Research & reports

· Land · Germany

Presents a national ecosystem-service indicator for Germany to assess and monitor local climate regulation provided by urban green infrastructure.

· Health Education Journal · Global

A study of the long-term effects of a school-based experiential nutrition education intervention that incorporates hands-on experiences such as farm visits and cooking workshops.

Gangamma R., Walia B., Minkoff-Zern L., Tor S. · Journal of Patient Experience · United States

A mixed-methods study examining the role of gardening in the mental health, food security, and economic well-being of resettled refugees.

Pancras T., van Bentum E., de Pagter L., van Hoef M., Hoogenboom R., Berendsen B., van Leeuwen S. · Chemosphere · Netherlands

Fruits and vegetables from allotments contaminated by atmospheric deposition from a fluorochemical plant contained PFASs such as PFOA and GenX, with the highest levels downwind and in brassicas, leafy and root vegetables.

Khute M., Sharma S., Patel K., Pandey P. · Analytical Sciences · India (Chhattisgarh)

Leafy vegetables grown in the polluted Ambagarh Chowki region accumulated high inorganic arsenic, with the arsenic hazard quotient exceeding the safe threshold of 1, indicating a consumption health risk.

· Discover Environment · Global (review)

A review documenting that urban roadside vegetables accumulate heavy metals such as lead and cadmium, arguing that health risks justify exclusion zones for cultivation away from high-traffic roads.

Faurat A., Azhayev G., Shupshibayev K., Akhmetov K., Boribay E., Abylkhassanov T. · International Journal of Environmental Research and Public Health · Kazakhstan (Pavlodar)

In the industrial city of Pavlodar, heavy metals migrated from snow into soil and crops in urban and rural gardens, and the study assessed cancer and non-cancer health risks from eating the potatoes and tomatoes grown there.

Yang et al. · GeoHealth · United States (Massachusetts)

Decadal study of Boston's municipal composting program. Lead concentrations consistently exceeded EPA soil benchmarks. Program halted in 2012. Highlights importance of compost safety for urban agriculture.

Boston University School of Public Health · Boston University School of Public Health · United States

Examines historical inequities in urban organic waste and composting access. Highlights disparities in low-income and communities of color. Advocates for equitable policy design and implementation.

Wendy Demark-Wahnefried, Robert A. Oster, Kerry P. Smith, Harleen Kaur, Andrew D. Frugé, W. Walker Cole, Julie L. Locher, Gabrielle B. Rocque, Maria Pisu, Jennifer R. Bail, Harvey Jay Cohen, Douglas R. Moellering, Cindy K. Blair · JAMA Network Open · United States (Alabama)

A randomized trial in Alabama, USA, assigned 381 older cancer survivors (mean age 69.8 years, 69.0% female) with suboptimal vegetable and fruit intake, physical activity or physical function to a one-year home vegetable gardening intervention (supplies plus mentoring by certified master gardeners) or to a waitlist. The primary outcome — a composite index of improvement in vegetable and fruit intake, moderate-to-vigorous physical activity and physical function — did not differ significantly (4.5% intervention vs 3.1% waitlist, P=.53), nor did vegetable and fruit intake between arms (mean difference 0.3 servings/day, P=.10). The intervention arm did show significant gains in physical performance (2-minute step test +6.0 steps; 30-second chair stand +0.8 repetitions), perceived health (+8.4 points on a 100-point scale) and gut microbiome alpha diversity. The COVID-19 pandemic significantly moderated effects, so the trial does not establish that gardening halts functional decline in older adults.

Emilia C. Zamora-Moncayo, Bernarda Herrera, June Larrieta, Aimée DuBois, Georgina Miguel Esponda · Qualitative Health Research · Ecuador

A participatory case study of Huertomanías, an urban garden initiative founded in Ecuador in 2015 that provides work, income and social inclusion to people with severe mental health problems. Twelve participants took part in cognitive mapping, a photovoice project and interviews. Thematic analysis identified four domains of impact within the garden — autonomy (financial and personal), interpersonal and environmental relations, mental health, and family dynamics — plus external factors (family support, public policy and healthcare services) that shape recovery. The context is that employment access for this group is largely disregarded in Ecuadorian policy planning because of labour-market discrimination. As a qualitative study with 12 participants, it does not measure symptom change or job retention.

Zhe Zhu, Faith Ka Shun Chan, Gang Li, Mengxia Xu, Meili Feng, Yong‐Guan Zhu · Soil & Environmental Health · China

This review examines urban agriculture in China, identifying three forms: small-scale, capital-intensive, and tourism-type, each with benefits and challenges shaped by local context and government policies. Despite benefits like improved community cohesion and environmental sustainability, urban agriculture in China faces significant limitations including land availability, capital shortage, market access, and insufficient governmental support. Strategies and four recommendations are proposed to address these challenges.

Xiaofan Tian, Ruifang Zhang, Zifan Wang, Xinna Kang, Zhixin Yang · Agriculture · Global

This systematic review analyzed Community-Supported Agriculture (CSA) literature from 1999 to 2023 to identify research themes and trends, corroborating Maslow’s hierarchy of needs theory. The review found a geographical expansion of CSA research from North America to Asia and Africa, and a societal shift from basic sustenance to a deeper understanding of nutrition and diet. Recent research emphasizes "environment" and "health and education," aligning with higher-level needs in Maslow's theory.

Yizhou Peng, Grigorieva Iya Yu · Ecological Indicators · China (Chengdu)

This study assessed heavy metal pollution in rural, urban-rural interface, and urban agricultural lands in Chengdu, China. It found varying degrees of heavy metal pollution across all areas, with arsenic (As) and cadmium (Cd) being the most severe pollutants. Concentrations of As and Cd in soil samples exceeded risk thresholds, and these elements showed high spatial variability, indicating significant anthropogenic influence. Pollution sources included livestock manure, natural sources, agricultural activities, and industrial activities in urban areas.

Roopika Sivaraman, Haritha Thulaseedharan Nair, Sharmila Krishnan, Perumal Siddhuraju · Soil and Sediment Contamination An International Journal · India (Coimbatore)

This study analyzed biocompost and water samples from four agricultural nurseries in semi-urban Coimbatore, India, for microplastic contamination using density separation and ATR-FTIR. While physicochemical properties met Indian standards, microplastic fragments (85%) and fibers (15%) were found in two biocompost samples (BC-B and BC-C), identifying PMMA, PP, and EVA polymers. No microplastics were detected in samples BC-A and BC-D, but the findings suggest semi-urban agricultural gardening may contribute to microplastic accumulation in terrestrial environments, potentially harming soil and plant health.

Sreejith Aravindakshan, Hage Aku, Michi Tani · · India

This study investigated factors inducing the emergence, sustenance, and sustainability of urban agriculture using primary data from urban farming households in Kerala and Arunachal Pradesh, India. The research indicates that urban agriculture has provided questionable environmental gains and has not significantly improved urban food security, especially among the poorer sections.

Karen Haas, Sharon P. Simson, Nancy C. Stevenson · · Global

Horticulture is a leisure pursuit for hundreds of thousands of older adults who enjoy tending flower and vegetable gardens or indoor plant collections. For an increasing number of older adults, gardening is an essential therapeutic activity that helps in maintaining health, aids in rehabilitation from chronic diseases and impairments, or slows the effects of dementia.

Beatriz Barbosa da Silva, Caroline Senatore, Manueli Monciozo Domingos, Jackline Freitas Brilhante de São José · Ensaios e Ciência C Biológicas Agrárias e da Saúde · Brazil (Vitória)

From March to May 2023, the microbiological quality of food and medicinal plants, soil, and irrigation water was evaluated in an urban garden at an educational institution in Vitória, Brazil. 16.6% (n=2) of the analyzed plants exceeded legal limits for total coliforms at 35ºC, and Salmonella spp. was detected in 41.6% (n=5) of plants. Salmonella spp. was also found in 80.0% (n=4) of soil samples, suggesting a potential source of plant contamination.

Wegayehu Fitawek · Edward Elgar Publishing eBooks · Global

This paper discusses the causal relationship between food security and education, noting that food insecurity in early childhood leads to malnutrition and poor cognitive development. Education contributes to food security through school gardens, feeding, and nutrition education. The impact of food insecurity on education is measured by school enrollment, attendance, academic performance, and child health and development.

Prajal Pradhan, Daya Raj Subedi, Kshitij Dahal, Yuanchao Hu, Prakriti Gurung, Sijal Pokharel, Sagar Kafle, Biplav Khatri, Sudeeksha Basyal, Monika Gurung, Aruna Joshi · Cell Reports Sustainability · Global

This systematic analysis of 1,450 urban agriculture publications examined its impacts on Sustainable Development Goals (SDGs). It found urban agriculture is linked to all SDGs, with 142 targets showing positive sentiments and 136 showing negative sentiments, with positive sentiments roughly double the negative. The study concludes that urban agriculture does not inherently contribute to sustainability, as its impacts depend on specific practices and require tackling identified hurdles.

Adrian J Hayes, Tulane Chiarletti, Stephanie Hares, Sarah Devereux, Stephanie Upton, Daniel McNamara, Sally Brookes · Therapeutic Communities The International Journal of Therapeutic Communities · United Kingdom (South West of England)

This paper reports on the development and running of Foundations Group, a pilot 2-hour nano-therapeutic community (TC) intervention. Conducted within the NHS on City Farm premises in the South West of England for 18 months (2021–2022), the group comprised 11 members, one peer, and three staff. The authors reflected on the TC approach of democratic work, non-expert stance, and using support and challenge to enhance self-agency and belongingness, detailing the group's structure.

Kamal Prasad Acharya, Kalpana Gyawali, Indra Raj Upadhyaya · Interdisciplinary Research in Education · Nepal

This article explores the contribution of garden-based activities to developing 21st-century skills in public schools in Nepal. Using participatory action research in three intervention schools, the study found that school gardening, involving flower and vegetable cultivation, enhances critical thinking, creativity, collaboration, and problem-solving skills. Students also viewed gardening as a valuable learning platform that encourages creative thinking, environmental sustainability, and lifelong learning competence.

Laura S. Tuominen, Heikki Helanterä, Patrik Karell, Lauri Rapeli, Timo Vuorisalo, Jon E. Brommer · npj Urban Sustainability · Finland (Turku)

This before-after study in Turku, Finland, examined the influence of the COVID-19 pandemic on urban box gardening from 2019 to 2021. While box gardening's importance for resilience increased and gardeners remained motivated, participants reported receiving fewer benefits from gardening during the pandemic. This suggests a negative influence of the pandemic on well-being, extending to urban gardening outcomes.

Beata Sirowy, Deni Ruggeri · ˜The œGeojournal library · Global

This chapter reflects on urban agriculture practices in public spaces, emphasizing their unique role in the individual and communal well-being of city dwellers. It concludes with a brief reflection on the future trajectories for urban agriculture practices in compact cities.

Pierric Calenge, Maie Gérardot · Métropolitiques · United States (Cleveland)

The work by Max Rousseau and Vincent Béal illuminates the ambiguities of a policy that organizes urban decline and racial segregation in Cleveland. This policy promotes urban degrowth and racial segregation, balancing algorithmic management and urban greening. The study focuses on the Rust Belt region, which experiences de-urbanization marked by the subprime crisis, racism, and segregation.