Student capstone and applied projects from ASU's School of Sustainability.

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Cities are restoring rivers to recapture the social, ecological, and economic benefits of rehabilitated rivers. But, traditional urban planning and flood management tools may not address the complex relationships between humans, the built environment, and natural elements in the social-ecological systems of which rivers are an important part. They also

Cities are restoring rivers to recapture the social, ecological, and economic benefits of rehabilitated rivers. But, traditional urban planning and flood management tools may not address the complex relationships between humans, the built environment, and natural elements in the social-ecological systems of which rivers are an important part. They also may not acknowledge and address the factors that led to channelization. The field of regenerative design and development—an eco-centric approach that aims to dismantle the underlying processes and viewpoints behind the most pressing environmental problems—offers tools to plan more effective and inclusive river restoration projects. To explore these issues and the potential of regenerative design and development, we reviewed 15 urban river restoration plans, followed by a comparative case study of the Los Angeles River, CA and the Kinnickinnic River, WI. We conducted a content analysis of plans and popular press articles, and interviewed key actors. Results indicate many participants exhibit regenerative thinking and participate in regenerative processes, but they are unable to fully implement regenerative projects due to several constraints at institutional, social, economic, physical levels. Study recommendations emphasize rooting restoration in the unique aspects of place, reframing projects as part of nested social-ecological systems, working from potential, addressing broader socioeconomic challenges, and leveraging strategic nodes. Changes to planning education and practice are needed to empower planners to think and act regeneratively.

ContributorsPearthree, Genevieve (Author) / Cloutier, Scott (Contributor) / Ehlenz, Meagan M. (Contributor) / Pfeiffer, Deirdre (Contributor)
Created2018-06-08
Description
In Senegal, West Africa, soils are a vital resource for livelihoods and food security in smallholder farming communities. Low nitrogen (N) soils pose obvious challenges for crop production but may also, counterintuitively, promote the abundance of agricultural pests like the Senegalese locust, Oedaleus senegalensis. In this study I investigated how

In Senegal, West Africa, soils are a vital resource for livelihoods and food security in smallholder farming communities. Low nitrogen (N) soils pose obvious challenges for crop production but may also, counterintuitively, promote the abundance of agricultural pests like the Senegalese locust, Oedaleus senegalensis. In this study I investigated how the abundance of locusts and grasshoppers are impacted by soil fertility through plant nutrients and how these variables change across land use types. We worked in two rural farming villages in the Kaffrine region of Senegal. Overall, there was little variation in soil properties and an agricultural landscape low in soil organic matter (SOM) and inorganic soil nitrogen. I corroborated that SOM is a significant driver of soil inorganic N, which had a positive relationship to plant N content. Of the management practices we surveyed, fallowing fields was important for soil nutrient restoration and years spent fallow was significantly correlated to inorganic soil N and SOM. O. senegalensis was least abundant in groundnut areas where plant N was highest. Additionally, I found a significant negative correlation between O. senegalensis abundance and plant N, suggesting that plant nutrients are an important driver of their populations. Grasshoppers, excluding O. senegalensis, were more numerous in grazing areas and fallow areas, perhaps due to a higher diversity of ecological niches and host plants. These results connect land use, soil, and vegetation to herbivores and suggest that improving soil fertility could be used as an alternative to pesticides to keep locusts at bay and improve crop yields.
ContributorsWord, Mira (Author) / Hall, Sharon (Contributor) / Robinson, Brian (Contributor) / Manneh, Balanding (Contributor) / Beye, Alioune (Contributor) / Cease, Arianne (Contributor)
Created2018-04-10
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Description

How we divide space in ever growing urban areas in an equitable, efficient and aesthetic fashion is one of the big questions of our time. In Lüneburg, Germany, citizens think more alternative forms of housing will be an important element of a sustainable future (Lüneburg 2030, 2018). Tiny Houses, dwellings

How we divide space in ever growing urban areas in an equitable, efficient and aesthetic fashion is one of the big questions of our time. In Lüneburg, Germany, citizens think more alternative forms of housing will be an important element of a sustainable future (Lüneburg 2030, 2018). Tiny Houses, dwellings that downsize an entire household to its minimum, are currently gaining attention in the country, but legal barriers make their implementation difficult. It has to be decided if legislations should be changed to allow these structures in the housing mix of Lüneburg. It is a difficult task to sift through the glamorization of Tiny Houses past the ideological utopia to see their value for the individual (Ansons, 2015). Therefore, it is of interest to fully understand what Tiny Houses offer for affordable housing stakeholders. Twenty-five evaluations of criticism and praise of the Tiny House Movement are collected by applying Q method, a tool to gather subjective viewpoints (Barry & Proops, 1999). Results indicate, four salient perceptions on that matter. Each viewpoint identifies different opportunities and risks when evaluating Tiny Houses for Lüneburg. This research demonstrates the potential of Tiny Houses to trigger participation by bringing people with diverse backgrounds together.

ContributorsFreude, Tara (Author) / Pfeiffer, Deirdre (Contributor) / von Wehrden, Henrik (Contributor) / Lang, Daniel (Contributor)
Created2018-07-09