Research & reports

Neven Tandarić, Charles Watkins, Christopher D. Ives · Urban forestry & urban greening · Europe

Interviewing users of community and allotment gardens in Zagreb, Croatia, this study explored motivations for gardening and how different forms of garden management shape the generation of cultural ecosystem services (CES), supplementing and contextualizing responses with interviews of urban planners, academics, and gardening activists. Using the Fish et al. (2016) framework to identify CES in interviews, the study grouped gardeners' motivations into six categories: escape, usefulness and tradition, home-grown produce, socializing, wellness, and private oasis. Food production was found to be only of secondary importance as a motivator of urban gardening.

Indiyah Murwani, Siti Muslikah, Siti Asmaniyah Mardiyani · Cendekia Jurnal Pengabdian Masyarakat · Indonesia

A community service program in RW VI, Jatimulyo sub-district, Malang, Indonesia, aimed to make productive, economic use of yards that had been largely unused for planting, by improving housewives' knowledge and skills in organic vegetable cultivation to strengthen local food security. Structured in introduction, implementation and evaluation phases, the urban farming training received a positive and enthusiastic response from local residents, who reported benefits to health, psychological well-being and household economy, described vegetable growing as easy, enjoyable, healthy and cost-reducing, and noted the area had become greener than before.

María Martíncrespo-Blanco, David Varillas‐Delgado, Saray Blanco-Abril, María‐Gema Cid‐Expósito, Juana Robledo‐Martín · Nutrients · Global

In a randomised, parallel-group controlled trial of children aged 3–5, this study evaluated the medium-term effect of an intervention programme on adherence to the Mediterranean diet. The experimental group took part in a school garden, while the control group received the usual lessons on the human body and health; adherence was assessed with the KIDMED questionnaire, controlling for weight, height, BMI, and socio-demographic variables. BMI was reduced in the experimental group after one year and at the end of follow-up. For the overall KIDMED score, a statistical trend between the two groups was observed but did not reach significance (p = 0.076). In multivariate analysis, eating pulses more than once a week predicted improved diet quality, with an odds ratio of 1.382 in the experimental group (95% CI 1.126–1.695; p = 0.009). The study concludes that the intervention improved participants' diet quality via increased consumption of plant-based protein.

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.

Lucia Masón, Lucia Manzione, Angelica Ronconi, Francesca Pazzaglia · International Journal of Environmental Research and Public Health · Europe

A within-subjects study of 65 second- and third-grade students in Europe compared a single regular lesson taught in a green school garden with a similar lesson taught in the classroom. Cognitive measures were selective and sustained attention and math calculation performance; affective measures were positive/negative mood and perceived environmental restorativeness. After the green-space lesson, children showed greater selective attention and better math calculation performance on two tasks than after the classroom lesson. Children with higher self-reported emotional difficulties showed a larger increase in selective attention, a statistically significant increase in positive affect, and a near-significant decrease in negative affect. Students also rated the green space as more restorative than the classroom.

Christopher Young, Nicole Bauer · Urban forestry & urban greening · Europe

This mixed-methods study examined the experience and effects of allotment garden loss among gardeners in Zurich, Switzerland, using field conversations with gardeners from an area slated for clearance and a natural experiment surveying the same gardener population before (2018) and after (2019) the clearance to measure effects on social networks, social support, and general and mental health. Qualitative analysis showed the (imminent) loss of the garden was a distressing experience for most participants, corroborated by descriptive survey results; ANCOVA models of the quantitative data supported a negative effect of garden loss on the number of social contacts and on emotional well-being, but not on other factors measured.

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.

Yue Jin, Hee Sun Choi, Daniel C. Elkin · · China

A mixed-methods study of three representative communities in Nanjing, China, examining the value of edible community gardens against the backdrop of COVID-19, associated government area controls, restricted access to daily food supplies, and elderly residents' unfamiliarity with online shopping. The study used GIS mapping of Nanjing's food system, site observations, questionnaires and interviews, analyzed with univariate and multivariate methods. It found that most elderly residents want and value edible community gardens, especially during the epidemic; that the gardens offer opportunities for new companionship and leisure; and that edible landscaping increases communities' ornamental value and interactivity. The gardens were also described as beneficial for sustainable food production in terms of ecological environment, economic benefit, social regeneration and local development.

Son Truong, Tonia Gray, Kumara Ward · Urban forestry & urban greening · Australia

A study examining the Community Greening program run by the Royal Botanic Garden Sydney, Australia, for the past two decades, at six new community gardens built in social housing communities in New South Wales. It used focus group interviews with residents and questionnaires with program staff. Participant narratives showed the gardens function as sites for knowledge generation and connection to nature, for building a sense of community, and for improving residents' sense of pride and public perceptions of public housing. The findings suggest community gardens enhance green infrastructure and support place-making in social housing estates and their surrounding areas, and the study concludes with recommendations for policies and practices addressing social and environmental sustainability priorities in social housing.

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.

Ghozlane Fleury‐Bahi, Jean‐Michel Galharret, Colin Lemèe, Inga Wittenberg, Pablo Olivos, Ana Loureiro, Yvette Jeuken, Pauline Laïlle, Óscar Navarro · Applied Psychology Health and Well-Being · Europe

A survey of 1,343 residents across seven European cities, combined with satellite-imagery indicators of the objective quantity of urban natural space, examined how the amount and perception of nearby nature relate to well-being, moderated by respondents' connectedness to nature. Regression models linked well-being to perceived amount of nature, accessibility to a community garden, and level of connectedness to nature, and found perception of nature to be a better predictor of well-being than the objective satellite-based measure; connectedness to nature had a moderating and negative effect on the association between perceived quantity of nature and well-being, meaning the link between perceived nature and well-being weakened as connectedness to nature increased.

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.

Silvia Septhiani, Diah Oga Nusantari, Ihwan Zulkarnain · PUNDIMAS Publikasi Kegiatan Abdimas · Indonesia

This report describes a community-service activity in Harapan Jaya, Cibinong District, Bogor Regency, Indonesia, aimed at improving residents' productivity and health during the COVID-19 pandemic. With the pandemic producing a lack of productive at-home leisure activity and a sense of stagnation among residents, urban farming is positioned as one pandemic-era activity offering economic, health, and environmental benefits, covering food crops, medicinal plants ("living pharmacy"/apotik hidup), and ornamental plants. The team provided residents of Harapan Jaya with information on family medicinal plants (TOGA). The activity is described as increasing residents' understanding of medicinal plants and fostering productive attitudes and a healthy, green environment.

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.

· Egyptian Journal of Applied Science · Egypt

This experiment, conducted at the Central Laboratory for Agricultural Climate, Agricultural Research Center, Dokki, Giza, Egypt, evaluated eggplant yield and quality in urban substrate culture using three fertilizing sources (nutrient solution, mineral fertilizer, vermi-liquid) combined with two pot volumes (6 and 8 liters of a standard 50:50 peat moss:perlite substrate) across two summer seasons (2019 and 2020). Total fruit number and leaf count were recorded during harvest, along with fruit diameter, length, average fruit weight, and fruit nitrogen, phosphorus, and potassium content. Chemical nutrient solution produced the highest vegetative growth and yield characteristics, while vermi-liquid produced the lowest; nutrient solution and mineral fertilizer increased fruit N, P, and K content compared with vermi-liquid. Increasing pot volume from 6 to 8 L increased vegetative growth, yield, and N-P-K content. The highest growth, yield, and nutrient content came from chemical nutrient solution combined with 8 L pots, while vermi-liquid with 6 L pots was framed as a more sustainable and economical urban horticulture option for supporting food security during the Covid-19 epidemic.

Ningombam Sushma Devi, Preeti Hatibarua, Ningombam Bijaya Devi, Tadar Jamja, Nangki Tagi, Ruthy Tabing · Ecology Environment and Conservation · Global

This review argues that, amid exponential population growth, expanding urban dwellings, climate change, and limited natural resources, planting fruit and vegetable home gardens and using rooftops and small plots for small-scale vegetable production can provide households with sufficient production and income generation. It states that meeting the food and nutritional needs of growing urban populations requires integrating information-technology tools, breeding crops suited to urban farming, and closing water, waste, and energy loops, and it outlines the significant features of contemporary urban horticulture alongside the traditional practices, technologies, and innovations that support it.

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.

Annie-Pier Mercier, Gabrielle Rochefort, Julie Fortier, Geneviève J. Parent, Véronique Provencher, Simone Lemieux, Benoı̂t Lamarche · Current Developments in Nutrition · Canada

A short questionnaire measuring local food procurement behavior, the Locavore-Index Short Form (Locavore-I-SF), was developed and validated among 299 French-speaking adults (85% women) in the Quebec City metropolitan area, Canada. The 12-item, 12-point instrument covering short food supply chain use and geographic origin of carrot, tomato and lettuce showed high internal consistency (Cronbach's alpha 0.74), correlated strongly with the original Locavore-Index (r=0.84, P<0.0001) and with photo-verified food origin (r=0.50, P<0.0001), and was higher among gardeners than non-gardeners (mean difference 2.3±0.4 points, P<0.0001); its association with the Healthy Eating Food Index-2019 score was weak (B=0.05±0.02, P=0.02).

Suzanne Spence, Grace Gardner, Dorota Zarnowiecki, Katie Adolphus, Clare Lawton, Louise Dye, Emma Patterson, Charlotte Evans · · Global

This chapter reviews school-based food policies in England and elsewhere aimed at improving children's diets and reducing childhood obesity, noting that reintroduced school meal standards across the UK have improved the quality of school-provided meals, whereas fewer policies exist for packed lunches, which consequently remain of lower quality than school meals. It also discusses the wider school food environment, including school gardens and programs to increase children's fruit and vegetable consumption, as opportunities to improve children's diets.

W. Wang, J.A. Garner, G.A. Marshall, M. Sitaker, E.H. Belarmino, A.S. Ammerman, S.B. Jilcott Pitts, R.A. Seguin-Fowler, J. Kolodinsky, K.L. Hanson · UNC Libraries · United States

The Farm Fresh Foods for Healthy Kids (F3HK) randomized controlled trial, conducted in New York, North Carolina, Vermont, and Washington from 2016 to 2018, assigned 305 caregiver-child dyads to a cost-offset (half-price) community supported agriculture (CSA) share plus tailored nutrition education, or to a delayed-intervention control group. After one growing season, no significant net effects were observed on children's dietary intake, BMI, or physical activity. Caregivers, however, showed statistically significant net improvements in cooking attitudes, skills, and self-efficacy, fruit and vegetable intake and skin carotenoid levels, and household food security. Improvements in attitudes and self-efficacy persisted at one-year follow-up, but improvements in caregiver diet and household food security did not. The number of weeks a household picked up its CSA share — not the number of education sessions attended — was associated with improvements in caregiver fruit and vegetable intake and household food security. The study concludes that cost-offset CSA plus nutrition education improved caregiver and household outcomes within one season but had no effect on children, and some improvements were not maintained after the CSA season ended.

Kingsley, Jonathan, Diekmann, Lucy, Egerer, Monika H., Lin, Brenda B., Ossola, Alessandro, Marsh, Pauline · Health & Place · Global

This Health & Place study analyzes survey responses from 3,743 gardeners collected internationally (including Australia, the USA, and Germany) between May and August 2020, examining gardening experiences during the early COVID-19 pandemic. It found gardens became safe spaces for social connection amid increased free time from lockdowns, while participants faced shortages of seeds and supplies and restricted access to shared garden spaces.