Research & reports

Mohamad Assad, Michel Chalot, Fabienne Tatin‐Froux, Valérie Bert, Julien Parelle · Journal of Environmental Quality · Global

This study investigated element transfer in edible crops (cucumber, pepper, cabbage, lettuce) and poplar (Skado cultivar) grown on soils contaminated with sediments dredged from water canals in the 1960s, aiming to develop a biomonitor. The results showed accumulation of cadmium (Cd) and zinc (Zn) in the edible parts of crops, particularly leafy vegetables, indicating that Cd could be ingested in amounts reaching the tolerable daily intake (TDI) in this context. No accumulation of lead (Pb) was detected.

Walter W. Furness, Courtney M. Gallaher · Local Environment · United States (Rockford)

A study in Rockford, Illinois, examined community gardens to assess their contribution to residents' access to fresh produce and other social benefits. Data was collected through interviews with gardeners, focus groups, and surveys of food pantry users. The findings indicate that while non-gardening community members benefit from increased produce provided by the gardens, they do not receive all the social and communal benefits associated with active garden participation.

P.S. Bouda, Edmond Hien, A. Dioma, Hyacinthe Kambiré, Yacouba Maïga, Der Adolphe Somé, Sylvie Nazaret, A.S. Ouattara · DOAJ (DOAJ: Directory of Open Access Journals) · Burkina Faso

A study in Ouagadougou sub-urban agricultural fields, Burkina Faso, assessed the impact of using untreated Solid Urban Wastes (SUW) as agricultural fertilizers on soil properties and crop production. SUW amendment significantly increased pH, total C, N, P, and available P, and maize height and biomass yield were 124% and 164% higher in amended plots, respectively. However, trace metal elements (Cu, Zn, Pb, Ni, Cr) concentrations were higher in amended fields, indicating that urban waste carries contaminants posing public health risks.

肇 石原, Hajime Ishihara · Institutional Repositories DataBase (IRDB) · Japan

This paper compared urban agriculture promotion basic plans formulated by six prefectures, including Tokyo, Osaka, and Aichi, as of October 2017. The analysis revealed policy challenges concerning the scope of inheritance tax deferment, the lending and borrowing of agricultural land in urbanization promotion areas, and the participation of non-farmers in agriculture. It concluded that the national government urgently needs to address these issues, and local governments should propose systems tailored to local conditions.

Jane Battersby, Vanessa Watson · Figshare · Africa

Recent research in African cities indicates that urban agriculture is not as important a food source for low-income households as often believed. Most African urbanites source their food from retail outlets, suggesting that solutions to urban food insecurity need to consider urban food marketing and distribution structures, rather than solely supporting food production through urban agriculture. This chapter reviews evidence supporting the argument that urban agriculture is not a primary food source for the poor.

Daniel Calbino, I. Borges, Luis Antonio Andrade Rosas, C.T. Abreu, Fernanda Anziliero Gonçalves · COLÓQUIO - Revista do Desenvolvimento Regional · Brazil

This case study in Sete Lagoas, Brazil, discusses the advances and challenges of agroecological urban community gardens, which have a history of approximately 33 years. Research findings indicate that public policy enables income generation for producers, increased supply, and food security in the region. However, the study highlights the need for greater support to address producers' limited technical knowledge and the importance of more supportive interpersonal relationships.

Angelina Moreira Melo, Daniel Calbino, Yuri Gomes Figueiredo, Fabiola Paulino da Silva, E. R. de O. Carvalho · Cadernos de Agroecologia · Brazil

This empirical work, based on participatory research, analyzed the social relations between producers of the Vapabucu community garden in Sete Lagoas, Brazil, and municipal public support organs. Research results indicate that while agroecological knowledge has advanced significantly in the technical dimension of agronomic production, the social relations among producers still show contradictions inherent to agroecological assumptions.

John Diaz, Laura A. Warner, Sue Webb, Debra M. Barry · Applied Environmental Education & Communication · Global

This study used a consensus-driven process to identify central issues impeding the sustained success of school gardens. It outlined practical, logistical, and institutional barriers that need to be addressed to ensure their success in supplementing education.

Salvatore Engel‐Di Mauro · Gender Place & Culture · Global

This study discusses two concerns regarding urban community gardens' political potential, suggesting caution. It notes that the community in urban community gardens can be reactionary and capitalism-friendly, potentially impeding the collectivization of social reproduction if it remains largely women's work. Additionally, urban gardeners, primarily women, people of color, and the elderly, may face exposure to toxic substances and increased care work needs due to health effects.

Cristh Ellen Ferreira Pinheiro, Hélder dos Anjos Augusto, Cledinado Aparecido Dias, Fábio da Silva Gonçalves, Marcelo Oliveira · LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) · Brazil (São Paulo)

This study in Montes Claros, MG, Brazil, investigated the reality of urban farmers commercializing vegetable production to propose multidisciplinary extension and research actions. It identified agricultural production regions, the main functions of urban agriculture from the farmers' perspective, and the difficulties faced by these producers. The analysis highlighted the need for multidisciplinary approaches due to the identified demands, implying challenges in economic viability.

Jose Martinez Carbonell · Cultura Educación y Sociedad · Colombia

A qualitative study involving twelve tenth-grade students and their parents at Jose Dadul Agroecological Technique IED in Colombia implemented a school garden as a research tool. The study found limitations during activity implementation, including lack of interest from parents acting as companions, insufficient space and time, and cessation of academic activities. Despite these constraints, it was possible to increase motivation for both parents and students through research and contemporary strategies.

Bolanle Wahab, Ayobami Abayomi Popoola, Hangwelani Hope Magidimisha · PLANNING MALAYSIA · Nigeria (Ibadan)

A study in Ibadan, Nigeria, investigated urban farmers' access to land and local planning authorities' land allocation activities, using questionnaires with 244 urban farmers and key-informant interviews. Rapid, unplanned urban growth limited farmers' access to land, with over 30% farming on family land and 17% on open spaces like floodplains or under power lines. Barriers included land unavailability, finance, and land tenure system issues.

Brian Elliott · Environmental Ethics · United States

This paper argues that Portland, Oregon's thriving urban agriculture scene, despite its reputation for sustainability, should be viewed as an adjunct to advanced neoliberal urban governance rather than a resistance movement against it. It critiques recent case studies that suggest the social sustainability of urban agriculture remains an open question, asserting that this view lacks a critical urban geography perspective. The study concludes that urban agriculture in Portland, on the whole, contributes to uneven development and gentrification.

ADERINSOLA M. AREGBESOLA · · Nigeria (Ondo State)

A study in Ondo State, Nigeria, examined food security among peri-urban farming households using descriptive statistics, a food security index, logistic regression, and the coping strategy use index. It found that 54.4% of households were food insecure, with a 62% calorie deficit for these households, while 45.6% were food secure, exceeding calorie requirements by 48%. Household income positively affected food security, while household size had a negative effect.

Timothy J. Kidd · Great Plains research · United States (Iowa)

Based on qualitative research conducted from 2008 to 2012 in Iowa, this book illustrates the complexities and challenges faced by small farms producing local foods in a commodity-driven state. It provides case studies on the difficulties in balancing small farm profitability and social impacts for those involved in community-supported agriculture, farmers' markets, and farm-to-school produce. The research also reveals that popular assumptions about local food, including consumers becoming informed advocates for sustainable agriculture, are oversimplifications.

Jun‐Hong Chen, Zhifeng Gao, Lisha Zhang, Chen, Junhong, Gao, Zhifeng, Zhang, Lisha · 2018 Annual Meeting, February 2-6, 2018, Jacksonville, Florida · United States

This study applied quantitative methods to identify barriers that prohibit CSA (Community Supported Agriculture) participation or factors affecting unsubscribe from CSA membership. Based on 780 responses collected from a national consumer survey, only 6% of the total sample were current CSA members. The top two reasons for unsubscribing from CSA membership were preferring farmer's markets and not cooking at home. On the other hand, the top two important factors for participation in CSA were supporting local and family farms.

Marttem Costa de Santana, Everardo de Sousa Luz, Maurício Ribeiro da Silva, Maclóvia Corrêa da Silva, Eloy Fassi Casagrande · Sociedade e Território · Brazil

This qualitative field study in two cities in Piauí, Brazil, evaluated whether working conditions of urban and peri-urban agricultural producers contribute to food production. It concluded that public authorities' participation is necessary to address failures in the small-scale agricultural production system and improve working conditions for urban horticulturists.

Fikret ALINCAK, Mehmet Ali Öztürk, Tuğba TURAK · The Online Journal of Recreation and Sport · Turkey (Gaziantep)

This study investigated the pedagogical expectations of 25 classroom teachers in Gaziantep, Turkey, regarding playgrounds in school gardens, using open-ended questions and content analysis. The findings revealed that teachers perceived school gardens as inadequate and unsuitable for students' levels, and considered the areas unreliable. Teachers concluded that playgrounds should be wide, have diverse game tools, be educational, and have corrected ground for student safety to support children's development.

Paloma Gonzalez de Linares · International Journal of Design & Nature and Ecodynamics · Hungary (Budapest)

This paper aimed to assess factors contributing to more successful integration of urban agriculture in some cities and to introduce agro-ecology practices in public green spaces and community gardens through landscape assessment and map-based comparison. A key problem identified was the lack of motivation among planners to integrate urban agriculture into urban plans, preventing these green structures from becoming part of the city's landscape and dynamics. The sustainability of food systems was concluded to depend on the city's planning strategy and governance policies.

Piyapong Boossabong · Amsterdam University Press eBooks · Thailand (Bangkok)

In Bangkok, most vegetables consumed in the city are transported from remote rural areas and contaminated with chemicals. Governmental policies have failed to control chemical use, while monopolistic food corporations constrain the sustainability of local food systems. This chapter highlights the collaboration of urban farming networks in Bangkok that aim to produce alternative food sources and create alternative markets, arguing that these networks can construct alternative urban spaces for social action.

Sécou Omar Diédhiou, Oumar Sy, Christine Margétic · Espace populations sociétés · Senegal (Ziguinchor)

A study in Ziguinchor, Senegal, surveyed 248 farmers and 130 vegetable vendors in 2016 and 2017 to examine the role of urban agriculture. Urban expansion has led to shrinking agricultural land and land-use conflicts, while increasing food demand. Women play a central role from production to commercialization, farming in multiple locations for self-consumption and income, but the sustainability of these practices requires integration into proactive urban development policies.

Zane Vincēviča–Gaile, William Hogland, Māra Stapkēviča, Juris Burlakovs · Linnaeus Eco-Tech · Latvia

This study investigates the transfer of metallic elements in the soil-plant segment of the food chain through laboratory and field experiments. It also includes a quantitative analysis of food samples from Latvia, including fruits and vegetables from Riga city allotment gardens, to identify element composition and potential contamination risks from urban pollution. Results of experiments and analyses revealed the influence of factors such as seasonality, botanical origin, site-specific factors, agricultural practice, and food processing on element transfer.

Cécile Le Guern, Liliane Jean‐Soro, Béatrice Bechet, Thierry Lebeau, Dorine Bouquet · Land Degradation and Development · France

Urban allotment gardens in Nantes, France, were found to have soil contamination, with lead (Pb) levels ranging from 100–400 mg kg−1, posing health risks. Local actors collaborated to characterize soil, evaluate sanitary risks, and discuss management options. The most frequent solution was replacing polluted soils with clean soils, while other strategies included on-site management of excavated soil, non-accumulative cropping, or changing land use.

Marek Kopacki, Krystyna Rysiak, Mariusz Szmaraga · Annales Horticulturae · Poland (Lublin)

This 2014 study near Lublin, Poland, evaluated the decorative qualities and health of Tithonia rotundifolia in urban plantings, including a botanical garden and allotment gardens. Observations at the end of the vegetation period revealed disease symptoms, and mycological analysis of dead plant parts identified isolates of fungi from eleven genera. Dominant and dangerous pathogenic genera, Alternaria alternata and Botrytis cinerea, were found to affect T. rotundifolia.

Jazmin Gomez · ScholarsArchive (Brigham Young University) · United States (New York City)

A narrative set in Harlem, New York City, follows three teenagers investigating an attack in a community garden. Their investigation uncovered valuable secret paintings and a politician's plot that threatened to ruin their neighborhood. The friends risked their lives to save both the rare masterpieces and their community's livelihood from this plot.