Research & reports

Rebecca Kessler · Environmental Health Perspectives · Global

As interest in urban agriculture grows, researchers are working to manage the risks of contaminated urban soils. The focus is on maximizing the benefits of urban gardening while minimizing the potential hazards associated with soil contamination.

Sarah James · Geographical Research · Australia (Sydney)

This paper examined the failure of Sydney's 'green zones' farmland protection policies, which were abandoned due to protests. The failure was attributed to a lack of consultation with Sydney's diverse small-scale farmers, rather than a rejection of farmland protection itself. Farmer interviews suggested that a bottom-up policy-making approach would have been more successful in maintaining farming in peri-urban areas.

Soraya Pourjavid, Hassan Sadighi, Hossein Shabanali Fami · RePEc: Research Papers in Economics · Iran (Tehran)

This study identified constraints affecting urban agriculture in Tehran, Iran, by surveying 320 city dwellers across 22 municipal districts. The most important constraints identified were "high start-up costs" and "lack of knowledge among managers and authorities." Factor analysis revealed seven factors explaining 67.36% of the variance, including financial-economic and technical aspects.

Kirstie Cadger, Thembela Kepe · Development in Practice · Botswana

Challenges facing community garden initiatives among the San of Botswana were analyzed through semi-structured interviews and participant observation in two San communities. The study found that the failure of the gardens related to how the San are treated and how they view their situation as destitute people. Forced resettlement, historical livelihood disruption, and government and NGO policies of development through welfare neglecting genuine empowerment were concluded to be responsible for the limited success of the community gardens.

Robert Garey Stewart, Marcel Korth, Laurenz Langer, Shannon Rafferty, N Rebelo Da Silva · · Global

This paper is a protocol for a systematic review on the impacts of urban agriculture programs on food security and nutrition in low and middle-income countries. It notes potential disadvantages of urban agriculture, including contamination, spread of diseases, depletion of water supplies, soil erosion, and health risks from pesticides. The review aims to identify, appraise, and synthesize evidence on these impacts comprehensively and transparently, given that the existing evidence-base is not well understood.

Josiah Taru, Hardlife Stephen Basure · Russian Journal of Agricultural and Socio-Economic Sciences · Zimbabwe (Harare)

This study applied Norman Long's interface analysis to understand the causes of conflicts and struggles among urban agriculture (UA) actors in Kuwadzana Extension, Harare. Intensified competition for scarce land and water escalated conflicts, particularly in off-plot agriculture due to its contentious nature outside institutional frameworks. Actors with different power bases used them to dispossess and marginalize others. Conflict resolution mechanisms (mediation, litigation, conciliation) often lacked legal binding or institutional backing, tending to generate more disputes.

Àngels Viladomiu Canela · AusArt · Global

This article reviews artistic interventions that address urban land uses and farming methods. These actions, through planting and cultivating, generate spaces for the expression of artistic, political, and social identities, often in urban interstices like abandoned lots or non-urbanized areas. The study identifies these practices as spaces for social critique and ecological activism.

Beaven Utete · Journal of Water Resources and Ocean Science · Zimbabwe

The ecological integrity of the peri-urban Chiraura River system in Zimbabwe was assessed through multivariate analysis of physicochemical parameters and the resident macroinvertebrate community. Monthly collections were conducted over five months from November 2011 to March 2012 at six sites, recording 1209 macroinvertebrates. Unsustainable anthropogenic activities, including industrial, domestic, and urban agricultural activities, were found to affect the water quality of the Chiraura River through run-off and increased effluent.

Douglas Carl Reeser · Development in Practice · Belize

An analysis of an NGO school garden program in two Q'eqchi' Maya communities in southern Belize revealed challenges faced by NGOs. These challenges included issues of legitimacy, cultural appropriateness, self-interest, and constructed conceptions of their target communities, raising questions about the priority between autonomous, healthy communities and the preservation of the NGO program.

Camilo Villagrán Oyarzún, Ken Yan Qiu Sun · Revista de Urbanismo · Chile (Santiago de Chile)

This 2013 study investigated the challenges of integrating urban agriculture into Communal Regulatory Plans in Santiago de Chile. Analyzing two case studies in different metropolitan communes, the research inferred the general state of urban agriculture's inclusion in urban planning. The findings implicitly suggest difficulties in its integration, highlighting the need for improved governance in urban planning to effectively incorporate urban agriculture.

Susana Olivares Reumont, Damarys García Céspedes, Lázaro Lima Cazorla, Israel Saborit Sánchez, Axel Llizo Casals, Pedro Pérez Álvarez · Revista Internacional de Contaminación Ambiental · Cuba (Havana)

This study investigated levels of Cu, Pb, Cd, and Zn in soils and vegetables from 17 urban agriculture farms around the "Calle 100" landfill in Havana, Cuba, during 2006-2007. Findings showed that 35% of soils exceeded typical Cuban agricultural ranges for Zn, and 52% for Pb. Critically, 23% of soils surpassed phytotoxic and international limit levels for Pb, and 12.5% of vegetable samples exceeded Cuban maximum permissible limits for Pb in food for human consumption. The results indicate a need for strict monitoring of horticultural crops in the area due to contamination.

Shazia Iram, Ayesha Zaman, Zaiba Iqbal, Rabia Shabbir · Polish Journal of Environmental Studies · Global

This study screened soil samples from peri-urban agricultural areas to investigate heavy metal contamination and identify heavy metal-tolerant fungi. Results showed that the majority of isolated fungi were resistant to lead (Pb) and chromium (Cr). Among the strains, Aspergillus niger was the most tolerant to Pb with an MIC of 600 mg/l, and Aspergillus flavus was the most tolerant to Cr with an MIC of 400 mg/l.

Terri Evans, Christiana Miewald · Journal of Agriculture Food Systems and Community Development · Global

Community gardens and other local food initiatives are insufficient strategies to replace the quantity and efficiency provided by contemporary globalized food systems for supplying cheap food to urban populations.

David Adams, Alister Scott, Michael Hardman · Geografiska Annaler Series B Human Geography · Global

This article examined how planning practice, exemplified by permaculture and guerrilla gardening case studies, can be rooted in confrontation and legal challenge, hindering innovative practices. The findings confirmed that spatial planning theory is largely "disintegrated" from much contemporary planning and environmental practice and wider sustainability discourses. This suggests that planners and decision-makers' prescribed and constrained management of space can impede practices with significant societal and environmental benefits.

Andrew Butt · Economic Papers A journal of applied economics and policy · Australia

This article reviews changes in farm output and structure in peri-urban regions around Australia's cities. It concludes that farming in these regions is changing differently from other agricultural regions, with productivity centered on a few high-value activities. The majority of peri-urban farming, while potentially providing landscape services, is unable to adjust to changing productivity regimes, creating vulnerabilities for these farming systems.

Lindsey Sarann Hallock · · Global

This paper examines the rise of vertical farms, arguing that they advance the corporate food regime and promote urban elite consumption. It differentiates vertical farms as local food projects that reproduce the capitalist industrial system rather than challenging it, facilitated by devalued built environments and labor surplus in neoliberal cities. The study concludes that these farms reproduce troubling trends in the corporate food regime, signifying capital's ability to standardize food cultivation and incorporate it into factory-like production systems.

Atănăsoaie George Sebastian · Annals - Economy Series · Global

Community Supported Agriculture (CSA) farms are an alternative to conventional agriculture but face numerous policy issues related to product, price, distribution, and promotion. A literature review indicated that farmers need to offer more flexible basket content in terms of quantity and product type, and consumers require information on product preparation and preservation. To offset the negative impact of high prices, measures such as cost reduction, flexible payment rescheduling, and compensation for financial resource deficits are necessary.

Anushiya Shrestha, Rajesh Sada · · Nepal (Kathmandu)

Climate change and its impacts on peri-urban agriculture were investigated in four peri-urban villages in the Kathmandu valley, Nepal. Temperature showed an increasing trend, while rainfall was erratic with no distinct pattern. These changes primarily had negative impacts on agriculture, leading to increased crop pests and diseases and a decline in crop production.

Catherine Closson · · Belgium (Brussels)

A study assessed the job creation potential of urban agriculture in the Brussels-Capital Region of Belgium. Etterbeek residents are struggling to transition from theory to practice. While professional integration has not yet been achieved, the social dynamic around the vegetable gardens is proving effective.

Kibassa, Kimaro, Shemdoe · Scientific Research and Essays · Tanzania (Dar es Salaam)

A study assessing heavy metal concentrations in soils from selected urban agriculture areas in Dar es Salaam, Tanzania, found that zinc, chromium, cadmium, lead, and copper levels in all six investigated sites were within the Tanzania Bureau of Standards permissible limits. The highest values for copper, zinc, and lead were observed in Tazara Mchichani, potentially indicating pollution from surrounding manufacturing industries. Flooding did not appear to influence the distribution of these heavy metals.

Anna di Robilant · McGill Law Journal · Global

Common ownership regimes, such as community gardens and co-operatives in the US, Canada, and Europe, require limiting individual co-owners' ability to freely use resources and exit arrangements to achieve their goals. This creates difficult trade-offs in their design. The article argues that common ownership can foster "equality of autonomy" by providing more equitable access to the means for individual autonomy, but this often necessitates privileging equality of autonomy over full negative freedom.

Afton Halloran, Jakob Magid · Environment and Urbanization · Tanzania (Dar es Salaam)

Urban agriculture in Dar es Salaam, Tanzania, has received little political support from central and local governments over the past 30 years due to its informal status, leading to land insecurity for many urban farmers. The incorporation of urban agriculture into the Dar es Salaam 2012-2032 Master Plan (unapproved as of June 2013) and its legitimization processes were examined. It was noted that legitimization through policy could also further marginalize urban farmers cultivating open spaces within the city.

Corey James Majeika, Raymond P Stockwell, Shawn A Czerniak · Digital WPI · Global

This study conducted 13 in-depth interviews with farmers to assess their perceptions of Freight Farms, a company growing leafy greens and basil in adapted shipping containers. Most farmers doubted the economic feasibility of Freight Farms, questioned its technologies, and noted the lack of organic certification.

Philani Moyo · Journal of Human Ecology · Zimbabwe

This study qualitatively examined the role and contribution of urban agriculture to household food security, employment creation, and income generation among low-income working-class and urban poor households in Bulawayo townships, Zimbabwe. It was found that urban food production significantly contributes to household food access and security, improving dietary diversity and nutritional intake. However, the potential of urban agriculture is constrained by factors including land tenure insecurity, erratic water access, small plot sizes, inadequate capital for optimizing plot productivity, and ambivalent application of urban land-use laws.

Danfeng Huang · Journal of Changjiang Vegetables · Global

This paper discussed the importance of intensive vegetable production in urban agriculture, highlighting its role in guaranteeing the supply, quality, and safety of fresh vegetables. It summarized key aspects of intensive production, including industrialized seedling production, facility production, efficient cultivation, postharvest processing, and commercial management, but also presented environmental problems and restricting factors in the development of intensive vegetable production.