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Contamination Assessment Of Heavy Metals In Agricultural Soil, In The Liwa Area (Uae), Ahmed A. Al-Taani, Yousef Nazzal, Fares M. Howari, Jibran Iqbal, Nadine Bou Orm, Cijo Madathil Xavier, Alina Bărbulescu, Manish Sharma, Cristian Stefan Dumitriu

All Works

The Liwa area is a primary food production area in the United Arab Emirates (UAE) and has intensively been used for agriculture. This study investigates the pollution levels with heavy metals in agricultural soils from the Liwa area. Thirty-two soil samples were analyzed for Mn, Zn, Cr, Ni, Cu, Pb, Cd, Co, and As. Results revealed that heavy metal levels varied in the ranges 220.02– 311.21, 42.39–66.92, 43.43–71.55, 32.86–52.12, 10.29–21.70, 2.83–8.84, 0.46–0.69, 0.03–0.37 mg/kg for Mn, Zn, Cr, Ni, Cu, Pb, Cd, Co, and As, respectively. All samples presented low As concentrations with an average of 0.01 mg/kg. The variations …

Cultivating Historic Farms: A Study Of Late-Nineteenth Century Maryland Farms, Sarah N. Janesko

Northeast Historical Archaeology

This study examines late-19th century farmsteads in Anne Arundel County, Maryland to measure and explain changes in agriculture and the effect of farming strategies on the local landscape. Agricultural census data from 1850–1880 in the county’s First Election District are used to measure significant changes in crop production after the Civil War. From this local level analysis, one farmstead is analyzed to understand those agricultural changes at the household level. Results from exploratory statistics, two-sided independent t tests, and one-way analysis of variances demonstrate that mean production of tobacco, wheat, and corn decreased significantly in the decades after the Civil …

Enhancing Wku Sustainable Food Systems Through Education And Local Agriculture Development, Chloe Cooper

Mahurin Honors College Capstone Experience/Thesis Projects

In an effort to increase the amount of locally sourced food utilized by dining services at WKU, the Office of Sustainability, WKU Restaurant Group, and the WKU Agriculture & Research Education Center have partnered to establish garden spaces on campus properties. This project developed a detailed plan for implementation of this effort. In addition, this project established a plan to educate students and the local community alike on the benefits of sustainable farming and locally-sourced food, while also creating profiles on local farmers from whom the university could buy crops in order to further supplement items for dining services. Using …

Sediment Nutrient Dynamics In Fondriest Agricultural Settling Pond, Marie Grace Bezold

Browse all Theses and Dissertations

Excess loading of nitrogen (N) and phosphorus (P) is a serious global problem and has numerous negative impacts on water quality of aquatic ecosystems including eutrophication, harmful algal blooms, and hypoxia. Anthropogenic activities (such as the Haber-Bosch process, burning of fossil fuels, sewage treatment, and manure reuse) have led to excess N loading to aquatic systems. Sediment N dynamics were examined from Oct 2019 – Oct 2020 in an agricultural settling pond connected to a constructed wetland adjacent to an agricultural field. Intact sediment cores were amended with 15N for continuous-flow incubations to measure denitrification and N fixation rates, as …

Strategies For Reducing Greenhouse Gases From Liquid Dairy Manure, Vera Sokolov

Theses and Dissertations (Comprehensive)

Livestock production, including the storage, handling, and spreading of manure, are among the largest contributors to greenhouse gas emissions from the agricultural sector. Liquid dairy manure storages are hot spots of methane (CH₄), nitrous oxide (N₂O) and ammonia (NH₃). Both CH₄ and N₂O are greenhouse gases (GHG) which contribute to global warming, while NH₃ is an indirect source of N₂O and a risk to human health. Reducing emissions from manure storages is important not only for protection of environment and humans, but also for conserving the nutrients in …

An Analysis Of Irrigation Policy In The Mississippi Delta, Brooklyn Mooney

Honors Theses

This thesis aims to provide a sustainable irrigation alternative that could be easily adopted by farmers in the Mississippi Delta in order to improve water resource management. The Mississippi Alluvial Valley Aquifer, the groundwater system that lies under the Mississippi Delta, is being depleted at rapid rates due to industrial farming and unsustainable, outdated irrigation methods. The intent of this research is to evaluate the water scarcity problem in the Mississippi Delta by assessing water extraction rates and the progression of agriculture in the region. Then, various irrigation methods will be evaluated before a final suggestion is made. Through extensive …

Essays On Climate Change-Related Extreme Events, Alvin E. Harris

Dissertations

There are increasing and urgent calls for global economies to join in the fight against the impacts of climate change (World Bank, 2020). With reports such as the World Bank (2020) of climate change costing billions of dollars in losses for economies, the purpose of my dissertation is to examine the effects of climate change-related extreme events and their potential economic effects in three areas: agriculture, migration, and the labor market.

My first essay focuses on the factors that influence farmers’ perception of risk and adaptive strategies against the effects of climate change-related extreme events. I examine whether farmers’ social …

Communication, Partnerships, And The Role Of Social Science: Conservation Delivery In A Brave New World, Aritree Samanta, Francis R. Eanes, Benjamin Wickerham, Mary Fales, Brian R. Bulla, Linda S. Prokopy

All Faculty Scholarship

© 2019 Taylor & Francis Group, LLC. The Saginaw Bay Regional Conservation Partnership Program (RCPP) in Michigan is an innovative conservation effort organized to address water quality impairments involving a unique collaboration between conservation organizations, agronomists, universities, commodity groups, and agribusinesses. We track the evolution and adaptation of the Saginaw Bay RCPP, and the collaboration among the traditional and nontraditional conservation partners. Our reflections are organized around three key lessons: vertical and horizontal communication challenges; contextual and structural constraints; barriers that remain between private and public sector entities for this and alternative conservation-delivery models. Lessons from this evaluation will inform …

Estimation Of Evapotranspiration And Energy Fluxes Using A Deep-Learning-Based High-Resolution Emissivity Model And The Two-Source Energy Balance Model With Suas Information, Alfonso F. Torres-Rua, Andres Ticlavilca, Mahyar Aboutalebi, Héctor Nieto, Maria Mar Alsina, Alex White, John H. Prueger, Joseph Alfieri, Lawrence Hipps, Lynn Mckee, William Kustas, Calvin Coopmans, Nick Dokoozlian

Civil and Environmental Engineering Faculty Publications

Surface temperature is necessary for the estimation of energy fluxes and evapotranspiration from satellites and airborne data sources. For example, the Two-Source Energy Balance (TSEB) model uses thermal information to quantify canopy and soil temperatures as well as their respective energy balance components. While surface (also called kinematic) temperature is desirable for energy balance analysis, obtaining this temperature is not straightforward due to a lack of spatially estimated narrowband (sensor-specific) and broadband emissivities of vegetation and soil, further complicated by spectral characteristics of the UAV thermal camera. This study presents an effort to spatially model narrowband and broadband emissivities for …

Transformative Change In Rural Ethiopia: The Impact Of Small- And Medium-Scale Irrigation, Logan Cochrane, Anne Cafer

Journal of Rural Social Sciences

Rural livelihoods in Ethiopia are vulnerable due to their reliance upon variable rainfall and the lack of access to irrigation. Irrigation coverage in the country is low, as the existing systems tend to cover state-run and commercial operations. There is significant potential for irrigation to play a transformative role in rural lives and livelihoods. Much of the evidence available in Ethiopia focuses upon technical studies of irrigation systems or impacts on households after gaining access to irrigation. This article highlights the causes and pathways of change. We focus on more financially-viable and environmentally-sound small- and medium-scale systems, versus the large-scale …

Climate Change Adaptation In Highland Ecuador: Intersections Of Gender, Geography, And Knowledge In Farming Communities, Dinka Natali Caceres Arteaga

Latin American Studies ETDs

This dissertation uses a feminist political ecology perspective to explore the socioeconomic impacts of climate change in Ecuador, especially but not limited to the agriculture sector. It is based on the use of mixed methods that allowed the participation and validation of the local population, surpassing their role as beneficiaries to co-authors of this research.

The significance of this study relies on the position the local population holds in the fields of human geography, under a community local-planning perspective, as they attempted to collaborate in the process of adaptation to climate change by presenting analysis and calculation of an index …

Ecological And Economic Benefits And Risks Of Using Botanical Insecticides In Tanzanian Farms, Lilia Garcia

Independent Study Project (ISP) Collection

Insect damage is a major concern for smallholder farmers in developing countries like Tanzania. Synthetic insecticides can tame infestations, however they can be expensive, inaccessible, and their misuse can threaten farmer health and ecological conditions. Botanical insecticides are cheap alternatives to treat infestations while preserving beneficial insects such as pollinators, predators, and parasitoids. This study assesses how both synthetic and botanical insecticides affect beneficial insects, crop yield and profit/costs. This study finds botanical insecticides slightly less harmful towards non-target insects. Botanical insecticides seldomly improve crop yields but usually result in a higher profit/lower cost. Due to high variation in ecological …

Projected Impacts Of Climate Change On Risk Of Spring Frost And Fire Blight For Malus Domestica, Paul J. Racco

Theses and Dissertations

The impact of climate change is projected for apple phenology, frost attrition, and fire blight risk under the highest emissions scenario through the 21st century.

Analytical Variables Leading To The Involvement Of Consumers And Farmers In Sustainable Urban Agriculture In The Indianapolis Region, Olivia Holabird

Undergraduate Honors Thesis Collection

200,000 people living in Indianapolis have low food access, most of whom live in low-income areas. One solution to these food deserts is sustainable urban agriculture. I investigated what factors bring people living in the Indianapolis region to become involved in sustainable agriculture in the hopes of increasing future involvement. To do this, I conducted 12 semi-structured interviews with 6 farmers and 6 consumers across the Indianapolis region. I used Vermeir and Verbeke’s analytical categories of values, social norms, certainty, perceived availability, and perceived influence. Through my interviews, however, I found my own variables of sense of identity, accessibility, health, …

Issues And Perspective On The Covid-19 And Nepal: An Introduction, Ambika P. Adhikari, Basu Sharma

Himalayan Research Papers Archive

Even though Nepal has relatively fewer Covid-19 cases as of 24 September 2020 (about 70,000 cases and more than 450 deaths), the numbers are on the rise. If this trend continues for a while, the likely consequences of the Pandemic would be no less severe than elsewhere. Further, Nepal’s next-door neighbor India is now experiencing a rapid rise in the virus infection rate and virus-related death toll. In fact, as of 24 September, 2020, India is seeing some about six million total Covid-19 cases, and more than 92,000 deaths. As India and Nepal have open borders, and as India is …

Toward A Holistic Agricultural Student Recruitment Model: A National Analysis Of The Factors Affecting Students’ Decision To Pursue An Agricultural Related Degree, Antoine J. Alston, Richie Roberts, Chastity W. English

Journal of Research in Technical Careers

Currently, the agricultural industry struggles to fill positions with qualified agricultural workers. Therefore, it is critical to attract high caliber individuals to agricultural degree programs that are prepared to enter the workforce with the skills needed to navigate complex issues and problems. The purpose of this national study was to identify key factors that influence the recruitment of agriculture students at land-grant and non-land-grant universities. Using Chapman’s model of student success as our conceptual lens, we tested 66 factors identified in the literature as successful recruitment strategies for colleges of agriculture based on students’ personal characteristics as well as key …

Hydrogen Peroxide: A Grower’S Best Friend?, Mitchell Eicher-Sodo

Theses and Dissertations (Comprehensive)

Hydrogen peroxide (H₂O₂) is an oxidizing agent used to disinfect irrigation systems (e.g. nutrient solution and equipment) used in controlled environment plant production and produces no harmful by-products. The action of H₂O₂ is non-selective, and therefor H₂O₂ will oxidize all components of the irrigation water as well as tissues from the greenhouse crops being irrigated. The phytotoxic effect H₂O₂ has on common greenhouse crops is not well understood, requiring detailed characterization and determination of threshold concentrations. Thresholds within the thesis were based on applied H₂O …

Developing An Odonate-Based Index For Monitoring Freshwater Ecosystems In Rwanda: Towards Linking Policy To Practice Through Integrated And Adaptive Management, Erasme Uyizeye

Antioch University Dissertations & Theses

Worldwide, the decline of biodiversity in freshwater ecosystems is occurring at an alarming rate, due to anthropogenic threats, which directly impact humans in a variety of ways. Freshwater ecosystems occupy an integral part of political, socio-economic and ecological spheres. Integrated Watershed Management (IWM) and Adaptive Management (AM) conceptual frameworks provide an underpinning holistic platform from which to evaluate the performance of policies and actions on the ground in relation to freshwater ecosystem management. I investigate the extent to which environmental policies and practices embrace IWM and AM frameworks in Rwanda. Furthermore, this dissertation develops an odonate-based ecological monitoring tool, referred …

Breaking Ground On New Agricultural Models: Industrial Agriculture And The Local Food Movement, Elizabeth Nealon

Student Theses 2015-Present

This paper discusses and examines the longstanding issues surrounding industrial food production as it currently exists and the various ways that purpose-driven enterprises and environmentally-conscious consumers in the United States have been able to steer food production in a more sustainable direction. Over the course of the technological revolution, people living in metropolitan areas have become so distanced from farms and the processes of food production that many are ignorant of the realities of the food industry. Chapter 1 addresses these issues by presenting quantitative data that lays out a timeline of the evolution of the food and agriculture industry …

The Path To Building Resilience In Sri Lankan Rice Farms, Tarea Karunaratne

Student Theses 2015-Present

Rice cultivation in Sri Lanka roots back to its very first Kingdom in 161 B.C, and is still an incredibly populous industry to this day with an estimated 708,000 hectares of land being used for paddy cultivation. However, due to a changing global climate and an increase in natural disasters worldwide, Sri Lanka’s rice industry and the millions of people dependent on it have been greatly affected. This paper seeks to explore resilience building in a Sri Lankan context, taking into account the cultural and socio-economic factors that may influence how rice is farmed and who farms it, and to …

Climate Change And Big Business: The Endless Cycle, Angela Steele

Capstone Projects and Master's Theses

Climate change, as it stands, is a large topic. As it relates to business, it grows exponentially, yet relates to every single one of us. Before the nineteenth century, climate cycles were mostly naturally occurring. Unfortunately, in recent years anthropogenic (human) causes have been introduced. The largest problem is carbon dioxide, which is produced from numerous human activities but largely from the burning of fossil fuels, and leads to massive warming effects on our planet. That’s where business comes in: companies, such as those within the agriculture, fossil fuel, and sunscreen industries, seek multi-million dollar profits off of the warming …

Climate-Smart Agriculture: Building Resilience For Women Farmers In Kalchebeshi, Nepal, Annika Ruben

Independent Study Project (ISP) Collection

This case study outlines women’s involvement in climate-smart agriculture and key climate adaptation strategies which are being implemented in the town of Kalchebeshi, Nepal. Kalchebeshi is considered a Resilient Mountain Village because of the town’s integrated approach to addressing climate change and building resilience for farmers. Key findings examined gender differences in farming responsibilities and the significance of farmers’ groups in women’s overall decision making and community involvement. Additionally, changes in water management and pesticide use have been shown to have a positive impact on the lives of women farmers in Kalchebeshi. This paper reinforces the importance of involving vulnerable …

Campus-Based Agriculture: The Future Of Food At Gettysburg College, Bryn K. Werley

Student Publications

This research investigates various methods for producing food on the campus of Gettysburg College in order to improve food sustainability. The transportation of food contributes to the increased use of fossil fuels, which in turn leads to global warming and climate change. By producing a larger portion of its food on-campus, Gettysburg College could reduce the amount of food transported to the school, thereby lessening the College’s environmental impact. Urban farming techniques, hydroponics, aquaponics, and greenhouse-based agriculture are explored as viable methods for achieving this goal. Examples of the use of these techniques on college campuses are drawn from Allegheny …

Eastern Iowa Farmers’ Attitudes Towards The Incorporation Of Prairie Strips In Agricultural Fields And Economic Incentives, Ashley E. Becker, Robin A. Anderson, Amy C. Blair

RURALS: Review of Undergraduate Research in Agricultural and Life Sciences

Extreme prairie habitat loss in Iowa due to the conversion of land to agricultural fields has resulted in negative consequences, including increased erosion, increased runoff, and decreased biodiversity. By incorporating prairie strips into agricultural fields, the aforementioned consequences can be minimized. This practice is the initiative of the Science-based Trials of Rowcrops Integrated with Prairie Strips (STRIPS) team at Iowa State University. The Natural Resources Conservation Service (NRCS) offers economic incentives for incorporating conservation practices like prairie strips, yet prairie strip use is not widespread. To examine this issue, the attitudes of ten farmers towards employing these practices were measured …

Sustainability Of Industrialized Agriculture, Fall/Winter 2002, Issue 5

Sustain Magazine

No abstract provided.

Local Foods, Fall/Winter 2013, Issue 27

Sustain Magazine

No abstract provided.

Letter To My Homeland, Vy Thuy Doan

EnviroLab Asia

"I never thought I would be returning back to Vietnam to study its environmental issues and in studying them, also unravel more of my identity," the author writes about her remarkable experience on the January 2018 EnviroLab Asia Clinic trip to Vietnam. Hers is a compelling meditation on the diasporic experience.

Negative Impacts Of The Beef Industry: Lab-Grown Meat, Stephanie Grass

WRIT: Journal of First-Year Writing

The beef industry is harmful to the environment and human health and alternative solutions must be implemented in order to mitigate the effects of climate change. Water and grain are used in agriculture in abundance despite the negative environmental effects it causes. Cattle are the biggest contributors to greenhouse gas emissions in the sector, also contributing to climate change. Antibiotics are used in large quantities without regard to potential future consequences. One potential solution for this problem is lab-grown beef, which demands very little from the consumer and would take pressure off the environmental issues the beef industry creates. Lab-grown …

Evaluating Agricultural Weather And Climate Services In Africa: Evidence, Methods, And A Learning Agenda, Catherine Vaughan, James Hansen, Philippe Roudier, Paul Watkiss, Edward Carr

Sustainability and Social Justice

Weather and climate services (WCS) are expected to improve the capacity of Africa's agricultural sector to manage the risks of climate variability and change. Despite this, a lack of evidence prevents a realistic analysis of whether such services are delivering on their potential. This paper reviews 66 studies that have evaluated outcomes and/or impacts of agricultural WCS in Africa, highlighting areas that have received relatively more attention as well as persistent gaps. While the evaluation of WCS outcomes is relatively straightforward, estimates of the number of people who access and use these services are uneven (covering a small number of …

The Value Of Farmland: Mapping Assessor Data To Understand Land Use Change, Lyndi Perry

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Ideas developed by regional economists have potential applications within the urban planning field. One potential application is toward conserving farmland, and within this thesis this topic is examined for the study area of Utah County, Utah. Using assessor data, a land value map is created and further used to develop a regional economic model and spatial models that were analyzed for patterns of land use change.

Findings show that representing land value as continuous surface maps is a useful approach. The maps reveal that Utah County has densified as its population increased while farmland loss still occurred in agriculturally-important areas. …