The economic performance of urban gardening in three European cities – examples from Ljubljana, Milan and London

Urban gardening is not a new phenomenon but it has received considerably more practical and academic interest in recent years. Studies on economic aspects such as crop yields, inputs and outputs of production, productivity, gross margins and the contribution to home economics are rare, especially in Europe. While urban gardening plays an important role in the Global South, its role in Western Europe for food productivity and home eco- nomics is currently under-researched. The aim of this study is to analyse European urban gardeners\u2019 economic performance and self-sufficiency on a household level, as well as to reach a better understanding of their con- tribution to food self-provision and food security in the metropolitan areas. In a study carried out in 2014 with on-site personal and with online questionnaires participated 180 urban gardeners from three case study cities (Ljubljana, Milan, and London). Results from the economic analysis showed that although for most urban gar- deners, profit is not their main motivation, the economic calculation shows that productivity in small urban plots can be comparable to market garden production. Urban gardeners are saving money, especially when, compared to retail prices for regular produce or organic produce, their input is included in the gross margin calculation. We conclude that, in the case-study cities, the self-provisional potential of urban gardeners\u2019 households to ade- quately cover the annual vegetable need of five-a-day servings can be met under three conditions: (1) sufficient garden size; (2) increased area productivity, and (3) sufficient labour-hour inputs

Development of organic fertilizers from food market waste and urban gardening by composting in Ecuador

Currently, the management of urban waste streams in developing countries is not optimized yet, and in many cases these wastes are disposed untreated in open dumps. This fact causes serious environmental and health problems due to the presence of contaminants and pathogens. Frequently, the use of specific low-cost strategies reduces the total amount of wastes. These strategies are mainly associated to the identification, separate collection and composting of specific organic waste streams, such as vegetable and fruit refuses from food markets and urban gardening activities. Concretely, in the Chimborazo Region (Ecuador), more than 80% of municipal solid waste is dumped into environment due to the lack of an efficient waste management strategy. Therefore, the aim of this study was to develop a demonstration project at field scale in this region to evaluate the feasibility of implanting the composting technology not only for the management of the organic waste fluxes from food market and gardening activities to be scaled-up in other developing regions, but also to obtain an end-product with a commercial value as organic fertilizer. Three co-composting mixtures were prepared using market wastes mixed with pruning of trees and ornamental palms as bulking agents. Two piles were created using different proportions of market waste and prunings of trees and ornamental palms: pile 1 (50:33:17) with a C/N ratio 25; pile 2: (60:30:10) with C/N ratio 24 and pile 3 (75:0:25) with C/N ratio 33), prepared with market waste and prunings of ornamental palm. Throughout the process, the temperature of the mixtures was monitored and organic matter evolution was determined using thermogravimetric and chemical techniques. Additionally, physico-chemical, chemical and agronomic parameters were determined to evaluate compost quality. The results obtained indicated that all the piles showed a suitable development of the composting process, with a significant organic matter decomposition, reached in a shorter period of time in pile 3. At the end of the process, all the composts showed absence of phytotoxicity and suitable agronomic properties for their use as organic fertilizers. This reflects the viability of the proposed alternative to be scaled-up in developing areas, not only to manage and recycle urban waste fluxes, but also to obtain organic fertilizers, including added value in economic terms related to nutrient contents.Peer ReviewedPostprint (published version

The role of re-appropriation in open design : a case study on how openness in higher education for industrial design engineering can trigger global discussions on the theme of urban gardening

This case study explores the opportunities for students of Industrial Design Engineering to engage with direct and indirect stakeholders by making their design process and results into open-ended Designed Solutions. The reported case study involved 47 students during a two-weeks intensive course on the topic of urban gardening. Observations were collected during three distinctive phases: the co-design phase, the creation of an Open Design and the sharing of these design solutions on the online platform Instructables.com. The open sharing of local solutions triggered more global discussions, based on several types of feedbacks: from simple questions to reference to existing works and from suggestions to critiques. Also some examples of re-appropriation of the designed solutions were reported. These feedbacks show the possibilities for students to have a global vision on their local solutions, confronting them with a wider and more diverse audience. The case study shows on the other hand the difficulty in keeping students engaged in this global discussion, considering how after a few weeks the online discussions dropped to an almost complete silence. It is also impossible with such online platforms to follow the re-appropriation cycles, losing the possibility of exploring the new local context were the replication / modification of the designed product occurred. The course’s focus on Open Design is interesting both under the design and educational points of view. It implies a deep change in the teaching approach and learning attitude of students, allowing unknown peers to take part of the design process and fostering a global discussion starting from unique and local solutions

Annual report RUAF - Cities farming for the future, South and South East Asia Region, 2008

Urban agriculture / Training / Development projects / India / Sri Lanka

Design for the Right to the Smart City in More-than-Human Worlds

Environmental concerns have driven an interest in sustainable smart cities, through the monitoring and optimisation of networked infrastructure processes. At the same time, there are concerns about who these interventions and services are for, and who benefits. HCI researchers and designers interested in civic life have started to call for the democratisation of urban space through resistance and political action to challenge state and corporate claims. This paper aims to add to the growing body of critical and civic led smart city literature in HCI by leveraging concepts from the environmental humanities about more than human worlds, as a way to shift understandings within HCI of smart cities away from the exceptional and human centered, towards a more inclusive understanding that incorporates and designs for other others and other species. We illustrate through a case study that involved codesigning Internet of Things with urban agricultural communities, possibilities for creating more environmentally and socially just smart cities

Informal irrigation in urban West Africa: An overview

Irrigated farming / Urban agriculture / Suburban agriculture / Farm size / Farming systems / Health hazards / Water pollution / Farm income

Sustainable Community Gardens Require Social Engagement and Training: A Users\u2019 Needs Analysis in Europe

Urban gardens are spreading in many cities across Europe, with community gardening being a fundamental form of urban agriculture. While the literature reveals the essential role that community gardens can play in terms of learning and education, no studies have investigated the training needs for participants in community gardens to ensure their successful development. The goal of this article is to evaluate the training requirements of urban community gardens to ensure their successful implementation and their contribution to sustainability in European cities. Two questionnaires of users\u2019 needs analysis were designed and implemented in Berlin, Bologna, Budapest, and Cartagena. The results unveiled the need to re-enforce the training in the formation and community building phases of community gardens towards ensuring the creation of an engaged gardening community to maintain activity, particularly for top-down activities (e.g., research-related gardens). Users claimed their need for being trained on crop management skills (e.g., maintenance, bed preparation, organic practices) and on communication skills to further disseminate their activity, thereby increasing the potential for citizen engagement. Such requirements could be overcome with the creation of urban gardens networks, where experiences and knowledge are shared among practitioners. Policy recommendations are provided based on the outputs of this study