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

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Adding a Soil Fertility Dimension to Locust and Grasshopper Management, a Case Study in West Africa

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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

Sustainable Sound: Festival Guide

Description

Across the world, music festivals draw in millions of fans and generate billions in revenue (Fesicket Writers, 2018). While the festival scene is extremely popular, stakeholders are beginning to take notice of its negative impacts. When improperly managed, festivals damage natural systems, miss out on opportunities to support and engage…

Across the world, music festivals draw in millions of fans and generate billions in revenue (Fesicket Writers, 2018). While the festival scene is extremely popular, stakeholders are beginning to take notice of its negative impacts. When improperly managed, festivals damage natural systems, miss out on opportunities to support and engage with their fans, and exclude local businesses. The movement for sustainable music festivals has already begun, but it is still far from being the industry norm. Only a select few festivals have embraced sustainability as a core value while many others are still making no effort to mitigate their impacts. Even though many drivers are pushing for the transformation of this industry, the unaddressed barriers are holding organizers back. Sustainable Sound: Festival Guide has been created to educate organizers on how to plan and operate sustainable music festivals. It is based on tried and true methods to create holistically sustainable events. In this context, a holistically sustainable event is one that does not damage natural systems, protects and engages with its fans, and is economically positive. Various case studies from some of the world’s most sustainable festivals will also be highlighted throughout the guide. According to M3F, The Cosanti Foundation, and ASU’s CSSI, Sustainable Sound offers important and easy to understand information that festival organizations can use to improve the sustainability of their events.
ContributorsBurmeister, Matthew (Writer of accompanying material)
Created2019-12-06