Research & reports

Ndeyapo Nickanor, Lawrence N. Kazembe, Jonathan Crush · · Namibia

A household survey of 853 households in Namibia's Oshakati-Ongwediva-Ondangwa (OOO) urban corridor found 77% household food insecurity and a mean dietary diversity of less than 5. The most common coping strategies were relying on less preferred and less expensive foods (67%) and rural-urban food transfers (55%). Urban agriculture was found to be very limited in this region.

Stella Kabiri, Molly Allen, Judith Tomma Okuonzia, Beatrice Akello, Rebecca Ssabaganzi, Drake N. Mubiru · Open Research Africa · Uganda

This study investigated the extent of wetland loss and encroachment by urban agriculture in Wakiso and Kampala, Uganda, over 30 years from 1986 to 2016. Using field surveys, Landsat, and MODIS NDVI data, the analysis found that 72,828 ha (73%) of Wakiso-Kampala wetlands were lost, while agricultural areas doubled. Of this, 16,488 ha (23%) were converted from wetlands, with all cultivated agriculture in Kampala occurring in wetlands and 73% in Wakiso.

Swarna Devi Palanivelu, Nur Amira Zainul Armir, Amalia Zulkifli, Ainul Hafiza Abdul Hair, Kushairi Mohd Salleh, Keith Lindsey, Muhamad Hafiz Che Othman, Sarani Zakaria · Polymers · Global

This review discusses the potentials and limitations of hydrogel in urban agriculture. While hydrogel has been introduced in urban agriculture over the past few decades, its application is still being explored regarding hydrogel types, structure, physical and chemical properties, changes due to external factors, and suitability for different plant species. The study presents the current state of knowledge on hydrogel production methods, characteristics, advantages, and limitations.

Susan Anne Mansel Fitzgerald · · Cuba

This chapter reviews various perspectives on urban agriculture in Havana, Cuba, focusing on farm types, food access, and cultural expressions. It highlights that research also addresses the hierarchies and power struggles surrounding urban agriculture sites and their integration into land-management systems. The study advocates for understanding the rhythms of everyday life to deepen insights into these sites.

Shawn Bodden · City · Hungary (Budapest)

This essay reflected on the everyday political work of community projects to open up space for new possibilities of living with difference within hostile political environments, drawing on Doreen Massey's ideas of space. Through the case of the Auróra community center in Budapest, Hungary, and its members' community garden project, it examined the mundane and local techniques community groups use to construct better possible futures. The analysis suggested the importance of analyzing the situated and ongoing "terms of engagement" through which people open up, or close down, better possible spaces and ways of living with difference.

Aisling Bailey, Jonathan Kingsley · Land · Australia (Melbourne)

This qualitative study explored perceptions of benefits and challenges in six urban community and allotment gardens in Melbourne, Australia, through semi-structured interviews with 23 participants. Findings identified perceived benefits and demographic patterns, but also highlighted challenges to participation due to insecurity around ongoing land access. The gardens were perceived to contribute to social and environmental wellbeing.

Ana Zazo Moratalla, Alejandro Orellana-McBride, Claudia Cerda-Inostroza · · Chile

A study investigated how Chilean urban planning has conceived productive agriculture within urban limits, analyzing the evolution of territorial planning instruments in five Chilean cases. While agriculture was once conceived as an urban use, changes in Chilean legislation have led to this activity being conceived as transitory and in fallow, inevitably transforming into other more profitable urban uses.

Imen Bendjemila, Salah Chaouche · Prostor : znanstveni časopis za arhitekturu i urbanizam · Algeria

This study investigated urban growth and urbanization in N'Gaous, Algeria, over the last 60 years, using an analytical approach and Geographic Information Systems to assess the agronomic potential of soils. It found that N'Gaous experienced significant urban sprawl, with its land area expanding over ten times and population increasing more than six times, leading to serious issues for peri-urban orchards. The study quantified and monitored the agricultural potential consumed by construction, highlighting the negative impact of urban expansion on agricultural land.

Megan Marshall · Journal of Agriculture Food Systems and Community Development · Global

"A Recipe for Gentrification" is an edited volume exploring the complex relationship between intent and impact at the intersection of alternative food systems and urban development. The book aims to unpack how food systems can both drive and resist gentrification. It shows that well-intentioned efforts to increase food access in a neighborhood can be an early initiator of gentrification, and urban agriculture and public green spaces are frequently co-opted for development efforts.

Angie Sassano, Christopher Mayes, Yin Paradies · Urban Policy and Research · Australia

In Australia, COVID-19 accelerated reliance on resiliency for post-pandemic urban recovery. This study examined the use of resilience in urban agriculture proposals for cities after COVID-19, drawing on critical literature. It argues that the current pandemic conditions for urban agriculture risk perpetuating urban colonial governmentality. The paper calls for a rethinking of urban agriculture for future cities by radically disrupting the foundational colonial logics of urban spatiality.

Anna Paltseva, Zhongqi Cheng, Murray B. McBride, Maha Deeb, Sara Perl Egendorf, Peter M. Groffman · Frontiers in Ecology and Evolution · Global

This synthesis paper summarizes current scientific knowledge on lead (Pb) contamination in urban garden soils and provides clear recommendations for assessing actual health risks and limiting exposure. Urban garden soils often contain elevated levels of Pb, mainly from legacy sources, which is a main barrier for urban gardening. Amendments are noted as unreliable for treating contaminated soils to reduce risk, as they do not always make contaminants less harmful.

Amy Trauger · · Global

The contemporary industrial food system is problematic, producing diverse foods for a small elite and replicating past labor injustices rooted in colonialism. Urban agriculture is a growing global trend and is expected to be the future of food production. The future of food will also diversify what we eat, including aquaponic tilapia, sprouts, algae, fungus and yeast-derived foods, and imitation meats.

Monika Egerer, Brenda B. Lin · CABI Reviews · Global

This review evaluated ecosystem services (ES) within urban agriculture (UA) systems and the trade-offs between these services. Urban agriculture provides many benefits and environmental services such as food provision, social cohesion, and climate regulation. However, it was shown that management decisions can create trade-offs between ecosystem services, where an increase in one service may potentially reduce the system's ability to provide another service at a desired level.

Abdulaziz I. Almulhim, Patrick Brandful Cobbinah · International Journal of Sustainable Development & World Ecology · Saudi Arabia

This article reviews literature on urbanization and its implications for the urban environment in Global South cities, discussing eight implications of the urbanization-environmental conundrum with cases from Saudi Arabian cities. Findings indicate that the sustainable development agenda in Saudi Arabian cities is skewed towards socio-economic development with limited focus on environmental issues. This situation is threatening the sustainability of rapidly urbanizing cities.

Nini Sané, Malick Mbengué, Amandine Laffite, Serge Stoll, John Poté, Philippe Le Coustumer · Water · Global

This study developed a wastewater treatment plant prototype coupled with Moringa oleifera seeds to reduce fecal indicator bacteria and antibiotic-resistant bacteria in domestic wastewater. The prototype alone reduced bacteria by 99.34%. The addition of Moringa oleifera seeds achieved high removal rates for E. coli (36.6–78.8%), fecal coliform (28.3–84.6%), Vibrio cholera (35.3–95.6%), and total flora (32.1–92.4%). For antibiotic-resistant bacteria, removal rates were up to 98% for E. coli and fecal coliform, 100% for Vibrio cholera, and 91.96% for total flora.

Giulia Caterina Verga, Ahmed Z. Khan · Frontiers in Built Environment · Belgium (Brussels)

This study examined spatial factors fostering or hampering the embedding of urban circularity practices (UCPs) in the Brussels Capital Region (BCR) through a literature review and case-study research. It showed that access to spaces and land emerges as one of the most recurrent barriers to embedding UCPs. Beyond real estate prices, frictions in political agendas where the need for housing, productive spaces, urban agriculture land, and green-blue infrastructures compete for the same limited space also contribute to this issue.

Ilona Liliána Birtalan, Imre Fertő, Ágnes Neulinger, József Rácz, Attila Oláh · BMC Public Health · Hungary

This study examined situational and engagement-related work difficulties for Community Supported Agriculture (CSA) farmers in Hungary, using interpretive phenomenology and semi-structured interviews. The research found that new modes of consumer-producer connectivity create novel issues for farmers, leading to three experiential themes: conflicted autonomy, the pressure of boxes, and social overload. These difficulties are rooted in the economic characteristics of alternative agriculture and structural conditions that require conflicting farmer roles. The study highlights the health and wellbeing costs of sustainable farming, noting that farmers often lack the time, experience, or skills for new producer-consumer connections.

Annie Stéphanie Nana, Timo Falkenberg, Andrea Rechenburg, Annet Adong, Anne Ayo, Pierre Nbendah, Christian Borgemeister · Agriculture · Cameroon

This study investigated factors influencing farming practices and disease prevalence among 130 vegetable producers in the lowlands of Yaoundé, Cameroon, through a cross-sectional survey. Education level and farm size were positively associated with overall fertilizer use, while pesticide usage was positively associated with years cultivated but negatively with land ownership. Waterborne disease prevalence was linked to education level, and malaria prevalence to farmer gender. The location of cultivated areas significantly influenced reporting malaria and headaches, concluding that despite associated health risks, vegetable production is necessary for farmers’ livelihoods.

Bikram Pratim Bhuyan, Ravi Tomar, Amar Ramdane-Chérif · Sustainability · Global

An extensive systematic review of knowledge representation techniques used in smart agriculture, specifically in the urban agricultural domain, was conducted. The review found that spatial-temporal characteristics were rarely approached, a generalized representation technique to include all agricultural domains remains an issue, and a proper validation technique was missing in such ontologies.

Noëllie W. Kpoda, Hamidatu S. Darimani, Adama Ouéda, Idrissa Ouédraogo, Gustave B. Kabré · Agricultural Sciences · Burkina Faso (Ouagadougou)

This study evaluated the risk of parasitic infection among vegetable producers in Ouagadougou, Burkina Faso, who use polluted water, employing a quantitative microbiological risk assessment method. Protozoa and helminths from 9 species were detected in irrigation water, with Ancylostoma sp. eggs being common and severe across all water types. Contamination risk was higher for groups using raw wastewater than for those using well water, and halved for those using treated wastewater; however, regardless of water type, gardeners had an approximate 9.83 × 10−1 pppy probability of Ancylostoma sp. infection.

April M. Roggio, Jason Evans · Sustainability · Global

Participatory Guarantee Systems (PGS) are locally-rooted agroecological governance mechanisms that have garnered interest globally. However, there is little evidence of their development in the United States, where community supported agriculture (CSA) and farmer's markets grew instead, though many of these mechanisms failed to sustain interest and support. This study explores factors driving PGS creation in other global regions and identifies factors shaping a different trajectory for local agriculture in the United States.

Laura Boluspayeva, Monika Jakubus, W. Spychalski, Akhan Abzhalelov, Yertas Bitmanov · International Journal of Environmental Research and Public Health · Kazakhstan (Oskemen)

This study investigated heavy metal contamination in soils and vegetables due to the metallurgic industry in industrial areas of Oskemen, Republic of Kazakhstan. The greatest amounts of metals were found in soils and vegetables from the industrial zone, with the lowest in the suburban zone. Lead concentrations exceeded WHO/FAO standards in all analyzed vegetable samples, leading to the conclusion that consumption of vegetables cultivated in industrial areas should be restricted due to health risks.

Gordon Prain, Dávid Simon, Jess Halliday, Pay Drechsel · Frontiers in Sustainable Food Systems · Global South

Urban and peri-urban agriculture (UPA) in the Global South faces challenges such as limited recognition, land conversion, and water pollution, which threaten its potential for urban resilience. Innovations in urban governance are required to integrate food systems into urban planning through food mapping and multisectoral platforms.

Anithadevi Kenday Sivaram, Logeshwaran Panneerselvan, Aravind Surapaneni, Elliot Lee, Kurunthachalam Kannan, Mallavarapu Megharaj · Environmental Advances · Australia

This study assessed 19 commercially available composts, garden soils, and potting mixes in Australia for 38 per- and polyfluoroalkyl substances (PFAS). Total PFAS concentrations ranged from 1.26 to 11.84 µg kg−1 (dry weight), with total perfluorinated carboxylic acids (ƩPFCAs) being higher than perfluoroalkyl sulfonic acids (PFSAs). The total oxidizable precursor assay (TOPA) showed an increase in short-chain ƩPFCAs (0.48 to 7.63 µg kg−1) in composts and potting mixes, indicating transformation of PFCAs precursors. The measured concentrations of short-chain PFCAs in soil substrates have the potential to contribute to plant uptake and food chain transfer of PFAS to humans.

Denise Misleh · The AAG Review of Books · Global

Organic stores, trendy coffee shops, and food initiatives generally associated with the alternative food movement, such as farmer's markets and community gardens, have become a clear symbol.