Research & reports

Colin Cox, Jessica A. Hoffman, Mariya Shiyko, Catherine Wirth · Journal of Hunger & Environmental Nutrition · United States

A study in the United States evaluated the effect of text message reminders on farm share pickup rates among Head Start parents participating in a subsidized community supported agriculture program. While pickup rates were high for both text messaging and no text messaging groups, with 96% vs 92% within two days and 69% vs 62% on the day of delivery, no statistically significant differences were found between the groups. The study's ability to isolate the effects of text messages was limited because program coordinators used multiple methods to promote parent participation.

Vera Institute of Justice · Vera Institute of Justice · United States

Published 21 September 2016. The Vera Institute of Justice reports its independent evaluation of ABLE, a programme for 16- to 18-year-olds at New York City's Rikers Island funded through the first US social impact bond. Using a quasi-experimental design comparing a 2013 cohort with people entering jail from 2006 to 2010 and with ineligible 19-year-olds, it tracked recidivism bed days over one year. The change in recidivism for eligible 16- to 18-year-olds was not statistically significant; the programme missed its pre-defined 10 per cent threshold and was discontinued on 31 August 2015.

Yuki Kato · Journal of Agriculture Food Systems and Community Development · United States (New Orleans)

This case study, based on ethnographic observation and interviews, examined an alternative food market in a New Orleans neighborhood to understand different views of "community." The study identified four distinct groups—community gardeners, locavores, hipsters, and local residents—each with different expectations for the organization. Findings did not demonstrate a unified community emerging around this organization, with no single group staking a claim on it.

Hugo Puerto · Journal of International Crisis and Risk Communication Research · United States (Florida)

This ethnographic study in Indian River County, Florida, investigated challenges in engaging Mexican im/migrant farmworkers in community-based health solutions, specifically community gardens. Despite efforts by farmworker leaders and the health department to promote community gardens for health and economic benefits, little engagement was observed within the farmworker community. The research, based on participant observation, surveys, and interviews, analyzed barriers to healthy eating and the limited role of grassroots initiatives in improving health outcomes.

Laura Forbes · Digital Commons - CSUMB (California State University, Monterey Bay) · United States (California)

School gardens are common in elementary schools, but teachers find it challenging and unnecessary to incorporate them into their time and everyday curriculum due to time restrictions and the need to focus on required classroom curriculum. This capstone focuses on the beneficial factors students can receive by properly implementing the school garden into everyday curriculum and how teachers can successfully incorporate it. By creating a garden-based program and lesson plans that incorporate required subjects, teachers can spend the necessary time teaching required subjects while utilizing the school garden.

Geneviève S. Metson, Elena M. Bennett · PLoS ONE · Canada (Montreal)

This study quantified the role of urban agriculture (UA) in phosphorus (P) cycling in Montreal, Canada, using existing data and surveys of local UA practitioners. In 2012, Montreal imported 3.5 Gg of P in food, with 2.63 Gg accumulating in landfills, 0.36 Gg discharged to local waters, and only 0.09 Gg recycled through composting. UA was found to be only a small sub-system in the city's overall P cycle, contributing just 0.44% of the P consumed as food. Although recycling rates within the UA system are high, the land area dedicated to UA is too small to accommodate all P waste produced on the island.

Kit Yieng Chan, Michelle Chan, Oi Yan Chan, Thomas Y.K. Chan, Tsz Mei Chan, Sharon B. Chang, Kenrick Chau, Tarik Chelali · cIRcle (University of British Columbia) · Canada

Research at the University of British Columbia (UBC), Canada, investigated whether rooftop gardens could reduce greenhouse gas emissions and food transportation carbon emissions. While edible landscapes could potentially assist with climate goals, they require careful selection of crops, buildings, and resources. Preliminary calculations indicated that rooftop and community gardens would do very little to reduce the UBC campus's dependency on imported food.

Maggie Caroline McGriff · Journal of the Arkansas Academy of Science · United States

This study investigated whether three elementary school garden club programs influenced students' attitudes and behaviors regarding fruit and vegetable consumption. Quantitative analysis using pretest and posttest questionnaires found non-significant results, indicating no significant effect on participants' perceptions of fruit and vegetable consumption. Qualitative analysis of participant interviews also showed mostly non-significant changes in healthy eating, although participants reported positive experiences in other aspects like respect for nature and enjoyment of activities.

Green Hope, River Edge, New Jersey 07661, USA., Hye Jin Keum · Journal of people, plants, and environment · United States

The philosophical background and historical development of the school garden movement in the USA were examined. The movement demonstrated a process of formation, decline, and revival. It began to diminish after World War I and was pushed to extinction by technological advancements in the 1950s, before resurging from the 1990s to address childhood obesity, nature-deficit, and improve academic achievements.

Katherine Luke · D-Scholarship@Pitt (University of Pittsburgh) · United States (Pittsburgh)

This study used a door-to-door survey in six Pittsburgh, Pennsylvania neighborhoods to measure the impact of community gardens on residents' perceptions of food access. It found that many gardeners do not consider gardening to improve their personal food security, and despite geographic proximity and expressed interest, community garden participation rates were low. Social and emotional barriers, including lack of gardening knowledge and racial prejudice, appeared to prevent residents from becoming active participants.

Larissa Vásquez-Moreno, Ana Córdova y Vázquez · International Journal of Urban Sustainable Development · Mexico (San Cristobal de Las Casas)

This study developed a conceptual framework to assess urban agriculture's (UA) potential contributions to urban sustainability (US). The framework was applied to a qualitative analysis of UA practices in San Cristobal de Las Casas, Mexico. The study found a rich practice of UA in the city and that the framework was valuable for evidencing data and stimulating analysis. However, the study also discusses limitations of UA and further refinements needed for the framework to guide actions towards increasing UA's impact on urban sustainability.

Evan Weissman · Journal of Agriculture Food Systems and Community Development · United States (New York City)

This essay refutes the claims by Hallsworth and Wong (2013) that the benefits of urban food gardening are exaggerated and that it cannot deliver fresher or lower-cost foods. It states that Hallsworth and Wong's assumptions are incorrect and that urban gardening plays a significant role as public space, an economic development strategy, and a community-organizing tool, contributing to household food security. For example, a 0.2-hectare urban farm project in Brooklyn, New York, "East New York Farms!", produces over USD20,000 of fresh produce annually, with over 70% of transactions made through SNAP, reaching high-need community members.

Jennifer E. Reeves · OhioLink ETD Center (Ohio Library and Information Network) · United States (Cleveland, Ohio)

This two-year study in Cleveland, Ohio, USA, investigated urban soil health via nematode food web analysis and crop productivity via tomato fruit yield in urban gardens. Market gardens showed significantly more soil organic matter, nitrogen pools, and nematode presence than community gardens in both 2011 and 2012. However, despite these differences, there was no significant difference in the total yield of tomatoes per square meter between market and community garden types in either year. Gardens with raised beds had significantly more soil moisture content and soil organic matter than those with flat beds.

Kevin Wonch · Hope College Digital Commons (Hope College) · United States (Detroit)

This study examines urban farming in Detroit, a city experiencing rapid decline with a population under a million, limited access to fresh food stores, and extensive vacant land. While arguing for modern urban farming as a foundation for sustainable practices and positive development, it notes that some political and business analysts question its ability to make a significant impact on the city’s future.

William E. Fry, M. T. McGrath, Abby Seaman, Thomas A. Zitter, A. McLeod, Giovanna Danies, Ian M. Small, Kevin Myers, Kathryne L. Everts, Amanda J. Gevens, Beth K. Gugino, Sara B. Johnson, Howard S. Judelson, Jean B. Ristaino, Pamela Roberts, Gary A. Secor, K. W. Seebold, K. Snover-Clift, A. Wyenandt, Niklaus J. Grünwald, Christine D. Smart · Plant Disease · United States

The 2009 tomato late blight pandemic in the eastern United States resulted in significant crop losses for many home gardeners and organic producers. This event led to widespread questions regarding its causes and differences from previous epidemics.

D. Z. Phillips, Heather I. Sullivan · ISLE Interdisciplinary Studies in Literature and Environment · United States

This collection of essays for ISLE assesses the material aspects of healthy economies, environments, and bodies, arguing that the traditional economic-ecological "health" dichotomy is insufficient. It finds that the determination of "healthy" is complex, as artificial environments can be benign, and even a flourishing community garden can have neglected produce going to waste. The essays explore how a large number of healthy human bodies can be detrimental to healthy environments.

Mirella Cultrera, Maria Christina de Mello Amorozo, Fábio Cop Ferreira · SITIENTIBUS série Ciências Biológicas · Brazil (Mato Grosso)

An ethnobotanical study in five peripheral neighborhoods of Santo Antônio do Leverger, Mato Grosso, Brazil, surveyed 135 households and detailed 30 to characterize food plant cultivation. Ninety-seven species from 38 families were identified across homegardens, fields, and empty lots. While some species were common, the similarity between species/varieties across households was generally below 50%, and many had low frequency, revealing a vulnerability to species loss despite social network circulation.

Eric L. Hazzard, Elizabeth Moreno, Deborah Lane Beall, Sheri Zidenberg‐Cherr · Public Health Nutrition · United States (California)

A mid-term evaluation was conducted on 3103 California public schools (80.6% of applicants) to assess the effectiveness of the California Instructional School Garden Program (CISGP). Many schools reported not achieving their predicted goals related to the CISGP grant, with only 39.4% of schools accomplishing all their garden-related goals. Additionally, 37.8% of schools reported that their school gardens were negatively affected by the California budget deficit, suggesting that the discrepancy between predicted and actual grant utilization may be due to a combination of budget shortfall and insufficient grant award amounts.

Joshua M. Davis · School for International Training Digital Collections (School for International Training) · United States

This paper evaluates the sustainability of the Market Basket (MB), a modified Community Supported Agriculture program run by Post Oil Solutions in Brattleboro, Vermont, USA, that provided local, fresh vegetables to low-income consumers at wholesale prices across two locations over two years, drawing on the author's experience as market coordinator, focus groups, interviews, and secondary data. Over 60 people participated in the MB during that period, and the paper argues the MB was an effective approach for increasing produce consumption, but issues affecting its sustainability remained unresolved — most notably funding to support a coordinator and increasing participation among generationally low-income consumers — with steps to address both currently underway.

Kevin C. Matteson, Gail Langellotto · Insect Conservation and Diversity · United States (New York City)

The ability of adding 70 plants of seven native wildflower species over two years to augment beneficial insect richness, including bees, butterflies, and predatory wasps, was assessed in New York City community gardens. Bayesian analyses failed to find a strong influence of the native plant additions on beneficial insect richness, even after correcting for prior floral abundance. Butterflies and megachilid bees were found to heavily utilize introduced ornamental and crop flowers in these gardens, even when native flowers were present.

Eric L. Hazzard, Elizabeth Moreno, Deborah Lane Beall, Sheri Zidenberg‐Cherr · The FASEB Journal · United States (California)

This study evaluated the effectiveness of the California Instructional School Garden Program (CISGP) grants by surveying 749 grantee schools. It found that the development, sustained use, or expansion of gardens was less than expected (p=.01), and fewer schools than expected reported using gardens for instruction (p<.001) or to teach academic subjects (p<.003). Less than 40% of schools reported accomplishing all their garden goals with the funds.

M.R. Gorham, Tina M. Waliczek, Amy Snelgrove, Jayne M. Zajicek · HortTechnology · United States (Houston)

A pilot study in Houston, Texas, investigated the impact of 11 established community gardens on property crime numbers using 2005 crime data. Statistical comparisons between community garden areas and randomly selected city areas showed no statistically significant differences in the mean number of crime occurrences. The presence of a community garden was not found to be a predictor of a lower crime rate for a neighborhood.

Anne‐Marie Hamelin, Céline Mercier, Annie Bédard · Public Health Nutrition · Canada (Quebec City)

A study in Quebec City, Canada, interviewed 55 food-insecure households and 59 stakeholders to compare perceptions of food security needs and community programs. While both groups agreed on the need for better financial resources, households reported that food quality and access were neglected, and that existing programs, even combined, were insufficient to meet their needs. Stakeholders, however, largely perceived households as satisfied with programs and believed their primary need was a basic amount of food. The study concluded that community programs alone cannot bring about the social change needed to prevent food insecurity.

Edilene Lagedo Teixeira, Janailton Coutinho, Adriano Costa da Silva, Andréa Soares, Camila Silva de Oliveira, Carla Gomes dos Santos, Beatriz Ribeiro Guimarães · REVISTA BRASILEIRA DE AGROECOLOGIA · Brazil

This study, conducted in 2003 by UNISOL REGIONAL and UFRRJ, aimed to develop an organic, condiment, and medicinal garden through social education activities. A socioeconomic survey of the community revealed urgent problems with water scarcity, mosquitoes, and rodents. While two garden beds and 12 planters were built to encourage self-sustaining urban agriculture, the abstract does not explicitly state the success or failure of achieving self-sustainability or addressing the identified community problems beyond the construction itself.

Adelaide Ellen Pigg, Tina M. Waliczek, Jayne M. Zajicek · HortTechnology · United States (McAllen, Texas)

A study of 196 elementary students in McAllen, Texas, compared the academic progress of students participating in a school garden program with those receiving traditional classroom instruction. No statistically significant differences were found in science achievement scores, indicating similar benefits for both groups. However, students receiving traditional math instruction showed more improved math achievement scores compared to those in the garden program.