Research & reports

K.L. Hanson, W. Wang, J. McGuirt, A. Ammerman, M.M. Severs, E.H. Morgan, S.B.J. Pitts, R.A. Seguin, F. Becot, M. Sitaker, J. Kolodinsky · UNC Libraries · United States

Semi-structured interviews with 20 CSA (community-supported agriculture) members and 24 CSA farmers across four US states, plus a modified choice experiment completed by members, examined the product, place, price and promotion (4P) factors behind member satisfaction and farm competitiveness in 2022. Both members and farmers were driven by personal, social, environmental and economic motivations. Members favored high-quality staple vegetables such as lettuce and green beans, ideally organically grown, and valued trust and personal connection with the farmer as an added benefit of CSA participation. Pick-up time and location mattered greatly, prompting farmers to offer convenient sites or enriched pick-up experiences. Small price changes appeared unlikely to affect participation among current members. Social networks and word-of-mouth were effective for marketing but may limit farms' ability to reach more diverse populations.

Julian Hasford, Sheldon Caruana · Canadian Journal of Children s Rights / Revue canadienne des droits des enfants · Canada

A reflective piece on the experience of mobilizing Black youth in food sovereignty activism during the COVID-19 pandemic. Authors who were part of the project's leadership team present personal narratives describing the process of establishing a Black youth-led farm project in southern Ontario, Canada, and reflect on lessons learned, including challenges of engaging in youth-led projects within the constraints of virtual spaces.

Ezra Spira-Cohen · The Latin Americanist · Brazil

Using Brazil's Council on Food and Nutritional Security (Consea) as a case, this study examines how participatory institutions affect policy implementation. In Rio de Janeiro, a coalition of civil society actors mobilized around urban agriculture through the Municipal Consea, reframing and reinterpreting national directives originally oriented toward rural family farming, which resulted in the expansion and implementation of these programs and altered the relationship between urban farmers and institutional actors. Drawing on fieldwork conducted in 2015-2016 consisting of interviews and participatory observation, the research analyzes the role of this local participatory institution in fostering civil society collaboration, state-society relations, and institutional change.

Judy Orton · Digital Archive @ GSU · United States

Two studies examined ecology-centered experiences — experiences with living things — among children and adolescents in the United States. Study 1 was a yearlong ethnographic study at an urban community garden in a large city in the southeastern United States, finding through participant observation and informal interviews with staff and participants that children had opportunities to learn about ecology through such experiences. Study 2 found that ecological thought — a pattern of thinking that privileges relationships between living things — did not predict environmental attitudes and behaviors, and that while ecology-centered experiences alone did predict environmental attitudes and behaviors, this predictive relationship disappeared once environmental responsibility support was taken into account.

Brandy Phipps, Brian Kowalkowski, Jeremy Wescott, McFadden Brandon, Craig Schluttenhofer, K. V. Nedunuri · Current Developments in Nutrition · United States

A study protocol for measuring the impact of a "farm-to-fork" program on food security and nutrition among the Menominee Nation, located on the Menominee Indian Reservation in Wisconsin, United States. A 2015 Community Food Assessment found 73% of respondents cited hunger as a concern, and the county ranks last in the state for both food security and health outcomes, while 65% of respondents expressed interest in growing their own food if assistance were available. The protocol plans four years of interventions including a new aquaponics facility and education programming at farmers' markets, using pre- and post-surveys plus county health data to measure production, self-efficacy and nutrient intake; it hypothesizes increases in production, self-efficacy and consumption of nutrient-dense foods, but results are not yet reported.

S. Alan Walters, Christina Gajewski, Amir Sadeghpour, John W. Groninger · Climate · United States

An experiment at Southern Illinois University-Carbondale, USA, evaluated culinary herb production on an extensive green roof (about 8 cm deep) under twice-weekly, weekly, and fortnightly watering (1 L per plant), testing perennial garlic chives, lavender, lemon balm, and winter thyme, plus annual basil. All perennial herbs produced more dry biomass and greater overwintering potential under the two more frequent watering schedules, and basil grew well with weekly watering, but weekly watering was required across all perennial herbs to achieve commercially viable growth, vigor, and overwinter survival.

Valéria Borges Yonegura, Henrique Manoel da Silva · Cadernos de Ciência & Tecnologia · Brazil (Curitiba)

A study of urban agriculture's effects in two neighborhoods of southern Curitiba, Paraná, Brazil - an area historically stigmatized for violence and poverty - that observed increases in quality of life, aesthetic improvement of the landscape, a greater sense of security and inclusion, and residents' topophilic attachment to place. Urban agriculture is used in the city's marketing, but the paper states that its continuity is partly threatened by the possible end of a partnership with the local electric utility and by real estate market pressure. Most results come from a master's thesis, with continued monitoring via media coverage and contact with community leaders.

Amrik Singh Khalsa, Jonathan Burton, Michael T. Bailey, Jiangjiang Zhu, Kelly J. Kelleher, Ross Maltz, Brett R. Loman, Colleen Spees · BMC Nutrition · United States

Non-invasive human biospecimens including stool, urine, and hair are important for understanding the relationship between diet and changes in human physiologic processes affecting chronic disease outcomes, but collection can be difficult for studies conducted away from a centralized location. This paper describes the protocol and feasibility of collecting stool, urine, and hair biospecimens from parents and children at a remote location, as part of the Summer Harvest Adventure (SHA) study, a randomized controlled, community garden-based intervention targeting children aged 8-11 and their parents from low-resource neighborhoods in the United States. Biospecimens were collected at baseline and post-intervention from willing children and parents in both intervention and control groups, for microbiome, metabolomics, and hair analyses, at a location distant from the academic laboratories conducting the analysis. Of 146 SHA participants (73 parent-child dyads) eligible to provide a biospecimen, 126 consented to hair, 115 to stool, and 127 to urine collection. Among those who consented, 44 children (69.8%) and 38 parents (60.3%) provided at least one hair sample; 27 children (48.2%) and 37 parents (62.7%) provided at least one stool sample; and 36 children (57.1%) and 42 parents (65.6%) provided at least one urine sample. Sample collection, transport, and handling at the academic center were successful, and all biospecimens collected were deemed adequate for analysis. DNA and metabolomics yield on a subset of stool samples showed an abundance of species and metabolites as predicted. Urine and hair analyses were described as still underway, with the study characterized as among the first to describe the feasibility of collecting these biospecimens from both parents and children in this remote setting.

Yuki Kato, Caroline Boules · Journal of Urban Affairs · United States

The disruption of social and food systems during the COVID-19 pandemic presented a distinct set of opportunities and challenges for urban agriculture. Based on 79 in-depth interviews with managers of community gardens, school gardens, and urban farms in the Washington, DC metropolitan area, this study used post-disaster "social recovery" theory to explore how each type of urban agriculture responded differently to the pandemic's social, economic, and personal disruptions. Findings showed significant differences in immediate impacts across the types of urban agriculture, with community gardens being the least affected and urban farms implementing the most variant adaptation strategies. Notable differences also appeared within each type, especially among urban farms. The study attributes these variant adaptation trajectories to pre-disaster conditions, including autonomy over cultivation space, access to resources, and connections with other facets of city life, concluding by underscoring the importance of recognizing the heterogeneity of urban agriculture when assessing its transformational capacity and potential.

Brandy‐Joe Milliron, Dane C. Ward, Janeway Granche, Janell L. Mensinger, Dahlia Stott, Claire Chenault, Franco Montalto, Eugenia Ellis · American Journal of Health Promotion · United States

A cross-sectional online survey of 317 adults aged 18 and older residing in Philadelphia, Pennsylvania, measured nature relatedness (NR) using a 21-item scale with self, experience and perspective subscales, dietary diversity using the FAO's standardized tool (scored 0-9), and fruit and vegetable intake using the NCI's 2-item CUP screener. Multivariable regression models adjusted for age, race, gender and income found that higher NR Total, NR Self, NR Perspective and NR Experience scores were associated with greater dietary diversity, and that higher NR Total, NR Self and NR Experience scores were associated with greater fruit and vegetable intake; these associations remained significant after adjusting for the covariates. NR was associated with better dietary intake even after accounting for sociodemographic factors.

Celeste M. Schultz, Alexander Rosen · The Journal of School Nursing · United States

A garden-based education program implemented in elementary, middle and high schools on Chicago's South and West Sides was examined for its effects on students. Implementing gardens was found to have a positive impact on the availability, access and consumption of fresh fruits and vegetables, as well as on students' social-emotional well-being. More rigorous studies controlling for socioeconomic status were identified as needed to establish the long-term effects on obesity prevention, mental health outcomes and economic benefits.

Michelle Tokunbo ‘Tok’ Oluwaseyi Oyewole · Capitalism Nature Socialism · United States (New York City)

Based on the perspectives of gardeners in public schools in Brooklyn, New York, a four-part framework of liberatory practices and potentials via school gardening is outlined, examining what liberatory practices occur in Brooklyn school gardens and their potential for building on them in relation to rectifying injustices faced by racially minoritized communities. Gardens were found to support personal achievement, health benefits, adult mentorship, peer bonding, identity affirmation, community transformation, and positive relationships with the natural world. Some programming addressed social and environmental injustices explicitly, but students and staff identified potential to expand this work, particularly through clearer curricular prioritization and social and material support.

Julia N. M. Campbell · Digital Archive @ GSU · United States

This paper discusses how brownfield sites affect physical health (injury hazards, disease transmission, chemical exposure) and social health determinants such as neighborhood social capital, and argues that reusing brownfields as community gardens reduces environmental and associated health hazards while increasing nutrition access — especially for low-income populations — community aesthetics, social cohesion, and recreational or therapeutic opportunities. It states that special precautions are required to protect public health when converting a brownfield to a garden, including chemical sampling, soil cleanup, and protective garden design, and concludes that the community benefit is worth the initial investment required, without presenting site-specific measured outcomes.

Catherine E. Sanders, Don W. Edgar, Casandra Cox, Leslie D. Edgar · Journal of Human Sciences and Extension · United States

This study explored the social networks and interactions among urban producers in Arkansas, USA, through social network analysis. Using a mixed-methods approach, it collected data on participants' social network interactions and their methods of seeking information about urban farming. The results showed how and where participants preferred to obtain information, peer-to-peer interactions within the network, and key players or opinion leaders in the network. The methods used may serve as an example of network mapping for populations lacking a formal network, to help Extension outreach reach communities that may otherwise be underserved.

Osmar Manoel Nunes, Shirley Grazieli da Silva Nascimento, Mariana Rockenbach de Ávila, Luciellen de Lourdes Silveira Vieira, Criziane Flores Pamplona · LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) · Brazil

This case study analyzes the socioeconomic conditions of two peri-urban family farms producing organic lettuce in Dom Pedrito, Rio Grande do Sul, Brazil — regarded as among the region's leading farmers — with gardens in the Rincão da Figura and São Gregório areas. Using case-study methods, researchers conducted in-depth interviews with the farmers and on-site visits, analyzing the data through Textual Discourse Analysis. Production relied exclusively on family labor with minimal use of chemical inputs, characterized as a transitional stage toward organic production; output was sold at the weekly Friday municipal market and supplied to three additional small stores in the city. The study concludes that, despite strong competition from large distribution networks, lettuce production and sale remained profitable, constituting an alternative source of income and job creation in family farming.

Abby M. Lohr, Melanie L. Bell, Kiera Coulter, Sallie A. Marston, Moses Thompson, Scott C. Carvajal, Ada M. Wilkinson‐Lee, Lynn B. Gerald, Josephine D. Korchmaros · Health Education & Behavior · United States (New York City)

This cross-sectional secondary analysis used evaluation data from a university-supported Community School Garden Program (CSGP) to examine, mostly among Latino/a (Hispanic) elementary students at Title I schools in New York City, United States, whether duration of school garden exposure (≤1 year versus >1 year) was associated with self-reported learning and school connectedness, using social cognitive theory as the analytic frame. Duration of school garden exposure showed no statistically significant association with self-reported learning or feelings of school connectedness. Regardless of past exposure, fifth-grade students, females, and those identifying as Latino/a (Hispanic) felt the garden program improved their learning; qualitative results indicated most students enjoyed time in the garden and felt the program helped them learn new things and feel connected to school.

Paulo Silvano Magno Fróes Júnior, Fabrício Khoury Rebello, Cyntia Meireles Martins, Maria Lúcia Bahia Lopes, Caio Cézar Ferreira de Souza, Joyce dos Santos Saraiva, João Paulo Borges de Loureiro, Antônia do Socorro Aleixo Barbosa, Geany Cleide Carvalho Martins, Janayna Galvão de Araújo, Marcos Antônio Souza dos Santos · Journal of Agricultural Studies · Brazil

This study characterized agricultural production systems under urban and peri-urban agriculture (UPA) in the Curuçambá neighborhood of the Metropolitan Region of Belém (RMB), Brazilian Amazon, identifying the main techniques, crops, and animals raised, and estimating production's contribution to family consumption on a complementary, exploratory basis. Data came from interviews with 63 residents (52.50% of the neighborhood's population), two weeks of food-consumption monitoring for six producer families, and georeferencing using Google Satellite imagery. Farmers came mainly from northeastern Pará (57.14%), with others from Maranhão (9.52%), Ceará (9.52%), and Paraíba (1.59%); urban agriculture in the region was established through the migration of rural residents to Amazonian cities. Most farmers had completed elementary school II (69.84%) and had an average monthly income of one to two minimum wages (50.79%). Agricultural production occurred in roughly 111 residences in the neighborhood, based on horticulture and small livestock keeping, across six production systems -- common beds (71.43%), suspended beds (12.70%), fruticulture (6.35%), agroforestry yards (3.17%), hydroponics (4.76%), and aquaponics (1.59%) -- directed toward supplying RMB markets. On average, 30.89% of farmers' income covered family consumption, and the opportunity cost of consumption for the five main crops grown (jambu, lettuce, coriander, chicory, and cariru) was estimated at R$79.88 monthly, 8.37% of the minimum wage at the time.

Daria Ponstingel · Socio-Ecological Practice Research · United States (Austin)

A 2022 study of community gardens in Austin, Texas, USA, examining the approaches used to govern them and the socio-ecological outcomes associated with each model. Using Ostrom's socio-ecological systems framework, the author combined key-informant interviews with garden managers (yielding both qualitative and quantitative data) with remote-sensing estimates of net primary productivity — a proxy for carbon sequestration — derived from ECOSTRESS imagery on the International Space Station and Planet Inc. data. Social outcomes were measured as gardeners' satisfaction and perceived success; ecological outcomes as green-space ecosystem services. The highest social and ecological performance was found in gardens with 'bottom-up' governance structures, where community members hold decision-making and management authority. The author argues the two kinds of outcome are codependent and that the governance approach determines the form that codependence takes. The study covers gardens in a single city, so generalisation elsewhere remains to be tested.

Congreso de la República del Perú · El Peruano, Normas Legales (Diario Oficial del Perú) · Peru

Peru's Congress passed Law No. 31458 on 26 April 2022, published the next day in the official gazette El Peruano (Normas Legales). The law legally recognizes ollas comunes (community soup kitchens) as temporary or permanent grassroots social organizations, guarantees their sustainability and financing during emergencies such as natural disasters or health emergencies, and promotes beneficiaries' productive work and entrepreneurship. It authorizes local governments and the Ministry of Development and Social Inclusion to reallocate budget to fund food procurement and distribution for ollas comunes, and requires the Ministry of Health to approve technical guidance on sanitary and nutritional conditions.

Ministerio de Desarrollo e Inclusión Social (MIDIS) · Ministerio de Desarrollo e Inclusión Social (MIDIS), Plataforma del Estado Peruano · Peru

Peru's Ministry of Development and Social Inclusion (MIDIS) reported on 6 May 2022 that, according to registration data in its Mankachay Perú ("Mi ollita Perú") information system, Lima Metropolitana had registered the most Temporary Citizen Food Support Initiatives (ICAAT, including ollas comunes) at 2,506, followed by Callao (242), La Libertad (101) and Arequipa (98). The system launched on 5 November 2021, with local governments entering data that citizens and officials can view in real time.

Instituto Escolhas · 100 Políticas (Instituto Escolhas) · Brazil

A case study of Belo Horizonte's urban agriculture policy. Under Municipal Law No. 10,255/2011, three types of production units — school-based, public-facility-based, and community-cooperative — operate a combined 182 units producing about 3.82 tons of food per month. The program's annual municipal budget is roughly R$2 million, of which R$1.5 million is allocated to the community-cooperative units.

Landry M., van den Berg A., Hoelscher D., Davis J. · Nutrients, 13(9):3081 (MDPI) · United States

A randomized controlled trial across 16 mostly Hispanic, low-income elementary schools in Texas evaluating the TX Sprouts intervention, which embedded gardening, cooking and nutrition lessons. Children in intervention schools significantly increased vegetable intake, showing that garden-centered food education can improve children's dietary quality.

Guzzon F., Arandia Rios L.W., Caviedes Cepeda G.M., Céspedes Polo M., Chavez Cabrera A., Muriel Figueroa J., Medina Hoyos A.E., Jara Calvo T.W., Molnar T.L., Narro León L.A. · Agronomy 11(1):172 · Latin America

Reviews the fundamental role of Latin American maize landraces for food security, livelihoods and culture, the threat of genetic erosion, and the current state of their conservation and use.

Rendón Schneir E. · e-Agronegocios, Vol. 7, No. 2 · Peru (Lima)

Analyzes short horticultural value chains (cadenas cortas) in Lima, showing that removing intermediaries improves farmer incomes and strengthens urban food security, particularly in the context of the COVID-19 pandemic.

Carola Grebitus · PLOS ONE · United States (Detroit)

Using an online survey of 420 residents in Detroit, Michigan, this study analyzed behavioral and socio-demographic drivers of growing produce at home and in community gardens. It found that trust, attitude, and knowledge affect home growing, while involvement and personality drive community gardening; household size affects home growing, and gender, age, and income affect community gardening. The findings offer implications for fostering small-scale urban agriculture through city planning and nutrition education.