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The widespread environmental degradation characterizing the Anthropocene is a call to address a deteriorating human-nature relationship. For much of history, humans have been deeply connected with and in respect of nature both physically and psychologically, and this bond can be renewed. Doing so is especially important for future generations, as modern youth have less opportunities to experience the natural world and more opportunities to experience the virtual world. A lack of nature connectedness in our youth has clear implications for sustainability and underscores the need for interventions aimed at reconnecting youth with nature. Primary and secondary education is a particularly valuable leverage point for such interventions, and nature-based school landscapes may be a valuable tool in strengthening the human-nature relationship and reconnecting youth with nature. While studies have indirectly linked garden-based learning and connection with nature in youth, research has not yet directly explored the relationship between the two.
My research explores 12th grade students attending Desert Marigold School in South Phoenix. Desert Marigold practices Waldorf educational philosophy with the school’s garden as a primary teaching tool and recreational space. I used arts-based methods to give students an opportunity to visually communicate their perspectives of the school’s landscape through photography and artistic renderings. Students then verbally described and discussed their media in a series of group interviews. Data were then coded and analyzed for themes of connection with nature expressed in the literature. The results illustrate that students connect with nature in a variety ways through the school’s landscape, demonstrating potential for enhanced sustainability outcomes in education.
The Kilombero Valley lies at the intersection of a network of protected areas that cross Tanzania. The wetlands and woodlands of the Valley, as well as the forest of surrounding mountains are abundant in biodiversity and are considered to be critical areas for conservation. This area, however, is also the home to more than a half million people, primarily poor smallholder farmers. In an effort to support the livelihoods and food security of these farmers and the larger Tanzanian population, the country has recently targeted a series of programs to increase agricultural production in the Kilombero Valley and elsewhere in the country. Bridging concepts and methods from land change science, political ecology, and sustainable livelihoods, I present an integrated assessment of the linkages between development and conservation efforts in the Kilombero Valley and the implications for food security.
This dissertation uses three empirical studies to understand the process of development in the Kilombero Valley and to link the priorities and perceptions of conservation and development efforts to the material outcomes in food security and land change. The first paper of this dissertation examines the changes in land use in the Kilombero Valley between 1997 and 2014 following the privatization of agriculture and the expansion of Tanzania’s Kilimo Kwanza program. Remote sensing analysis reveals a two-fold increase in agricultural area during this short time, largely at the expense of forest. Protected areas in some parts of the Valley appear to be deterring deforestation, but rapid agricultural growth, particularly surrounding a commercial rice plantation, has led to loss of extant forest and sustained habitat fragmentation. The second paper focuses examines livelihood strategies in the Valley and claims regarding the role of agrobiodiversity in food security.
The results of household survey reveal no difference or lower food security among households that diversify their agricultural activities. Some evidence, however, emerges regarding the importance of home gardens and crop diversification for dietary diversity. The third paper considers the competing discourses surrounding conservation and development in the Kilombero Valley. Employing q-method, this paper discerns four key viewpoints among various stakeholders in the Valley. While there are some apparently intractable distinctions between among these discourses, consensus regarding the importance of wildlife corridors and the presence of boundary-crossing individuals provide the promise of collaboration and compromise.
Just prior to the green revolution, Indian wheat scientists adopted Borlaug’s new plant breeding philosophy—that varieties should have as wide an adaptation as possible. But Borlaug and Indian wheat scientists also argued that wide adaptation could be achieved by selecting only plants that did well in high fertility and irrigated environments. Scientists claimed, in many cases erroneously, that widely adapted varieties still produced high yields in marginal, or resource poor, areas. Many people have criticized the green revolution for its unequal spread of benefits, but none of these critiques address wide adaptation—the core tenant held by Indian wheat scientists to justify their focus on highly productive land while ignoring marginal and rainfed agriculture. My dissertation describes Borlaug and the RF's research program in wide adaptation, Borlaug's involvement in the Indian wheat program, and internal debates about wide adaptation and selection under favorable environments among Indian scientists. It argues that scientists leveraged the concept of wide adaptation to justify a particular regime of research focused on high production agriculture, and that the footprints of this regime are still present in Indian agriculture.
