exhibit two puzzling characteristics: CO2:CH4 ratios are greater than those predicted by electron balance models and C decomposition rates are enigmatically slow. We hypothesized that Maillard reactions partially explain both phenomena by increasing apparent CO2 production via eliminative decarboxylation and sequestering bioavailable nitrogen (N). We tested this hypothesis using incubations of sterilized Maillard reactants, and live and sterilized bog peat. Consistent with our hypotheses, CO2 production in the sterilized peat was equivalent to 8–13% of CO2 production in unsterilized peat, and the increased formation of aromatic N compounds decreased N-availability. Numerous sterility assessments …
Managing Usda Wildfire Crisis Strategy Landscapes In The Intermountain West (Region 4): A Program For Training Future Forest Managers,
2025
Utah State University
Managing Usda Wildfire Crisis Strategy Landscapes In The Intermountain West (Region 4): A Program For Training Future Forest Managers, Justin Derose
Funded Research Records
No abstract provided.
Supporting Wildlife Restoration In Eastern States Via State Wildlife Action Plans,
2025
Panthera USA
Supporting Wildlife Restoration In Eastern States Via State Wildlife Action Plans, L. Mark Elbroch, John Vucetich, Christa Rose, Jeremy T. Bruskotter
Michigan Tech Publications
The biodiversity crisis is driven by extinction at two scales: the global extinction of species and the local extirpation of populations (i.e., range contraction). Local extirpations are especially acute in the eastern United States, which has lost a substantial portion of its native mammalian fauna. Species restoration in the U.S., therefore, should be utilised more to revitalise and restore degraded systems. State wildlife agencies can elevate discussions about species restoration and facilitate internal capacity to conduct restoration projects by including locally extirpated species in State Wildlife Action Plans, which are currently under revision, and will guide state conservation programs for …
Evaluating Elk Distribution And Conflict Under Proposed Management Alternatives At The National Elk Refuge In Jackson, Wyoming,
2025
U.S. Geological Survey
Evaluating Elk Distribution And Conflict Under Proposed Management Alternatives At The National Elk Refuge In Jackson, Wyoming, Gavin G. Cotterill, Paul C. Cross, Eric K. Cole, Jonathan D. Cook, Margaret C. Mceachran, Tabitha A. Graves
Aspen Bibliography
We evaluated measurable attributes describing the current and future distribution of Cervus elaphus canadensis (elk) across a region surrounding Jackson, Wyoming, for five feedground management alternatives proposed by the U.S. Fish and Wildlife Service as a revision to 2007 "Bison and Elk Management Plan" of the National Elk Refuge. A resource selection function evaluated measurable attributes of interest to managers, including elk use of private property and sensitive habitat types at monthly timesteps and varying winter conditions. The study area boundaries were created through an expert elicitation process and consist of the Jackson Elk Herd Unit, Grand Teton National Park, …
Increased Positive Tree Species Mixture Effects On The Abundance And Richness Of Collembola With Stand Development In Canadian Boreal Forests,
2025
Zhejiang A&F University
Increased Positive Tree Species Mixture Effects On The Abundance And Richness Of Collembola With Stand Development In Canadian Boreal Forests, Yakun Zhang, Sai Peng, Zilong Ma, Chen Chen, Bilei Gao, Xinli Chen, Han Y.H. Chen
Aspen Bibliography
It is well established that species mixtures could enhance ecosystem functioning in diverse ecosystem types, with these benefits increasing over time. However, the impact of tree mixtures on Collembola communities following stand development in natural forests remains unclear, despite the critical roles Collembola plays in litter decomposition and nutrient cycling. We investigated the effects of tree species mixtures on Collembola abundance, diversity, and community structure by sampling pure and mixed jack pine (Pinus banksiana Lamb.) and trembling aspen (Populus tremuloides Michx.) of 15-year-old and 41-year-old stands in natural boreal forest. In total, 6,620 individuals of Collembola were identified …
Land-Use Effects On Soil Organic Matter And Related Soil Properties In A Mixed Agricultural–Forest Landscape Of Central Wisconsin, Usa,
2025
Michigan Technological University
Land-Use Effects On Soil Organic Matter And Related Soil Properties In A Mixed Agricultural–Forest Landscape Of Central Wisconsin, Usa, Kathryn L. Hofmeister, Gwen Feitl, Kaylee Tackett, Leah Fleury, Lucas E. Nave
Michigan Tech Publications
Soil organic matter (SOM) influences a wide range of ecosystem processes, including nutrient cycling, water movement, plant productivity, and biodiversity. In agricultural landscapes, adjacent land uses often differ in SOM contents and related soil properties, such as soil organic carbon (SOC) stocks, but the direction and magnitude of these effects are inconsistent across studies. We assessed how land uses differed in SOM and related properties in a representative US Midwest agricultural–forest landscape to support land-use and management decisions by local landowners and producers. We measured SOM, bulk density (Db), root biomass, and pH, and estimated SOC stocks, in a Typic …
Forest Above-Ground Biomass Estimation Using Nasa Gedi Lidar Waveforms And Global Tree Allometry,
2025
CUNY Hunter College
Forest Above-Ground Biomass Estimation Using Nasa Gedi Lidar Waveforms And Global Tree Allometry, Ian Grant
Theses and Dissertations
Above-ground forest biomass plays a crucial role in global carbon cycles, yet accurately estimating biomass at global scales remains challenging. This thesis addresses two key challenges in processing NASA’s Global Ecosystem Dynamics Investigation (GEDI) space-borne lidar data to estimate above-ground biomass density (AGBD): accounting for global variation in forest structure and developing robust physical interpretations of lidar returns. The first component of the thesis analyzes global patterns of tree allometry using the Tallo tree allometry dataset, examining relationships between tree dimensions across biomes, continents, and plant functional types. This analysis reveals consistent allometry across continents for some biomes (e.g., tropical …
Soil Amendments Alter Tree Growth And Wood Decay After Forest Thinning,
2025
USDA ARS Moscow Forestry Sciences Lab
Soil Amendments Alter Tree Growth And Wood Decay After Forest Thinning, Deborah S. Page-Dumroese, Martin Jurgensen, Chris Miller, Joanne M. Tirocke, Derek N. Pierson, Cole Mayn, Mark J. Kimsey, Haley C. Anderson
Michigan Tech Publications
Forest soil amendments are increasingly used in western US forests to dispose of unmerchantable woody residues, reduce wildfire risk, and improve soil properties. Our objective was to determine the effect of fertilizer and organic amendments on tree growth and organic matter decomposition after thinning. Treatments were a control, three single soil amendments (wood chips, fertilizer, and biochar), and one combined soil amendment (biochar + fertilizer), each applied after thinning a ponderosa pine (Pinus ponderosa Dougl. ex. Laws) stand. After 10 years, amendment treatments had no effect on tree diameter increment (p = 0.600), but the biochar + fertilizer and wood …
Coffee Farmgate Price And Post-Harvest Processing In Honduras.,
2025
University of Kentucky
Coffee Farmgate Price And Post-Harvest Processing In Honduras., Isaac Desouza
Theses and Dissertations--Agricultural Economics
Volatile commodity markets and changing climate expose coffee farmers to price and production risk. Proponents recommend specialty coffee as a strategy to combat price risk, because its unique attributes differentiate it from commodity coffee. Extrinsic and intrinsic attributes define specialty coffee and affect prices at many levels of the supply chain. Despite much work on extrinsic attributes, little is known about how intrinsic attributes relate to farmgate price. Post-harvest processing is itself an intrinsic trait and driver of coffee quality. In 2024 we surveyed 261 coffee farmers from La Paz, Honduras, to uncover relationships between capital, post-harvest processing, and farmgate …
Timber Talk, Vol. 63, No. 3, July 2025 (Special),
2025
University of Nebraska - Lincoln
Timber Talk, Vol. 63, No. 3, July 2025 (Special)
Timber Talk: Nebraska Forest Industry Newsletter
Timber Talk, Vol. 63, No. 3, July 2025 (Special)
Influence Of Different Rates Of Biochar And Deer Browsing On Pollinator Plant Productivity,
2025
West Virginia University
Influence Of Different Rates Of Biochar And Deer Browsing On Pollinator Plant Productivity, Bipana Bhusal
Graduate Theses, Dissertations, and Problem Reports (ETD)
Biochar, a carbon-rich material produced from biomass, has received wide attention for soil amendment to improve plant growth. However, its specific effects on pollinator friendly plants remain poorly understood. In this study, we evaluated the effects of four biochar application rates (0, 10, 20, 40 tons/acre) and deer exclusion (fenced vs. unfenced) on the productivity of three pollinator species; Buckwheat (Fagopyrum esculentum), Plains Coreopsis (Coreopsis tinctoria), and Black-eyed Susan (Rudbeckia hirta) in a utility right of way with a history of mining. A split-plot randomized design was used, and the results were analyzed using …
2025 Annual Report,
2025
Tennessee State Library and Archives
2025 Annual Report, Tennessee. Division Of Forestry And Tennessee. Department Of Agriculture
Forestry Annual Reports
This annual report presents an overview of Tennessee Forestry Commission programs and management.
Feasibility Of Producing Non-Structural Wood Products Using Trembling Aspen Lumber,
2025
University of New Brunswick
Feasibility Of Producing Non-Structural Wood Products Using Trembling Aspen Lumber, Mengyuan Zhang
Aspen Bibliography
Trembling aspen (Populus tremuloides) is abundant in Canada but underutilized in non-structural solid wood products.This study was aimed at evaluating the feasibility of using aspen lumber to produce flooring, moulding, and siding. The shrinkage, surface roughness, and wettability of aspen wood were tested. The surface hardness, screw withdrawal resistance, colour change, and dimensional stability of there products fabricated were examined. The wood yield of each product was analyzed. It was found that aspen showed superior machinability and wettability to silver maple and yellow poplar. Aspen flooring had a Brinell hardness of 13.47 MPa, 60% lower than silver maple. …
Assessing Understory Along The Elk River (Hikshari') In Headwaters Forest Reserve, Humboldt County, California,
2025
Cal Poly Humboldt
Assessing Understory Along The Elk River (Hikshari') In Headwaters Forest Reserve, Humboldt County, California, Julie R. Meyers, Aliyah M. Ingram, Caleb N. Larkin, Joshua L. Carpenter
Environmental Science & Management Senior Capstones
Northern California’s extensive logging history and lack of forest management has altered old-growth coast redwood (Sequoia sempervirens) forests, leaving dense, homogenous second and third-growth forest stands. This has led to the use of modern restoration techniques such as variable density thinning (VDT) which aims to rehabilitate old-growth forest conditions by improving stand heterogeneity and light availability for understory species. Our study was done in Headwaters Forest Reserve (HFR) along the Elk River (Hikshari’) Trail in Humboldt County, California. Initially, the project was supervised by the Bureau of Land Management (BLM) Arcata Field Office. However, the 2025 U.S. government …
Effects Of Experimental Structural Retention Position And Aggregation On Avian Communities In Managed Forests Of The Pacific Northwest, U.S.,
2025
Cal Poly Humboldt
Effects Of Experimental Structural Retention Position And Aggregation On Avian Communities In Managed Forests Of The Pacific Northwest, U.S., Aidan M. Healey
Cal Poly Humboldt theses and projects
Managed forest lands in Oregon and Washington produce wood products and host diverse bird communities, though standing dead snags are often limited. State forest practices rules governing forest harvest dictate retention of a minimum number of trees when forests are clearcut harvested. However, little research has explored how the slope position and aggregation of retention, and the supplemental inclusion of mechanically created snags, affects use of these forest units by wildlife, especially highly mobile taxa such as birds. I used an avian point count sampling approach, within a replicate-block experiment dictating unit-level slope position, aggregation, and snag retention treatments, to …
Critical Environmental Communication Framework,
2025
Virginia Tech University
Critical Environmental Communication Framework, Shumaila J. Bhatti, Srivi Ramasubramanian, Andrea Feldpausch-Parker, Bruno Takahashi, Silje Kristiansen
Media Studies - All Scholarship
This study develops a Critical Environmental Communication (CEC) framework to assess the landscape of Environmental Communication research and to what extent and in which ways critical and justice-oriented perspectives are included. The CEC framework consists of four interconnected themes: (a) Marginalized Ecocultural Identities, (b) Context and Scale, (c) Power and Agency, and (d) Justice, Equity, Diversity, Access, and Inclusion (JEDAI). Using this framework in a bibliometric analysis examining 1,297 Environmental Communication publications, we assess the occurrence of these themes in the scholarship. Our analysis found that Marginalized Ecocultural Identities, and Context and Scale were most frequently occurring, while Power and …
A Method For Empirically Assessing Small Area Estimators Via Bootstrap-Weighted K-Nearest-Neighbor Artificial Populations, With Applications To Forest Inventory,
2025
Reed College
A Method For Empirically Assessing Small Area Estimators Via Bootstrap-Weighted K-Nearest-Neighbor Artificial Populations, With Applications To Forest Inventory, Grayson W. White, Jerzy Wieczorek, Zachariah W. Cody, Emily X. Tan, Jacqueline O. Chistolini, Kelly S. Mcconville, Tracey S. Frescino, Gretchen G. Moisen
Faculty Journal Articles
National Forest Inventories monitor forest attributes across a variety of spatial and temporal scales in a given country. Increased interest in reporting and management at smaller scales has driven National Forest Inventories to investigate and adopt small area estimation (SAE) due to the promise of increased precision at these scales. However, comparing and evaluating SAE models for a given application is inherently difficult. Typically, many areas lack enough data to check unit-level modeling assumptions or to assess unit-level predictions empirically; and no ground truth is available for checking area-level estimates. Design-based simulation from artificial populations can help with each of …
Potential Of Using Trembling Aspen To Make Structural Engineered Wood Products,
2025
University of New Brunswick
Potential Of Using Trembling Aspen To Make Structural Engineered Wood Products, Dawei Wang
Aspen Bibliography
Trembling aspen (Populus tremuloides) is abundant in Canada but is widely considered an underutilized species. This study was aimed at evaluating the potential of using aspen lumber to produce cross-laminated timber (CLT), glued-laminated timber (glulam), and wood I-joists. The key mechanical properties of these engineered wood products, which were fabricated using a modified grading criterion, were examined. It was found that 1) The mean effective bending stiffness and characteristic bending moment resistance of 5-layer CLT specimens in the major-strength direction were 5,069x109 N·mm2/m and 97.65x106 N·mm/m; 2) The mean apparent MOE and characteristic modulus …
Collaborative Wildfire Governance Within The Southwest Idaho Wildfire Crisis Strategy Landscape: Survey Results 2025,
2025
Portland State University
Collaborative Wildfire Governance Within The Southwest Idaho Wildfire Crisis Strategy Landscape: Survey Results 2025, Mahmood Muttaqee, Cody R. Evers, Lindsay K. Campbell, Max Nielsen-Pincus, Olivia Awbrey, Kathryn Hixson, Michelle Johnson, Erika Svendsen
Environmental Science and Management Faculty Publications and Presentations
Collaboration plays a critical role in wildfire risk mitigation efforts. This study examines collaborative wildfire governance networks within Southwest Idaho, a priority landscape designated in 2022 under the USDA Forest Service's Wildfire Crisis Strategy (WCS). Through survey data from 64 respondents, the Fueling Adaptation study aimed to identify the structure, capacity, and gaps in governance networks addressing wildfire risk in Southwest Idaho and understand how WCS investments have influenced wildfire management in the area. The findings reveal a growing governance network centered on the USDA Forest Service and the Idaho Department of Lands and supported by numerous non-governmental organizations and …
Timber Talk, Vol. 63, No. 1, March 2025,
2025
University of Nebraska - Lincoln
Timber Talk, Vol. 63, No. 1, March 2025
Timber Talk: Nebraska Forest Industry Newsletter
Timber Talk, Vol. 63, No. 1, March 2025
