Research & reports

Ane Novianty, Muhamad Nurdin Yusuf, Muhamad Arif Rizki Mauladi · MAHATANI Jurnal Agribisnis (Agribusiness and Agricultural Economics Journal) · Indonesia (Tasikmalaya)

This qualitative study explored the economic and environmental aspects of urban farming activities among 12 farmers in Kelompok Tani Taruna Tani Muara Hurip, Tasikmalaya City, Indonesia. The findings indicate that urban farming activities have not significantly contributed to the income of farmers or landowners, based on the investment ratio. However, environmentally, most farmers practice eco-friendly farming using organic fertilizers.

Guilherme Raj, Giuseppe Feola, Hens Runhaar · Agriculture and Human Values · Portugal

This comparative case study of three Community-Supported Agriculture (CSA) initiatives in Portugal analyzed how power shapes transformations to postcapitalist work relations. Results showed that while CSA creates non-alienated, non-monetized, and care-filled postcapitalist work relations, they insufficiently unmake unbalanced power relations established in capitalist work relations. The selected CSA initiatives could benefit from actively deconstructing internal hierarchies, decentralizing decision-making power from farm owners, and addressing oppressive power relations ossified in their local and cultural context when establishing postcapitalist work relations.

Davide Marino, Francesca Curcio, Francesca Benedetta Felici, Giampiero Mazzocchi · Land · Italy (Rome)

This paper proposes agroecological assessment as a tool for formulating evidence-based local food policies, adapting the Tool for Agroecology Performance Evaluation (TAPE) model on a sample of 20 farms in the city-region food system of Rome, Italy. Data analysis showed that agroecological principles are not fully adopted by the majority of farms considered in Rome. Additionally, farms with the highest agroecological level are mainly driven by social factors and have a lower propensity for innovation, which could hinder the transformation process of food systems.

Juan Camilo Ochoa Céspedes · Entorno Geográfico · Colombia (Medellín)

This paper critically analyzes peri-urban and peri-urban agriculture, addressing problems of territorial tension resulting from the accelerated expansion of real estate into peri-urban areas due to low urban land availability. The discussion questions the economic, environmental, and social risks of this expansion, highlighting tensions and resistance. The paper illustrates these issues with examples from the peri-urban area of Medellín and its metropolitan area.

Natalie Call, Elizabeth Silber, E. Binney Girdler · Journal of Agriculture Food Systems and Community Development · United States

This GIS-based study of Kalamazoo, Michigan, analyzed how accessibility to different types of food access points — full-service grocery stores, farmers markets, community gardens, food pantries, and convenience stores — differed between low-income and higher-income census tracts. All full-service grocery stores were accessible via bus routes, but 11% of residents in low-income areas lacked adequate access, living beyond the 0.25-mile walkable distance to bus routes. "Positive" access points such as community gardens, food pantries, and farmers markets were found to be concentrated in areas that already had grocery store access, whereas "negative" access points — convenience and dollar stores, which provide lower-quality, highly processed food — filled the access gap in lower-income areas instead. More than twice as many low-income residents had walkable access to convenience stores as higher-income residents, with 81% of those convenience stores located within low-income tracts.

Michael G. Parkes, Rebekah O’Rourke, Tiago Domingos, Ricardo F. M. Teixeira · Sustainability · Europe

An experimental indoor vertical farm urban-agriculture project involving 27 stakeholder groups was set up in a university building in Lisbon, Portugal in 2018 and closed in 2022; this study analyzed the governance dimension of the project's sustainability using role-constellation mapping of the stakeholder groups and force-field analysis across seven governance factors to understand why the project did not continue. It found that despite early positive outcomes across environmental, social and economic dimensions, the project failed to establish a network of stakeholders consistently engaged in governance from the outset, and that inadequate project culture and a lack of critical governance factors led to a failure to convey a sense of ownership to stakeholders, contributing to the project's closure.

CHRISTINA FELIX KIFUNDA · Asian Journal of Agriculture · Tanzania

Combining 30 years of temperature and rainfall data from the Tanzania Meteorological Agency with a questionnaire survey of 386 urban-agriculture households across five wards of Kinondoni City (Bunju 118, Kunduchi 42, Mabwepande 102, Mzimuni 28, Wazo 96), plus focus group discussions, key informant interviews and direct observation, this study examined climate change's effects on urban crop production and farmers' adaptation strategies. More than 70% of surveyed smallholder farmers were aware of climate change indicators, consistent with the meteorological data, citing rising temperature (76%) and declining rainfall (73%); pests and diseases were ranked highest (88%) among significant climate-change effects. Land scarcity was also identified as a significant challenge for urban agriculture, and pesticide and fertilizer use was the most commonly cited adaptation strategy (65%).

Jesús Sanz Abad, Sara Sama Acedo, Gaël Carrero Gros · · Spain

Case studies of two cooperative enterprises (in finance and forestry) and one new urban commons — community gardens in Madrid — all located in Spain, were analyzed using ethnographic methods within the field of solidarity economy and commons. The analysis found tensions between the initiatives' economically and politically "transformative" aspirations and the reality of operating in a market-driven capitalist environment, alliances and tensions arising from interactions with established institutions, and dilemmas or conflicts between maintaining ideological coherence and extending the initiatives' social base.

Lukas Egli, Judith Rüschhoff, Joerg A. Priess · Frontiers in Sustainable Food Systems · Global

A systematic review of quantitative empirical research on the sustainability effects of community-supported agriculture (CSA) covered 39 studies. Fewer than 30% of the studies assessed ecological sustainability aspects, but where CSA farms were compared to reference systems, they mostly performed better on resource use efficiency and greenhouse gas emissions. Most studies assessed social aspects; many showed that CSA still fails to reach low-income households, so members do not represent the average population, while CSA membership was associated with improved health and sustainability behavior. Economic variables were assessed in more than half of the studies, but knowledge of CSA's relative economic performance remains scarce, though early studies indicate high economic viability. The review calls for more research on ecological aspects specifically, comparisons across farming and marketing systems, and integration of knowledge from theses and practical sources in multiple languages.

Nancy Harlet Esquivel-Marín, Leticia Myriam Sagarnaga Villegas, Octavio T. Barrera-Perales, Juan Antonio Lugo Machado, José María Salas González · Acta Universitatis Sapientiae Agriculture and Environment · Europe

This bibliometric review analyzes the systemic structure of multifunctional agriculture (MFA) and its relationship to sustainability, based on a sample of 432 documents published on the Web of Science platform. Using Bibliometrix and VOSviewer to map scientific collaboration networks, the review identified the authors, journals, and countries shaping the current knowledge structure and four thematic clusters: (a) MFA and sustainability, (b) ecosystem services and biodiversity, (c) European public policies, and (d) governance and urban agriculture. It concludes that, despite an increase in publication rates, research remains concentrated in Europe with few collaborative networks across disciplines, indicating that SDG 17 (partnerships) is not being achieved.

Arun Kafle, James Hopeward, Baden Myers · Sustainability · Global

An integrated modelling framework using proxy measures for economic benefit (net margin), social benefit (full-time farmer employment equivalent per consumer) and environmental benefit (CO2 emission reduction) was applied to two contrasting development settings, Adelaide, Australia, and the Kathmandu Valley, Nepal, to examine the characteristics of urban agriculture (UA). Using two-stage optimisation across three mechanisation levels (non-mechanised, garden tiller, garden cultivator), two purposes (gardening or commercial), two crop-value categories and two market mechanisms, the model found that no single UA form maximises economic, environmental and social (employment) objectives simultaneously: commercial UA, in which both land and labour are costed, was favoured for maximising profit or reducing CO2 emissions, while gardening-form UA was favoured for maximising employment participation. In Adelaide the model favoured commercial UA for best-case profit and carbon emissions but gardening UA for employment maximisation, while in the Kathmandu Valley the model selected gardening UA under the given assumptions.

P. Post, H. Hengsdijk · · Global

This study inventoried and characterized food production systems in Rincon, Bonaire, combining literature review and online key-informant interviews with biophysical analysis and calculations of land and water requirements for several production scales, and applying a SWOT analysis to multiple production systems. It found that increasing year-round fruit and vegetable production in Rincon, and Bonaire more broadly, is challenging and may not be feasible without support, given limited and irregular water availability, an unsupportive business environment, and harsh conditions from pests, diseases, and weather; without sufficient support to expand water availability, local agricultural knowledge, and a suitable business environment, neither capital-intensive nor small-scale crop production is likely to improve the availability of healthy food or employment opportunities.

Jordan Ashby, Clarissa Libertelli · Institute for Local Self-Reliance (ILSR) · United States

Just after NYC announced expansion of mandatory residential organics collection by 2024, the mayor's office eliminated funding for the city's community composting program. The article identifies three failures reflecting national trends: government 'composting' programs that actually rely on anaerobic digestion, centralized processing that concentrates environmental burdens in vulnerable neighborhoods, and mandatory government programs undercutting community composters' viability.

Cole Rosengren · Waste Dive · United States

California's Little Hoover Commission recommended pausing SB 1383, the state's organics recycling law, citing concern the state will miss its 2025 targets, but CalRecycle, industry and environmental advocates strongly opposed the pause, noting roughly $500 million already invested. 445 of 614 jurisdictions now have residential food-waste collection programs, and waste costs rose 20% for residential and 30% for commercial customers.

Li Jiacheng · Eco-Business / Dialogue Earth · China

China's mandatory waste-sorting policy, launched in Shanghai in 2019, improved diversion and recycling but created a new problem: overbuilt waste-to-energy incineration capacity. Shanghai diverted 54% of its waste (6.46 million tonnes) in 2021, up from 21% in 2018, while the number of national incinerators grew from 130 in 2011 to 927 by 2023, pushing 2022 national overcapacity to 100.99%.

Jena Brooker · Planet Detroit (via BridgeDetroit) · United States

Hantz Woodlands, a large-scale tree farm on Detroit's east side, acquired roughly 2,600 parcels and still holds about 2,000. It bought an initial 1,550 parcels for $540,000 and later resold about 10% of its holdings for $9.5 million — nearly nine times its original cost — while paying only $7,035 of the $33,110 it owes in blight-violation fines. Critics note the Detroit Land Bank Authority never reclaimed a single Hantz property despite missed deadlines, even as it repossessed land from ordinary residents who fell behind.

Joshua Newell, Alec Foster, Mariel Borgman, Sara Meerow · Cities · United States (Detroit)

A study in Detroit's Lower Eastside (~15 sq. miles) examined the spatial extent, characteristics, and residents' perceptions of urban gardens using spatial analysis and interviews. Gardens covered less than 1% of vacant land and were often ephemeral. Primary obstacles to scaling up urban agriculture in Detroit include uncertainty over land tenure, environmental pollutants, potential ecosystem disservices, and a lack of government support and capital investment.

Andrea Fantini · Agroecology and Sustainable Food Systems · Global

This paper analyzes the functions of urban and peri-urban agriculture (UPA) as a strategy for sustainable and resilient urban food systems and for coping with global emergencies. It identifies various functions of UPA and how they connect, but also discusses obstacles to its large-scale implementation. The paper highlights that despite its potential, significant barriers hinder UPA's widespread adoption.

Grace Ning Yuan, Gian Powell B. Marquez, Haoran Deng, Anastasiia Iu, Melisa Fabella, Reginald B. Salonga, Fitrio Ashardiono, Joyce A. Cartagena · Heliyon · Global

This review examined urban agriculture (UA) across technology, socio-economy, and policy, noting that supporting UA expansion in cities is challenging due to its poor economic profitability. The study highlighted UA's value beyond profitability, including social, health and well-being, disaster risk reduction, and environmental benefits. It also presented advancements in UA technologies and plant biotechnology as potential solutions for increasing the future profitability of commercial UA.

Amy Lawton, Nicky Morrison · Land Use Policy · Australia (Greater Western Sydney)

This study examines the drivers of peri-urban agricultural land loss in Greater Western Sydney, Australia, with a focus on the role of government agencies. It found that competing housing priorities and private market interests continue to take precedence over protecting agricultural land. The research indicates that this trend will persist unless the current pro-urbanization narrative and associated political priorities are altered.

Imen Bendjemila, Salah Chaouche · DOAJ (DOAJ: Directory of Open Access Journals) · Algeria

Urban sprawl in N'Gaous, Algeria, expanded its land area by over ten times (from 33.7 to 379.7 hectares) and its population by over six times (from 4,887 to 33,515 persons) over 60 years. This rapid growth creates significant issues, particularly for peri-urban orchards, which are the primary economic activity. The study used an analytical approach with Geographic Information Systems to assess the agronomic potential of soils and quantify agricultural land consumed by construction, aiming to achieve an optimal agri-urban balance rather than merely avoiding urban expansion.

Betty Mntambo · Huria Journal of the Open University of Tanzania · Tanzania (Morogoro Municipality)

This study examined land tenure security in urban agriculture among 69 male and female vegetable farmers in Morogoro Municipality, Tanzania, using snowball sampling and a cross-sectional design. Findings revealed that farmers access land informally by renting from legal landowners, with social relationships determining tenure security. Land tenure insecurity negatively affects vegetable cultivation and generates uncertainty and animosity between farmers and landlords.

Catherine Campbell, Jorge Ruiz‐Menjivar, Alia DeLong · HortTechnology · United States (Florida)

This research characterized commercial urban agriculture (CUA) operations in Florida, United States, and explored urban farmers' perceptions of needs, barriers, and opportunities for CUA development. A cluster analysis identified three distinct groups of urban farmers with differing perceptions of barriers, opportunities, and informational needs. The study notes that the U.S. Department of Agriculture Census of Agriculture does not report data on CUA operations, limiting knowledge about their status, including barriers to business operations and profitability.

Bernd Bonfert · Sustainability · Wales

This paper investigated local Community Supported Agriculture (CSA) networks in Wales and Germany using semi-structured interviews and observations. It found that local collaboration enables CSAs to integrate supply chains, engage communities, and participate in food councils. However, the study also revealed competitive tensions between neighboring CSAs, which presents a previously unknown challenge to CSA's potential scalability.

Jianyun Nie, Akira Kiminami, Hironori Yagi · Sustainability · China (Shanghai)

This study analyzed the sustainability status of 22 urban leisure farms in Shanghai using the IDEA method. Farms' average sustainability scores were 25.72 on the agroecological scale, 32.5 on the socioterritorial scale, and 46.5 on the economic scale. This analysis revealed that while urban leisure agriculture in Shanghai has high sustainability at the economic scale, its overall sustainability was low, indicating a need for further strengthening.