Research & reports

Grace Ning Yuan, Gian Powell B. Marquez, Haoran Deng, Anastasiia Iu, Melisa Fabella, Reginald B. Salonga, Fitrio Ashardiono, Joyce A. Cartagena · Heliyon · Global

This review examined urban agriculture (UA) across technology, socio-economy, and policy, noting that supporting UA expansion in cities is challenging due to its poor economic profitability. The study highlighted UA's value beyond profitability, including social, health and well-being, disaster risk reduction, and environmental benefits. It also presented advancements in UA technologies and plant biotechnology as potential solutions for increasing the future profitability of commercial UA.

Yujia Zhang, Jordan P. Smith, Daoqin Tong, B. L. Turner · Landscape and Urban Planning · United States (Phoenix)

A model was developed to optimize the co-benefits of food desert and urban heat mitigation through community garden planning, applied to over 5,000 vacant parcels in the Phoenix metro-area, USA. The study found that the optimal number and locations of community gardens needed for different mitigation goals can vary significantly. The existing 76 community gardens were mostly clustered around urban cores, leaving two-thirds of the metro-area underserved, but spatially optimized siting could double the co-benefits gained and cover more high-need neighborhoods.

Marc François Richter, Luiza Vigne Bennedetti, Bruna Raquel Rodrigues Teixeira, Maico Ismael Klein, Angélica Gomes Florczak dos Santos · Confins · Brazil

This study mapped the concepts and benefits of urban gardens globally and in Brazil, presenting the history of urban agriculture and its modalities. A systematic literature review via Portal periódicos da CAPES corroborated various social, environmental, and economic advantages. In recent decades, Brazil has implemented federal, state, and municipal policies to support community garden projects, aiming to reduce poverty and ensure food security.

Marianella Herrera‐Cuenca · Anales Venezolanos de Nutrición · Venezuela (Caracas)

This study investigated preferred foods and dishes, willingness to grow ingredients, and ideal cooking choices among 18 pregnant and lactating women and community workers in low-income settings in Eastern Caracas, Venezuela, in June 2022. Focus group interviews revealed that traditional Venezuelan complex dishes were absent, replaced by basic or internationally referenced foods accessible to the community. The findings suggest a potential compromise to the culinary memories of future generations.

Donald Gray · DOAJ (DOAJ: Directory of Open Access Journals) · Global

A 2022 paper examined the role of school gardens in addressing children and young people's decreasing experiences with natural environments, increasing mental health concerns, and growing worries about global environmental problems. Drawing on three initiatives from an original pilot school garden program, the paper presents evidence that garden-based learning can positively contribute to improved health and wellbeing, learning, and environmental awareness.

Elisa Appolloni, Giorgio Gianquinto · Frontiers for Young Minds · Global

Rooftop agriculture, a form of urban agriculture where food is grown on buildings, is presented as a solution to urban food insecurity and environmental protection. This practice offers benefits such as reducing urban heat, decreasing urban poverty, fostering socialization, and benefiting buildings. Rooftop agriculture is gaining global popularity due to these advantages.

Janet Music, Lisa Mullins, Sylvain Charlebois, Charlotte Large, Kydra Mayhew · Humanities and Social Sciences Communications · Canada

This study compared 19 municipal urban home food gardening programs in Canada in 2020, which provided free gardening supplies and instructions. It found a complicated relationship between municipalities, gardening programs, and food security, and determined that gardening somewhat alleviated social and emotional challenges from the COVID-19 pandemic. However, municipalities are limited in their policy capacities to adequately address food insecurity in Canada.

Saria Lofton, Marjorie Kersten, Nanyombi Lubimbi, Angela Odoms‐Young · Journal of Community Practice · United States

This study used Chaskin’s relational framework to describe community capacity-building efforts to enhance urban agriculture in predominantly Black communities. Strategies identified for community capacity building in urban agriculture included building on existing resources, community engagement, expanding organizational capacity, identifying threats, and identifying ideal solutions. These strategies were identified by urban farmers, gardeners, and advocates to strengthen local control of the food environment through sustainable urban agriculture.

Melissa Anna Murphy, Peter E. Parker, Margot Hermus · Local Environment · Global

This article aims to unpack how urban settings, organizational forms, and municipal enabling affect urban gardening (UG) practices towards inclusion in public space. It draws on urban commons theory and research on inclusion in public space to understand multi-faceted UG governance and its exclusionary aspects. A comparative analysis of UG initiatives in three Northern European municipalities explores both municipal enabling and the co-production of inclusive public space.

Alejandro Castillo Nolte, Sascha Buchholz, Nadja Pernat, Monika Egerer · Frontiers in Sustainable Food Systems · Global

This study investigated diurnal and nocturnal temperature ranges, and daily maximum and minimum temperatures in 18 urban gardens during the peak summer agricultural growing season. It analyzed how temperatures correlated to local land cover factors within the garden, surrounding landscape imperviousness at various spatial scales, and environmental justice indicators of garden neighborhoods. Nocturnal temperature range was negatively correlated to landscape imperviousness, with the relationship decreasing in strength with increasing spatial scale.

Sani Abubakar Mashi, Samuel Yakubu, Sofia Yuniar Sani · Asian Research Journal of Agriculture · Africa

A study in the Kubanni basin of Zaria, Africa, evaluated the quality of wastewater used for irrigating urban agriculture soils. The wastewater contained arsenic, iron, chromium, copper, zinc, manganese, and lead. Although concentrations were generally below Nigeria's permissible limits for irrigation, the study noted the metals' tendency to accumulate in soils, raising concerns about potential heavy metal buildup in irrigated soils and crops.

厚 板谷, 大輔 野上, 公文 佐藤 · Institutional Repositories DataBase (IRDB) · Japan (Asahikawa)

This study, involving 20 preschool children from one kindergarten in Asahikawa city, Japan, examined how diversifying snow surfaces in a school garden affected physical activity intensity during winter outdoor play. Five trials were conducted in December and January-February. Activity intensity in snowy mountains was more prominent in the December control trial (less snow) than in the January-February experimental trials, but various play promotions increased activity in rough snow.

Myeong Suck Jeong, Mina Lee, Chaw Su Lwin, Kwon-Rae Kim · 한국토양비료학회지 · South Korea

This study investigated heavy metal contamination in urban agricultural soils near railway tracks and an industrial complex in Jinju, South Korea, to ensure food safety. While the average heavy metal values did not exceed soil contamination guidelines, some individual soil samples showed concentrations higher than the guidelines. Furthermore, the geoaccumulation index (Igeo) indicated that several soils were contaminated compared to background levels, with Cu, Pb, Zn, and Sb showing the highest contamination. Long-term monitoring of urban vegetable garden soils is recommended.

Jonathan Hobson, Brian K. Payne, Kabba Haroun Bangura, Richard Hester · Contemporary Justice Review · Sierra Leone

This paper examines the concept of "spaces" where restorative services develop, conceptualized as social, political, physical, and economic. In Kenema City, Sierra Leone, an urban agriculture scheme fills a post-conflict and post-Ebola "space" by diverting young people from harmful activities and reintegrating them into society. This is presented as one of three international case studies illustrating how these types of "spaces" influence the development, provision, and expansion capacities of restorative services.

Julie Cornfield, Harmonii Odinga, Jaleh Kermani, Katherine P. Theall, M. Pia Chaparro · American Journal of Health Promotion · United States (New Orleans)

An environmental assessment of 10 community gardens and interviews with 20 community members and administrators in New Orleans, Louisiana, explored factors affecting garden use. Gardens scored high in design and cleanliness but low in accessibility and information availability. While community members perceived gardens could increase fresh food access, administrators believed gardens could not produce enough food for community-wide impact, emphasizing social benefits instead.

Claudia Ortega Realpe, Edna Katalina Medina, Óscar Fernández · Boletín Epidemiológico Distrital - Bed · Colombia

Bogotá's District Health Secretariat implemented agroecological urban gardens from January to September 2021 to address COVID-19's social impacts. The community environment showed the highest healthy and sustainable food production, with Sumapaz, Usme, and Ciudad Bolívar having the largest planted areas. Vegetables and greens were the most relevant crops, while medicinal and aromatic plants were common in home gardens. The community showed good reception and acceptance, contributing to food security and environmental health.

Sarah Elton, Donald C. Cole · Food Culture & Society · Canada (Toronto)

This paper analyzes mixed methods data from Toronto, Canada, generated pre-pandemic, to understand the role of urban agriculture in gardeners' lives. It found that gardening supported health and wellbeing and provided an important, often culturally significant, food source for participants. The study argues that gardens are essential and should be viewed as part of culinary infrastructure, prompting policy decisions that support nonmarket food sources during crises.

Pénélope Duval, Claire Valiente Moro, Christina Aschan-Leygonie · Parasites & Vectors · France

A KAP survey conducted in community gardens in France showed that attitudes, more than knowledge, influence community gardeners' protective practices against the Asian tiger mosquito. All participating gardeners were concerned about the Asian tiger mosquito and motivated to incorporate control methods, but perceived mosquitoes as nuisances rather than disease vector species. This survey reveals a lack of knowledge and awareness of good practices for efficient control of the Asian tiger mosquito in green urban areas.

Claudia Marcela Puerto Layton · Interdisciplinary Journal of Environmental and Science Education · Colombia

This article reports the systematization of an experience with home/school gardens in an educational institution in Bogotá, involving high school students (seventh and eighth grades) in face-to-face and remote modalities. Results include the reconstruction of the strategy and didactic process, highlighting aspects that affect or support the educational process in each modality. Reflections with students indicated that while home gardens can contribute to food security, pesticides can pose a risk to food security in Colombia.

Tomasz B. Falkowski, Bethany Jorgensen, Donald A. Rakow, Ashmita Das, Stewart A.W. Diemont, Theresa Selfa, Austin B. Arrington · Frontiers in Sustainable Food Systems · United States

A study in four New York cities analyzed the benefits and challenges of community gardens during the COVID-19 pandemic through surveys and semi-structured interviews with community gardeners. Gardeners experienced benefits such as connection, mental and physical well-being, and a safe refuge, but the biggest challenge was limited socializing due to personal behavioral changes and garden rules. This research suggests that while community gardens can be resilient sites of reprieve during crises, the pandemic also exposed their vulnerabilities.

Sofia Kourmpetli, Natalia Falagán, Charlotte A. Hardman, Lingxuan Liu, Bethan R. Mead, Lael Walsh, Jessica Davies · International Journal of Postharvest Technology and Innovation · Global

This perspective paper presents 'rurbanisation' as a strategy for a resilient food system, focusing on postharvest benefits of urban agriculture for sustainable supply chains, enhanced nutrition, and access to fresh food. It identifies challenges for upscaling urban agricultural systems, including the need for improved technologies, local infrastructure, and knowledge transfer to new farmers. The paper also highlights research gaps in postharvest quality and safety.

Rhys Furlong, Caroline Harvey, Fiona Holland, Jenny Hallam · NECTAR - Northampton Electronic Collection of Thesis and Research (University of Northampton) · United Kingdom (Nottingham)

Seven semi-structured interviews were conducted with allotment gardeners from low-income areas of Nottingham, UK, 12 months after they began their tenancy at St Ann's allotments. This interview data was used for an interpretative phenomenological analysis published in "Cities and Health." Due to ethical and commercial issues, the data underpinning this publication is not openly available.

Lucia Masón, Benedetta Zagni, Francesca Bacchin, Carlotta Frison, Sara Scrimin · International Journal of Environmental Research and Public Health · Global

This study investigated the effects of indoor (classroom) and outdoor (green school garden) environments on attentional processes in 42 third and fourth-grade children, considering emotion and physiological self-regulation (heart rate variability). Children were less distracted by negative emotional materials when presented with an outdoor background and showed greater selective and sustained attention in the green environment compared to the classroom. Sustained attention also varied in relation to physiological self-regulation, but only when performing the task indoors.

Mona Khalil, Carolyn Bolton‐Moore · Current Developments in Nutrition · United States

This study investigated whether a ten-week Garden Enhanced Nutrition Education (GENE) program increased skin carotenoid scores, a measure of vegetable consumption, in 30 diverse, low-income children aged 6–13 at two Boys and Girls Clubs of Greater Houston in fall 2021. While individual skin carotenoid scores increased in 43% of participants and group averages showed an upward trend, these changes were not statistically significant. Height and weight increased significantly, and 49.7 pounds of produce were harvested.

Maria Teresa Braga Bizarria, Marcela Palomino‐Schalscha, Polly Stupples · Geography Compass · Global

This paper reviews the multi-scalar transformative potential of community gardens for volunteers, informed by a feminist approach. It examines literature on gendered benefits and empowerment women experience in community gardens, individually and collectively. The paper also discusses how community gardens offer opportunities to raise awareness of oppression and envision social change, suggesting they can be conceptualized as feminist spaces.