Research & reports

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.

Arti Bhatia, Shivdhar Singh, Amit Kumar · Water Environment Research · India (Delhi)

A study in Delhi, India, investigated heavy metal contamination (cadmium, lead, zinc, copper) in irrigation water, soil, and vegetables from four peri-urban and one wholesale site. Most samples from peri-urban areas exceeded safe limits for lead and cadmium. Vegetables from the wholesale market showed only higher lead concentrations. Among peri-urban vegetables, only okra exceeded the safe limit for cadmium, while several wholesale vegetables (potato, coriander, chilies, pea, carrot) exceeded the limit for lead regarding health risk.

Jaimie N. Davis, Mackenzie R Spaniol, Shawn Somerset · Public Health Nutrition · Global

A review of thirteen school garden programs for children (kindergarten to 8th grade) found methodological limitations: three studies lacked control groups, and none were randomized. While six of eleven programs showed increased vegetable intake and seven of eight showed increased preference for vegetables, four programs had no effect on intake. More research is needed to understand long-term dietary improvements.

Christopher Bryant, Ghalia Chahine · Geographical Research · Canada (Montreal)

This 2015 case study from the Montreal Region, Canada, analyzed an action research project initiated in 2008 to reduce the vulnerability of peri-urban agriculture. Despite initiatives since the mid-1960s, significant pressures continue to increase the vulnerability of peri-urban farming, with farmland often removed from agricultural reserves. The project in Senneville involved farmers, non-farm actors, and municipal presentations over three years, aiming to integrate conservation and leisure activities.

Sofya Aptekar · Sociological Forum · United States (New York City)

This 2015 ethnographic study, conducted between 2011 and 2013 in a diverse and gentrifying New York City neighborhood, analyzed conflicts within a community garden. It found that disputes among gardeners over aesthetics and conduct reproduced broader gentrification struggles, with privileged gardeners leveraging resources to impose their vision. However, less privileged gardeners, through cross-class and cross-racial relationships, were able to destabilize hierarchies and defend their alternative visions for the public space.

Rose Tardiff · Syracuse University Libraries (Syracuse University) · United States

The Salt City Harvest Farm (SCHF) in Kirkville, NY, is an all-volunteer project with limited capacity and concerns about long-term sustainability, despite providing benefits to New American participants. Research identified challenges and suggested organizational improvements, including clearly defining roles and integrating New Americans into decision-making. The study found that the SCHF would best suit participants' interests by remaining a place for growing their own food rather than transitioning to an incubator model.

宋志军, 刘黎明 · Acta Scientiarum Naturalium Universitatis Sunyatseni · China

Chinese urban agriculture has developed against a backdrop of multifunctionality, urbanization, industrialization, and non-agriculturalization. Since the reform and opening-up, the development of non-agricultural functions has complemented and advanced the broad modernization of urban agriculture, while simultaneously inhibiting, delaying, and destroying narrow modernization. This has led to a "reverse modernization" phenomenon in the spatial pattern of urban agriculture, characterized by changes spatially "opposite" to narrow agricultural modernization. China's current urban agriculture exhibits an overall spatial state of "reverse modernization" with various agricultural forms interspersed.

Amandine Joly · · France

This study characterized and strategically analyzed urban agriculture for the IETI external planning and environment consulting firm in Île-de-France, France. The analysis aimed to help IETI position itself commercially in urban agriculture, identifying both the benefits and the obstacles the firm might encounter. The study also briefly discussed the various scales of urban agriculture's integration into the territory and its advantages for the consulting firm.

Jingjing Zhang, Jingshuang Liu, Rui Yu, Qiang Liu, Yang Wang · Human and Ecological Risk Assessment An International Journal · China (Jilin City)

This study analyzed 50 surface soil samples from urban vegetable fields in Jilin City, China, for thirteen organochlorine pesticides (OCPs). Based on soil quality standards, DDTs and chlordanes were categorized as light pollution, while HCHs showed no pollution for most samples. The study concluded that despite the presence of various OCPs residues, the soils are still safe and suitable for agricultural production.

Fikadu Goshu Fufa · European Journal of Business and Management · Ethiopia

A study of 96 micro and small enterprises (MSEs) in Nekemte town, Ethiopia, found that educational status of MSE operators negatively affects business profitability growth. Additionally, the study revealed that microfinance institution (MFI) loan terms are too short for business operations, and most MSEs rely on personal savings for finance.

Eric Holt-Giménez · Journal of Agriculture Food Systems and Community Development · Global

This paper argues that the modern food system, shaped by 30 years of neoliberal globalization, has led to unprecedented global inequality, disproportionately affecting people of color. Despite the emergence of a U.S. food movement focusing on various components like urban agriculture, the underlying structures of the corporate food regime continue to control the context of these alternatives, hindering systemic change.

Simon Hazell, Victoria Delbridge, Beatrice Conradie · UR UCT Undergraduate Research · South Africa

A study in Lavender Hill, Cape Town, South Africa, interviewed 50 participants in the Mothers Unite programme to assess the benefits and constraints of homestead-based urban agriculture. Despite the potential for food gardening to alleviate food insecurity and free up 11% of household income, two-thirds of the group had not tried it. Barriers to adoption included lack of space and limited cash flow, with respondents showing little concern for water or compost costs.

Sarah Oloo Masawa, George G. Wagah, Reuben Oyoo Mosi · International Journal of Physical and Social Sciences · Kenya

This 2011 study in Bondo Sub County, Kenya, assessed the integration of urban and peri-urban agriculture (UPUagr) into urban planning, using a descriptive survey design with 368 households and 248 traders. A major challenge identified was the lack of supportive local policy and legal frameworks for UPUagr, and problems with its integration into broader urban development plans. The study found that UPUagr complemented rural agriculture and increased food system efficiency.

Margaret Ellen Kubek · UWM Digital Commons (University of Wisconsin–Milwaukee) · United States (Wisconsin)

This thesis explored the food provisioning strategies of year-round and seasonal residents of Phelps, WI. Ethnographic data gathered in the summer and fall of 2011 found that Phelps, WI, is classified as food insecure, leading residents to modify routines for lengthy drives to purchase food, while year-round residents utilized self-provisioning strategies. Newly initiated farmers' market and community supported agriculture projects increased overall food availability, but these efforts were mostly utilized by seasonal residents, with year-round residents finding these options unaffordable and inconveniently scheduled.

Benno Gammerl, Rainer Herrn · sub\urban zeitschrift für kritische stadtforschung · Global

This article outlines the theoretical, empirical, and political potential of the tension between affective disruptions of ordered structures and the emotional processing of power-infused spatial relations. It uses urban gardening practices and gentrification debates as examples to demonstrate how analyzing dynamic interactions between spaces and feelings can foster a critical perspective on urbanity, particularly regarding issues of equity. The study focuses on the ambivalent dynamics and effects of emotional-spatial processes.

Martin Dyer, Richard M. Mills, Beatrice Conradie, Jenifer Piesse · Open University of Cape Town (University of Cape Town) · South Africa (Cape Town)

This paper investigates the efficiency relationships between inputs and outputs of urban micro-farms in two Cape Town townships, Nyanga and Khayelitsha. Data Envelopment Analysis (DEA) applied to 33 producers supplying a social enterprise box scheme revealed an average overall efficiency of 72.4%. Overall efficiency was negatively correlated with land holdings and the use of compost and seedlings, indicating efficiency losses with greater input quantities. Furthermore, it was not shown that mulching or operator experience increases profitability.

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.

Qing Guo · · China (Dalian)

This paper, based on the China urban agriculture development report 2013 and a SWOT analysis, studied the development of urban modern agriculture in Dalian. The study found that the agricultural industrial structure, shopping basket program, agricultural management system, land circulation, and agricultural information technology have restricted the development of Dalian's urban modern agriculture.

Nida Bayındır · Route Educational and Social Science Journal · Global

This research investigated primary school teachers' pedagogical expectations regarding school gardens. The study found that 60.7% of primary school teachers considered their school gardens pedagogically insufficient. Teachers primarily identified a need for more pedagogical equipment in school gardens, and desired features like Atatürk busts, flags, mini activity corners, floor games, and functional sports fields.

Díaz Rizo, Óscar, Olivares Rieumont, Susana, D'Alessandro Rodríguez, Katia, López Pino, Neivy, Arado López, Juana Orquídea, Gelen Rudnikas, Alina, Díaz Arado, Óscar, Lima Cazorla, Lázaro, García Céspedes, Damaris, González Hernández, Patricia, Arencibia Carballo, Gustavo, Padilla Cabal, Fátima, Echevarría Castillo, Frank, Hernández Merlo, M., Casanova Díaz, A., Corrales Martínez, Y., Reyes, H., Viguri Fuente, Javier Rufino, Ródenas Palomino, Carmen, Santana, J. L. · UCrea (University of Cantabria) · Cuba

This 2015 study in Cuba used X-ray Fluorescence and Low Background Gamma Spectrometry to analyze heavy metal and radioactive element concentrations in marine/river sediments and urban soils. It found heavy metal contamination in coastal sediments of Guacanayabo Gulf and possible selenium contamination in the Sagua River estuary. The study also reported heavy metal concentrations in urban soils of Havana, Moa, Las Tunas, and Cienfuegos, including contamination levels in urban agricultural farms.

Jason Murillo, Environmental Health BCIT School of Health Sciences, Bobby Sidhu · BCIT Environmental Public Health Journal · Canada (Vancouver)

An online survey of 101 community gardeners from 23 community gardens in Vancouver, Canada, investigated perceptions of soil health and contamination. The study found no association between soil testing and garden location, nor between garden location and gardeners' confidence in soil safety. Despite potential health concerns from contaminated soil, community gardeners refrained from soil testing and remained confident in their soil's safety, indicating a gap in safety standards.

Kyung-chan Min, Jee-young Kim, yong-hoon Son · Institutional Repositories DataBase (IRDB) · South Korea

A study in Gwanak-gu, Seoul, South Korea, investigated 45 spontaneous agricultural lands, primarily around Mt. Gwanak, which often present risks like disaster, pollution, and landscape degradation. Using GIS, satellite images, field surveys, and interviews, the study classified these lands into six types. Three types were well-managed, while three types were in poor condition, indicating governance challenges. The research discusses the causes of these conditions and explores the potential for these lands to become community open spaces.

Elvis Albert Robe Wandscheer, Rosa Maria Vieria Medeiros · LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) · Brazil (Porto Alegre)

This study descriptively and qualitatively analyzed the socioeconomic dynamics of urban agriculture in Porto Alegre, Brazil. It highlighted issues in the demarcation of urban and rural spaces, showing that many areas designated as urban possess distinctly rural characteristics. The most significant impacting factors were markets and real estate speculation. The study concluded that while urban agriculture is relevant to the municipality, it faces difficulties arising from competition for space, which can lead to the extinction or displacement of production activities to other areas.

Achamyeleh Gashu Adam · · Ethiopia

A study assessed the process of built-up property formation in Ethiopia's peri-urban areas. Through analysis of survey results and a review of relevant literature, the study elucidated the processes of peri-urbanization and new property development. It demonstrated that both formal (legal) and informal methods are equally important in converting peri-urban agricultural lands into urban built-up non-agricultural properties. This process creates intense competition for land between agriculture and non-agriculture, leading to the emergence of new property rights and the dissolution of existing traditional rights.

Gauthier Dobigny, Madougou Garba, Caroline Tatard, Anne Loiseau, Maxime Galan, Ibrahima Kadaouré, Jean‐Pierre Rossi, Mathieu Picardeau, Eric Bertherat · PLoS neglected tropical diseases · Niger

An extensive survey of urban rodents in Niamey, Niger, investigated the presence and distribution of rodent-borne pathogenic Leptospira species. Leptospires were not detected in the core city, but L. kirschneri was found in Arvicanthis niloticus and Cricetomys gambianus, rodent species restricted to irrigated cultures within the city. This study indicates the importance of market gardening in the maintenance and circulation of leptospirosis within Sahelian cities.