Research & reports

Tian Lib · Chinese Journal of Tropical Agriculture · China (Hainan)

This paper summarized the status of protected horticulture in Hainan, China, identifying major problems such as a deficiency of special varieties, unsuitable introduced facility types, lack of a non-nuisance production system, and insufficient capacity for resisting natural disasters and environmental control. To achieve sustainable development, the local government needs to strengthen funding and policy support, enhance farmers' awareness of pollution-free production, and improve management techniques.

Matilda Thelin · · Sweden

This qualitative study in peri-urban Uppsala, Sweden, identifies driving forces influencing land use decisions by commercial farmers and institutional landowners. It notes that approximately 700 hectares of land in Sweden are diverted from food production annually, with Uppsala Municipality showing the greatest change in 2013. The expropriation of agricultural land for urban development leads to farmers losing land resources and increased competition for remaining land, resulting in high land prices.

Matt Murray · Journal of Political Ecology · United States (New York City)

Efrat Eizenberg's book "From the Ground Up" explores New York City's community gardens as spaces that resist the commodification of land. The book details the history of these gardens, including their emergence during the 1970s economic crisis when primarily Black and Hispanic residents transformed vacant land into communal green spaces. As the real estate market recovered in the 1980s, land values increased, and many gardens were threatened by gentrification pressures. Eizenberg analyzes these transformations at individual, collective, and institutional levels, highlighting how gardeners create common spaces, solidify interpersonal ties, and organize to defend their gardens.

Y. Saleh, Amul M. Badr, F. El Banna, A. Shahata · Science World Journal · Nigeria

Using a combination of remote sensing and GIS, this study assessed the rate of agricultural land-use change in the Kaduna metropolis, Nigeria, between 1980 and 2012, classifying and comparing four satellite images (Landsat MSS 1980, Landsat TM 1990, Landsat ETM+ 2005, and Nigeria Sat X 2012). The study found a significant reduction in agricultural land and continued disappearance of farmland over the period, which it links to loss of livelihoods, reduced food supply, and increased poverty. It states that this has raised concerns about the sustainability of urban and peri-urban agriculture (UPA) production in the study area, with small-scale farmers the most affected.

Leandro Pessoa Lucena, Francisco José Kliemann Neto, Fernanda Mariano Massuia, Leonardo Donizete Fanti · RAI revista de administração e inovação · Canada

Against the backdrop of demographic projections that global population will reach 9.4 billion within the next 50 years, requiring an additional area of fertile land roughly the size of Brazil that does not exist on the planet, this study evaluated the economic viability of a Canadian vertical farm model as a sustainable urban-rural food production alternative. Using the NCIC method via a participant-observer approach, the study reported the model as economically viable and sustainable, as well as innovative in flattening production chains.

Da Wang · · China (Beijing)

This study evaluates and analyzes urban agriculture in Beijing by focusing on the relationships among its subsystems and their relative influence. Results show that the comprehensive evaluation index of urban agriculture has risen steadily with a positive trend, but that the comparative advantages of both the population subsystem and the social subsystem have weakened, due to the loss of agricultural labor force and the urban-rural income gap. Meanwhile, the function of the environment and resource subsystems has strengthened, promoting a shift in Beijing's urban agricultural mode from one led by the economic subsystem toward one led jointly by the environment and economic subsystems. Given increasing pressure on environment and resources, the study concludes Beijing needs to build an ecological urban agriculture system and move away from an industrial development approach.

Michela Felicetti · Advanced engineering forum · Italy

A paper examining whether the food hub concept can be applied to the Piana di Sibari area of Calabria, Italy, designated a Quality Agrifood District (DAQ) under regional law. After identifying features of the food hub concept within the area's largest cooperative, the paper argues that this arrangement represents an opportunity for small farmers to access conventional food supply chains from which they would otherwise be excluded. It frames food hubs as a hybrid of alternative and conventional food networks and, notably, as a way to address the economic viability problem faced by local food initiatives such as community-supported agriculture (CSA)—that is, the paper's premise is that CSA-type local food initiatives struggle to be economically viable on their own.

C.F.A. van Wesenbeeck, Valentijn Venus, M.A. Keyzer, B. Wesselman, D. Asare Kye · · Africa

This study examined two tomato production areas in Burkina Faso with potential for counter-seasonal production aimed at Ghanaian urban markets, identifying the main obstacles to developing a horticultural supply chain: the monopsony power of Ghanaian traders and insufficient road quality causing high mechanical-damage losses in transport. Using a spatial-temporal simulation model to assess transport effects on tomato quality, the study found refrigerated transport is not a necessary condition for successful trade, since climate conditions alone do not severely harm quality, and concluded that regional diversification of exports offers Burkina Faso producers the best opportunities for improving their position in the chain, given the persistent trader monopsony and infrastructure constraints.

Ryan E. Galt · Economic Geography · United States (California)

A study of 54 Community-Supported Agriculture (CSA) farms in California's Central Valley used qualitative and quantitative data to explain farmers' earnings. An ordinary least squares regression analysis revealed that farmers' age, number of employees, and CSA type strongly influence earnings. The study found that the moral economy of CSA often results in self-exploitation due to farmers' strong sense of obligation to members, despite allowing for economic rents.

Sam E. Wortman, Sarah Taylor Lovell · Journal of Environmental Quality · United States

This review paper characterized the limited state of scientific knowledge regarding abiotic environmental factors threatening the growth of urban agriculture in the United States. It identified challenges influencing urban cropping systems, including soil contamination and remediation, atmospheric pollutants and altered climatic conditions, and water management, sources, and safety. The development of a science-based approach in these areas is noted as essential for the economic and environmental sustainability of urban agriculture.

Zakir Hussain, Markus Hanisch · Journal of Environmental Planning and Management · India

This paper describes the adaptation of agricultural management practices in the urban periphery of Hyderabad, India, due to structural changes. Based on 120 farmer interviews, the study found that increasing costs for agricultural inputs like labor and land motivated farmers to intensify water, machine, and chemical use, which created problematic environmental impacts. Farmers also adapted by resorting to part-time farming and organizing efforts to share family labor.

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.

Lijie He · · China

This article analyzes the current situation and problems of urban agricultural development in small towns of China. It identifies severe problems hindering progress, including decreasing agricultural land, severe waste of land resources, serious agricultural pollution, low quality and income of agricultural labor, limited transport capacity, insufficient funding, and a lack of related policies and regulations.

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.

N E Etim, J J Dukiya · International Journal of Advanced Remote Sensing and GIS · Nigeria (Abuja)

A study in the Kuje area council of Abuja, Nigeria, used questionnaires and multi-temporal satellite images from 1975–2010 to assess urban encroachment on agricultural lands. It found that urban encroachment into agricultural lands is occurring at an alarming rate of 15.7 km² annually, resulting in a total loss of 509 km² of agricultural land to urbanization over 35 years.

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.

A. Bryan Endres, Rachel Armstrong · · United States

This article discusses Community Supported Agriculture (CSA) and 'community labor,' where customers participate in food production on farms. It highlights a paradox: traditional employment law, envisioning autonomous competition, makes little room for these novel relationships, potentially undermining CSA values and limiting its viability and growth. The authors suggest that employment law should develop a more nuanced view of relationships in the CSA context, supporting mutual gain and shared values over competition-based rules.

卓也 林 · Institutional Repositories DataBase (IRDB) · Japan (Inagi City)

This study examined the management characteristics of direct farm sales outlets and the role of agriculture in urban areas, using pear farmers in Inagi City, Tokyo, as an example. Field surveys confirmed a decrease in pear picking activities and a high ratio of direct sales and home delivery. While familiarity with agriculture has increased due to farmers' cooperation in agricultural experience learning and the establishment of many community gardens, a limitation was identified: to convey the value of urban agriculture to those with low interest, the enhancement of pear picking, allowing easy interaction with farmers on farmland, is required.

Yuki Kato · Sociological Inquiry · United States (New Orleans)

This case study of a community-supported agriculture (CSA) organization in New Orleans focused on the lack of participation by local residents in the CSA market despite its intentions. Interview and ethnographic observation data indicated a general consensus on economic constraints, while some non-resident supporters attributed the issue to a lack of knowledge about the food system. Residents, however, pointed to spatial and sociocultural barriers, including produce selection, purchase options, market access convenience, and the race-related historical and spatial context of the market's location, making the market less accessible to them.

Priyanie Amerasinghe, R. M. Bhardwaj, Christopher A. Scott, Kiran Jella · · India

This study analyzed the current status of wastewater generation, its uses, and livelihood benefits, particularly in agriculture, in India. It was based on national data and case studies from Ahmedabad, New Delhi, Hyderabad, Kanpur, and Kolkata. A lack of systematic data collection by municipalities makes it difficult to accurately assess wastewater generation or estimate the total urban area under wastewater irrigation.

Wen-jiang Li, Linjun Li, Guoyu Qiu · Journal of Integrative Agriculture · China (Shenzhen)

Water and electricity-use patterns in Shenzhen, South China, were analyzed from 2001 to 2009. Water and electricity use per GDP in agriculture was the highest among sectors, indicating inefficiency. Traditional agriculture in Shenzhen will not be sustainable during urbanization and industrialization, except for high-tech intensive agriculture with low water and energy costs, and has been gradually substituted by industry, construction, residential life, and services.

Giovania Genevieve Tiarachristie · · United States (Harrisburg)

This qualitative study explored race-class conflicts around food and urban gardening in South Allison Hill, Harrisburg, Pennsylvania, a diverse, low-income neighborhood. Seven interviews with neighborhood leaders revealed that the "Whiteness" of a new wave of urban gardening can create race and class tension, hindering collaborative partnerships and local food systems development. The findings indicate structural limitations and social roadblocks, suggesting that urban gardening can exacerbate existing inequities if not approached with structural economic justice and cultural competency.

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.

Phil. Caleb Mireri · African Journal of Agricultural Research · Kenya (Kisumu)

This study surveyed 194 urban farmers in Kisumu municipality, Kenya, to assess urban agriculture's role in income, employment, and food supply. It found that most urban farmers and their employees receive very low income, with a mean monthly income of US$135 (US$0.64 per person per day), which is below the acceptable one dollar a day per person. Urban agriculture primarily supplements food requirements for the urban poor and provides income for a few commercial farmers.

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.