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Few topics have been addressed through as large a range of perspectives and interests as urban agriculture (UA), yet the literature has been loosely characterized by a divergence and disconnect between research conducted in the global north (GN), and that in the global south (GS). In cities of the global south, UA is widely analyzed through a productivist lens, focusing on food production and individual or household-level contributions of urban farming to food security, household income, and livelihoods. Meanwhile, in cities of the global north, engagement with UA also speaks to food production and food security but is just as often focused on environmental and social movements, civic engagement and justice, and more recently urban sustainability and resiliency. We argue that productivist and post-productivist dichotomies are somewhat displaced as differences between the GN/GS are becoming less pronounced. Furthermore, such a dichotomy reinforces assumptions about the nature of urbanization itself, eliding both the commonalities among urban spaces and specificities that come from each place. By examining how UA is approached and written about in different contexts, we hope to highlight the gaps, but also to illustrate convergent themes, particularly those that increasingly characterize contemporary UA research. After elaborating on these tensions, we will build on the increasing relevance of the convergences by suggesting some potentially fruitful future directions for UA research. We conclude with ideas about how novel theoretical concepts might be used to identify overlapping themes in useful and insightful ways, and to increase the significance and reach of UA research. [ABSTRACT FROM AUTHOR]

Much of the developing world, including Kenya, is rapidly urbanizing. Rising food and fuel prices in recent years have put the food security of the urban poor in a precarious position. In cities worldwide, urban agriculture helps some poor people gain access to food, but urban agriculture is less common in densely populated slums that lack space. In the Kibera slums of Nairobi, Kenya, households have recently begun a new form of urban agriculture called sack gardening in which vegetables such as kale and Swiss chard are planted into large sacks filled with topsoil. This paper examines relationships among sack gardening, social capital, and food security in Kibera. We used a mixed methods approach, combining qualitative interviews with a household survey, as well as focus group discussions with both farmers and non-farmers. We present evidence that sack gardening increases social capital, especially for those households that undertake sack gardening in groups. We also find that sack gardening in the Kibera slums has a positive impact on household food security by improving household dietary diversity and by reducing the need to resort to painful coping mechanisms that are used during food shortages. [ABSTRACT FROM AUTHOR]

Cities around the world are undergoing rapid urbanization, resulting in the growth of informal settlements or slums. These informal settlements lack basic services, including sanitation, and are associated with joblessness, low-income levels, and insecurity. Families living in such settlements may turn to a variety of strategies to improve their livelihoods and household food security, including urban agriculture. However, given the lack of formal sanitation services in most of these informal settlements, residents are frequently exposed to a number of environmental risks, including biological and chemical contaminants. In the Kibera slums of Nairobi, Kenya, households practice a form of urban agriculture called sack gardening, or vertical gardening, where plants such as kale and Swiss chard are planted into large sacks filled with soil. Given the nature of farming in slum environments, farmers and consumers of this produce in Kibera are potentially exposed to a variety of environmental contaminants due to the lack of formal sanitation systems. Our research demonstrates that perceived and actual environmental risks, in terms of contamination of food crops from sack gardening, are not the same. Farmers perceived exposure to biological contaminants to be the greatest risk to their food crops, but we found that heavy metal contamination was also significant risk. By demonstrating this disconnect between risk perception and actual risk, we wish to inform debates about how to appropriately promote urban agriculture in informal settlements, and more generally about the trade-offs created by farming in urban spaces. [ABSTRACT FROM AUTHOR]

Ethnopedology is the study of local knowledge of soil and land management in an ecological perspective. It is an emerging hybrid discipline that is a component of ethnoecology and stands to offer much for land-based studies. This paper reviews the field of ethnopedology in Latin America and compares some of the many case studies from that region. Various literature sources are considered, including the ethnographical, ethnohistorical, archaeological, geographical, agronomic, ethnoecological, and development studies. Our review invokes the theory of ethnoecology that focuses on the linkages between kosinos (beliefs and symbolic representations), corpus (environmental knowledge), and praxis (the set of practical operations through which the material appropriation of nature takes place) of local land-users. The main topics covered are the ethnohistorical and archaeological evidence of ethnopedology, local soil and land classification, local land management systems, local perceptions and beliefs of soil and land resources, and local soil fertility management. After analysing past and present research trends, recommendations are given on how ethnopedological studies can contribute to enhance sustainable land use and management in Latin America. [ABSTRACT FROM AUTHOR]

The division between rural and urban sectors of the landscape in many parts of the world is increasingly blurred. House-lot or homegardens offer a perspective on understanding rural-urban linkages since they are frequently a landscape feature in both settings and the exchanges of their products link the two. House-lot gardens are an under-researched component of the agricultural repertoires of smallholders in many parts of the world. Urban house-lot gardens in particular, have until recently not received much attention despite their critical importance to urban livelihoods. This paper presents findings from research on house-lot gardens in rural and urban zones of Santarém, Pará, Brazil, one of Amazonia's largest municipalities. The research demonstrates that garden products are important for household subsistence, but even more importantly product exchanges between rural and urban kin households help sustain critical social networks that subsidize urban life. Gardens are a link between urban and rural settings as products, germplasm, and household members move between the two. People are urban and rural at the same time which demonstrates that households can be multi-local. [ABSTRACT FROM AUTHOR]