Research & reports

Manuela Maluf Santos, Paulo Eduardo Moruzzi Marques · Estudos Avançados · Brazil (São Paulo)

This article conceptually explores the "locavorism" food activism movement, noting that its practical application can have diverse and even antagonistic effects. To analyze these contradictions, two farmer organizations in São Paulo involved in local consumption circuits were interviewed to understand the potential social and environmental effects of this purchasing model. The abstract does not present the findings of these interviews.

Julia Davies, Corrie Hannah, Zack Guido, Andrew Zimmer, Laura E. McCann, Jane Battersby, Tom Evans · Food Policy · Sub-Saharan Africa

This study investigated the association between urban agriculture (UA) and household food security in smaller African cities and towns, using survey data from 2,687 low- and low-middle income households in 18 urban areas with populations of less than 200,000 across Zambia and Kenya. The analysis found that 33% of households in the sample engaged in UA, but there was limited statistical significance in the relationship between UA and household food security. Key barriers identified were settlement formality, property rights, and distance from food retailers.

Paule Olivia Akotto, Dorothée Boccanfuso, Marie-Ève Yergeau · Cahiers de recherche · Global

This exploratory review synthesizes 35 reports and articles published between 1980 and 2019 to assess the potential of urban and peri-urban agriculture (UPA) to build resilience against poverty, food insecurity, and environmental challenges in developing countries. The review found that UPA creates one job for every 50 to 100 individuals, but these jobs are generally seasonal, and market access remains a significant constraint for farmers.

Azizan Marzuki, Ahmad Sahir Jais · PLANNING MALAYSIA · Malaysia

This qualitative exploratory review, based on a Systematic Literature Review of secondary data, investigated the connection between urban sprawl and its impact on agricultural productivity and food security in Malaysia. The study found that urbanization did affect Malaysia's food security self-sufficiency level, particularly for land-intensive food products like vegetables and livestock, due to the conversion of agricultural lands.

Paulo de Oliveira Neto, Andréa Rossi Scalco, Ana Elisa Bressan Smith Lourenzani, Sandra Cristina de Oliveira · Ciência e Natura · Brazil

This study analyzed the impact of urban agriculture on food security in community gardens in the city of Maringá, Brazil. The research was carried out using the EBIA method, with descriptive statistical analysis and multiple linear regression procedures. The results indicate that the activity did not contribute to the food security of people who depend on the resources generated, whether for consumption or income.

Ali Keyvanfar, Arezou Shafaghat, Tan Sze Inn, Sapura Mohamad · DigitalCommons - Kennesaw State University (Kennesaw State University) · Malaysia

This research developed the Sustainable Urban Farming Index Assessment (SUFIA) Model to quantify and evaluate the performance of urban farms' sustainable food production. Applying a critical literature review and Analytical Hierarchy Process (AHP), the model identified reducing air pollution, soil health and water cleaning, and food sovereignty as critical for food productivity. When implemented at Zenxin Organic Farm in Malaysia for validation, the farm earned a Grade C, indicating it is a usable urban farm but requires substantial improvements in areas such as soil health, water cleaning, site design, and community environment.

Brittany Kesselman, Mvuselelo Ngcoya, Daniela Casale · Agroecology and Sustainable Food Systems · South Africa

This paper, based on research from two urban gardens in Johannesburg, South Africa, argues that contemporary urban dietary norms pose a challenge to urban agroecology. The dietary norms and practices of Johannesburg residents are poorly aligned with the production requirements and outputs of urban agroecology. Lessons from other countries suggest that the benefits of agroecology could be enhanced by targeting changes in food preparation and consumption practices.

Sandesh Thapa, Anjal Nainabasti, Sashila Acharya, Neha Rai, Rakshya Bhandari · International Journal of Applied Sciences and Biotechnology · Nepal (Kathmandu)

A key informant survey of 52 respondents was conducted in Kathmandu, Nepal, to assess the current status of rooftop gardening. All respondents expressed positive views on rooftop gardening, with rooftop farms covering 5-13% of the area. Significant monetary soft benefits were identified for food production, air quality, stormwater retention, and carbon sequestration. However, traditional methods using plastic bags, pots, and styrofoam were employed for garden maintenance. Constraints were recorded regarding rooftop farming establishment and continuation, indicating a need for proper training for efficient management.

Silvana Nicola, A. Ferrante, Giacomo Cocetta, Roberta Bulgari, Carlo Nicoletto, Paolo Sambo, Andrea Ertani · Bulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca Horticulture · Global

The Covid-19 pandemic revealed the vulnerability of the agrifood system, with lockdowns disrupting long-distance fresh vegetable supply chains and causing dramatic declines in local market sales. While purchases concentrated in supermarkets, increasing crowding risks, gardening can increase opportunities for local and fresh food availability. Scaling up local food production is important to enhance community resilience.

Debra J. Davidson · International Journal of Sociology of Agriculture and Food · Global

This study assessed the multiple emergent effects of urban agriculture activities through an extensive, interdisciplinary literature review to discuss its disruptive potential. It suggests that producing food in cities is not inherently transformative in itself, but the potential and observed new forms of social engagement emerging in many contexts can create institutional conditions that may disrupt conventional agri-food systems by building social capital as much as physical capital.

Martí Rufí-Salís, Felipe Parada, Verónica Arcas‐Pilz, Anna Petit‐Boix, Gara Villalba, Xavier Gabarrell · Frontiers in Plant Science · Spain (Barcelona)

This study investigated a closed-loop crop cascade system in a Barcelona rooftop greenhouse, using tomato leachates to irrigate five successive lettuce cycles. The results showed that low yields (below 130 g per lettuce plant) were obtained when the cascade system was used during the early stage of the donor crop, as the nutrient amount, especially nitrogen, was insufficient for the receiving lettuce crop. Additionally, electrical conductivity values became too high (near 3 dS/m) at the end of the donor crop cycle, indicating limitations in maintaining optimal conditions throughout.

Hayford Mensah Ayerakwa, Fred Mawunyo Dzanku, Daniel Bruce Sarpong · Agricultural and Food Economics · Ghana

Using a sample of 2,004 households in a small and a medium-sized city in Ghana, this study examined urban households' participation in agriculture by disentangling it according to the geography of production — urban versus rural areas — and its implications for food security. The analysis found no evidence that participation in agriculture in general was related to the food security of urban households in this sample. However, urbanites who produced food in both urban and rural areas had better food security in the medium-sized city.

Dorothée Boccanfuso, Marie-Ève Yergeau · Cahiers de recherche · Africa

This study presents a diagnostic assessment of the urban and peri-urban agriculture (AUP) sector in Mali, based on a literature review and individual interviews with stakeholders in Bamako, forming the first stage of a research project intended to measure AUP's impact on poverty and food security. The literature review found that few studies measure AUP's impact, that existing results are mixed and inconsistent, and that there is a lack of solid evidence on the topic. The Bamako interviews surfaced the sector's economic, social, and environmental issues in the Malian context and confirmed, from key stakeholders, the relevance and necessity of the planned research project.

Giuseppe Pulighe, Flavio Lupia · Sustainability · Italy (Milan)

A spatiotemporal quantification of urban agriculture in Milan, Italy, assessed its food self-provisioning potential using Google Earth images from 2007 and 2014. The study found that even in the best-case scenario, the current urban agriculture production (98 ha of vegetable gardens, 2539 ha of arable land) is insufficient to meet the vegetable and cereal consumption needs of over 1.3 million city residents. It could only satisfy approximately 63,700 vegetable consumers and 321,000 cereal consumers.

Navin Ramankutty, Vincent Ricciardi, Zia Mehrabi, Verena Seufert · Agricultural Economics · Global

A review was conducted on the production, environmental, and socioeconomic performance of three alternative farming systems: organic, smallholder, and urban agriculture. Organic agriculture offers environmental, livelihood, health, and nutritional benefits but is hampered by lower yields and higher prices. Smaller farms exhibit higher yields and biodiversity but result in lower incomes for farmers. Urban agriculture can alleviate pressure on rural landscapes, provide nutritional benefits to the urban poor, and engage urban dwellers in food system challenges, but it cannot scale up to be a substantial solution on its own.

Héctor Ávila Sánchez · Investigaciones Geográficas Boletín del Instituto de Geografía · Global

This study analyzed the impact and potential of Urban and Peri-urban Agriculture (UPA) on urban food systems, focusing on cities in Western Europe, North America, and Latin America. It concluded that while UPA practices have increased, their presence in urban food systems remains limited, and their consideration in territorial public policies is still marginal. In developed countries, its impact has been primarily therapeutic, landscape-related, and for heritage preservation, while in poorer countries, it has contributed to self-sufficiency for low-income urban populations, public space recovery, social fabric strengthening, and community development.

Julian Cribb · Cambridge University Press eBooks · Global

This paper points out that none of the world's megacities can feed themselves, and food chain risks pose an imminent threat of starvation. It presents concepts such as climate-proof food supplies, novel urban food production systems, the importance of urban permaculture, rewilding, and developing wise consumers as solutions to urban food risk. However, it does not explicitly state that these solutions fully resolve the issue of urban food self-sufficiency.

Kimisato Oda, Christoph Rupprecht, Kazuaki Tsuchiya, Steven R. McGreevy · Sustainability · Japan (Kyoto)

A study in Kyoto City, Japan, examined agricultural land use from 2007–2017 to assess urban agriculture as a sustainability strategy for shrinking cities. Analysis revealed a 10% decline (209 ha) in agricultural land use over ten years, with main post-agricultural uses being residential (40%) and vacant land (28%). The findings indicate that Kyoto City is not currently positioned to benefit from population decline through localized food production.

Gabrielle Roesch‐McNally, Jacqueline Ann Nester, Andrea Basche, Eric Christianson, Emily Zimmerman · Lincoln (University of Nebraska) · United States (Iowa)

Story County, Iowa, despite being in a highly agriculturally productive state, faces significant food insecurity. In 2014, 15.2% of its residents (nearly 14,000 individuals) were food insecure, with 45% of them not qualifying for government assistance. The county dedicates only 2.4 acres of cropland per thousand residents to fruit, vegetable, and nut production, significantly lower than the US average of 32 acres, highlighting a paradox of hunger amidst agricultural abundance.

Shannon Donovan · Case Studies in the Environment · United States (Anchorage)

A multi-faceted needs assessment, including a community survey, stakeholder workshop, and key informant interviews, was conducted in Anchorage, Alaska, to explore the strategic expansion of its community garden system. The study found that demand for community gardens far outweighs supply. To sustainably meet diverse needs, expansion efforts should focus on accessible locations, gardener capacity building, and strengthening partnerships.

Walter W. Furness, Courtney M. Gallaher · Local Environment · United States (Rockford)

A study in Rockford, Illinois, examined community gardens to assess their contribution to residents' access to fresh produce and other social benefits. Data was collected through interviews with gardeners, focus groups, and surveys of food pantry users. The findings indicate that while non-gardening community members benefit from increased produce provided by the gardens, they do not receive all the social and communal benefits associated with active garden participation.

Jane Battersby, Vanessa Watson · Figshare · Africa

Recent research in African cities indicates that urban agriculture is not as important a food source for low-income households as often believed. Most African urbanites source their food from retail outlets, suggesting that solutions to urban food insecurity need to consider urban food marketing and distribution structures, rather than solely supporting food production through urban agriculture. This chapter reviews evidence supporting the argument that urban agriculture is not a primary food source for the poor.

ADERINSOLA M. AREGBESOLA · · Nigeria (Ondo State)

A study in Ondo State, Nigeria, examined food security among peri-urban farming households using descriptive statistics, a food security index, logistic regression, and the coping strategy use index. It found that 54.4% of households were food insecure, with a 62% calorie deficit for these households, while 45.6% were food secure, exceeding calorie requirements by 48%. Household income positively affected food security, while household size had a negative effect.

St Clair, Rebecca, Hardman, Michael, Adams, David, Armitage, Richard, Barry, Veronica, Larkham, Peter, Sherriff, Graeme · Research Explorer (The University of Manchester) · United Kingdom

This paper reviews the diversity of urban agriculture (UA) activities in England, from small-scale guerrilla gardening to large community projects. It suggests that UA is under-theorized, with previous research focusing on practicalities and activism. The paper highlights UA's problematic contribution to food production and warns of the 'local trap'.

Jenny Smart, David Tschirley, Francis Smart, Smart, Jenny Cairns, Tschirley, David, Smart, Francis · AgEcon Search (University of Minnesota, USA) · Mozambique

Food system transformation and changes in diet quality were assessed in Mozambique amidst rapid urbanization and income growth. Rising incomes and processed food consumption were found to be associated with a worsening of negative dietary factors. Furthermore, urbanization, controlling for income, was more strongly associated with a worsening of negative factors than an improvement in positive dietary factors. However, owning one's own farm had a positive and significant effect on nutrition for urban households, primarily driven by reduced purchases of unhealthy foods.