Research & reports

Ana Cristina Torres, Anne Caroline Prévot, Sophie Nadot · Letras Verdes Revista Latinoamericana de Estudios Socioambientales · France (Paris)

A study of 9 Parisian community gardens revealed the limitations of the dominant approach in conservation sciences and urban planning, which seeks to halt environmental deterioration by establishing an ethical basis of attitudes deemed appropriate for conserving a particular nature, by limiting human-nature interaction. Considering citizen subjectivities, the study offers perspectives to nourish conservation sciences and rethink cities.

S. J. Ibitoye, U Shaibu, Firdaus Sale, Oroka Frank · International Journal of Agricultural and Veterinary Sciences · Nigeria (Kogi State)

This study assessed the influence of urban agriculture on household income in Kogi State, Nigeria, using data from 120 urban farmers. Urban agriculture was found to increase household income at a 90% confidence level. However, urban farmers faced significant constraints including inadequate capital (M=2.9), poor extension services (M=2.4), and high labor costs (M=2.2).

Jae-Youl Lee · 대한지리학회지 · South Korea (Seoul)

This article examines the concept of 'community' in Seoul's community garden program, comparing how ordinary citizens and civil society activists interpret and practice it. Empirical findings suggest a contestation over community, with ordinary citizens prioritizing place-based experiences and activists viewing community gardens as a governmental technology. A gap between ordinary practical achievements and civic activism poses a potential danger to urban community policy.

Eduardo De Miguel, Miguel Izquierdo‐Díaz, Amaia Gómez, Juan Mingot, Fernando Barrio‐Parra · Environmental Toxicology and Chemistry · Spain (Madrid)

Forty-two soil samples from seven urban gardens in Madrid, Spain, were collected to measure concentrations of arsenic, antimony, and selenium, along with soil properties. Antimony concentrations exceeded recommended values for agricultural use in 70% of the urban gardens. A human health risk assessment indicated acceptable levels for noncarcinogenic and carcinogenic risks, though carcinogenic values were elevated, with arsenic identified as the main risk driver.

Katherine Alexandra Herrera Hernández, Yohanna Marcela Pinzón, Ruth Zamira Herrera Rincón · · Colombia (Bogotá)

This project aimed to contribute to the study of Urban Peri-urban Agriculture (UPA) in Bogotá by describing projects led by the José Celestino Mutis Botanical Garden from 2004 to 2016, analyzed from an environmental education perspective. Using a qualitative methodology, the study investigated fundamental elements in education-management development, such as participation, the construction of the concept of environment, and the strengths and weaknesses in achieving these projects within the framework of successive city governments during that period.

Prince Antwi-Agyei, Anne Peasey, Adam Biran, Jane Bruce, Jeroen H. J. Ensink · PLoS ONE · Ghana (Accra)

This study, conducted from September 2012 to August 2013 with 490 respondents in Accra, Ghana, assessed knowledge and awareness of wastewater use in urban agriculture. It found low awareness of irrigation water sources among consumers and street food vendors, and low health risk awareness among farmers, despite high awareness among salespersons and consumers. Crucially, consumers did not prioritize health indicators when purchasing produce, and farmers' health risk awareness did not influence their adoption of safer practices.

Emad Abdulrahman Al-Heety, Kadhim H. Yassin, Safa Abd-Alsalaam · Human and Ecological Risk Assessment An International Journal · Iraq (Baghdad)

This study evaluated the health risk of heavy metals (Cd, Cr, Cu, Ni, Pb, Zn) in soils from 14 urban community gardens in Baghdad City, Iraq. The non-carcinogenic hazard index (HI) was below the threshold (HI < 1), indicating no non-carcinogenic hazard. However, the carcinogenic risk index (RI) for Cd, Cr, and Ni exceeded the unacceptable threshold (RI < 1 × 10−4), demonstrating a serious carcinogenic risk for children and adults in the study area.

LE Wynne, Dana Cordell, Joanne Chong, Becky L. Jacobs · UTS ePRESS (University of Technology Sydney) · Australia (Sydney)

This report, using Sydney as a case study, examines land-use planning on the urban fringe for peri-urban food production. It finds that for many cities, including Sydney, a large proportion of peri-urban food production has already been lost due to conversion to residential and infrastructure uses. The report reviews various planning responses to address threats to peri-urban agriculture.

Solange Hernandez · International Review of Administrative Sciences · France

This case study in the urban community of Pays d’Aubagne et de l’Etoile, France, over 25 years, aimed to understand paradoxical territorial management practices in peri-urban agriculture. Based on quantitative analyses of qualitative data, the study demonstrated the relevance of these management practices in action, but identified paradoxes as a recurring source of tension and deadlock in territorial public administration. The research proposes managerial tools applicable in the framework of public action in peri-urban agriculture.

Heather Ohly, Sarah Gentry, Rachel Wigglesworth, Alison Bethel, Rebecca Lovell, Ruth Garside · BMC Public Health · Global

A systematic review of 40 articles on school gardening programs found that quantitative research was generally of poor quality, with limited evidence for changes in fruit and vegetable intake based on self-report. Qualitative research, though of better quality, attributed a range of health and well-being impacts to school gardens, but more robust quantitative research is needed to support these findings.

Mujtaba Baqar, Nadia Jamil, Naveed Ahsan, Kiran Khanum, Abdul Qadir, Mariyam Zameer, Anam Khalid · Transylvanian Review · Pakistan (Lahore)

This case study investigated the impacts of heavy metals from wastewater irrigation on soil, groundwater, and leafy vegetables (Indian mustard, spinach, fodder) in the Charrar Drain catchment, Lahore, Pakistan. Samples were collected from seven sites. Drain water showed Cd, Cr, and Pb concentrations exceeding limits at most sites, and groundwater Cd concentrations also exceeded limits, though Cr and Pb were within permissible ranges. Soil samples contained Cd, Cr, and Pb, and leafy vegetables irrigated with wastewater showed varying heavy metal concentrations, indicating a heavy metal bioaccumulation issue that may exceed threshold limits.

Masdjidin Siregar · Jurnal Agro Ekonomi · Indonesia (Jakarta)

This paper describes intensive peri-urban leafy vegetable agriculture in Jakarta, which utilizes idle land and provides employment and income for rural migrants. However, the prospect of this agriculture is unclear because it uses non-agricultural land that will eventually be developed. The study concludes that government assistance in credit, extension, and research is needed, and alternative lands for cultivators must be found.

Elke Rogge, Eva Kerselaers, Charlotte Prové · · Europe

This study explores opportunities and challenges for peri-urban agriculture, examining envisioning processes in Ghent and Kortrijk, Belgium, initiated by local authorities. Results indicate that pressure on farmland is a key issue in both contexts. Multifunctionality is complex in practice and governance, and successful envisioning processes require clear objectives, defined study areas, policy support, strong leadership, and reliable data.

Kirsten Schwarz, Bethany B. Cutts, Jonathan London, Mary L. Cadenasso · Sustainability · Global

This paper proposes reframing the issue of soil lead contamination and urban gardening in shrinking cities from a potential conflict to a potential solution. Many shrinking cities face high soil lead burdens from their industrial past and the historic use of lead-based paint and leaded gasoline, which is often seen as a barrier to urban agriculture. The paper argues that urban gardening can be a solution to the soil lead problem through soil management, including soil testing and the addition of amendments, and through social network and community building.

Daniel Orlins Trigg · ScholarWorks -A service of University of Vermont Libraries (University of Vermont) · United States

This study investigated food insecurity screening among clinicians in Vermont, where 76% of residents experience some level of food insecurity. It found that physicians and physician assistants prefer using an established two-item screen for food insecurity. However, these clinicians tend to underestimate the actual prevalence of food insecurity in their practice communities.

G. A. Abu, A. Soom, Abu, Godwin Anjeinu, Soom, Aondonenge · AgEcon Search (University of Minnesota, USA) · Nigeria

This study examined factors affecting food security in 180 rural and urban farming households in Benue State, Nigeria, using structured questionnaires. It found that 53.3% of rural and 62.2% of urban households were food secure based on calorie intake. Key constraints to food security included lack of access to credit, inadequate land, poverty, soil infertility, and storage/processing problems.

Alesia Montgomery · International Journal of Urban and Regional Research · United States (Detroit)

A case study of downtown Detroit theorizes that the history of clashes between racial capitalism and social movements in public space reappears in the contradictory design of market-driven placemaking. This placemaking subordinates the black urban poor, even while incorporating black entrepreneurs and culture. Consequently, it suppresses the ability of African Americans to shape public space, despite the return of the white middle class to central cities.

Sandy Smith‐Nonini · Anthropology in Action · United States

This article discusses lessons learned from Eco-Cycle, a social enterprise supporting sustainability education in central North Carolina, U.S.A., since 2011. Eco-Cycle faced the challenge that many social justice-oriented green initiatives emulating urban agriculture models are grant-dependent in early years and achieve economic sustainability with difficulty. However, this non-profit co-op of upcycler crafters and vintage vendors grew from the production and marketing of upcycled rain barrels, pursuing economic sustainability through a social enterprise approach.

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.

Lorelei L. Hanson, Deborah Schrader · Interdisciplinary Environmental Review · Canada (Edmonton)

This case study critically examined the development of a food and urban agriculture strategy in Edmonton, Canada, using survey data and semi-structured interviews with citizens and stakeholders. It explored the transformative potential of local urban food initiatives and identified hurdles in moving beyond maintaining the status quo. The study aimed to identify leverage points for long-term local food system transformation within conceptualizations of sustainability.

Matthew M. Mars · Journal of Agriculture Food Systems and Community Development · Canada (Vancouver)

Michael Ableman's book "Street Farm" tells the story of how an urban farm transformed vacant lots in Vancouver, Canada's Low Tracks neighborhood into sites for food production, partial community restoration, and nurturing the human spirit. The narrative reveals a tenuous balance between the promises of urban farming and the harsh realities of addiction, hunger, homelessness, and violence often characterizing inner-city conditions. Urban agriculture is presented as a means to sustainably produce food for a city while also feeding the souls of disenfranchised individuals and communities.

Jin-Hee Ju, Won-Tae Kim, Hui Xu, Young-Han Yoon, Eun‐Young Choi · Journal of Environmental Science International · Global

This study investigated the influence of hydrophilic polymer (HP) mixture ratio on the growth of eggplant (Solanum melongena) for lower maintenance urban agriculture via green roofs. As the hydrophilic polymer mixture ratio increased, the growth index, number of leaves, leaf length, leaf width, and dry weight of shoot and root decreased. Specifically, these values were significantly lower in HP5.0% and HP10.0% treatments compared to the control, and the survival rate was lowest at 56% in the HP10.0% treatment.

Sara L. Lyons · DigitalCommons (California Polytechnic State University) · United States

The University of Maine Black Bear Food Guild is an entirely student-run Community Supported Agriculture (CSA) operation that offers student learning and work opportunities. Despite providing various benefits, the Black Bear Food Guild requires financial support to expand its program and ensure its sustained success, indicating a critical need for funding to maintain its future viability.

Bethany B. Cutts, Danqi Fang, Kaitlyn Hornik, Jonathan London, Kirsten Schwarz, Mary L. Cadenasso · Environmental Justice · United States (California)

This study introduced a Qualitative Historical Geographic Information System (QHGIS) method to investigate how newspapers reflect changing meanings of place in relation to environmental burden and benefit. Applying QHGIS to urban gardening and soil lead issues reported in Sacramento, California, the method revealed the distribution of public narratives of environmental concern across the city, the politics embedded in location names, place name-changes, and how locations serve as framing devices for environmental concerns.

Diana Mincytė, Karin Dobernig · Environment and Planning A Economy and Space · North America

This article examines manual work in urban farming within alternative food networks in the Northeastern United States, based on ethnographic fieldwork and 40 interviews. The analysis reveals that while manual work counters alienation, it also reproduces consumer society institutions and reinforces neoliberal values like productivity and self-improvement. Urban farms function as "experiential production" sites, where the farming experience is continuously commodified despite re-embedding in community and environment.