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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
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Climate Action Leadership Program: Educating the Next Generation of Sustainability Leaders

Description

This paper is a reflection on the background, planning, development, and, implementation of the Climate Action Leadership Program (CALP). The 21st Century has been named the “century of the environment”. This program builds the next generation of leaders who are pursuing solutions to climate change. The program is result of…

This paper is a reflection on the background, planning, development, and, implementation of the Climate Action Leadership Program (CALP). The 21st Century has been named the “century of the environment”. This program builds the next generation of leaders who are pursuing solutions to climate change. The program is result of professional and scientific research in the areas of education and sustainability that uncovers the lingering sustainability education gap within the U.S. public school system. Research methodology applied combined qualitative and quantitative data analysis approach, including surveys, observations, and, academic research. The results show there are few programs in grades 8th to 12th, a crucial demographic, incorporating sustainability leadership education training or teaching the fundamental principles of sustainability in the public school curriculum.
We can no longer assume that social and environmental challenges such as pollution, dwindling resources and climate change can be set-aside for future generations. The creation of sustainability leadership education programs would properly prepare students for the greatly important, globally recognized social and environmental issues they actually face throughout their education, and professional practice. The compulsion to act is the outcome of the Climate Action Leadership Program. CALP is designed to create the next generation of sustainability leaders by transforming thoughts and ideas into effective climate action. Students learn how to build personal resilience, tell compelling stories and foster sustainable behavior in their own school communities.
ContributorsCharles, Victoria (Contributor)
Created2019-12-03