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- Creators: Barrett, The Honors College
- Creators: Kavazanjian, Edward
- Creators: Allenby, Braden
- Creators: Cadillo – Quiroz, Hinsby
Description
Community gardens are used worldwide to promote sustainable, urban living. They can be used to improve the physical, mental, emotional, and social health of the gardeners and volunteers who utilize their grounds. The gardens may also have a positive impact on the local environment and wider community. This study examines a community garden seeking to expand its involvement in the local neighborhood and searching for ways to include local residents in garden related activities. To this end, the garden was waiting for approval on their non-profit, 501(c)3 status, and was seeking additional data on local residents and perceptions of the garden's activities. This thesis first reviews the literature on the benefits community gardens provide for the individuals living in their communities and their impact on urban development. The thesis then turns to an analysis of one garden, Mesa Urban Garden, rooted in the Downtown District of Mesa, Arizona, and how they are impacting their neighborhood and how garden organizers can respond in new and creative ways to local residents.
ContributorsBooher, Samantha Rose (Author) / Glick, Jennifer (Thesis director) / Dumka, Larry (Committee member) / Barrett, The Honors College (Contributor) / Hugh Downs School of Human Communication (Contributor) / School of Sustainability (Contributor)
Created2014-05
Description
This honors thesis examines community gardens from throughout Phoenix, Arizona. It shows that community gardens have the potential to both support and hinder sustainability efforts, encourage community development, and increase food access. By measuring the temperature at various community gardens throughout Phoenix, AZ, community gardens were shown to minimize local effects of the urban heat island. Because they use water to survive and Phoenix, AZ is in a desert, this contributes to a depleting water supply. Interviews of gardeners from community gardens throughout Phoenix depicted that community gardens can provide sites for community development as well as promoting food access.
ContributorsBowersox, Diane Kathleen (Author) / Haglund, LaDawn (Thesis director) / Lyon, Mich (Committee member) / Barrett, The Honors College (Contributor) / WPC Graduate Programs (Contributor) / School of Accountancy (Contributor) / School of Politics and Global Studies (Contributor)
Created2014-05
Description
Community gardens are used worldwide to promote sustainable, urban living. They can be used to improve the physical, mental, emotional, and social health of the gardeners and volunteers who utilize their grounds. The gardens may also have a positive impact on the local environment and wider community. This study examines a community garden seeking to expand its involvement in the local neighborhood and searching for ways to include local residents in garden related activities. To this end, the garden was waiting for approval on their non-profit, 501(c)3 status, and was seeking additional data on local residents and perceptions of the garden's activities. This thesis first reviews the literature on the benefits community gardens provide for the individuals living in their communities and their impact on urban development. The thesis then turns to an analysis of one garden, Mesa Urban Garden, rooted in the Downtown District of Mesa, Arizona, and how they are impacting their neighborhood and how garden organizers can respond in new and creative ways to local residents.
ContributorsBooher, Samantha Rose (Author) / Glick, Jennifer (Thesis director) / Dumka, Larry (Committee member) / Barrett, The Honors College (Contributor) / Hugh Downs School of Human Communication (Contributor) / School of Sustainability (Contributor)
Created2014-05
Description
Community gardens have wide-reaching potential for addressing public health issues. However, of the thousands of gardens located in the United States, many lack rigorous planning and encounter crippling obstacles, like disinterest from community members, soon after implementation. This study created a processual typology to summarize steps in the implementation process for existing gardens described within peer-reviewed, academic journals and offers recommendations for more sustainably planning future garden projects up to ten years in advance. A systematic review was conducted to identify descriptions of community gardens in peer-reviewed, academic literature. A general logic model was used as a basic structure and themes for each step (inputs, activities, outputs, short/long term outcomes, impacts, and methods of evaluation) were summarized from the included studies to construct a processual typology for evaluating community garden implementation in the United States. This typology was then used to assess a case study of a garden in Des Moines, Iowa, which generated the author's interest in conducting this research after assisting with that space through an AmeriCorps community health program. Results showed that existing gardens shared common attributes and could be categorized according to one of two speeds of implementation ("regular" or "accelerated") and according to one of three types of organizational structure ("grassroots," "externally-organized," or "externally-managed"). The typology was assessed for limitations from having been based on a systematic review of only peer-reviewed, academic articles and, referring to its themes, was used to construct a logic model for a hypothetical community garden project. The processual typology developed in this study is limited in its power to summarize all existing community gardens but offers a first step toward informing the creation of logic models for future projects in order to improve sustainability and attain more funding.
ContributorsOlivas, Elijah Taylor (Author) / Magaña, Lisa (Thesis director) / MartÃÂnez, AirÃÂn (Committee member) / School of Human Evolution and Social Change (Contributor) / Barrett, The Honors College (Contributor)
Created2017-05
Description
Abstract
Local organic gardening once experienced great popularity with Americans. At one time promoted and prominent, local gardens became obscure, old-fashioned, and outmoded. However, in the last few decades, for various reasons, local organic gardening has made some progress. This study seeks to assist high-density, low-income, inner-city Americans, who often do not have have easy or affordable access to fresh whole food by creating sustainable, resilient, local, urban gardens. However, this effort does not attempt to address the needs of entire populations of census tracts, rather one suburban home, one small apartment complex, or one small community garden. O ne solution to the problems associated with food insecurity is to put the creativity and responsibility into the hands of those who need the food, allow them to work within a self-sustaining garden, and decide what to do with any excess food. W ith the help of Greg Peterson, Phoenix’s own urban farmer, this project set out to create a system using Phoenix’s limited amount of rainfall to create a aquaponic gardening system which will be used in micro-communities such as multi-family complexes, middle schools, or high schools, in order to help grow food for these communities and alleviate some of the difficulties of finding fresh food in the desert.
Local organic gardening once experienced great popularity with Americans. At one time promoted and prominent, local gardens became obscure, old-fashioned, and outmoded. However, in the last few decades, for various reasons, local organic gardening has made some progress. This study seeks to assist high-density, low-income, inner-city Americans, who often do not have have easy or affordable access to fresh whole food by creating sustainable, resilient, local, urban gardens. However, this effort does not attempt to address the needs of entire populations of census tracts, rather one suburban home, one small apartment complex, or one small community garden. O ne solution to the problems associated with food insecurity is to put the creativity and responsibility into the hands of those who need the food, allow them to work within a self-sustaining garden, and decide what to do with any excess food. W ith the help of Greg Peterson, Phoenix’s own urban farmer, this project set out to create a system using Phoenix’s limited amount of rainfall to create a aquaponic gardening system which will be used in micro-communities such as multi-family complexes, middle schools, or high schools, in order to help grow food for these communities and alleviate some of the difficulties of finding fresh food in the desert.
ContributorsField, John William (Author) / Hagen, Bjoern (Thesis director) / Kelley, Jason (Committee member) / School of Public Affairs (Contributor) / School of Geographical Sciences and Urban Planning (Contributor) / School of Sustainability (Contributor) / Barrett, The Honors College (Contributor)
Created2018-05
Description
Currently conventional Subtitle D landfills are the primary means of disposing of our waste in the United States. While this method of waste disposal aims at protecting the environment, it does so through the use of liners and caps that effectively freeze the breakdown of waste. Because this method can keep landfills active, and thus a potential groundwater threat for over a hundred years, I take an in depth look at the ability of bioreactor landfills to quickly stabilize waste. In the thesis I detail the current state of bioreactor landfill technologies, assessing the pros and cons of anaerobic and aerobic bioreactor technologies. Finally, with an industrial perspective, I conclude that moving on to bioreactor landfills as an alternative isn't as simple as it may first appear, and that it is a contextually specific solution that must be further refined before replacing current landfills.
ContributorsWhitten, George Avery (Author) / Kavazanjian, Edward (Thesis director) / Allenby, Braden (Committee member) / Houston, Sandra (Committee member) / Civil, Environmental and Sustainable Engineering Programs (Contributor) / Barrett, The Honors College (Contributor)
Created2013-05
Description
This thesis project utilizes Bolman & Deal’s (2017) four frames to analyze how the Internship experience at TigerMountain Foundation, a South Phoenix community garden nonprofit, can be optimized to help the organization more effectively reach its goals. A brief explanation of the organizational context and structure is given as well as an overview of the relationship between community gardening and decreasing recidivism, as well as TigerMountain’s position in a food desert. TigerMountain Foundation can ultimately be framed internally as a human resource and symbolic organization and externally as a political organization. The Internship program presents a political benefit to the organization and can benefit from some human resource and structural additions to the onboarding process and overall experience. The recommended additions include providing a thorough onboarding packet to Interns at orientation that includes a questionnaire, includes a brief overview of the organization in human resource framing, a contact sheet, and instruction sheets for commonly used systems. Other additions to the Internship experience include setting up a ratio of how many Internship hours can be earned at the gardens and farmers’ markets compared to working administratively, requesting that Interns send in their updated availability weekly for scheduling purposes, and the implementation of an “on-call” system for farmers’ market shifts.
ContributorsMason Johnston, Laurel Miranda (Author) / deLusé, Stephanie (Thesis director) / Gross, Jamesha (Committee member) / Department of Psychology (Contributor) / School of Politics and Global Studies (Contributor) / School of Human Evolution & Social Change (Contributor) / Barrett, The Honors College (Contributor)
Created2021-05
Characterization and Manipulation of Microbiomes From Arid Landfills for Improved Methane Production
Description
Environmentally harmful byproducts from solid waste’s decomposition, including methane (CH4) emissions, are managed through standardized landfill engineering and gas-capture mechanisms. Yet only a limited number of studies have analyzed the development and composition of Bacteria and Archaea involved in CH4 production from landfills. The objectives of this research were to compare microbiomes and bioactivity from CH4-producing communities in contrasting spatial areas of arid landfills and to tests a new technology to biostimulate CH4 production (methanogenesis) from solid waste under dynamic environmental conditions controlled in the laboratory. My hypothesis was that the diversity and abundance of methanogenic Archaea in municipal solid waste (MSW), or its leachate, play an important role on CH4 production partially attributed to the group’s wide hydrogen (H2) consumption capabilities. I tested this hypothesis by conducting complementary field observations and laboratory experiments. I describe niches of methanogenic Archaea in MSW leachate across defined areas within a single landfill, while demonstrating functional H2-dependent activity. To alleviate limited H2 bioavailability encountered in-situ, I present biostimulant feasibility and proof-of-concepts studies through the amendment of zero valent metals (ZVMs). My results demonstrate that older-aged MSW was minimally biostimulated for greater CH4 production relative to a control when exposed to iron (Fe0) or manganese (Mn0), due to highly discernable traits of soluble carbon, nitrogen, and unidentified fluorophores found in water extracts between young and old aged, starting MSW. Acetate and inhibitory H2 partial pressures accumulated in microcosms containing old-aged MSW. In a final experiment, repeated amendments of ZVMs to MSW in a 600 day mesocosm experiment mediated significantly higher CH4 concentrations and yields during the first of three ZVM injections. Fe0 and Mn0 experimental treatments at mesocosm-scale also highlighted accelerated development of seemingly important, but elusive Archaea including Methanobacteriaceae, a methane-producing family that is found in diverse environments. Also, prokaryotic classes including Candidatus Bathyarchaeota, an uncultured group commonly found in carbon-rich ecosystems, and Clostridia; All three taxa I identified as highly predictive in the time-dependent progression of MSW decomposition. Altogether, my experiments demonstrate the importance of H2 bioavailability on CH4 production and the consistent development of Methanobacteriaceae in productive MSW microbiomes.
ContributorsReynolds, Mark Christian (Author) / Cadillo-Quiroz, Hinsby (Thesis advisor) / Krajmalnik-Brown, Rosa (Thesis advisor) / Wang, Xuan (Committee member) / Kavazanjian, Edward (Committee member) / Arizona State University (Publisher)
Created2022
Description
Zero-Valent Metals (ZVM) are highly reactive materials and have been proved to be effective in contaminant reduction in soils and groundwater remediation. In fact, zero-Valent Iron (ZVI) has proven to be very effective in removing, particularly chlorinated organics, heavy metals, and odorous sulfides. Addition of ZVI has also been proved in enhancing the methane gas generation in anaerobic digestion of activated sludge. However, no studies have been conducted regarding the effect of ZVM stimulation to Municipal Solid Waste (MSW) degradation. Therefore, a collaborative study was developed to manipulate microbial activity in the landfill bioreactors to favor methane production by adding ZVMs. This study focuses on evaluating the effects of added ZVM on the leachate generated from replicated lab scale landfill bioreactors. The specific objective was to investigate the effects of ZVMs addition on the organic and inorganic pollutants in leachate. The hypothesis here evaluated was that adding ZVM including ZVI and Zero Valent Manganese (ZVMn) will enhance the removal rates of the organic pollutants present in the leachate, likely by a putative higher rate of microbial metabolism. Test with six (4.23 gallons) bioreactors assembled with MSW collected from the Salt River Landfill and Southwest Regional Landfill showed that under 5 grams /liter of ZVI and 0.625 grams/liter of ZVMn additions, no significant difference was observed in the pH and temperature data of the leachate generated from these reactors. The conductivity data suggested the steady rise across all reactors over the period of time. The removal efficiency of sCOD was highest (27.112 mg/lit/day) for the reactors added with ZVMn at the end of 150 days for bottom layer, however the removal rate was highest (16.955 mg/lit/day) for ZVI after the end of 150 days of the middle layer. Similar trends in the results was observed in TC analysis. HPLC study indicated the dominance of the concentration of heptanoate and isovalerate were leachate generated from the bottom layer across all reactors. Heptanoate continued to dominate in the ZVMn added leachate even after middle layer injection. IC analysis concluded the chloride was dominant in the leachate generated from all the reactors and there was a steady increase in the chloride content over the period of time. Along with chloride, fluoride, bromide, nitrate, nitrite, phosphate and sulfate were also detected in considerable concentrations. In the summary, the addition of the zero valent metals has proved to be efficient in removal of the organics present in the leachate.
ContributorsPandit, Gandhar Abhay (Author) / Cadillo – Quiroz, Hinsby (Thesis advisor) / Olson, Larry (Thesis advisor) / Boyer, Treavor (Committee member) / Arizona State University (Publisher)
Created2019
Description
Working in collaboration with the Clark Park Community Garden (CPCG), we sought to identify and implement practices and creative processes that increase community involvement and connection by further transforming the space into a community gathering place. Our primary goal was to foster greater community involvement within the garden through various methods while exploring our own creative outlets to represent what the concepts of “community” and “garden” mean to us.
When initially planning our project, we outlined a research process to conduct interviews with garden participants to determine the best practices for community garden connection-making. However, after our initial discussions with the CPCG Advisory Committee, it became clear that their goals could be better achieved through an applied project focusing on increasing community connection than from a research project. We have adopted our former research question--which asked how community gardens could serve as a means for community connection-- as our premise, and we seek to build upon it through the creation of programs, partnerships, and pieces of art that collectively expand the garden’s connection to its surrounding community. To begin this process, we worked with the leaders of the CPCG to identify the group’s main goals that they sought to achieve with our support. In collaboration with the CPCG Garden Advisory Committee, the three goals that we identified were: 1) increasing neighborhood participation in the space, 2) launching the site’s new subscription program, and 3) transforming the garden space into a place of community.
When initially planning our project, we outlined a research process to conduct interviews with garden participants to determine the best practices for community garden connection-making. However, after our initial discussions with the CPCG Advisory Committee, it became clear that their goals could be better achieved through an applied project focusing on increasing community connection than from a research project. We have adopted our former research question--which asked how community gardens could serve as a means for community connection-- as our premise, and we seek to build upon it through the creation of programs, partnerships, and pieces of art that collectively expand the garden’s connection to its surrounding community. To begin this process, we worked with the leaders of the CPCG to identify the group’s main goals that they sought to achieve with our support. In collaboration with the CPCG Garden Advisory Committee, the three goals that we identified were: 1) increasing neighborhood participation in the space, 2) launching the site’s new subscription program, and 3) transforming the garden space into a place of community.
ContributorsMercer, Madeline (Co-author) / Shea, Jacqueline (Co-author) / Cloutier, Scott (Thesis director) / Vitullo, Juliann (Committee member) / School of Sustainability (Contributor) / Department of Psychology (Contributor) / Barrett, The Honors College (Contributor)
Created2020-05