Environmental Studies Commons^™

Reduction Of Ghg Emissions Using Zeolite 4a Under Different Fertilizer Usages In Rice Cultivation, Patthanant Natpinit, Borisut Chantrawongphaisal, Rewadee Anuwattana, Thitirat Ditkaew, Chotika Kongsomboon, Phavit Thapnui, Phongsak Hongcharoensri

Applied Environmental Research

This investigation examined the potential of zeolite 4A to reduce emission of greenhouse gases (GHGs) in rice cultivation under different fertilizer regimes. A completely randomized design was used with four treatments (different fertilizer application method) and 2 blocks (zeolite 4A application, using rice variety RD-41 sown at a seed rate of 15.625 g m-2, and harvested in 105 d in Lam Ta Khong Research Station, Nakhon Ratchasima. The experimental results demonstrated that significant reduction in GHG emissions in zeolite 4A treated plots, either alone or in combination with chemical fertilizers, with GHG reduction of 43.27 % and 34.69 %, respectively. …

Synthesis Of Calcium Oxide From River Snail Shell As A Catalyst In Production Of Biodiesel, Sasiprapha Kaewdang, Rotjapun Nirunsin

Applied Environmental Research

This research studied synthesis of calcium oxide from river snail shells by calcination at 700,800 and 900 °C for 4 h, and its subsequent use as a catalyst for biodiesel production. The calciumoxide fraction in calcined river snail shell was analyzed by X-ray fluorescence (XRF), X-ray diffraction (XRD) and scanning electron microscopy (SEM). The XRF result showed calciumoxide levels of 59.499 %, 70.113 % and 73.88 1%, respectively, at corresponding calcination temperatures of 700, 800 and 900 °C. The SEMimages revealed porous, rough, and fragile surfaces which became agglomerated at elevated temperatures. The calcium oxide obtained from each calcination temperature …

Assessment Of Hearing Loss Among Workers In A Power Plant In Thailand, Pensri Watchalayann, Laksana Laokiat

Applied Environmental Research

Noise exposure in the working environment is a major cause of hearing impairment for workers; an audiogram hearing threshold level above 20 dB is considered irregular. In this study, audiometric data were analyzed with the objective of assessing hearing loss among power plant workers based on their age, noise exposure level, years of working, and work characteristics. A cross-sectional study was conducted to assess hearing level data for 672 workers reserved by the Health Care Unit of the power plant. The most recent audiometric data presented during 2013-2015 were used in the statistical analysis at 5 % level of significance. …

Microbial Synthesis And Characterization Of Silver Nanoparticles Using Alternaria Alternata, Sarafadeen O. Kareem, Oluwagbenga T. Familola, Adejare R. Oloyede, Enock O. Dare

Applied Environmental Research

In this study, extracellular biosynthesis of silver nanoparticles (AgNPs) was carried out using Alternaria alternata. AgNPs were synthesized using vegetative and cell-free filtrate methods. Silver nitrate (AgNO3) solution was reduced with fungal mycelial mass and cell-free filtrate at a ratio of 1:4 (v/v). Further, the effects of biosynthesis parameters (reaction time, reaction temperature, light and dark incubation, and static and agitated conditions) were determined. The structural integrity of the synthesized AgNPs was investigated through UV-visible spectrophotometry, X-ray diffraction (XRD) analysis, and transmission electron microscopy (TEM). Parameter optimization revealed that cell-free filtrate AgNP synthesis at 40 °C with constant agitation and …

How Are Interannual Variations Of Land Surface Phenology In The Highland Pastures Of Kyrgyzstan Modulated By Terrain, Snow Cover Seasonality, And Climate Oscillations? An Investigation Using Multi-Source Remote Sensing Data, Monika Anna Tomaszewska

Electronic Theses and Dissertations

In the semiarid, continental climates of montane Central Asia, with its constant moisture deficit and low relative humidity, agropastoralism constitutes the foundation of the rural economy. In Kyrgyzstan, an impoverished, landlocked republic in Central Asia, herders of the highlands practice vertical transhumance—the annual movement of livestock to higher elevation pastures to take advantage of seasonally available forage resources. Dependency on pasture resource availability during the short mountain growing season makes herds and herders susceptible to changing weather and climate patterns. This dissertation focuses on using remote sensing observations over the highland pastures in Kyrgyzstan to address five interrelated topics: (i) …

Letter From The Dean, Deacue Fields

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

A Message From The Associate Dean Of The Honors College And Co-Chair Of The Service Learning Initiative, Jennie Popp

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

Discovery: The Student Journal Of Dale Bumpers College Of Agricultural, Food And Life Sciences - Volume 20 2019, Several Authors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

Recovering Our Roots: The Importance Of Salish Ethnobotanical Knowledge And Traditional Food Systems To Community Wellbeing On The Flathead Indian Reservation In Montana., Mitchell Rose Bear Don't Walk

Graduate Student Theses, Dissertations, & Professional Papers

This thesis provides a culturally-comprehensive review of the plants utilized for food in the Bitterroot Salish tribe of northwestern Montana. As part of the larger Confederated Salish and Kootenai Tribes (CS&KT) of the Flathead Indian Reservation, the Bitterroot Salish historically utilized hundreds of plants for food, medicine and hygiene. This thesis aims to highlight food plants and their important cultural components. The information herein is a combination of history, ethnography, linguistics, ethnobotany, and first-hand experience with the current Salish community to provide a holistic framework of understanding traditional food plants today. A comprehensive plant list is provided with Latin, Salish …

The Impact Of Industrial Agriculture On Social-Ecological Resilience: A Case Study Of The Fairfield Bench, Montana, Anne Preston Harney

Graduate Student Theses, Dissertations, & Professional Papers

Agricultural systems can be understood as social-ecological systems, in which humans and the natural world interact with and influence each other. The concept of resilience within social-ecological systems has gained considerable attention in recent years. Resilience is generally defined as the system’s ability to absorb and adapt to stressors while still maintaining a similar functioning state. With the major challenges created by the overarching system of industrial agriculture, such as weed resistance to herbicides, water pollution, market consolidation, and declining numbers of farmers, resilience in agricultural systems is a critical concept to explore and understand. However, despite the popularity of …

Environmental Values Of California Winegrape Growers And The Use Of Barn Owls (Tyto Alba) As A Tool For Integrated Pest Management, Brooks R. Estes

Cal Poly Humboldt theses and projects

Landscape conversion and impacts of synthetic pesticides from agriculture pose threats to natural habitats critical to preserving biodiversity and ecosystem services. Pest management is a concern for all agriculture, and many conventional practices can negatively affect the environment through drift, runoff, and harming non-target species. Winegrapes are particularly at risk of damage from rodents, which can girdle vines and destroy root systems.

One alternative to reduce rodent numbers that has shown promise in agriculture is the use of barn owl (Tyto alba) boxes. The Johnson Lab at Humboldt State University has been researching barn owl behavior and ecology …

The Enbridge Line 3 Replacement Pipeline: Attitudes, Symbolism, And Geography, Catherine W. Fraser

Honors Theses

Oil pipelines, such as the Keystone XL and Dakota Access pipelines, are increasingly controversial and contested in the United States. Since its proposal in 2015, the Enbridge Line 3 Replacement (L3R) pipeline in Minnesota has also generated considerable debate. People who support and oppose oil pipeline projects are influenced by their ideologies, core values, partisan learnings, age, identity, and place attachment, as well as their proximity to new energy projects. However, the ability of any one variable, like spatial proximity or age, to predict attitudes towards new energy projects is debated. I conducted a literature review on attitudes towards energy …

Belonging While Black At Lake Merritt: The Black Spatial Imaginary And Place-Making In Oakland, Ca, Betel Solomon Tesfamariam

Pomona Senior Theses

This thesis aims to demonstrate how the processes of gentrification and displacement are interrelated processes that invent new ways of perpetuating anti- blackness in the U.S. I demonstrate this through an engagement with Christina Sharpe’s (2016) analysis of the imagery of the wake, the ship, the hold, and the weather as axis points that position Black life in the afterlife of slavery—how the conditions of slavery are ongoing today—presenting the racist encounters at Lake Merritt as illustrative examples. In her most recent book, In the Wake: On Blackness and Being, Sharpe (2016) deploys an interdisciplinary approach to critically theorize …

A Comparison Of Neighborhood-Scale Interventions To Alleviate Urban Heat In Doha, Qatar, Salim Ferwati, Cynthia Skelhorn, Vivek Shandas, Yasuyo Makido

Urban Studies and Planning Faculty Publications and Presentations

Recent evidence suggests that many densely populated areas of the world will be uninhabitable in the coming century due to the depletion of resources, climate change, and increasing urbanization. This poses serious questions regarding the actions that require immediate attention, and opportunities to stave off massive losses of infrastructure, populations, and financial investments. The present study utilizes microclimate modeling to examine the role of landscape features as they affect ambient temperatures in one of the fastest growing regions of the world: Doha, Qatar. By modeling three study sites around Doha—one highly urbanized, one newly urbanizing, and one coastal low-density urbanized—the …

Building An Environmental State: A Comparative Analysis Of Environmental State Formation In Germany And China, Russell Adam

Government and International Relations Honors Papers

What are environmental states, how do they form and where can they can be found? As ecosystems around the world collapse under the pressure of human activity, the role of the state is growing to include environmental protection as a key function. The concept of the environmental state has typically been applied to likely candidates in the developed world where wealth and relatively free public spheres have allowed for active environmental movements. It is increasingly clear however, that environmental degradation is disproportionately impacting states in the Global South. Because of this, it is necessary to consider whether or not environmental …

Women In The Wage Economy: A New Gendered Division Of Labor Amongst The Inuit, Hannah Buehler

Pitzer Senior Theses

Inuit constructions of gender in the pre-colonial period were centered around a gendered division of subsistence tasks. It is through this division of labor which gender roles, gendered socialization and spousal roles were formed. However, during the colonial period Inuit subsistence and the role it plays in Inuit society was rapidly and drastically changed. By analyzing the work of three different Arctic ethnographers documenting Inuit subsistence in different time periods and national contexts, this thesis will analyze how political, economic and environmental change in the Arctic has altered Inuit subsistence practices from European contact through the contemporary era. By analyzing …

Towards A Learning System For University Campuses As Living Labs For Sustainability, L.A. Verhoef, M. Bossert, J. Newman, Filipa Ferraz, Z.P. Robinson, Y. Agarwala, P. Wolff, P. Jiranek, C. Hellinga

Articles

Universities, due to their sizeable estates and populations of staff and students, as well as their connections with, and impact within, their local and wider communities, have significant environmental, social and economic impacts. There is a strong movement for universities to become leaders in driving society towards a more sustainable future, through improving the sustainability of the built environment and the universities’ practices and operations, and through their educational, research and wider community engagement missions. Around the globe the concept of ‘Living Labs’ has emerged as an instrument to integrate these different aspects to deliver sustainability improvements, through engaging multiple …

Floodplains Provide Important Amphibian Habitat Despite Multiple Ecological Threats, Meredith Holgerson, Adam Duarte, Marc P. Hayes, Michael J. Adams, Julie A. Tyson, Keith A. Douville, Angela L. Strecker

Environmental Science and Management Faculty Publications and Presentations

Floodplain ponds and wetlands are productive and biodiverse ecosystems, yet they face multiple threats including altered hydrology, land use change, and non-native species. Protecting and restoring important floodplain ecosystems requires understanding how organisms use these habitats and respond to altered environmental conditions. We developed Bayesian models to evaluate occupancy of six amphibian species across 103 off-channel aquatic habitats in the Chehalis River floodplain, Washington State, USA. The basin has been altered by changes in land use, reduced river–wetland connections, and the establishment of non-native American bullfrogs (Rana catesbeiana = Lithobates catesbeianus) and centrarchid fishes, all of which we hypothesized could …

Towards Food Justice: Strategies Of Community Engagement For Local Food Nonprofits, Garrett Stern

School of Professional and Continuing Studies Nonprofit Studies Capstone Projects

Over the past two decades there had been a significant shift in American values around food and health. The increase of diet-related illness and the growing awareness of the local food movement have helped to shape the discourse on healthy, nutritious, sustainably grown food. Food justice advocates and organization have inserted social justice principals of equity and self-determination into the dialogue of health and food. There has been a similar shift in the nonprofit sector in regard to local food programing, with local food nonprofits advocating for equity and inclusion in nonprofit food programing. Community engagement is key to putting …

Water Use In Confined Animal Feeding Operations (Cafos) In Minnesota: Who’S Keeping Track?, Dara Meredith Fedrow

Graduate Student Theses, Dissertations, & Professional Papers

Confined animal feeding operations (CAFOs) are highly concentrated feedlots that raise large numbers of livestock with an emphasis on efficiency and maximizing output. Hog and dairy feedlots in Minnesota are shrinking in number, yet growing in size. In hand with the rise of CAFOs, water scarcity is a growing concern as the effects of climate change worsen and the human population increases. Though Minnesota is a state of abundant water, it is not evenly distributed throughout the state raising concerns about sustainable water usage.

This paper describes and analyzes how Minnesota’s water appropriation permit system is overseeing water usage in …