Research & reports

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.

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.

Paul D. Jensen, Caroline Orfila · Food Security · United Kingdom

This case study used publicly available data to spatially analyze the urban food system of Leeds, UK, assessing its food security and resilience. The study found that while Leeds has a significant food production and provision system, it is not food secure in terms of providing sufficient energy or macronutrients, nor does it function equitably for all residents. Improving the system, including through urban farming, would require high investment, multi-sector cooperation, and strong governance.

André Ruoppolo Biazoti, Angélica Campos Nakamura, Gustavo Nagib, Vitória Oliveira Pereira de Souza Leão, Giulia Giacchè, Thaís Mauad · Sustainability · Brazil (São Paulo)

Amid a COVID-19 outbreak that caused 15,587 deaths in São Paulo city through December 2020, this study examined effects on urban agriculture from April to August 2020, drawing on two government surveys (2,100 farmers in São Paulo state, 148 in São Paulo city) and two qualitative surveys of volunteers from ten community gardens and seven urban farmers. Fifty percent of farmers reported being affected by the pandemic through drops in sales, particularly those who depended on intermediaries, and 22% said obtaining inputs had become difficult. No municipal support was provided to urban agriculture in São Paulo, and pre-existing problems worsened; activity in community gardens declined, though none closed permanently.

Valéria Borges Yonegura, Henrique Manoel da Silva · Confins · Brazil

A study of the Tatuquara neighbourhood and surrounding areas of Curitiba, Brazil, combining bibliographic review, historical-geographic analysis, and interviews with community gardeners (horteiros) conducted over 2017-2018, found that urban gardens improved local life, landscape and community safety and fostered topophilia and place attachment. Despite being used in city marketing, the practice's continuity is threatened by the possible end of a partnership with the electric utility and by pressure from the real-estate market.

Takeshi So · The Japanese Journal of Real Estate Sciences · Japan

This study discusses urban agriculture in Japan from three perspectives: suburban farming, urban farming, and isolated farming operations within urban areas. Despite its historical impact on urban planning, urban farmland has dramatically decreased and currently hinders real estate business and new business creation. It is suggested that economic rationality and public interest should be prioritized, and tax incentives for urban farmland should be reconsidered in a stepwise manner.

Kheir Al‐Kodmany · · Global

A book chapter arguing that cities will need internal food production to meet demand from growing urban populations and to avoid congestion, pollution and unaffordable food prices, and examining vertical farming — using hydroponics, aeroponics and aquaponics — as an approach suited to urban settings where land is limited and expensive. After reviewing these technologies and project prototypes, the chapter closes by stating that economic feasibility, building codes and regulations, and a lack of expertise remain major obstacles to implementing the vertical farm.

오익근, 서정아, 장승옥 · 한국지역개발학회지 · South Korea

A focus group interview with young urban farmers in Daegu, South Korea, explored job creation through urban farming. Participants perceived farming as physically demanding and unrewarding, despite seeing urban farming as a promising industry for job creation. They also noted a lack of national support policies and difficulties in participation. A contradiction was identified between the young farmers' desire to adopt labor-saving new technologies and the goal of creating jobs through traditional farming.

Milagros de la Caridad Mata Varela, Johana Meza Salvatierra, Ana Yilian Santana Mata · DOAJ (DOAJ: Directory of Open Access Journals) · Global

This research evaluated investment project management in urban agriculture through its life cycle, applying eighteen indicators and a management index. The study concluded that an agroecological farm development project exhibited economic inefficiency during its first two years of operation due to an imbalance between income and expenses, preventing high management values.

Lemi Gonfa · · Africa

This paper reviewed the role of urban agriculture in socio-economic and environmental sustainability in Africa, drawing on theoretical and empirical literature. While urban agriculture is recognized for job creation, improved diet, and environmental benefits like urban greenery and biodiversity, challenges such as difficult land access, lack of experience, financial support, training, and credit facilities, as well as low land productivity, animal grazing, and theft, were identified. These factors present potential negative externalities and hinder the development of urban agriculture.

Shawna Holmes · Canadian Food Studies / La Revue canadienne des études sur l alimentation · Canada

Interviews with school food environment staff across Canada examined how provincial nutrition regulation changes affected food procurement. While the regulations opened opportunities to improve nutrient content and involve local producers or school gardens, some schools struggled to procure nutritionally compliant food because of higher costs of transporting produce to rural, remote or northern communities and logistical problems such as spoilage. Regulations improved food environments in some schools, but others still require more support.

Will Thompson · Plinth · United Kingdom

Published 12 June 2019, this piece estimates that UK charities spend around 15.8 million hours a year on grant monitoring reports, roughly £204 million in staff time. It assumes an average of 40 hours per grant, about 391,280 grants distributed per year and an average grant of around £50,000. Charities with at least one full-time-equivalent member of staff typically juggle five to ten different funders, each asking for similar information in different formats at different times, so the administrative load accumulates without producing learning. The estimate draws on interviews with ten people at small and medium charities reporting to six local authorities and more than fifty funders.

Mohammad Rondhi, Pravitasari Anjar Pratiwi, Vivi Trisna Handini, Aryo Fajar Sunartomo, Subhan Arif Budiman · Land · Indonesia (East Java)

This paper investigated the inter-relationship between land economic value and agricultural land conversion (ALC) in East Java, Indonesia. It calculated the land economic value for agricultural and non-agricultural (housing) uses in two areas: a peri-urban agricultural area facing rapid urbanization and a rural agricultural area with zero ALC. Results showed that agricultural land yielded a higher economic benefit in rural areas, whereas in urban areas, housing yielded a value seven times higher than agricultural land.

Cuthbert Majoni, Deliwe Tembachako, Anyway Katanha · RePEc: Research Papers in Economics · Zimbabwe

This study was conducted in Bindura urban area, Zimbabwe, to evaluate the viability of urban quail farming, interviewing 40 urban quail farmers selected via snowball sampling and 10 key informants using semi-structured guides. Key challenges highlighted included inadequate housing facilities, insufficient space, theft, predation, inadequate knowledge, market price fluctuations, inability to access credit, and misconceptions in urban agriculture policies. Despite these challenges, urban quail farming showed potential to boost family income and reduce poverty to some extent.

Pascale Scheromm, Christophe‐Toussaint Soulard · Geographical Research · France

This paper provides a spatial analysis of agriculture in three mid-sized French cities, focusing on professional farms. It confirms the existence of significant agricultural spaces within cities and the persistence of field-based, market-oriented agriculture. Key determinants in the observed dynamics include the cities' geographies, the impact of land speculation and urbanization on farmers, and the resistance and adaptation processes implemented by some farmers.

Hok Bun Ku, Yan Hairong · · China

China's food-security crisis, caused by unsustainable development, has diminished the country's farmland through large-scale land acquisitions, ecological restoration projects, agricultural structural adjustments, natural disasters, and pollution, among other factors. This chapter argues that local producers and consumers are not passively waiting for government policy changes but, organized by green social workers, are actively searching for alternatives to achieve self-sufficiency and food security through a new initiative called the "rural–urban alliance." Framed within the social economy perspective advocated by green social work as a way to rethink economic development and consider alternatives to capitalism, the rural–urban alliance and community-supported agriculture (CSA) are positioned as a potential new route for China's sustainable development that could change the pathway of economic development forms that cause inequality and undermine livelihoods. This is a proposed, forward-looking argument, however; the abstract does not report empirical evidence that CSA or the rural–urban alliance have actually mitigated the food-security crisis.

Michelle Glowa · · United States (San Francisco)

In the San Francisco region, highly competitive land markets increasingly force landowners to use properties for purposes other than gardening, despite the popularity of urban agriculture. This situation compels gardeners to develop strategies to gain and maintain land access, linking gardening to broader land politics and urban design. The chapter explores how gardeners influence space production and property institutions.

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

This study examined changes in urban agriculture in Hyogo Prefecture, Japan, since 1990, finding a weakening of the agricultural management base. While the decline in productive green space and full-time farmers was limited, engagement in agriculture-related businesses, excluding direct sales, was not widespread. The preservation of productive green spaces in some cities remains a challenge for future land use planning.

Nerea Morán Alonso, Ícaro Obeso Muñiz, Agustín Hernández Aja, Felipe Fernández García · Moravian Geographical Reports · Spain

This paper analyzed the evolution of peri-urban agriculture in Spain's Madrid and Oviedo metropolitan areas to identify revitalization opportunities. Using aerial images and cartographic bases, the study found that peri-urban agriculture has suffered from urban occupation and internal changes in crops and agricultural uses, experiencing a process of decline. Innovative initiatives are explored as potential revitalization opportunities.

Stephanie Stephanie Kartika Lestari · · Europe

A case study of two urban farming organizations in the Netherlands developed a set of indicators to assess factors hampering the diffusion of radical innovation. Urban farming is characterized here as a radical innovation aiming for fresh and sustainable food supply in urban areas that has yet to achieve large-scale diffusion, and the study proposes a non-static conceptual model that lets commercial firms rationally assess barriers to diffusion and revisit their niche strategies as internal and external conditions change.

Fatemeh Kalantari, Osman Mohd Tahir, Raheleh Akbari Joni, Ezaz Fatemi · Journal of Landscape Ecology · Global

This paper critically reviews 60 published documents on vertical farming — cultivating plants and livestock on vertically inclined surfaces such as skyscrapers in land-scarce urban areas — assessing it against environmental, social, and economic dimensions of sustainability, and notes that published critical reviews on the topic remain scarce. Economic viability is named as one of the challenges considered alongside environmental and social factors, but the abstract does not present specific cost, revenue, or failure data to support this; it concludes, without citing supporting figures, that vertical farming can be "potentially beneficial" for food production, quality, safety, and food security.

A. Husni Malian, Masdjidin Siregar · Forum penelitian Agro Ekonomi · Indonesia

This paper discusses the dwindling role of peri-urban agriculture in Indonesia due to urban development policies favoring manufacturing and service sectors. The economic crisis and policy changes had different effects on farmers of leafy vegetables, orchids, and ornamental plants. Increased fertilizer prices and wage rates, coupled with decreased demand for orchids and ornamental plants in 1999, reduced farmers' income. Conversely, increased demand for leafy vegetables led to more intensive land use, neglecting health and environmental concerns.

Rusida Rusida · Plano Madani : Jurnal Perencanaan Wilayah dan Kota · Indonesia (Belopa)

A study in the urban area of Belopa, Indonesia, assessed the potential for urban agriculture, identifying suitable land for various crop types and key commodities. However, the research found that extensive housing development, particularly on the outskirts, and limited land availability mean not all land can be developed for urban agriculture. Urban agriculture supports food security, and public and government perceptions influence future land plans.

Sandy Smith‐Nonini · Anthropology in Action · United States

This article discusses lessons learned from Eco-Cycle, a social enterprise supporting sustainability education in central North Carolina, U.S.A., since 2011. Eco-Cycle faced the challenge that many social justice-oriented green initiatives emulating urban agriculture models are grant-dependent in early years and achieve economic sustainability with difficulty. However, this non-profit co-op of upcycler crafters and vintage vendors grew from the production and marketing of upcycled rain barrels, pursuing economic sustainability through a social enterprise approach.

Joshua Zeunert · UNSWorks (University of New South Wales, Sydney, Australia) · Australia

Urban public green spaces typically require external budgets for maintenance, with most projects costing municipal authorities more money than they generate, making them economically unproductive. For instance, the Adelaide Parklands annually costs AU$9 million for maintenance while generating less than AU$1 million in income. Maintenance spending on public green spaces in the USA, UK, and Australia has been declining, a trend accelerated since the 2008 global financial crisis.