Rapid urbanization, which is one of the major problems of contemporary era, created cities as the major destroying centers of nature and ecology by human beings. In this respect, urban agriculture takes place in urban areas as a new way to meet nature and urban for improving the quality of life in the last decades. Despite the belief that agricultural activities always take place in rural areas, agriculture in urban areas would provide citizens many opportunities in terms of social, economic and environmental aspects. This study aims to identify the notions of urban agriculture, and to investigate its economic, social and environmental impacts by exemplifying the different practices around world. It focuses on Black Sea Towns of Turkey in the case of Rize where agriculture is occupied in important parts of urban and rural areas. Unique features of agriculture in urban areas as they differ from other implementations in the world are examined. In this thesis, UA is considered as socio-economic and townscape value in the city. In the case of Rize, urban agriculture appears as an indispensable part of social life that bears the imprint of rural background of the cities.

European immigrants introduced orchards to the U.S. in the early 1600s. As they began to establish settlements and migrate west, they brought orchard cultivation with them, creating an extensive network of orchards spread across the U.S. However, over time many of these orchards were lost due to urban development, which is what makes Seattle’s historic orchards significant. Early Seattle settlers planted orchards in the 1800s and early 1900s, and their remnants still exist today, despite urban development. Over the years, many of the orchards have been incorporated onto City Department-owned land, but they have not been maintained to the extent that they could or should be. In the past few years, there has been an interest in rejuvenating Seattle’s historic orchards and planting new ones in order to contribute to the growing local urban agriculture movement. This piece of work is framed around a discussion of the significance of Seattle’s orchards, their significance to the surrounding communities, and how the work accomplished at these sites can become sustainable.

ABSTRACT A LESSON FROM THE URBAN GARDEN Jamie Hamblin Purpose: In 2008 the world’s urban population surpassed the rural population; furthermore, the United Nations estimates by 2025 the world’s urban population will increase by about one billion people. Given recent population shifts and the interconnectedness between food and health, this research examines the role of agriculture in addressing urban food insecurity by reviewing urban interventions with a goal of food production. Methods: Using the Sustainable Livelihoods Framework, an adjusted theoretical framework was developed which accounted for negative implications of these interventions as well as sustainability. Ultimately, the framework generated a food security score respective of each project. Using this score, statistical tests were conducted to confirm characteristics of more effective projects. Results: Statistical analysis indicates food security score has a strong correlation with physical, future and social capital (0.72, 0.73 and 0.80 respectively). Food security score has a moderate correlation with duration of project and a strong correlation with number of project components (0.60 and 0.83). Furthermore, mean food security score of projects which used participatory methods was statistically different than mean food security score of projects which did not use participatory methods (p=0.01). Conclusions: Participatory methods prove an important aspect of an urban agricultural intervention. Statistical results affirm urban food insecurity should be addressed through an integrated strategy which considers long-term viability of the project. Food security score, developed for this research, can help identify valuable components of interventions; however, this system is fairly subjective with some limitations.

Den snabba utvecklingen och urbaniseringen i stora delar av Kina har ett flertal konsekvenser för miljön. Yangtzedeltats ytvatten är till stor del eutrofierade, delvis p.g.a. diffusa förluster från jordbruket. I denna studie har kväve- och, till viss del, fosforflöden och förluster från två odlingsrutor i ett intensivt odlat grönsaksfält i ett tätortsnära område i Nanjing, med hög tillförsel av organiskt gödsel, undersökts med hjälp av den fältskaliga simuleringsmodellen GLEAMS. GLEAMS parametriserades och kalibrerades mot mätvärden av jordens vatten- och kväveinnehåll. Ett scenario med minskad kvävetillförsel simulerades sedan. Simuleringen av vattenhalten i de olika horisonterna var inte utmärkt. Den simulerade mängden mineralkväve i marken var avsevärt lägre än den uppmätta. Detta kan bero på en felaktig simulering av mineraliseringen av organiskt kväve eller en för långsam nedbrytning av gödsel. Det är också möjligt att felen i vattensimuleringarna bidrog till underskattningen av mängden mineralkväve i marken. Simuleringarna på de båda odlingsrutorna gav liknande resultat, förutom att ruta B hade 20% större förluster av N via simulerad erosion och läckage. För fortsatt simulering av alternativa odlingsmetoder bör modellens parametrisering förbättras, särskilt vad avser parametrar kopplade till gödselns mineralisering. / Many parts of China are going through a rapid development and urbanization resulting in various environmental impairities. The Yangtze Delta Region surface water bodies are affected by eutrophication, partly caused by diffuse losses from agriculture. In this study, nitrogen, and to some extent also phosphorus, flows and losses from two plots in an intensively cultivated vegetable field in a peri-urban area of Nanjing, with a high input of organic fertilizer, were analysed by the use of the field-scale simulation model GLEAMS. The GLEAMS model was parameterized and calibrated against measurements of soil water and nitrogen content in two plots. A scenario with a reduced input of nitrogen was then simulated. The resemblance between simulated and measured water content in the different soil layers was quite poor. The simulated inorganic nitrogen content in the soil was significantly lower than the measured during great parts of the simulation period. This could be due to an inappropriate simulation of the mineralization of organic N under these conditions, or an underestimated decomposition rate of manure. It is also possible that the poor water simulations contributed to the underestimated inorganic N content in the soil. There were similar results for the two plots, except for an unexplained 20% increase in leaching and erosion losses of N in Plot B. For simulation of scenarios to find best management practices, the model parameterization should be further refined.

Urban agriculture (UA) is an increasingly popular land use concept emerging in industrialized nations of the world. Although the phenomenon of UA is a common and well-documented form of food production in developing nations of the global south as well as in North America historically, only a small but growing body of literature exists that discusses UA implementation practices in a North American context today. The purpose of this research was to determine what factors contribute to successful planning and implementation of UA in North American communities. The following questions were addressed: What factors contribute to successful planning and implementation of UA? What stakeholders were most and/or least enabling in achieving success? How do UA projects demonstrate success, and how can these factors be used as a guide for future implementations of agriculture in urban environments? Additionally, how could GIS be employed to aid in spatial decision support for UA planning? Two North American cases (one in Ontario, Canada, and one in Colorado, USA) were analyzed through open-ended, semi-structured interviews, observations, and other data sources. This study involved the researcher’s direct participation with a newly-formed community garden group and the Community Garden Council of Waterloo Region. Findings of this study demonstrate that successful UA planning and implementation is not only the result of several factors and multiple stakeholder involvement, but also that UA—to be successful—should comprise a socially relevant, economically resilient, and environmentally sound system of production.

"Food desert" commonly describes food insecure areas with few fresh food outlets. Though used in a number of sources, the definition of "food desert" remains largely undeveloped and research is often deficit oriented, failing to account for community assets that may exist within food deserts but are underutilized or under-supported. Using an assets-based, ethnographic approach, this study combines GIS and survey methodology with participant observation and qualitative interviews to assess the potential positive effect of urban agriculture on food accessibility in Sulphur Springs, a USDA identified urban food desert in Tampa, Florida. Ethnographic data suggest that within this neighborhood, residents are largely dissatisfied with the quality of goods and services provided by local food retailers and, in response, seek alternatives to local retail food options. GIS and food store survey results from this study suggest that urban agriculture has the potential to increase fresh food accessibility and availability. Qualitative interview data suggest that the most appropriate way to improve food accessibility in this particular community is through Community Supported Agriculture that fosters social connections, while increasing access to healthful, quality foods, and circulating money within the community.

Austin has residents that have health and nutrition issues that are linked to a lack of access to healthy foods. Some urban agriculture experts believe that one way to help mitigate the issue of access is to increase the amount of food that is produced locally. This report will look at planning issues involving food production, examine the amount of food that is being produce at farms located in Austin, make an inventory of available agricultural lands that have the potential for food growth, and make a basic calculation of how many people food from those lands could feed. / text

Hong Kong’s agricultural sector has been declining since the 1980s with the reduction in area of arable lands and number of farmers. The trend of over-reliance on imported produce is likely to continue with population growth in the upcoming decades. The climbing imported to locally grown food ratio might aggravate climate change. Vertical farming, which is promoted in recent years as a more sustainable mode of farming than conventional cultivation, is investigated mainly in terms of life cycle Greenhouse gases (GHG) emissions of its produce. Assessment was carried out following the guidelines in two relevant sets of Publicly Available Specification (PAS). Lettuce variety “Heading European”, which is among the most popular leafy vegetables in Hong Kong, is chosen because of its significant share imported from Guangdong Province. Three sets of surveys have been conducted to find out if locally grown produce generates less GHG than imported one. The sustainability of vertical farming is also evaluated. It performs in a cradle-to-gate basis in which life cycle of the lettuce is assessed from the stage of farmland preparation to delivery of them to Vegetable Marketing Organization (VMO). The results of life cycle GHG evaluation show that produce of local farm generates fewer amounts of GHGs than the imported one. For lettuces imported from the conventional farm in Songyuancun, Guangdong Province, it generates approximately 1.57E+00kg of carbon dioxide equivalent (CO2-e). It is about 132% higher than the one grown in local conventional farm at Tai Kong Po Tsuen, which is around 6.77E-01kg of CO2-e It seems the idea of replacing local conventional farming with vertical farming is not sustainable at this stage. Evaluation reveals the latter generates more amount of GHG which is 8.72E+00kg CO2-e/cup of Oak Leaf Lettuce. It is about 13 times higher than the locally grown in the conventional farm. The energy-hungry lighting system and the lack of renewable energy are among the major reasons for high GHG emission in vertical farming. Although the GHG emissions are higher than conventional farming in the designated lifecycle, vertical farming does contribute to sustainable development in terms of food stability and job opportunity. Uncertainties of this study could well be improved by developing a specific set of GHG emission factors for components in preparation stage and on-farm stage. More information could be collected for use and end-of-life stages, which is omitted in the study. Further comparison of wider variety of vegetables cultivated in different forms of farming should also be carried out. Carbon labelling scheme for agricultural products would brush up environmental awareness of both producers and consumers. With the trend of green consumption, it would provide an incentive for producers to adopt this scheme. It is especially important for local vertical farms to impose this scheme to increase its market competiveness. Moreover, government should play a significant role in promoting a more sustainable form of agriculture. Supportive policy like increasing investment in R&D for energy efficient technologies or even erecting a modern building for vertical farms would help achieve this goal. The lowered life cycle GHG emission would enhance sustainability of vertical farming. / published_or_final_version / Environmental Management / Master / Master of Science in Environmental Management

In order to build community and provide additional amenities at their properties, several affordable housing developers in Austin, Texas have begun integrating on-site food production into their developments. This project explored the experiences of staff and tenants at two agencies that have connected food production and housing. Based on analysis of these narrative data, I identified current opportunities to further integrate and expand on-site food production into affordable housing. I proposed solutions to overcome challenges and recommended policies and incentives that could support the integration. / text

Urban agriculture and the local food movement have taken main stage both in academic discourse and public and political media. Socio-environmental downfalls of our current industrial food systems have been highlighted, compelling the public and political spheres to engage in activities that support the integration of local, urban food-growing systems. This thesis aims to contribute to that integration by examining possibilities for urban agriculture within the city limits of Atlanta. Through geospatial analysis methods and consultation of city and county property records, possible future sites were ascertained using socioeconomic and ecological factors, with 21 key neighborhoods found to have the greatest potential and need to transform existing land use for agricultural purposes. This research contributes to the larger goal of systemic integration of urban and local food systems into our current economic, political and social landscape, and the study is framed using social theoretical insights from urban geography. While further examination of these urban agricultural food systems is vital, this thesis contributes to broader discussions about urban environmental sustainability and supports the roots of the local food movement by identifying possible sites for food cultivation and food markets.