Research & reports

Ana Carla Alves Gomes, Maria Lúcia Brito da Cruz · Revista Campo-Território · Brazil

This study investigated the spatial distribution of Urban Agriculture (UA) in Fortaleza, Brazil, particularly in the Lagoa Redonda neighborhood, and the permanence of these gardens amidst territorial disputes over urban space. Using bibliographic and secondary data surveys, site visits, and geoprocessing techniques, it analyzed the feasibility of UA reproduction and the implementation of specific policies for the activity. The study points to governance challenges, specifically territorial disputes concerning the permanence of urban agriculture in urban spaces.

Stefan Staehle · sub\urban zeitschrift für kritische stadtforschung · Global

This study offers an alternative perspective on the critical practice of urban gardening, highlighting the ambivalence of the phenomenon. Specifically, the decoupling of social and artistic critique is shown to lead to a programmatic weakening of initiatives and their co-optation by neoliberal urban policies. This can reverse the critical practice of spatial appropriation into its opposite.

Andrea Baier, Christa Müller · · Germany

This chapter discusses the results of semi-structured face-to-face interviews conducted in 2016 with activists in three urban community gardens in Bremen, Cologne, and Kassel, Germany. The study focused on the relationship between urban projects and municipal administrations. It showed that initiatives taken by grassroots activists to form collaborations with administrative actors are limited, though the traditional role of citizens can be extended in new local partnerships.

Jeroen Schütt, Bas Amelung · · Europe

This research, conducted by the Science Shop of Wageningen University and Research, estimated the monetary value of ecosystem services in the Lutkemeerpolder, Amsterdam, which is slated for conversion into a business park. The study identified food production, air purification, recreation, and the effect of greenery on housing prices as key services, valuing them at 1.5 to 8.6 million euros per year. These ecosystem service values were not considered in the original decision-making twenty years ago, leading to a recommendation to reconsider the development plan.

Luca Sára Bródy, Mandy de Wilde · Local Environment · Netherlands (Amsterdam)

Based on a qualitative study of 19 community gardening projects in Amsterdam, this research argues that community gardens function as “controlled space.” Various institutional governance actors, including local government, welfare organizations, green NGOs, and housing associations, exert varied levels of influence and control over the gardens. These relations both impair and enable the civic participation of gardeners, the inclusive potential of gardens, and an alternative, local food provision and distribution.

Adrián H. Hearn, Thaís Mauad, Chris Williams, Luís Fernando Amato‐Lourenço, Guilherme Reis Ranieri · Journal of Urbanism International Research on Placemaking and Urban Sustainability · Australia (Melbourne)

This article analyzed the phenomenon of urban agriculture promotion by real estate developers and community associations in Melbourne and São Paulo. Developers of upmarket condominiums advertise urban agriculture as a purchasable commodity, but the gentrifying effects of these developments deepen rather than alleviate social and environmental ills. In contrast, community projects in four case studies emphasized urban agriculture's ability to confront the long-term neglect of land, employment, and environment.

Amsalu Woldie Yalew · Regional Economic Development Research · Ethiopia

This paper provides an overview of urban agriculture in Ethiopia, synthesizing existing evidence on its role in the overall agricultural sector, urban economy, and urban employment, based on official reports and statistical surveys. Despite scant evidence, urban agriculture shows considerable contributions. However, the review reveals existing gaps in institutional and policy support for urban agriculture.

Mr. Isaiah ACQUAH, Dr.Sc. Joseph Ato FORSON, Dr.Sc. Theresa Yaaba BAAH-ENNUMH · DOAJ (DOAJ: Directory of Open Access Journals) · Ghana

This qualitative exploratory study in Accra Metropolitan Assembly, Ghana, investigated the effect of urban growth and concretization on urban farming households' livelihoods and food security. The study, using interviews and spatial imagery, found that urban farms face challenges due to inadequate land use planning and support, leading to a loss of farmlands. Significant challenges identified include limited farming space, limited resources, continuous increase in buildings, and inadequate education for urban farmers.

Zeinab Abd Elkader, Ahmed Haroun · Fayoum University Journal of Engineering · Egypt

The legislative and executive challenges of roof gardens in new cities in Egypt were clarified. Theoretical studies, including an applied study in Sheikh Zayed City, were presented. The research suggests that while roof gardens offer environmental, social, and economic benefits, challenges exist for their widespread application.

Miaomiao Xie, Manyu Li, Zhaoyang Li, Meng Xu, Yan Chen, Ran Wo, De Tong · Sustainability · China (Beijing)

This study investigated user profiles and landscape service provision in three urban agriculture parks (UAPs) in Beijing, China, based on 345 interviews. Most users had upper-middle incomes and were well-educated, with social connections varying by UAP type. Findings indicated that the scenery service was not adequately supplied, with 31.5% of areas failing to meet demand, suggesting six landscape types require optimization.

Ana Mélice Dias, Teresa Marat-Mendes · Portuguese National Funding Agency for Science, Research and Technology (RCAAP Project by FCT) · Portugal (Lisbon)

In Lisbon's Greater Area, Portugal, the morphological impact of municipal planning instruments (Municipal Master Plans) on urban agriculture was investigated. It was concluded that current planning regulations prioritize leisure and aesthetic solutions for urban agriculture uses, rather than design solutions that address economic growth or ecological diversity.

Ted White · Edward Elgar Publishing eBooks · United States

Non-market sales, barter, trade, donations, and other creative transactions have been integral to Community Supported Agriculture (CSA) since its inception, promoting creativity and new economic thinking due to its advance payment system for unknown harvests. Based on qualitative field research, primarily in the Northeastern United States, this chapter examines the innovative transactions that have enabled CSA and other Community Supported Enterprises (CSEs) to grow. While acknowledging that the 'Community Supported' model has not solved the challenge of providing adequate incomes for producers or attracting diverse participants, the chapter presents evidence of CSA as a vibrant system connecting producers and consumers through creative transactions.

Sam Ramsden · Voluntary Sector Review · United Kingdom

This article explored an externally funded charity-led project in a deprived area of the UK, implementing urban agriculture, community gardening, and household energy activities. The project successfully engaged marginalized people, who strongly voiced outcomes including reduced isolation, improved mental health, and increased resilience and self-reliance. Environmental outcomes were less tangible but included improvements to the local environment and reduced energy usage. However, after the funding finished, marginalized participants were vulnerable to outcomes not being sustained in the long term.

F. Waswa, M. Mwamburi, I. I. C. Wakindiki, Roseline Chemutai · Journal of applied science and environmental management · Kenya

This study focused on soil physicochemical properties and fertility management in Ruiru Sub County, a peri-urban area in Kiambu County, Kenya. Soil samples from ten small contact farms (~0.1 ha) were analyzed, revealing that most farmers were tenants growing leafy vegetables, maintaining soil fertility with organic manures, and performing tillage by hand. These practices signal limitations imposed by small farm size and lack of land ownership, with soil fertility primarily limited by the interaction of soil pH, K, and Ca.

Fanni Bársony · Tér és Társadalom · Hungary

This study examines urban community gardens in Hungary through fieldwork and group interviews. It investigates how these gardens function as urban commons, focusing on community characteristics, resource relationships, and sharing practices. The research concludes that for urban commons, it is insufficient to focus solely on the shared resource and access conditions; the commons must be examined in relation to the operating community.

Mary Njoki Mwaura, Sabina Wangia, Japheth Ododa Origa, Lee Ernest Mbatia Oliver · Journal of Agricultural Extension · Kenya (Nairobi)

This study investigated the influence of urban extension workers' socio-economic characteristics on farmer empowerment in Nairobi County, Kenya, using data from 64 extension workers. While extension workers' characteristics positively influenced the choice of extension methods, explaining 37.2% of farmer empowerment, a significant finding was that 49.9% of extension workers were unaware of adult learning principles (ALPs). The study recommends training extension workers in ALPs and ICT techniques to improve extension methods.

Oso Adeola Abiola · Zenodo (CERN European Organization for Nuclear Research) · South Africa

This review discusses vegetable production in South Africa, focusing on the impacts of root-knot nematodes (Meloidogyne species) on small-scale farming communities. The review highlights that these nematodes are a primary pest, causing delayed crop maturity, reduced yields, poor quality produce, and escalating production costs. This leads to substantial income losses for farmers and the abandonment of community gardens, intensifying challenges for vegetable production and food security.

Fatiha Hakimi, Mohamed Brech · Zenodo (CERN European Organization for Nuclear Research) · Morocco

This study assessed the practices, potentials, and constraints of peri-urban agriculture (PUA) in Rabat Metropolis, Morocco, using field observation, interviews, and surveys with 50 randomly selected farmers. While PUA contributes to economic development, employment, and food supply, the study found significant legal constraints, including the absence of regulating laws and the obligation for some farmers to pay housing taxes. Technical constraints such as insufficient workforce, high labor costs, difficult access to irrigation water, and lack of training also hinder PUA growth.

Maximilian Manderscheid, Valentin Fiala, Bernhard Freyer · Zenodo (CERN European Organization for Nuclear Research) · Global

This report D4.3 describes the status quo analysis and documentation of Edible City Solutions (ECS). Over 300 ECS were identified in Berlin and Montevideo, and online research was conducted in Carthage and Lomé, after which a total of 84 ECS were documented in detail using a mixed-method approach (online survey, interviews, workshops, etc.). Most documented ECS take the form of urban gardening and focus on social benefits like providing education and fostering social cohesion, but the report does not detail specific challenges or limitations regarding governance.

Justine Lindemann · New York University Press eBooks · United States (Cleveland)

This chapter explores how gentrification in Cleveland, Ohio, impacts Black urban farmers' and gardeners' access to land in disinvested neighborhoods. It examines the ancillary effects of development on alternative land reuse efforts. The study highlights that despite a seemingly endless supply of vacant lots, gentrification negatively affects land access for these communities.

Hayford Mensah Ayerakwa, Fred Mawunyo Dzanku, Daniel Bruce Sarpong · Agricultural and Food Economics · Ghana

Using a sample of 2,004 households in a small and a medium-sized city in Ghana, this study examined urban households' participation in agriculture by disentangling it according to the geography of production — urban versus rural areas — and its implications for food security. The analysis found no evidence that participation in agriculture in general was related to the food security of urban households in this sample. However, urbanites who produced food in both urban and rural areas had better food security in the medium-sized city.

Salsabila Nur A, Ir. Irham, S.P. Anung Pranyoto · · Indonesia

This descriptive study, using purposively sampled primary data from 30 farmers in Danurejan sub-district and 25 farmers in Jetis sub-district, Yogyakarta City, Indonesia, examines the contribution of urban farming income to household income through farm income analysis, a one-sample t-test, household income analysis, and multiple linear regression. Urban farming produced a positive annual income (Rp 112,883/year), but its contribution to total household income (Rp 46,579,988/year) was only 0.24%. This low share was attributed to the very small quantity of crops cultivated per household — for example, 4 polybags/year of bird's-eye chili, 10 polybags/year of large chili, and 11 polybags/year of mustard greens. Farmer age, education level, quantity of crops grown, and seedling price were the factors significantly affecting urban farming income.

N. K. Fidelis, M. K. Winnie, W. K. Joyce, K. Juliana, Kotey Ashie Daniel, M. Scholastica, Mbijjiwe Jacob Kathure Catherine · Journal of Engineering in Agriculture and the Environment · Africa

In Nairobi, Kenya, stratified random sampling, field surveys and questionnaires were used to identify existing water sources and wastewater treatment systems and their reuse status, in an investigation of the potential for eco-friendly urban and peri-urban agriculture (EcoUPA). Of the 300 respondents interviewed, only 66 (22%) reused wastewater, and only 54 of those reused it for crop production. Ninety-eight respondents (33%) wanted information on wastewater treatment systems allowing reuse, and 124 (41%) were willing to pay for a new system. The findings indicate that limited urban water sources constrain the spread of urban and peri-urban agriculture.

Alexey Valerevich Vasilchikov · Eurasian Law Journal · Russia

A study of urban agglomeration development trends in the regions of the Russian Federation, drawing on analyses from various Russian sociological research schools, examines the differentiation between cities — including million-plus cities — competing for natural, demographic, financial, and investment resources. It finds that large agglomerations act as monopolists that in many cases hinder the successful development of medium-sized and especially small Russian cities, further worsening inequality in living standards and quality of life across localities throughout the Russian Federation.

Celina Gómez, Christopher J. Currey, Ryan W. Dickson, Hye‐Ji Kim, Ricardo Hernández, Nadia Sabeh, Rosa E. Raudales, Robin G. Brumfield, Angela Shaw, Adam K. Wilke, Roberto G. López, Stephanie E. Burnett · HortScience · Global

This review discusses the application of controlled environment agriculture (CEA) techniques to urban agriculture (UA), driven by increased market demand for local produce. While CEA offers opportunities for year-round production and resource-use efficiency, significant challenges remain due to the high costs of production in urban settings. The review emphasizes that for urban growers to benefit, studies evaluating CEA for commercial food production must consider economic viability.