Matching Items (51)
Description
Climate change presents the urgent need for effective sustainable water management that is capable of preserving natural resources while maintaining economical stability. States like California rely heavily on groundwater pumping for agricultural use, contributing to land subsidence and insufficient returns to water resources. The recent California drought has impacted agricultural production of certain crops. In this thesis, we present an agent-based model of farmers adapting to drought conditions by making crop choice decisions, much like the decisions Californian farmers have made. We use the Netlogo platform to capture the 2D spatial view of an agricultural system with changes in annual rainfall due to drought conditions. The goal of this model is to understand some of the simple rules farmers may follow to self-govern their consumption of a water resource. Farmer agents make their crop decisions based on deficit irrigation crop production function and a net present value discount rate. The farmers choose between a thirsty crop with a high production cost and a dry crop with a low production cost. Simulations results show that farmers switch crops in accordance with limited water and land resources. Farmers can maintain profit and yield by following simple rules of crop switching based on future yields and optimal irrigation. In drought conditions, individual agents expecting lower annual rainfall were able to increase their total profits. The maintenance of crop yield and profit is evidence of successful adaptation when farmers switch to crops that require less water.
ContributorsGokool, Rachael Shanta (Author) / Janssen, Marco (Thesis director) / Eakin, Hallie (Committee member) / School of Human Evolution and Social Change (Contributor) / Barrett, The Honors College (Contributor)
Created2016-05
Description
This paper explores patterns of declining sense of community found in many modern-day neighborhoods and maintains that this phenomenon presents a level of vulnerability to our society that has been overlooked. It investigates this by examining four modern environments within the U.S.: two primarily low-income, immigrant communities in or near the Tempe area, and two middle-income class communities in downtown Mesa and on the South Texas border, respectively. It uses a multi-methods approach to understand how sense of community could manifest itself at varying levels depending on the type of community establishedamong different types of communities. The locations studied were fundamentally different in nature, and, therefore, could not be subject to comparative analysis. However, the study gives evidence of weaker sense of community and general relational connection among moderate to upper-class environments. Literature review utilized in the two low-income immigrant neighborhoods revealed that residents experience high sense of community, as well as high satisfaction with their environments. Qualitative analyses consisting of interviews approached through an assets-based community development perspective, as well as forms of coding employed in the South Texas neighborhood, revealed that the two middle to upper-income communities experience low to moderate sense of community, and corresponding satisfaction with their environments. This paper suggests that trends of decreasing sense of community, such as these, create unnoticed vulnerabilities for our modern environments that present disadvantages for sustainable development. It also suggests that we can learn from the former two communities, and proposes that strong communities are critical for our society on many levels, as well as advantageous for the future of sustainable development.
ContributorsMeador, Keily (Author) / Cloutier, Scott (Thesis director) / Eakin, Hallie (Committee member) / School of Sustainability (Contributor, Contributor) / School of Earth and Space Exploration (Contributor) / Barrett, The Honors College (Contributor)
Created2019-12
Description
Consumption of clean, pathogen-free water is vital in maintaining health. The water infrastructure in Puerto Penasco, Sonora is not sufficient in providing clean water for its residents. Water in this region is being overdrafted, meaning it is distributed from deep wells faster than it can be regenerated, which prevents more wells from being constructed. There is a high need for a cost-efficient solution to the clean water shortage in this impoverished town. The purpose of this study was to determine: (1) how clean drinking water affects health, (2) how contaminated water and water substitutes, such as soda and juices, negatively impact health, and (3) the impact on water consumption by local residents after providing them with a portable filtration system to create clean drinking water in their own homes. Water filters were distributed in two trials to a convenience sample of 45 participants, 27 of whom were successfully contacted for a post-implementation survey. Out of the 27 participants who took the survey, 27% reported that they drank more water after receiving the filter than before, 40% reported drinking less soda after receiving the filter, 63% reported using their filter on a daily basis, 63% believed that drinking clean water is important for their health, and 74% thought that it was difficult for them to obtain clean drinking water before receiving the filter. Providing residents with a filtration system was effective in increasing water consumption and saving residents money on water but did not provide conclusive data, negating the use of soda as a water substitute. This was an effective small-scale solution to a much larger problem that may be beneficial in other similarly impoverished communities.
ContributorsPizarek, Dana Nicole (Author) / Kennedy, Denise (Thesis director) / Eakin, Hallie (Committee member) / College of Health Solutions (Contributor) / Barrett, The Honors College (Contributor)
Created2019-12
Description
This paper explores Grace Logan and Emma Zuber’s understanding of how edible green spaces are mediums for emotional and social well-being. Our research aims to answer these questions: How are different populations benefitting in terms of their emotional and social well-being in similar and different ways from edible green spaces in Phoenix, Arizona? How does accessibility to garden spaces as well as time, in both frequency and duration, impact personal and communal connection? To answer these questions, we surveyed volunteers from four different garden populations - Sage Garden at Arizona State University (ASU), Desert Marigold School (DMS), TigerMountain Foundation (TMF), and Growhouse Urban Agriculture Center (GUAC). Before the volunteer surveys, we interviewed a garden leader or founder to gain a better understanding of their intentions for the space and their perspective on how the garden impacts emotional and social well-being benefits in their community. The results of the survey included some variance in subpopulation answers but, overall, volunteers answered similarly. This led us to determine that gardens do bring emotional and social benefits to people, but the degree of these benefits prove difficult to truly determine due to the complexity of personal needs across different subpopulations. As well, our research on time and access proved too limited in this study to make a definitive conclusion on how it impacts personal and communal connections, but the research does suggest that time could be a determining factor for subpopulations. This study also made recommendations based on our findings, so that policies could be enacted to ensure people can access green spaces to improve their overall well-being.
ContributorsLogan, Grace Ann (Co-author) / Zuber, Emma (Co-author) / Eakin, Hallie (Thesis director) / Bernier, Andrew (Committee member) / Scott, Cloutier (Committee member) / School of Sustainability (Contributor) / School of Public Affairs (Contributor) / Barrett, The Honors College (Contributor)
Created2020-05
Description
This course will cover the history, ethics and impact of the fair trade movement for a variety of stakeholders in the Global South and Global North. We will be participating in various activities that will acquaint us with different topics, including globalization, the gender wage gap, environmental degradation and supply chain management. Guest speakers from the fair trade community will contribute their perspectives regarding the movement. Students will gain an understanding of the tradeoffs of the fair trade movement for the different actors throughout the length of the supply chain. Students will describe the purpose of the fair trade movement and who it seeks to serve. Students will explain what the Fair Trade certification entails for the actors who engage in the system. Students will debate the tradeoffs of the fair trade movement, incorporating the perspectives of multiple stakeholders from both the Global South and Global North. Finally, students will evaluate Fair Trade as a tool for sustainability both socially and economically.
ContributorsSimari, Daniella Jayne (Author) / Eakin, Hallie (Thesis director) / Walters, Molina (Committee member) / School of Life Sciences (Contributor) / Division of Teacher Preparation (Contributor) / Barrett, The Honors College (Contributor)
Created2019-05
Description
Due to recent changes in climate, hurricanes have become more violent and destructive in the tropical region of the Caribbean. Extreme weather events have destroyed freshwater sources in many islands, affecting the overall food and water security of the region. More resilient forms of collecting freshwater for citizens and agriculture must be proposed in order to mitigate future weather impacts and increase future water security. Rainwater harvesting is an ideal and sustainable source of freshwater that can be adapted into existing households to help ease reliance on city water sources. Rainwater harvesting systems are effective sources of supplemental freshwater because they are easy to incorporate and inexpensive compared to other sources of freshwater. Dennis McClung, founder and owner of global charity, Garden Pool, has created the Climate Smart Farm, an agriculture system that incorporates rainwater harvesting to help create a more climate resilient farm. The Climate Smart Farm is adaptable and can be customized to incorporate solar energy, vertical gardening, aquaponics, hydroponics, plant propagation techniques, and more to grow crops in a more sustainable fashion. The system has recently been installed in the island of Barbuda, which was badly affected by the hurricanes in the summer of 2017. The system has been positively accepted by the country due to its ability to make agriculture simple and sustainable. It can be built with local materials, making the building process economy friendly. And with the addition of plant propagation techniques, the Climate Smart Farm can extend growing seasons and increase overall yields.
ContributorsLeung, Karyn Mae (Author) / Eakin, Hallie (Thesis director) / McClung, Dennis (Committee member) / School of Earth and Space Exploration (Contributor) / Barrett, The Honors College (Contributor)
Created2018-05
Description
The Prosopis genus of trees, also known as mesquites, are uniquely equipped to allow for an agroforestry regime in which crops can be grown beneath the canopy of the tree. Mesquites have the ability to redistribute water moisture in such a way that allows plants under the canopy to use water that has been brought up by the roots of mesquite trees. This means that there is a potential for food crops to be grown under the trees without using additional irrigation measures. This could be used where access to water is limited or for a sustainability-minded farmer who is trying to reduce water inputs in an arid environment. Mesquite trees produce a variety of products, including lumber and bean pods that can be ground down into an edible flour. Both products demand a high price in the marketplace and are produced in addition to the crops that can potentially be grown beneath the mesquite tree. In order to determine whether or not it is possible to grow crops under mesquite trees, I reviewed a wide range of literature regarding hydraulic redistribution, mesquite trees in general, and what plants might be best suited for growing beneath a mesquite. The list of plants was narrowed down to four crops that seemed most likely to survive in shaded, low water conditions in a hot environment. There has not been any research done on crops growing beneath mesquite trees, so the next step for research would be to experiment with each of the crops to determine how well each species can adapt to the specified conditions.
ContributorsMesser, Luke Winston (Author) / Eakin, Hallie (Thesis director) / Hall, Sharon (Committee member) / School of Sustainability (Contributor) / Barrett, The Honors College (Contributor)
Created2016-12
Description
Food waste is a growing global issue that exemplifies an unsustainable system of resource loss in landfills which eventually breaks down into the greenhouse gas of methane. Approaching landfill diversion of food waste on the local level requires innovative solutions based on public and private partnerships. This thesis project explored how the City of Tempe's Grease Cooperative could provide a model of restaurant partnership and third-party service to tackle not just restaurant grease waste in water, but food waste in the solid waste stream. This used other city-run food waste collection systems as examples, and it relied on the input and support of multiple municipal stakeholders in its design. Using an existing food waste collection service in the Phoenix metropolitan area, the research was collected during a month-long observational pilot study of four Tempe restaurants, where data ranged from trash bin differences to kitchen staff sizes. The results of the pilot were compiled for the benefit of the collection service, the City of Tempe, and the involved restaurants to demonstrate potential obstacles to a currently small, but scalable, collection service, and potential solutions that will make the service more efficient and attractive to new customers. Future research goals include expanding the pilot's reach and information through stronger partnerships and collaborative data collection in Tempe, providing a guide to a food waste collection cooperative within Tempe, and promoting large scale diversion of food waste from restaurants both through prevention and nutrient recycling. The final paper was submitted for publication to the Solutions journal, as an example of "On the Ground" implementation of solutions.
ContributorsAndersen, Annika Emmaline (Author) / Cloutier, Scott (Thesis director) / Eakin, Hallie (Committee member) / School of Historical, Philosophical and Religious Studies (Contributor) / School of Sustainability (Contributor) / Barrett, The Honors College (Contributor)
Created2017-05
Description
The ecological benefits provided by trees include improving air quality (Nowak, et. al., 2006), mitigating climate change by sequestering carbon (Nowak, 1993), providing animal habitats (Livingston, et. al., 2003), and reducing heat (Edmonson, 2016), among others. Trees also provide numerous social benefits, impacting urban sustainability in particular by improving human health (Salmond, 2016), aesthetically and economically improving neighborhoods (Torres, 2012), and contributing to thriving communities by creating gathering spaces and even reducing crime (Abraham, et. al., 2010). Because of the tremendous potential of trees to provide social and ecological services, particularly in urban areas, tree planting has become an important facet of many sustainability initiatives. This thesis assesses one such initiative aimed at planting trees for the diverse benefits they provide. Valley Permaculture Alliance (VPA), a nonprofit based in Phoenix, Arizona, is known for its Shade Tree Program. The author conducted an internal, quantitative assessment of the program between August and December of 2015. The assessment included evaluation of several indicators of ecological and community health related to the presence of shade trees, culminating in a report released in 2016. This paper evaluates the use of sustainability indicators in the VPA assessment as well as their value in different types of organizations. It culminates with an assessment of VPA's strengths, challenges faced by the organization, and suggestions for its future development.
ContributorsJones, Michaela Martine (Author) / Larson, Kelli (Thesis director) / Eakin, Hallie (Committee member) / School of Sustainability (Contributor) / American Indian Studies Program (Contributor) / Barrett, The Honors College (Contributor)
Created2016-12
Description
This paper about the Garden Grub concerns the growing Agritech industry along with exposing middle school students to STEM education. Currently over half of America's students are not prepared to be successful in our technology driven world. These students did not have the opportunity to be exposed to many Science, Technology, Engineering, and Math related careers or majors before entering the working world and/or college. These students are unaware of the real-life applications these topics can have and will never have the chance to pursue these fields. Using the Garden Grub, students will be introduced to the world of Agritech and how traditional agriculture is changing in include more technology. The Garden Grub is designed to not only introduce students to STEM in general, but specifically the Agritech Industry. With the Garden Grub kit and instructions students will be able to construct a small device that will monitor the external temperature and the soil moisture of a plant they are growing. For future implementations of the Garden Grub, we will develop a structured lesson plan to teach the users more about the device they are building. This is so in the future users could continue their education in Agritech and STEM because they have more knowledge on the subjects From standalone testing the Garden Grub, the device was able to successfully monitor the lettuce to ensure that it grew successfully. The Garden Grub instructions and kit were tested in a fourth-grade classroom, where college volunteers worked with the students to begin to create their own device. While there was not enough time to successfully complete the product the fourth graders were more interested in STEM than when we first started. Even though they struggled in the beginning, students quickly learned basic concepts , such as +/- circuit power, transfer of data, and sensor connections. More recently we were able to go into a middle school and teach in a classroom with the students who were part of a coding elective course. Since our last outing we were able to update the user manual and prepare more ahead of time. This gave us more time to explain the concepts to the students, along with being able to successful build all of the devices. They began to think of ways that this device could be applicable to their lives along with how the Garden Grub could be improved in the future.
ContributorsWynia, Rachel Marie (Author) / Lin, Elva (Thesis director) / Eakin, Hallie (Committee member) / WPC Graduate Programs (Contributor) / Department of Information Systems (Contributor) / Barrett, The Honors College (Contributor)
Created2018-05