Research & reports

George Danso, Lesley Hope, Pay Drechsel, Danso, G., Hope, L., Drechsel, Pay · AgEcon Search (University of Minnesota, USA) · Ghana

This chapter explored the financial and economic aspects of urban and peri-urban agriculture in Ghana. It conducted cost-benefit analysis comparisons of farm finances across common rural, peri-urban, and urban farming systems. Substudies also attempted to quantify societal benefits and cost externalities related to soil nutrient depletion, pesticide use, and urban malaria.

A. N. Mutune, M. A. Makobe, Mary Abukutsa‐Onyango · African Journal of Environmental Science and Technology · Kenya (Nairobi)

This study analyzed heavy metal content in 10 common African leafy vegetables and their rhizosphere soils from 25 sites along Nairobi Rivers, Kenya. While soil metal concentrations were generally within WHO/FAO permissible levels, except for some cadmium instances, all metals except copper in vegetables exceeded recommended limits at a few sites. This indicates potential heavy metal absorption from industrial and domestic effluent.

Myungil Jeong, EuSook Jea, Sang Mi Lee, BuYoung Yi · Journal of people, plants, and environment · Global

This study investigated the effect of a 15-week horticultural activity program using a four-season ornamental rooftop garden on the mental development and intelligence quotient (IQ) of 47 preschoolers (26 experimental, 21 control) from May to September 2013. Both groups showed significant improvement in mental development, with the experimental group showing greater improvement. While IQ also improved in both groups, the change was not statistically significant, possibly due to the study's duration.

Ulf Hackauf · Repository hosted by TU Delft Library (TU Delft) · Global

This paper explores urban pig farming as a specific form of urban and peri-urban agriculture (UPA). It uses a design-based research strategy, drawing on the 'City Pig' study (2009) from Delft University of Technology, to identify the potential benefits of urban pig farming and assess how un-built design projects can inform future real projects. A significant limitation is that the study concerns virtual, un-built design proposals.

Richard C. Sadler, Godwin Arku, Jason Gilliland · Local Environment · United States (Flint)

This study examined local food networks (LFNs) and a food policy council (FPC) in Flint, Michigan, a post-industrial city facing food access issues. Participant observation with stakeholders revealed support for community gardens, farmers' markets, and urban agriculture. Based on the synthesis of stakeholder opinions, policy recommendations were developed to aid in the continued planning of the LFN.

Heather Yeatman, Karen Quinsey, James Dawber, Wendy Nielsen, Deanne Condon‐Paoloni, Simon Eckermann, Darcy Morris, Pam Grootemaat, David L Fildes · Evaluation Journal of Australasia · Australia

An evaluation of a national kitchen garden program in Australian primary schools was conducted across 28 initiative and 14 comparison schools. The program achieved overall improvements in students' food choices (t=2.26, p=0.024) and kitchen lifestyle behaviours (t=2.35, p=0.019). Female students and those from provincial schools showed statistically greater improvements in food choices, with girls scoring higher than boys (t=6.19, p<0.001).

Bernadett Kis · Annals of Leisure Research · Hungary

Community-supported agriculture (CSA) is a relatively new concept in Hungary, with only five or six "share CSAs" established. This paper presents how the French variation of CSA (AMAP) was adopted in Szeged, Hungary, and how this vegetable community functions, along with its leisure and health impacts on the author. The author's CSA membership is interpreted from a health and leisure perspective, connecting it to health promotion and Blackshaw's 'liquid leisure' concept.

C. Bottenheft, Willeke van Staalduinen · TNO Repository · United States (New York City)

This study is a background research presenting examples of space in relation to healthy behavior, self-reliance, and social connections. It covers a scoping review process and addresses various topics including community gardens in New York, green buildings, neighborhood walkability, geographical access to tobacco and fast food, and social capital in walkable neighborhoods.

Mike Fillon · JNCI Journal of the National Cancer Institute · United States (Birmingham)

A feasibility study for "Harvest for Health," an at-home gardening intervention, was conducted in 2011 with 12 adult and child cancer survivors in Jefferson County, Alabama. This year-long pilot study measured how cancer survivors responded to the intervention, specifically its effects on their diet and exercise behaviors, health-related quality of life, biomarkers of successful aging, intestinal health, and physical functioning. Participants, supported by master gardeners, planned and planted three gardens for fall, spring, and summer, engaging in harvesting and rotation.

Abdirahman Osman Warsame, Fadumo Abdi Mohamud, Ahmed Hassan Ali · Zenodo (CERN European Organization for Nuclear Research) · Democratic Republic of the Congo (Kinshasa)

This scoping review synthesized evidence on the association between heavy metal contamination in vegetables sold in Kinshasa's urban markets, Democratic Republic of the Congo, and human biomarkers of consumer exposure. Available evidence consistently showed that vegetables, particularly leafy greens, from Kinshasa markets contained elevated levels of lead and cadmium, often exceeding international safety limits. However, studies directly linking vegetable contamination with human biomarkers are notably scarce, suggesting a potential exposure pathway but not establishing definitive causation.

Ashley S. Harms, DeAnn Presley, Ganga M. Hettiarachchi, Chammi P. Attanayake, Sabine Martin, Steven J. Thien · Natural sciences education · United States (Kansas City)

This case study examines the decision faced by Mr. John Holloway in Harmony Park, Kansas City, MO, regarding establishing a community garden on a vacant brownfield site in 2009. Concerns arose about soil contaminants on the site, leading to a dilemma about the potential harm versus benefits of gardening in a food desert. The case requires students to evaluate environmental, agronomic, human health, social, and economic issues related to urban soil contamination.

Barbara Walczak · Ochrona Środowiska i Zasobów Naturalnych · Poland (Zielona Góra)

This paper presents the total and phytoavailable copper content in allotment garden soils in Zielona Góra, Poland. Soil samples from eight garden plots and two neighboring areas showed total copper content ranging from 2.58 to 16.23 mg·kg⁻¹ and phytoavailable copper from 0.2 to 3.85 mg·kg⁻¹. The total copper content met the requirements of relevant Polish directives on heavy metals in soils and soil quality standards.

Nii O. Tackie, Nakia C. McCallum, Leonard Githinji, Desmond G. Mortley, Goppal P. Reddy, Jannette R. Bartlett, Prosper K. Doamekpor, Togo M. Traore · Journal of Economics and Sustainable Development · United States (Alabama)

This study assessed the impact of selected socioeconomic factors on residents' perceptions of community garden benefits in Macon County, Alabama. Data from a convenience sample of 217 participants, collected via questionnaire, showed that at least 73% agreed with nutritional, health, and community benefits. Age, education, and annual household income had statistically significant effects on these perceptions.

Okşan Tandoğan · MEGARON / Yıldız Technical University Faculty of Architecture E-Journal · Global

This study compiles a literature review on global efforts to create more livable physical environments for children, focusing on urban open spaces like home surroundings, school gardens, and playgrounds. It emphasizes the importance of these spaces for child development, socialization, and behavior formation. The review includes Child Friendly City initiatives and other practices related to streets, school gardens, playgrounds, and children's transportation.

Louise Chawla · Children Youth and Environments · United States

In 2013, the American Public Health Association issued a policy statement on "Improving Health and Wellness through Access to Nature." The statement reviews extensive evidence that contact with nature is a health-promoting experience in itself. Access to green spaces is associated with lower rates of heart disease, stroke, obesity, stress, and depression, as well as improved endocrine and immune system function, with low-income groups showing particularly significant benefits in reducing health disparities.

Ann Y. Robinson, Hannah C. Lewis · Iowa State University Digital Repository (Iowa State University) · United States (Des Moines)

Six schools in Des Moines, United States, served as testing grounds for using school gardens as an educational, community-building, and health-enhancing tool. FoodCorps members collaborated with teachers, staff, students, and parents to demonstrate how school gardens could enrich their lives.

Maeve Bassett · Fordham Research Commons (Fordham University) · Global

Urban gardens are advertised as a solution to limited food access in impoverished areas, but they are not productive enough to globally affect food production and the environment. However, for surrounding communities, urban gardens are cheap and effective solutions for many problems associated with poverty and food deserts, such as obesity, education, social interactions, income supplementation, health issues, dangerous neighborhoods, and refugee assimilation.

Neil Harris, Fiona Nicole Rowe Minniss, Shawn Somerset · International Journal of Environmental Research and Public Health · Global

A cross-sectional study conducted semi-structured interviews with twelve African humanitarian migrants participating in a campus-based community food garden. The study explored how involvement in the garden supported their connectedness with their new country. Thematic analysis revealed three important benefits: land tenure, reconnecting with agriculture, and community belonging.

Laura Oliven Silberfarb, Sonja Savre, Gayle Geber · Preventing Chronic Disease · United States (Hennepin County)

Hennepin County assessed the extent to which 41 cities were engaged in making policy, systems, and environmental (PSE) changes to increase residents' access to healthful food. Results revealed that some cities, particularly those with higher resident demand for healthful food, are making nationally recommended PSE changes, such as sponsoring farmers markets. However, cities moved more slowly to make changes in areas with perceived negative cost consequences or lesser public demand, such as parks and recreation vending.

Elizabeth Berg · Scholars' Bank (University of Oregon) · United States

State and local policies promoting urban agriculture contribute to revitalizing postindustrial American cities. Urban food systems encompass aspects of producing, processing, marketing, distributing, and consuming food, providing a multiplicity of benefits and services for local residents. These benefits include improved access to outdoor recreation, economic vitality, health and wellbeing, landscape beautification, and environmental restoration.

Melissa N. Poulsen, Kristyna R. S. Hulland, Carolyn A. Gulas, Hieu M. Pham, Sarah L Dalglish, Rebecca K. Wilkinson, Peter J. Winch · Culture Agriculture Food and Environment · United States (Baltimore)

This qualitative study explored the perceived benefits of community gardening in Baltimore, Maryland, through in-depth and focus group interviews with community gardeners. Gardeners reported benefits at multiple levels, including psychological benefits and a connection with nature individually, trusting relationships and shared learning at the neighborhood level, and reclaiming city space and improving the food environment at the community level.

Manuel Pastor, Rachel Morello‐Frosch · Health Affairs · United States (California)

This article reviews shifts in community development, highlighting programs that integrate community development, public health, and civic engagement to address neighborhood distress and promote well-being. Examples include Sacramento, California's Building Healthy Communities program, which promoted community gardens and bike paths, and San Francisco, California's Sunnydale-Velasco housing revitalization initiative, which is transforming a public housing site into a mixed-income community. These cases illustrate the importance of interdisciplinary approaches for economic mobility, democratic participation, and community health.

Yoo Mi Ha, Dong Yeob Kim, Dong Kyu Hwang, Kwang Sik Min · Journal of the Korea Society of Environmental Restoration Technology · South Korea

This study investigated the growth responses of eight medicinal plants, including Glehnia littoralis, Cryptotaenia japonica, Angelica gigas, Reynoutria japonica, Saururus chinensis, Houttuynia cordata, Ligularia fischeri, and Aralia cordata, under 70% shading and full sunlight conditions on a rooftop using artificial soil. Glehnia littoralis, Cryptotaenia japonica, Ligularia fischeri, Saururus chinensis, and Houttuynia cordata showed better growth under full sunlight, with Glehnia littoralis, Reynoutria japonica, Houttuynia cordata, and Ligularia fischeri exhibiting low stress under full sunlight in August. While 70% shading was effective for Angelica gigas, Reynoutria japonica, and Aralia cordata, Angelica gigas and Reynoutria japonica grew better under full sunlight during summer.

Pierrette Hondagneu‐Sotelo · · United States (California)

This chapter discusses possibilities for rethinking and reinventing new models of garden making in Southern California and metropolitan regions more generally. In Southern California, diverse gardens promoting environmental and cultural sustainability, shared backyard gardening, organic vegetable gardening, wall gardens, and lawn removal efforts are observed. The chapter reviews these projects, looking at new efforts in private residential gardens, urban community gardens, and public spaces, with a focus on immigration and the Southern California region.

Benjamin Drury, Renee Laliberte, Jared Watson, Connor Wilgress · Digital WPI · United States (Worcester)

The city of Worcester, MA, faces health issues due to economic instability and low access to affordable healthy food. While urban farming has the potential to address these problems, the city lacks an effective policy.