Research & reports

GM Saifur Rahman, Tahmina Akter · Bangladesh Journal of Zoology · Bangladesh

An entomological study in September 2019 examined 100 houses across five areas of Gazipur City Corporation, Bangladesh, to identify dengue vector breeding grounds. Both Aedes vectors were found in all areas, with Aedes aegypti being dominant. Rooftop gardens and under-construction sites were identified as the most important breeding sites, and the study found a comparatively higher number of Ae. aegypti breeding, indicating a potential for a major outbreak.

Salvatore Engel‐Di Mauro, George Martin · · Global

This chapter examines the global relationship between food growing and capitalism over 500 years, identifying three profit-seeking formats: mercantilism, industrialism, and global financialization. It argues that capitalism has led to a de-industrialization of cities and a commodification of agricultural products by corporate megafarms, contributing to green gentrification in urban redevelopment. This has incited a food resistance trend, leading to the emergence of community gardens and farms.

K. C. Sahu, M. K. Satapathy · International Journal of Agriculture Extension and Social Development · India

This paper discusses rooftop gardens as an alternative for vegetable production in Bhubaneswar City, India. While rooftop agriculture can improve ecosystem services and enhance urban biodiversity, vegetable production activities on rooftops are limited due to multiple challenges that need to be addressed for widespread implementation. Rooftops are not a total solution for food security but can supplement other urban food sources.

Stefanie Albrecht, Arnim Wiek · Journal of Agriculture Food Systems and Community Development · Global

This study compiled evidence from over 200 food forests worldwide, with detailed insights from 14 exemplary food forests in Europe, North America, and South America, gained through site visits and interviews. Findings indicate that most food forests perform well on social-cultural and environmental criteria, such as building capacity, providing food, enhancing biodiversity, and regenerating soil. However, for broader impact, food forests need to enhance their economic viability, as they currently show a deficit in this area.

Salvatore Engel‐Di Mauro, George Martin · · Global

Claims that urban food production raises food security and creates a more just society are questionable and contradicted by data from the Global North. Urban land is insufficient, sunlight is often inadequate, and soil pollution is widespread. Technological attempts like vertical and rooftop farming have limited feasibility, may worsen environmental and social problems, and do not address major food sources, access, or waste. Furthermore, urban gardens are increasingly linked with socially devastating gentrification.

Adugnaw Maru Gezahegn, Fekadu Fufa, Esayas Alemayehu, Abebe Beyene · Journal of Chemistry · Ethiopia (Modjo city)

This study investigated the spatial distribution and speciation of chromium in water, soil, and edible plants in tannery-contaminated areas of Modjo city, Ethiopia. Total chromium in the Modjo River was 20.6 mg L−1 upstream, and soil Cr (III) and Cr (VI) concentrations were found to be higher than guideline values. Chromium concentrations in edible plants were also significantly higher than in control areas, with roots accumulating more chromium than leaves and fruits. It was concluded that water, soil, and edible plants in this area contain chromium concentrations higher than recommended for a healthy environment and human consumption.

Leigh Whittinghill, Sait Sarr · Urban Science · United States (Louisville, Kentucky)

A survey of 40 urban farmers and gardeners in Louisville, Kentucky, assessed their agricultural practices and barriers. Most growers engaged in urban agriculture for non-commercial reasons, with only 11% operating for profit, and smaller farms were less likely to be profitable or certified. Common sustainable practices included composting (60%) and crop rotation (54%), while challenges involved limited space, farm certification access, pests, and lack of record-keeping.

Ana Poštek, Ivica Kisić, Marija Cerjak, Luka Brezinščak · Journal of Central European Agriculture · Croatia

This paper analyzes various social aspects of urban agriculture and presents examples from Croatia where social benefits are the primary purpose. Urban agriculture can have social effects such as fostering activism, gender equality, social cohesion and inclusion, education, and cultural heritage preservation. However, policymakers struggle to implement urban agriculture within city planning.

Cecilia Herbón, María Teresa Barral, Remigio Paradelo · Applied Sciences · Spain (Santiago de Compostela)

The concentrations of trace elements Cu, Pb, Zn, Ni, Cr, and As were investigated in 55 urban soils in Santiago de Compostela, northwestern Spain. While most soils showed higher trace element concentrations than regional backgrounds, they were not classified as contaminated according to Spanish regulations. However, geoaccumulation index values indicated low to moderate pollution levels in most soils, with Cu, Pb, and Zn highest in city center green areas, and Cr and Ni linked to parent material lithology.

Subeen Jang · The Korea Association of Yeolin Education · South Korea (Seoul)

This study analyzed the implementation process of the School Farm Program in Seoul, South Korea, through a literature review. The analysis found that there was a risk of the policy's focus deviating from school and educational issues, as multiple policymakers pursued diverse economic and social goals using school farms. Additionally, policy effects at the target level could differ from policymaker goals depending on each school's context, and interaction among policy implementers and various interest groups like civic organizations, experts, and media was insufficient.

Kyla D. Scherr, Mary A. Jamieson · Basic and Applied Ecology · United States (Michigan)

This three-year study investigated environmental factors influencing strawberry productivity for two cultivars at ten farms across a rural-urban gradient in Michigan, USA. It found no direct effect of urbanization on strawberry production or fruit pathogen and pest damage, but temperature significantly influenced crop productivity, with cooler rural and warmer urban temperatures limiting fruit number. While no relationship was found between urbanization and overall arthropod pest, predator, or pollinator abundances, Vespidae abundance was positively associated with urbanization, and Araneae abundance was negatively associated.

Christina Ergas · · United States

This chapter explores urban ecovillages in the United States, highlighting challenges faced by ecovillagers in a neoliberal context. It examines cultural conflicts between sustainability and consumer culture, and points out the exclusive, upper-class, white nature of the local food movement in the US. Monetary and time constraints have made local organic food an elite phenomenon, often cited as a first step to gentrification in urban communities.

Zachary Burt, C. Shambu Prasad, Pay Drechsel, Isha Ray · Journal of Water Sanitation and Hygiene for Development · India (Karnataka)

A preference-ranking model was developed to understand the acceptance of fecal sludge-derived fertilizer (FSF) in Karnataka, India, by modeling farmowners and farmworkers separately. The study found that farmers willing to use FSF prefer to conceal its origins from workers and their caste group, especially caste-adhering, vegetarian farmowners. Workers were open to FSF if it resembled cow manure, revealing that the waste economy in rural India is shaped by unacknowledged caste hierarchies and practices.

Chammi P. Attanayake, Ganga M. Hettiarachchi, Mónica Palomo, Gary M. Pierzynski, Blanca Calderón · ACS Agricultural Science & Technology · United States

The effect of limestone and composted manure on lead (Pb) in vegetables and Pb bioaccessibility was assessed in a contaminated urban garden (total Pb ~200 mg kg⁻¹). Amendments did not affect Pb in vegetables or Pb bioaccessibility. Peeling reduced Pb concentration in radish by half, and removing surface dust reduced Pb in leafy vegetables by 40-50%. Daily Pb intake from consuming lettuce and carrot/beetroot from this garden was approximately 1.5 times higher than the interim reference level proposed by the U.S. Food and Drug Administration.

Maria Elena Peralta-Culcay, Hugo Alberto Cedillo-Tapia, Alfonso Suárez-Tapia · Dialnet (Universidad de la Rioja) · Ecuador (Cuenca)

This research characterized the technological use among small (500-1000 m2) and medium (1000-3000 m2) peri-urban horticultural producers in San Joaquín, Baños, and Sayausí, Cuenca, Ecuador, using a survey. The survey found that most production is sold in local markets, following an ancestral system with some additional technology. The identified technological efficiency was at a medium level (3 on a scale of 1 to 5), indicating a technological deficit.

Xingjia Wang, Wenbo Li, Dongyan Wang, Songze Wu, Zhuoran Yan, Jiaqi Han · Ecological Indicators · China

A 'trinity' assessment method was developed to evaluate heavy-metal contamination in peri-urban soil–crop systems in Northeast China, covering total, available, and accumulated heavy metals. While traditional methods indicated less contamination, the trinity method revealed spatial clustering of heavy-metal contamination in cultivated lands caused by urbanization and industrialization, and a decreasing urban–rural trend in contaminated areas, particularly in transition zones.

Ramón Antonio Mosquera Mena, Yolvi Prada Millán · Universidad Nacional Abierta y a Distancia eBooks · Colombia

Urban and peri-urban agriculture in Colombia offers benefits such as alleviating food insecurity and creating jobs, but currently lacks government policies to support these processes. This paper contextualizes relevant experiences and technical tools for implementing agroecological orchards, emphasizing environmental and social sensitivity. It also notes that agricultural research in Colombia is still emerging, requiring more applied research for technological development to benefit communities and farmers.

Juliana Ojochide Olori, Ogechi Cordelia Nwahia, F. Siewe · Agricultural Social Economic Journal · Nigeria (Abuja)

A study analyzed savings mobilization for poverty alleviation among 185 peri-urban farming households in Kwali and Bwari Area Councils, Abuja, Nigeria, using cross-sectional primary data. The analysis revealed a poverty incidence of 49%, a poverty depth of 28%, and a poverty severity of 56% among the households. Findings indicated that primary occupation and education reduced the likelihood of not being poor but increased the likelihood of being very poor.

Rafael Carvalho Machado, Sieglinde Kindl Da Cunha · Waste Management & Research The Journal for a Sustainable Circular Economy · Brazil (Curitiba)

This study investigated Curitiba, Brazil's Urban Agriculture Program (UAP) and its decentralized composting strategy, which aimed to close the agricultural loop within city bounds. Despite training 24 urban farmer communities in composting techniques, the program was unable to achieve this goal. The research, based on secondary data review, interviews, and participatory observation, identified cultural barriers and conflicts among actor roles within the UAP that hindered the adoption of composting practices.

Margareth Margareth, Oekan S. Abdoellah, Martha Fani Cahyandito, Kinanti Indah Safitri · Prosiding Seminar Nasional Fakultas Pertanian UNS · Indonesia (Bandung)

This qualitative study examines the implementation of urban farming in Bandung City, Indonesia, from a political ecology perspective, focusing on market, service, and institutional interactions, and product marketing chains. The research identifies policy failures, where city government agricultural policies were insufficient to meet residents' food needs, necessitating top-down urban farming innovations. It also notes market failures due to public dissatisfaction with available products, driving bottom-up urban farming initiatives by independent organizations. Funding sources and operational cost efficiency strategies differ between government-led and independent urban farming efforts.

Per-Anders Langendahl · Frontiers in Sustainable Cities · Global

This paper investigates the politics of smart farming expectations in urban environments, conducting exploratory case study research on early smart farming initiatives in Sweden. It explores the politics of knowledge claims at the project level and their performativity in envisioning more sustainable urban futures. The findings suggest that smart farming at the level of individual projects gives the appearance of change, but at the same time, it produces more of the same.

Damian Maye, Paul Swagemakers, J.S.C. Wiskerke, Heidrun Moschitz, James Kirwan, Ingrid Jahrl · European Urban and Regional Studies · Europe

This study utilized the 'sustainable innovation journeys' concept to trace urban food initiatives in Rotterdam (Netherlands), Vigo (Spain), and Zurich (Switzerland) over a six-year period from 2013 to 2018. While micro-level innovation practices can induce sustainability shifts, particularly when aligned with policy interests, the study also observed potentially negative impacts due to a lack of alignment at the initiative or city-region levels.

Mun Gi Hong, Bo Eun Nam · Journal of Character Education and Research · South Korea

This study analyzed the suitability of G National University's campus as an educational site for ecological and character education for elementary students. The campus had a green space ratio of approximately 40% and 120 woody plant species. However, vulnerabilities in plant diversity were identified, including a bias towards certain species like oak and azalea, and multiple species concentrated in small numbers. A critical finding was the overlapping flowering and fruiting seasons for most species, which could negatively impact the ecology of wild animals like insects and birds that rely on these resources.

Camila Garcia Fernandes de Souza Margem, Néliton Marques da Sílva · Cadernos Metrópole · Brazil (Manaus)

This article analyzed the feasibility of implementing urban agriculture (UA) on idle land within the Tarumã – Ponta Negra Environmental Protection Area in Manaus, Brazil, as a tool for territorial governance and urban planning. Semi-structured interviews and card sorting techniques were applied to the target population. The study found that the use of idle land for UA is not envisioned as a territorial governance instrument, a situation exacerbated by municipal authorities hindering the legitimization of bills for such land use.

Sam Ramsden · Local Environment · United Kingdom (England)

This article analyzes a charity-led community gardening project in a disadvantaged northern English community, which operated for three years with external funding. While it successfully engaged marginalized people, leading to increased skills, confidence, reduced isolation, and improved wellbeing, the project faced significant challenges requiring professional management. Crucially, after the funding ended, the community garden's future was fragile, and the long-term sustainability of outcomes for marginalized participants was vulnerable due to economic viability issues.