Research & reports

Jonathan Crush, Bruce Frayne, Cameron McCordic · Journal of food security · Africa

This study uses household survey data from Maseru, Lesotho, to assess the relationship between household engagement in urban agriculture and food security. It found no consistent, statistically significant relationship between urban agriculture practice and food security; some urban agriculture practices were associated with significantly greater odds of food security only among middle-income households in the sample. Because the observed benefits appeared conditional on household income, the study concludes that a generalized, production-centered approach to food insecurity may not be the most effective means of addressing household food insecurity in Maseru.

Sostenis Sampeliling, Santun R.P. Sitorus, Siti Nurisyah, Bambang Pramudya · Analisis Kebijakan Pertanian · Indonesia (DKI Jakarta)

This study analyzed key factors influencing the sustainability and policy development of urban agriculture in DKI Jakarta, Indonesia, using MDS and Rap-Ur-Agri methods. The analysis found that the existing sustainability status of urban agriculture development had an index value of 48.70%, indicating it was less than sustainable. Key factors for sustainable urban agriculture include yard area, eco-friendly commodity and technology development, agricultural extension and institutions, expansion of farming land/space, stakeholder cooperation, and agricultural incentives.

Cécile Faliès · Problèmes d Amérique latine · Chile (Santiago)

This article provides an overview of agriculture around Santiago, Chile, based on fieldwork conducted since 2005. Despite the presence of agriculture linked to Santiago and Valparaiso, and the emergence of some forms like organic farming, it is difficult to classify this as urban agriculture due to the peripheral location and limited number of plots. The study indicates that urban agriculture, as commonly defined, has a limited presence in the Santiago metropolitan area.

Diogo José Amorim de Almeida, Dilamar Dallemole, Arturo Alejandro Zavala Zavala · Revista Ibero-Americana de Ciências Ambientais · Brazil (Varzea Grande)

This study analyzed the urban and peri-urban horticultural production structure in Varzea Grande, Mato Grosso, Brazil, using an exploratory empirical and bibliographic approach followed by Cluster Analysis of primary data from local producers. Despite contributing to food production and maintaining disease-vector-free land, the research found that this activity is in decline. Its low profitability and challenging commercialization process make it unattractive or merely a supplementary income, as small productive forces struggle to sustain themselves against the current market structure and unfavorable social policies.

George Martin, Roland Clift, Ian Christie · Sustainability · Global

This exploratory study examined three urban cultivation sites in New York, London, and San Francisco to assess their nutritional, ecological, and social sustainability contributions. Field analysis revealed very low food outputs relative to the populations of their catchment areas, indicating that most urban food will continue to come from outside urban peripheries. The study concluded that urban food growing's sustainability benefits are more social than agronomic or ecological.

Vera Institute of Justice · Vera Institute of Justice · United States

Published 21 September 2016. The Vera Institute of Justice reports its independent evaluation of ABLE, a programme for 16- to 18-year-olds at New York City's Rikers Island funded through the first US social impact bond. Using a quasi-experimental design comparing a 2013 cohort with people entering jail from 2006 to 2010 and with ineligible 19-year-olds, it tracked recidivism bed days over one year. The change in recidivism for eligible 16- to 18-year-olds was not statistically significant; the programme missed its pre-defined 10 per cent threshold and was discontinued on 31 August 2015.

Simon Hazell, Victoria Delbridge, Beatrice Conradie · UR UCT Undergraduate Research · South Africa

A study in Lavender Hill, Cape Town, South Africa, interviewed 50 participants in the Mothers Unite programme to assess the benefits and constraints of homestead-based urban agriculture. Despite the potential for food gardening to alleviate food insecurity and free up 11% of household income, two-thirds of the group had not tried it. Barriers to adoption included lack of space and limited cash flow, with respondents showing little concern for water or compost costs.

Yuki Kato · Journal of Agriculture Food Systems and Community Development · United States (New Orleans)

This case study, based on ethnographic observation and interviews, examined an alternative food market in a New Orleans neighborhood to understand different views of "community." The study identified four distinct groups—community gardeners, locavores, hipsters, and local residents—each with different expectations for the organization. Findings did not demonstrate a unified community emerging around this organization, with no single group staking a claim on it.

Alan Hallsworth, Alfred Wong · International journal on food system dynamics · United Kingdom (Portsmouth)

This empirical case study examined the potential for urban gardening to contribute to individual food security. Focusing on Portsmouth, England, the study found that prevailing economic and social structures hamper the likelihood that urban gardening can offer much greater food security. Realistically, contemporary urban gardening most closely resembles a middle-class pursuit for personal enjoyment, rather than a significant contributor to food security.

Geneviève S. Metson, Elena M. Bennett · PLoS ONE · Canada (Montreal)

This study quantified the role of urban agriculture (UA) in phosphorus (P) cycling in Montreal, Canada, using existing data and surveys of local UA practitioners. In 2012, Montreal imported 3.5 Gg of P in food, with 2.63 Gg accumulating in landfills, 0.36 Gg discharged to local waters, and only 0.09 Gg recycled through composting. UA was found to be only a small sub-system in the city's overall P cycle, contributing just 0.44% of the P consumed as food. Although recycling rates within the UA system are high, the land area dedicated to UA is too small to accommodate all P waste produced on the island.

E.J. Veen, P.H.M. Derkzen, A.J. de Visser · Food and Foodways · Netherlands

This article compares food acquisition habits among participants in four Dutch urban food-growing initiatives: two allotments and two Alternative Food Networks (AFNs). Allotment gardeners integrate gardening into daily routines and easily use harvests, while AFN members, who primarily engage in shopping, struggle to regularly consume urban-grown food due to competition with supermarkets. The study concludes that involvement in shopping versus growing significantly impacts urban-grown food consumption, indicating a limited effect of motivations to change the food system when confronted with everyday routines.

Ranka Junge, Andreas Graber · Zürcher Hochschule für Angewandte Wissenschaften digital collection (Zurich University of Applied Sciences) · Global

This paper discusses the need for practical tools and a stronger scientific base for sustainable urban farming, noting that visionary schemes often lack current practical application with available technologies. It identifies requirements for urban food production, including high quality, safety, and cost-effectiveness, and suggests innovations in planting, pest control, irrigation, and integration with existing building infrastructures. Aquaponics is presented as having the potential to contribute to all these aspects.

Maeve Bassett · Fordham Research Commons (Fordham University) · Global

Urban gardens are advertised as a solution to limited food access in impoverished areas, but they are not productive enough to globally affect food production and the environment. However, for surrounding communities, urban gardens are cheap and effective solutions for many problems associated with poverty and food deserts, such as obesity, education, social interactions, income supplementation, health issues, dangerous neighborhoods, and refugee assimilation.

Nobuhle Sebata, Clifford Mabhena, Mkhokheli Sithole · IOSR Journal of Humanities and Social Science · Zimbabwe

A qualitative study in Bulawayo, Zimbabwe, using data from 30 women, 5 key informant interviews, and 2 focus groups, examined urban agriculture's role in women's poverty resilience. While urban agriculture significantly improved food availability and access, its nutritional contribution was low due to a focus on maize, and income generation remained very low due to subsistence production.

卓也 林 · Institutional Repositories DataBase (IRDB) · Japan (Inagi City)

This study examined the management characteristics of direct farm sales outlets and the role of agriculture in urban areas, using pear farmers in Inagi City, Tokyo, as an example. Field surveys confirmed a decrease in pear picking activities and a high ratio of direct sales and home delivery. While familiarity with agriculture has increased due to farmers' cooperation in agricultural experience learning and the establishment of many community gardens, a limitation was identified: to convey the value of urban agriculture to those with low interest, the enhancement of pear picking, allowing easy interaction with farmers on farmland, is required.

Terri Evans, Christiana Miewald · Journal of Agriculture Food Systems and Community Development · Global

Community gardens and other local food initiatives are insufficient strategies to replace the quantity and efficiency provided by contemporary globalized food systems for supplying cheap food to urban populations.

Evan Weissman · Journal of Agriculture Food Systems and Community Development · United States (New York City)

This essay refutes the claims by Hallsworth and Wong (2013) that the benefits of urban food gardening are exaggerated and that it cannot deliver fresher or lower-cost foods. It states that Hallsworth and Wong's assumptions are incorrect and that urban gardening plays a significant role as public space, an economic development strategy, and a community-organizing tool, contributing to household food security. For example, a 0.2-hectare urban farm project in Brooklyn, New York, "East New York Farms!", produces over USD20,000 of fresh produce annually, with over 70% of transactions made through SNAP, reaching high-need community members.

Anushiya Shrestha, Rajesh Sada · · Nepal (Kathmandu)

Climate change and its impacts on peri-urban agriculture were investigated in four peri-urban villages in the Kathmandu valley, Nepal. Temperature showed an increasing trend, while rainfall was erratic with no distinct pattern. These changes primarily had negative impacts on agriculture, leading to increased crop pests and diseases and a decline in crop production.

Alan Hallsworth, Alfred Wong · Journal of Agriculture Food Systems and Community Development · Global

A short commentary on urban gardening. It states that although urban gardening is highly popular among civic politicians and some vocal advocates, there is no basis to expect this food-supply concept could ever deliver fresher or lower-cost food to most people living within the structure of a modern urbanized society.

Jenny Calabio, Ma. Luisa Albacete · WVSU Research Journal · Philippines (Iloilo City)

This study, conducted from July 2007 to July 2008 at the Urban Agriculture Demonstration Site in La Paz, Iloilo City, evaluated soil media and ameliorants for container-grown green onion, pechay, and tomato. Pure compost was found to be the best medium for increasing yields. However, the use of IMO and rice hull as soil ameliorants did not increase yields for the three tested vegetables, and rice hull generally reduced pechay yields.

Jennifer E. Reeves · OhioLink ETD Center (Ohio Library and Information Network) · United States (Cleveland, Ohio)

This two-year study in Cleveland, Ohio, USA, investigated urban soil health via nematode food web analysis and crop productivity via tomato fruit yield in urban gardens. Market gardens showed significantly more soil organic matter, nitrogen pools, and nematode presence than community gardens in both 2011 and 2012. However, despite these differences, there was no significant difference in the total yield of tomatoes per square meter between market and community garden types in either year. Gardens with raised beds had significantly more soil moisture content and soil organic matter than those with flat beds.

Kevin Wonch · Hope College Digital Commons (Hope College) · United States (Detroit)

This study examines urban farming in Detroit, a city experiencing rapid decline with a population under a million, limited access to fresh food stores, and extensive vacant land. While arguing for modern urban farming as a foundation for sustainable practices and positive development, it notes that some political and business analysts question its ability to make a significant impact on the city’s future.

Mary Caesar, Jonathan Crush, Trevor Hill · Scholars Commons (Wilfrid Laurier University) · South Africa (Msunduzi Municipality)

A study on food security in Msunduzi Municipality, South Africa, was part of AFSUN's baseline survey across eleven Southern African cities. The survey found that urban poor in Msunduzi are significantly worse off than those in Cape Town and Johannesburg, with one-third of households reporting frequent food shortages. Urban agriculture is not particularly significant in Msunduzi, and while supermarket supply chains dominate the food system, they do not meet the needs of the poor.

Les Levidow, Katerina Psarikidou · · United Kingdom

In Manchester, England, environmental and health issues have been folded into a wider agro-food strategy aimed at making the city "more sustainable." With support from state bodies and charities, several initiatives have expanded access to fresh, healthy food, particularly in "food deserts," mobilizing resources, skills, and voluntary labor through "community engagement" to create "community spaces" for social inclusion. Manchester's agro-food networks shorten supply chains by linking peri-urban agriculture more directly with urban consumers and by promoting urban agriculture grounded in local resource mobilization and personal trust, offering an alternative to conventional agro-food chains; food relocalisation is described as helping overcome socio-economic inequalities and health problems, with Manchester initiatives cooperating to build environmentally sustainable, socially just, healthy communities and reconstructing local identities and social commitments, within a national policy context that advocates food relocalisation but provides little actual support. Despite that activity, the larger food system in Manchester remains dominated by conventional agro-food chains, and community food initiatives play only a marginal role, leading practitioners to discuss how to overcome these limitations; from 2010 onward, the UK government's austerity regime is described as undermining state support further, making community engagement even more important for mobilizing resources.

Luc Hippolyte Dossa, Andreas Buerkert, Eva Schlecht · Human Ecology · Sub-Saharan Africa

A study surveyed 700 randomly selected households across Kano (Nigeria), Bobo Dioulasso (Burkina Faso), and Sikasso (Mali) to explore the relationship between household socioeconomic status (SES) and participation in urban and peri-urban agriculture (UPA). The results showed no significant differences in UPA participation rates across socioeconomic groups. Instead, UPA participation was significantly and positively related to household size.