Research & reports

Mansur Usman Dawaki, Abubakar U. Dikko, S. S. Noma, Umar Aliyu · Food and Energy Security · Nigeria

This study evaluated pollution risks to food security from urban agriculture in Kano, Nigeria, by sampling soil, water, and lettuce from two wastewater-irrigated sites (Challawa, Jakara) and a control site (Watari). Results showed all sites were contaminated with Cu, and the domestic wastewater site was slightly polluted with Pb and excessively polluted with Cd and Cr. Metal levels in irrigation waters exceeded recommended thresholds, and plants at the domestic wastewater site accumulated metal concentrations (Pb=26.21 mg/kg, Cd=1.03 mg/kg, Cr=28.63 mg/kg, Cu=2.66 mg/kg) that exceeded allowable limits in vegetables, indicating a human ingestion risk.

Andrew Butt · Economic Papers A journal of applied economics and policy · Australia

This article reviews changes in farm output and structure in peri-urban regions around Australia's cities. It concludes that farming in these regions is changing differently from other agricultural regions, with productivity centered on a few high-value activities. The majority of peri-urban farming, while potentially providing landscape services, is unable to adjust to changing productivity regimes, creating vulnerabilities for these farming systems.

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.

Teferi Daba Lemma, M. S. A. Rao, M Prasada Rao · Zenith international journal of business economics and management research · Ethiopia

This study assessed the economic sustainability of urban agriculture in central Ethiopia, collecting primary data from 280 urban and peri-urban vegetable farmers. Findings indicated that urban agriculture is a viable livelihood strategy from a financial perspective. However, city administrations and policymakers pay little attention to supporting this sub-sector, suggesting that legal recognition and support would make it a more reliable strategy.

Samuel Henrique Damas Marinelo, Sandra María Fonseca da Costa, Leonardo Freire de Mello · Anais ENANPUR · Brazil (São Paulo)

In São José dos Campos, São Paulo, Brazil, residents of the Altos de Santana neighborhood maintain traditional peasant characteristics by cultivating urban gardens within a Permanent Protection Area of the Paraíba do Sul River. However, the current municipal administration plans to implement an urban park in this area, which will remove the gardens cultivated by these resident farmers. This intervention is expected to alter proposals for improving the quality of life for nearby residents concerning urban agriculture, potentially generating conflicts between stakeholders regarding land use.

Lauren M Bitter · Scholarship @ Claremont (The Claremont Colleges) · United States (California)

This autoethnographic thesis centers on the People and Their Plants garden in Upland, California, which represents the ecological changes caused by colonization in Southern California. The study critiques research and ethnography by examining the politics of knowledge, language, history, and ecology, and interrogates colonial/capitalist food systems that render Indigenous ways of knowing invisible. The People and Their Plants garden is presented as an act of resistance, creating space for alternative economic and decolonial food practices.

Lindsey Sarann Hallock · · Global

This paper examines the rise of vertical farms, arguing that they advance the corporate food regime and promote urban elite consumption. It differentiates vertical farms as local food projects that reproduce the capitalist industrial system rather than challenging it, facilitated by devalued built environments and labor surplus in neoliberal cities. The study concludes that these farms reproduce troubling trends in the corporate food regime, signifying capital's ability to standardize food cultivation and incorporate it into factory-like production systems.

Atănăsoaie George Sebastian · Annals - Economy Series · Global

Community Supported Agriculture (CSA) farms are an alternative to conventional agriculture but face numerous policy issues related to product, price, distribution, and promotion. A literature review indicated that farmers need to offer more flexible basket content in terms of quantity and product type, and consumers require information on product preparation and preservation. To offset the negative impact of high prices, measures such as cost reduction, flexible payment rescheduling, and compensation for financial resource deficits are necessary.

WU De-hu · Anhui nongye kexue · China (Zhengzhou)

This study elaborated on the significance of developing characteristic agriculture in China's Central Economic Zone, using Zhengzhou urban agriculture as an example. It identified existing problems in urban agriculture development, including understanding deviation, extensive development, market confusion, short industrial chains, low specialization, and harsh environments. The research proposed countermeasures such as strengthening government macro-control, perfecting compensation mechanisms, and promoting scientific innovation and industrialization.

Freda G. Sampson, Thomas G. Costello, Stacey Stevens, Desiree Squire · Journal of Law and Society · United States (Detroit)

This paper examines Detroit, United States, as a city in crisis, analyzing redevelopment conflicts between gentrification and revitalization. It applies a "Litmus Test for Equity and Opportunity" to current redevelopment efforts, including the Detroit Future City Plan and projects by Michael Ilitch & Company and Dan Gilbert. The analysis suggests that despite efforts, the complexities of this post-industrial city, particularly regarding its predominantly African-American population, are only superficially addressed, indicating ongoing equity challenges.

Marijke D’Haese, Nick Vink, Tharcisse Nkunzimana, Ellen Van Damme, Johan van Rooyen, Anne-Marie Remaut, Lotte Staelens, Luc D’Haese · Development Southern Africa · South Africa

Food insecurity remains high in rural KwaZulu-Natal province, South Africa. This study collected data from 390 beneficiary households in 2010 to assess the perceived impact of the Empowerment for Food Security Programme, launched in 2007, on food security. Findings confirmed that experience-based food insecurity levels were still high, despite the agricultural support program and government income transfers. However, respondents attributed improved dietary diversity and better access to resources to the program.

Prem José Vazhacharickal, Martina Předotová, D. Chandrasekharam, Sharit K. Bhowmik, Buerkert, Andreas · Journal of Agriculture and Rural Development in the Tropics and Subtropics (University of Kassel) · India (Mumbai)

A study surveyed 38 railway gardeners to characterize urban and peri-urban agricultural production along railway tracks in the Mumbai Metropolitan Region. Irrigation water contained nutrients but also heavy metals such as lead, cadmium, and mercury, and pathogens like Escherichia coli. Heavy metal levels exceeded critical thresholds in surface soils for chromium, nickel, and strontium, and in produce for lead, cadmium, and strontium.

Philani Moyo · Journal of Human Ecology · Zimbabwe

This study qualitatively examined the role and contribution of urban agriculture to household food security, employment creation, and income generation among low-income working-class and urban poor households in Bulawayo townships, Zimbabwe. It was found that urban food production significantly contributes to household food access and security, improving dietary diversity and nutritional intake. However, the potential of urban agriculture is constrained by factors including land tenure insecurity, erratic water access, small plot sizes, inadequate capital for optimizing plot productivity, and ambivalent application of urban land-use laws.

Danfeng Huang · Journal of Changjiang Vegetables · Global

This paper discussed the importance of intensive vegetable production in urban agriculture, highlighting its role in guaranteeing the supply, quality, and safety of fresh vegetables. It summarized key aspects of intensive production, including industrialized seedling production, facility production, efficient cultivation, postharvest processing, and commercial management, but also presented environmental problems and restricting factors in the development of intensive vegetable production.

Roseline J. Akinlade, Olubunmi Lawrence Balogun, Adekemi A. Obisesan, Akinlade, Roseline J., Balogun, Olubunmi L., Obisesan, Adekemi A. · AgEcon Search (University of Minnesota, USA) · Nigeria

This study analyzed the determinants of commercialization among 230 urban vegetable farmers in Oyo and Lagos states, southwest Nigeria, using primary survey data and a Tobit model. It found that farmers' participation in domestic and regional markets remains low due to various constraints, notably poor market access. The average farm size was 0.05ha, and the average market participation index was 0.73. Factors influencing commercialization included age, farm size, association membership, education, distance to market, and input costs. The study concluded that social capital significantly affects market participation, and recommended proactive support from governments and NGOs to facilitate farmer organizations and market linkages.

Marc van lersel · · Global

Agriculture faces the 21st-century challenge of feeding a growing, urbanizing population while minimizing negative environmental impact. Urban farming has been presented as a potential solution to perceived problems with conventional agricultural production, but its effectiveness as a comprehensive solution is questioned.

Marianne Sarkis, Tiffany Lee, Steph Fenner, Erin Barta, Kristina Kalolo · Clark Digital Commons (Clark University) · United States

Research was conducted using free-list, pile-sort, interviews, and surveys to examine the association between community gardening and food justice among Clark community gardeners in Worcester, MA. The findings supported the conclusion that Clark community gardeners do not conform to the food justice interpretation of a community garden. Although both actors share similar methods and ideologies, neither is attempting to fit the other's definitions.

김효정 · 한국여성학 · South Korea

Through in-depth interviews and participant observation research targeting women's activist organizations established since 2010, the characteristics of urban agriculture cases led or participated in by unmarried women in their 20s and 30s were analyzed. Unmarried women activists met the growing demand for safe and healthy food among single-person households through community farming in urban areas, practicing agriculture not only for food production but also as a lifestyle pursuit and recreational culture. However, their practices face limitations such as urban space constraints, difficulties for unmarried women to relocate to rural areas, excessive ecological value attribution, and a lack of solidarity with rural communities.

Rachel Slocum, Arun Saldanha · · Global

An edited collection (2013) argues that an unacknowledged racial dimension underlies the production and consumption of food under globalization, examining this across three "socio-physical spatialities"—fields, bodies, and markets—through international, multidisciplinary case studies. The volume states that human groups become entrenched in racial hierarchies through food at scales ranging from the household to the slave trade and empire, and includes a chapter specifically addressing urban agriculture and race in South Africa (by Jane Battersby) among contributions covering topics such as bracero labor in California and food-justice organizing in Newtown. The abstract presents this as the collection's conceptual argument rather than as findings from a single empirical study.

Ruth Stewart, Marcel Korth, Laurenz Langer, Shannon Rafferty, Natalie Rebelo Da Silva, Carina van Rooyen · Environmental Evidence · Global

This is a systematic review protocol — not a completed review — that sets out methods for identifying, appraising and synthesizing evidence on how urban agriculture programs affect food security and nutrition in low- and middle-income countries. It notes urban agriculture is widely promoted as providing the urban poor with food and income while improving the urban environment, but also carries potential disadvantages: use of wastewater can contaminate produce, intensive irrigation can spread malaria and water-borne disease and strain limited water supplies, and soil erosion and intensive fertilizer/pesticide use can pose health risks and environmental damage. Despite the current policy drive to promote urban agriculture, the paper states that the evidence base for its benefits and harms is not well understood. As a protocol, it reports planned search, screening, bias-appraisal and synthesis methods rather than results.

박진욱, 안계복 · · South Korea

This study analyzes the current state of urban farming in South Korea through its legal system, the implementation status of the urban farming act, on-the-ground conditions, and comprehensive plans, in order to identify institutional improvements. It concludes that securing more space for urban farming and improving the support system for urban farmers are the two essential factors for improvement, and that—beyond these institutional and systematic reforms—enthusiastic engagement from local governments, secured budgets, and cooperation with citizens are necessary to expand sustainable urban farming.

Kathryn Colasanti, Michael W. Hamm, Charlotte M. Litjens · Urban Geography · United States (Detroit)

This research explores perceptions of expanding urban agriculture in Detroit, Michigan, through semi-structured interviews and focus groups. While revealing widespread support for urban agriculture as a strategy for food security and urban sustainability, the study highlights contested aspects regarding the extent to which it should occur, its purpose, and the people it would involve.

Nathan McClintock, Heather Wooten, Alethea Brown · Journal of Agriculture Food Systems and Community Development · United States (California)

This 2012 reflective case study documented the efforts of the Oakland Food Policy Council (OFPC) in Oakland, California, to develop recommendations for urban agriculture zoning. Despite popular interest in urban agriculture, zoning often acts as an obstacle to its expansion. The OFPC faced obstacles in gaining the attention of city officials and advancing its policy agenda for new zoning definitions and operating standards for urban agriculture.

Chiara Tornaghi · · United Kingdom

This academic-activist research on grassroots urban agriculture initiatives, focusing on four projects in Leeds, UK, found that local and regional institutions have limited ability to respond to these new demands. Planning traditions constrain institutions, failing to create flexible public spaces. Consequently, short-term solutions are found in "loose spaces" or ad-hoc negotiations, but these remain emergency or residual practices, highlighting challenges for urban public space management.

Coline Perrin · International Planning Studies · France, Italy

Case studies in Provence and Tuscany indicate that planning prescriptions and land-market control are insufficient for protecting farmland on the urban fringe. Farmland is not effectively protected if regulatory approaches are not integrated into a global strategy for agriculture and food based on community involvement. Farmland protection policies are more effective when combining top-down policies with bottom-up initiatives and recognizing the multifunctional character of urban agriculture.