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An Exploratory Study On The Impacts Of Covid-19 On Urban Forestry And The Urban Environment, Judith Oppong 2022 Southern University and A & M College

An Exploratory Study On The Impacts Of Covid-19 On Urban Forestry And The Urban Environment, Judith Oppong

COVID-19 Research Symposium - Student Publications

With associated economic lost, the covid-19 pandemic imposed several ecological costs on cities and communities. Many public spaces across the world were either closed or had restricted access during the peak of the covid-19 pandemic. This as well as many other impositions during that period hindered access to and use of urban landscapes such as parks and green spaces. This exploratory study looks at the impacts of the covid-19 pandemic on the management, perception and use of urban landscapes such as urban forests and parks. The study identifies increased security and maintenance issues, staffing shortage, funding cuts, and loss of …


Spatiotemporal Analysis Of Covid-19 Lockdown Impact On The Land Surface Temperatures Of Different Land Cover Types In Louisiana, Priscilla Mawuena Loh 2022 Southern University and A & M College

Spatiotemporal Analysis Of Covid-19 Lockdown Impact On The Land Surface Temperatures Of Different Land Cover Types In Louisiana, Priscilla Mawuena Loh

COVID-19 Research Symposium - Student Publications

There are growing debates about anthropogenic (human) factors having considerable impact on climate change, the ecosystem, and heat-related trends as far as conditions of the earth’s surface temperature are concerned. A reduction in human activities leading to the emission of toxic gases such as Carbon Dioxide and Methane into the atmosphere is however, regarded as one of the mitigative remedies to combat climate changes and its associated effects. This phenomenon of fewer human activities was demonstrated during the Covid-19 pandemic outbreak, which presented a severe threat to nations all over the world and consequently restricted human movements by imposing a …


Bibliography Of Mountain Biking Research: 1990-2021, Katelyn P. Kuklinski, Kimberly J. Coleman, Jessica E. Leahy, Elizabeth E. Perry, Emily Reinhardt, Luke Briccetti 2022 University of Maine

Bibliography Of Mountain Biking Research: 1990-2021, Katelyn P. Kuklinski, Kimberly J. Coleman, Jessica E. Leahy, Elizabeth E. Perry, Emily Reinhardt, Luke Briccetti

Non-Thesis Student Work

Since the 1980s, mountain biking as an outdoor recreation activity has grown rapidly worldwide. Research on mountain biking is growing across many academic disciplines, from medicine to outdoor recreation and tourism research. This bibliography includes peer-reviewed research published on mountain biking within the context of natural resource management from 1990-2021.


Disfrutar Excursiones Por Nuestra Bella Colombia, Gonzalo Escobar Reyes, Elizabeth Ann Escobar Cazal, María Cristina Velásquez Ardila 2022 Universidad de Cundinamarca

Disfrutar Excursiones Por Nuestra Bella Colombia, Gonzalo Escobar Reyes, Elizabeth Ann Escobar Cazal, María Cristina Velásquez Ardila

Ciencias Administrativas, Económicas y Contables

Caminatas, excursiones, senderismo, son actividades recreativas que rompen rutinas de trabajo, compromisos diarios, e inundan de alegría y ánimo a quienes participan en ellas, permitiendo de paso conocer y disfrutar paisajes, tener contacto con el verde de la naturaleza, respirar aire limpio , y compartir la integración en familia, con amigos y vecinos. Por ser estas de baja exigencia física, tienen un favor que no es necesario contar con entrenamiento de súper atletas, recomendándose, eso sí, estar en buen estado de salud. Por lo que son incluidos niños y adultos mayores.


Improvement Value Of Forest Resources By Use Of Cottonseed Protein Meal As A Bio-Based Wood Adhesive For Hardwood Plywood Products, Edward David Entsminger 2022 Mississippi State University

Improvement Value Of Forest Resources By Use Of Cottonseed Protein Meal As A Bio-Based Wood Adhesive For Hardwood Plywood Products, Edward David Entsminger

Theses and Dissertations

Literature shows that production of cottonseed adhesives is feasible to develop an environmentally friendly and competitive bio-based wood adhesive. Defatted cottonseed and water-washed cottonseed meals were prepared from glandless cottonseed and were used in adhesive formulations to produce three-ply yellow poplar (Liriodendron tulipifera) plywood panels as the first objective. These two cottonseed meals were compared with the properties of plywood panels made with an adhesive formulated from a commercial soybean meal, as a control. Adhesive resins were prepared from each protein meal with sodium metabisulfite (Na2S2O5) and one of two polyamido-amine-epichlorohydrin (PAE) wet strength agents, and the plywood panels were …


Quantifying Aboveground Biomass In A Tropical Forest Using A Lidar Waveform Weighted Allometric Model, Alejandro Rojas 2022 CUNY Hunter College

Quantifying Aboveground Biomass In A Tropical Forest Using A Lidar Waveform Weighted Allometric Model, Alejandro Rojas

Theses and Dissertations

Our knowledge of the distribution and amount of terrestrial above ground biomass (AGB) has increased using lidar technology. Recent advancements in satellite lidar has enabled global mapping of forest biomass and structure. However, there are large biases in satellite lidar estimates which impacts our understanding of carbon dynamics, particularly in tropical forests.

Ni-Meister et al. (2022) developed a lidar full waveform weighted height-based allometric model which produced very good results in temperate deciduous/conifer forest in the continental US. The purpose of this study was to evaluate this biomass model in an African tropical forest using the Land Vegetation and Ice …


Flora Of Doe Mountain Recreation Area, Johnson County, Tennessee, Benjamin McCullough 2022 East Tennessee State University

Flora Of Doe Mountain Recreation Area, Johnson County, Tennessee, Benjamin Mccullough

Electronic Theses and Dissertations

A botanical inventory of Doe Mountain Recreation Area (DMRA) in northeastern Tennessee was conducted to help guide conservation-based management. A total of 484 species were found in DMRA, comprising 94 families, and 285 genera, 10 species listed in the state rare plant list, and 76 exotic species. Two species, Liatris virgata and Lycopodiella inundata, were new state records. Water in the Lycopodiella seep was an order of magnitude more acid than at other sites. An analysis of the wildland-urban interface showed that only 13% of the area was classified as uninhabited. The inventory-invasion index, introduced to quantify the relative …


Soil Quality Indicators And Vegetation Responses Following Ecological Restoration Thinning Of Ponderosa Pine On Three Soil Parent Material Types Under Grazing And Non-Grazing In Northern Arizona, Christopher MacDonald 2022 Stephen F. Austin State University

Soil Quality Indicators And Vegetation Responses Following Ecological Restoration Thinning Of Ponderosa Pine On Three Soil Parent Material Types Under Grazing And Non-Grazing In Northern Arizona, Christopher Macdonald

Electronic Theses and Dissertations

This research was performed in a northern Arizona ponderosa pine (Pinus ponderosa P. & C., Lawson) forest. The objectives were to a) increase understanding of long-term vegetation responses to ecological restoration treatments on three soils types, with and without grazing, b) evaluate the responses soil physical, chemical, and biological properties to restoration treatments, with and without grazing, c) determine the utility of measured soil quality indicators to informing risks to sustainable soils management in southwestern ponderosa pine forests.

There were no significant differences in soil bulk density by soil type, treatment type, or grazing treatment. No significant differences …


Contribución A La Conservación De La Orquídea Rodriguezia Granadensis(Lindl.) Rchb.F. En La Hacienda Betania (Fusagasugá, Colombia), ARLETTE IVONNE GIL CLAVIJO, JENNY PAOLA MORENO LÓPEZ, LAGUANDIO DEL CRISTO BANDA SÁNCHEZ 2022 Universidad de Cundinamarca

Contribución A La Conservación De La Orquídea Rodriguezia Granadensis(Lindl.) Rchb.F. En La Hacienda Betania (Fusagasugá, Colombia), Arlette Ivonne Gil Clavijo, Jenny Paola Moreno López, Laguandio Del Cristo Banda Sánchez

Ciencias Agropecuarias

Esta cartilla presenta a la comunidad la información generada en el proyecto de investigación denominado “Aproximación a la ecología de orquídeas nativas en el ecosistema hacienda Betania con proyección a su conservación, manejo y producción”, el cual fue desarrollado por el Grupo de Investigación PROSAFIS de la Universidad de Cundinamarca. Este manuscrito es una contribución al manejo, tuvieron y valoración de las orquídeas nativas, destacando la orquídea Rodriguezia granadensis, presente en ciertos relictos agroecológicos en áreas de influencia de Fusagasugá. Los resultados obtenidos en la investigación mostraron la preferencia o alta adaptación de R. granadensis a los forofitos de cítricos …


Michigan Conifer Growers’ Perspectives On Disease Management, Emily S. Huff, Monique L. Sakalidis 2022 Michigan State University

Michigan Conifer Growers’ Perspectives On Disease Management, Emily S. Huff, Monique L. Sakalidis

The Journal of Extension

A survey of commercial nursery and Christmas tree growers was implemented online and by mail in 2018 to understand disease issues and information preferences. Overall, the majority of the respondents reported that they prefer online sources of information and many are using Extension bulletins and sources. Cultural, chemical, and weed control methods were considered extremely effective by participants and very few used biological control methods to control disease. Participants identified spruce decline, boxwood blight, and hemlock woolly adelgid as emerging disease threats, so future information to growers should focus on identification and management of these threats.


Efficacy Of Chemical And Biological Stump Treatments For The Control Of Heterobasidion Occidentale Infection Of California Abies Concolor, Adrian Luis Poloni 2022 Cal Poly

Efficacy Of Chemical And Biological Stump Treatments For The Control Of Heterobasidion Occidentale Infection Of California Abies Concolor, Adrian Luis Poloni

Master's Theses

We conducted an experimental evaluation of treatments to limit Heterobasidion occidentale infection of white fir (Abies concolor) stumps and wounds in California mixed conifer forests. We tested the efficacy of urea, borate, and a mixture of two locally collected Phlebiopsis gigantea strains in preventing pathogen colonization of fir stumps and separately, urea and borate as infection controls on experimental stem wounds. These were paired with a laboratory test on ~100 g wood blocks with and without a one-week delay between inoculation and treatment. Urea, borates, and Phlebiopsis treatments all significantly reduced the stump surface area that was colonized …


Diversity-Productivity Relationships In Forests Of The Southeastern United States: Leveraging National Inventory Data And Tree Functional Traits, Elizabeth Baach 2022 Mississippi State University

Diversity-Productivity Relationships In Forests Of The Southeastern United States: Leveraging National Inventory Data And Tree Functional Traits, Elizabeth Baach

Theses and Dissertations

Numerous studies have evaluated the relationship between biodiversity and productivity, with general trends suggesting a positive relationship. While most studies only use species richness, this study also analyzed how productivity changes with functional diversity and Shannon’s diversity index. Functional diversity gives important context to the examination of biodiversity-productivity relationships due to the direct link between organisms’ functional traits and their role in a given ecosystem. This study used data from the USDA Forest Service Forest Inventory and Analysis (FIA) database collected in Alabama, Louisiana, and Mississippi to estimate plot-level productivity and diversity. Structural equation modeling was used to determine the …


Climate Sensitive Diameter Growth Models For Major Tree Species In Mississippi, Sujan Subedi 2022 Mississippi State University

Climate Sensitive Diameter Growth Models For Major Tree Species In Mississippi, Sujan Subedi

Theses and Dissertations

Anticipated climate change and increasing wood demand require dependable diameter growth models for adaptive forest management. We used a mixed-effects modeling approach with Forest Inventory and Analysis (FIA) data to fit diameter growth models for loblolly pine, other softwood species (slash pine, shortleaf pine, and longleaf pine), sweetgum, and other hardwood (southern red oak, red maple, and water oak) species. Climatic variables coupled with individual tree attributes and competition factors improved climate insensitive models. Growth of loblolly pine and sweetgum was positively correlated with mean temperature of the coldest month. Mean temperature of the warmest month negatively influenced diameter growth …


Using Lidar To Estimate Carbon Sequestration Of Evergreen Trees At Eastern Washington University (Ewu) Campus, Cheney, Washington, Kristy A. Snyder 2022 Eastern Washington University

Using Lidar To Estimate Carbon Sequestration Of Evergreen Trees At Eastern Washington University (Ewu) Campus, Cheney, Washington, Kristy A. Snyder

2022 Symposium

EWU contains a variety of deciduous and evergreen trees across its campus, providing several benefits. However, no comprehensive record exists of the total number, location, species, or ages of these trees. This knowledge can inform facilities of proper care for individual trees and can be used to estimate carbon sequestration on campus. Traditional on-the-ground methods for assessing trees require tree cores or clinometers, making trees susceptible to pests or disease and leading to inaccurate results. Remote sensing using lidar data is a noninvasive, more precise method to measure tree height and subsequently assess tree age. This poster explores using point …


2020 Northeast Maple Business Benchmark, Mark Cannella, Christopher Lindgren 2022 The University of Vermont

2020 Northeast Maple Business Benchmark, Mark Cannella, Christopher Lindgren

UVM Extension Faculty Publications

The 2020 production season began just as the Covid-19 pandemic was emerging across the United States. Most states quickly enacted “essential industry” provisions that enabled agricultural and forestry operations to remain active assuming their workers were healthy and willing to report to work. Lingering policy and regulatory issues faced maple producers in the coming months as the pandemic disruptions continued. While many businesses faced short term cash flow challenges the overall maple demand rebounded and exceeded expectations for growth by the end of 2020.

The 2020 Northeast Maple Business Benchmark report documents the eight year of financial record analysis for …


Historical And Future Role Of Wilmar Palm Oil In Deforestation Of Indonesian Borneo, Sam Coroniti III 2022 University of South Carolina - Columbia

Historical And Future Role Of Wilmar Palm Oil In Deforestation Of Indonesian Borneo, Sam Coroniti Iii

Senior Theses

Borneo is one of the most biologically diverse locations on Earth, with thousands of endemic and rare species forming unique and intricate relationships throughout the ecosystems. Orangutans, elephants, leopards, tigers, rhinos, and many more species call this island their home, although population levels for all of the mentioned species have been in seriously decline over recent decades. The loss of primary rainforest that provides the most critical habitat for these species has occurred at the highest rate that has ever been seen on Earth, leading to extreme land conversion and greenhouse gas producing operations. The primary driver of these actions …


Disturbance Reduces Fungal White-Rot Litter Mat Cover In A Wet Subtropical Forest, D. Jean Lodge, Ashley E. Van Beusekom, Grizelle González, Mareli Sánchez-Julia, Sarah Stankavich 2022 USDA Forest Service Luquillo

Disturbance Reduces Fungal White-Rot Litter Mat Cover In A Wet Subtropical Forest, D. Jean Lodge, Ashley E. Van Beusekom, Grizelle González, Mareli Sánchez-Julia, Sarah Stankavich

USDA Forest Service / UNL Faculty Publications

Fungi that bind leaf litter into mats and produce white-rot via degradation of lignin and other aromatic compounds influence forest nutrient cycling and soil fertility. Extent of white-rot litter mats formed by basidiomycete fungi in Puerto Rico decreased in response to disturbances—a simulated hurricane treatment executed by canopy trimming and debris addition in 2014, a drought in 2015, a treefall, and two hurricanes 10 days apart in September 2017. Percent fungal litter mat cover ranged from 0.4% after Hurricanes Irma and Maria to a high of 53% in forest with undisturbed canopy prior to the 2017 hurricanes, with means mostly …


Conk1 - Forest Pathology Specimen, Robert Z. Selden Jr. 2022 Heritage Research Center, Stephen F. Austin State University

Conk1 - Forest Pathology Specimen, Robert Z. Selden Jr.

CRHR: Archaeology

Pathology specimen.


Drought, Tree Mortality, And Regeneration In Northen California, Sophia LB Lemmo 2022 Cal Poly Humboldt

Drought, Tree Mortality, And Regeneration In Northen California, Sophia Lb Lemmo

Cal Poly Humboldt theses and projects

The 2012-2016 California drought was the most severe in the state’s recorded history, contributing to the death of millions of trees. While the effects of this drought on forests are relatively well studied in the central and southern Sierra Nevada, less is known about its effects on the heavily timbered and diverse forests of northern California. Through sampling 54 0.25 ha plots in northern California, this study compared tree mortality and regeneration patterns before, during, and after California’s most recent record-setting drought. This study evaluated 1) the influence of habitat and competitive covariates on mortality and regeneration trends using ridge …


Invasive Plants Watch List: 2022, Allison Zach 2022 University of Nebraska-Lincoln

Invasive Plants Watch List: 2022, Allison Zach

Nebraska Invasive Species Program

The purpose of the weed watch list is to collect data on the distribution of invasive plants found in various Nebraska counties. Counties were divided up into ‘ecoregions’ based on the Nebraska Game & Parks Commission’s Legacy Plan (map of regions below). The plants in the watch list have been identified based on their invasiveness in surrounding states and their increasing range in Nebraska. Data collected on watch list plant species distribution has been used to support the listing or delisting of noxious weeds. Plant species in the weed watch list are categorized based on early detection and rapid response …


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