Research & reports

Piaopiao Ke, Beñat Olascoaga, Pasi Kolari, Outi Tahvonen, Sami Haapanala, Tom Kokkonen, Leena Järvi, Markku Kulmala, Anna Lintunen · Urban forestry & urban greening · Finland

A year-round eddy covariance and soil chamber measurement in an urban allotment garden in southern Finland showed it functioned as a net CO₂ source (0.69 kg m⁻² yr⁻¹) despite 77% vegetation cover. High respiratory emissions (4.7 kg m⁻² yr⁻¹) exceeded photosynthetic uptake (4.0 kg m⁻² yr⁻¹), likely due to elevated soil organic carbon (13.4 ± 8.7%) and high soil C:N ratio from management amendments. These findings challenge assumptions about urban gardens as inherent carbon sinks and suggest carbon-smart management practices are needed.

Hang Yu, Mohd Yazid Mohd Yunos, Mohd Nazri Saidon, Mohd Amirul Hussain · Landscape Research · China (Shenyang)

This study critically examined how community-led edible landscapes intersect with tensions of urban redevelopment, memory politics, and governance ambiguity in post-industrial Shenyang, China. Using a qualitative case study approach, including participant observation, semi-structured interviews, and spatial documentation, findings showed that while edible landscapes can revitalize neglected spaces and evoke industrial memory, they also face instability, informal governance, and socio-environmental risks.

Ibnu Akmal Khuluqi, Muhammad Azhari, Rahmawati Munir · TRANSFORM Journal of Tropical Architecture and Sustainable Urban Science · Indonesia (Bontang Baru)

A qualitative case study in Guyub Rukun RT 18, Bontang Baru, Indonesia, investigated the implementation of urban farming. The study found that urban farming improved local food security, strengthened social ties, and was supported by CSR funds. However, it faced challenges such as limited technology and resources, which were overcome through manual adaptation and cross-sector collaboration.

Katie Schofield, Jacqueline Fanta, William Kolong Pioth, Alissa Cook, Samuel Owuor, Cherie Enns · Youth · Kenya

This youth-led study, involving 40 South Sudanese urban refugees (aged 19-32) in Kenya, mapped food supply chains and identified barriers to procuring, growing, and selling food. Findings indicate that improving the quality of life and food security for refugee youth is complex. Without education and improved livelihoods, including urban agricultural opportunities, their health and wellbeing will continue to be negatively affected.

Arild Eriksen, Deni Ruggeri, Esben Slaatrem Titland · · Norway (Oslo)

This essay examines urban agriculture from the perspective of an architect and urban farmer/beekeeper practicing bottom-up, participatory design in Oslo. Critical dimensions of urban agriculture in public space include private and corporate claims on these landscapes, and its current aesthetics of impermanence are critiqued. The essay questions the notion that the joy and freedom urban agriculture brings to a community should be built upon and enriched by future development and policy.

Much Faisal Syaputra · Jurnal Administrasi dan Kebijakan Publik · Indonesia (Makassar City)

This qualitative case study critically examined the governance structure of Makassar City's Lorong Wisata program, which integrates urban farming for food self-sufficiency. The study found a fragmented governance network dominated by the municipal government's vertical authority, with weak cross-sectoral collaboration, particularly with universities and private actors. Institutional fragility was evident due to the absence of functional task forces, leading to symbolic rather than substantive coordination.

Assyifa Fauzia, Evi Frimawaty, Hadi Susilo Arifin · RISALAH KEBIJAKAN PERTANIAN DAN LINGKUNGAN Rumusan Kajian Strategis Bidang Pertanian dan Lingkungan · Indonesia (Jakarta)

This study aimed to provide recommendations for community-based urban agriculture sustainability in Cempaka Putih District, Central Jakarta, facing challenges like limited land and environmental changes. Using SWOT analysis and FGDs with stakeholders, the findings indicate that strategies can be implemented through agricultural technology and strengthened collaboration. However, the study implies that supporting policies, incentives, investment facilitation, and continuous infrastructure and assistance are currently lacking for implementation.

Md. Ashikuzzaman, Mohammad Shahidul Hasan Swapan, Atiq Zaman, Yongze Song · Sustainability · Bangladesh (Dhaka)

This study explored the connection between organizational rational choice in urban rooftop farm (URF) policy development and social innovation, using a literature review and a case study of Dhaka, Bangladesh. Despite the rising popularity of URFs in Dhaka, existing policies and strategies were found to lack clarity and governing mechanisms are absent. The findings suggest that a participatory and co-productive approach, involving community members, local governments, and NGOs, is optimal for URF policy formulation and successful governance.

Christina Frendo · Urban Geography · Canada (Montréal)

This study analyzed how urban agriculture contributes to green gentrification in Montréal. Based on interviews with planners, developers, and community actors, and discourse analysis of municipal policy documents, it showed that ecological initiatives are prioritized over housing, and sustainability fixes reconcile progressive rhetoric with growth imperatives, leading to policy trade-offs that undermine housing affordability. These findings reveal how progressive governments reproduce structural injustices through their ecological transition agendas within the context of a housing crisis.

Marisol Silva-Vera, María de Jesús Jiménez González, Laura Varela Almanza · JÓVENES EN LA CIENCIA · Mexico

A quasi-experimental study in Mexico with 21 adults over 65 evaluated a community urban garden intervention for nutritional status. Participants showed increased nutrition knowledge, a 47.7% rise in vegetable intake, and a 23.8% increase in physical activity. However, anthropometric variables did not show significant differences, indicating limited impact on physical measurements despite positive changes in knowledge and habits.

Xiang Zhou, Nan Wang, Jiaying Shi, Michael Hensel · Humanities and Social Sciences Communications · China (Nanjing)

A study of urban foraging behavior in Nanjing's central urban area, China, revealed significant enthusiasm among residents, linking personal childhood experiences to their foraging motivations. However, environmental pollution was identified as a critical barrier to these activities.

Juliane Forßmann, Simon Goebel · Zeitschrift für Flüchtlingsforschung · Germany

An urban gardening project in a residential facility for up to 230 refugees in Germany aims to counteract precarious living conditions. While the garden offers a low-threshold space for knowledge exchange on resource-saving cultivation, biodiversity, and health promotion, this paper also reflects on the project's limits.

James Mbugua · African Journal of Climate Change and Resource Sustainability · Global

Biochar is presented as a promising nature-based solution for urban resilience, applicable in soil remediation, stormwater management, and carbon sequestration within green infrastructure. However, its widespread adoption faces significant barriers, including inconsistent feedstock supply, high production costs, limited public awareness, and a lack of standardized quality and safety regulations. The study also identifies a critical need for policies that integrate biochar into urban planning frameworks and incentivize its production and application.

Rico Yanuar Ardiansyah, Hamidah Hendrarini, Wahyu Santoso · Jurnal Ilmiah Sosio Agribis · Indonesia (Surabaya)

A study in Surabaya City, Indonesia, analyzed community participation in urban farming among 50 respondents from three farmer groups from April to June 2025, using Importance Performance Analysis. While urban farming performed optimally in ecological, socio-cultural, educational & tourism, and health aspects, the economic aspect showed the lowest performance and largest gap. This indicates a need for strengthening outcome management, market access, and community economic empowerment to optimize economic contributions.

Paula Marques Crelier, Manoel Jerônimo Moreira Cruz, Danusia Ferreira Lima · Seven Editora eBooks · Global

A controlled laboratory experiment cultivated BRS Leila lettuce (L. sativa) in samples contaminated with lithium carbonate (Li₂CO₃) at concentrations of 150 and 200 mol/L. The study found that lithium correlates with other alkaline and alkaline earth elements in the leaves and roots of the lettuce. This indicates a contamination pathway where lithium is absorbed by the plant.

Limachi Pérez, Vicente · Macedonian Journal of Medical Sciences (University of Skopje) · Bolivia (Cochabamba)

This study examined the influences of family, school, and sociodigital networks on environmental awareness among secondary school students in urban and rural Cochabamba, Bolivia. Data from three schools showed students' environmental concerns varied by region, and the internet was their primary information source. Despite isolated initiatives like school gardens, schools did not effectively integrate environmental education into the curriculum, limiting its formative impact.

Alifia Nur’ Annisa, Reo Sambodo · JIGA Journal Innovation in Green Agriculture · Indonesia (Yogyakarta City)

A quantitative survey study in Gondokusuman District, Yogyakarta City, Indonesia, conducted in 2025, analyzed the feasibility of urban farming and its contribution to household income using census sampling. The analysis, including R/C and B/C ratios, found that urban farming had an R/C ratio of 0.49 and a B/C ratio of -0.51. These results indicate that urban farming has not been effective in increasing household income, primarily serving as a supporting activity for household consumption, though it provides indirect benefits by fulfilling food needs and reducing expenditures.

Marvin Joseph F. Montefrio, Nathalie Dagmang · The Journal of Peasant Studies · Philippines (Metro Manila)

This article examines two cases of radical urban agriculture in Metro Manila, Philippines, where urban poor communities strive for food sovereignty and assert rights over contested urban lands. It highlights that the spatiality of material constraints in cities acts as a mediating factor, influencing the formation of rural-urban alliances and the sustainability of urban resistance efforts. The study reveals challenges in establishing and maintaining these alliances due to urban material limitations.

· The MIT Press eBooks · Brazil (Rio de Janeiro), China (Beijing)

This account describes the challenges in building support for Rio de Janeiro's Hortas Cariocas urban farming initiative in 2016. Negotiations among environmental protection officers, education officials, and school administrators generated "fiery discussions" regarding garden placement, teacher training, and incentives. The presence of a foreign professor was used to strengthen arguments for urban farming's benefits.

Gonzalo Lizarralde, Sara Latorre, Neidy Clavijo, Benjamín Herazo, Manuel Pérez, Kevin Gould, Myriam Paredes, Elsa Monsalve, Nicolás Ordoñez, Roberto Burdiles, Claudio Araneda, Lisa Bornstein, Ricardo Dueñez, Adriana Patricia López Valencia, Oswaldo López, Andrés Olivera, Pedro Tex Martinez, Gloria Artze · Frontiers in Sustainable Food Systems · Latin America and the Caribbean

This study investigated the emergence, legitimization, and survival of alternative food systems in low-income settlements across Latin America and the Caribbean. Researchers conducted 340 interviews and 312 questionnaires, following 18 bottom-up initiatives related to food production, distribution, transformation, and consumption in urban and peri-urban areas of Colombia, Cuba, Ecuador, and Chile. Empirical results demonstrated the inadequacy of existing regulations and policies to comprehend the dynamic resistance occurring in the "in between" spaces of both identities and urban structure.

Muḥammad Iqbāl, Nurmelati Septiana, Ana Fitrotun Nisa · Frontier Agribisnis · Indonesia (Banjarbaru)

A qualitative descriptive study was conducted from May to December 2024 on the Cempaka Berkah group in Cempaka District, Banjarbaru City, Indonesia. This research aimed to analyze communication practices and patterns in the implementation of an urban farming program. The results indicated that active participation by group members led to a generally well-functioning communication process, though it still faced some communication barriers. The dominant communication pattern used by the group was a wheel pattern, where one person served as the information hub.

Robert J. Moriarity, Meaghan J. Wilton, Eric N. Liberda, Tim Drew, Ada John, Howard Jeddore, Atanu Sarkar, Jim D. Karagatzides, Leonard J. S. Tsuji · Journal of Agriculture Food Systems and Community Development · Canada (Newfoundland)

This study aimed to develop safe community garden sites in Miawpukek First Nation, Newfoundland, Canada, addressing potential soil contamination. Soil testing revealed inorganic arsenic levels exceeding Canadian agricultural guidelines. Hügelkultur-style raised beds with imported soil were used, resulting in undetectable arsenic in potatoes grown there, while potatoes from contaminated soil exceeded safety limits. Kale grown in both raised beds and native soil remained within safety limits.

Rui Fu, N.Sureshkumar PP Narayanan, Umahdevi Jayamani, Li Lian Chew, Fadhlur Rahim Azmi, Veera Pandiyan Kaliani Sundram · Malaysian journal of consumer and family economics/Malaysian Journal of Consumer and Family Economics · Malaysia

This qualitative study used grounded theory methodology, collecting data from in-depth interviews and focus group discussions with 25 Malaysian consumers, to explore perceptions of urban farming's role in supply chain resilience. Consumers generally view urban farming as a vital strategy for resilience, influenced by environmental and social impacts, trust in local food, and community empowerment. However, significant barriers to widespread adoption include concerns about scalability and cost-effectiveness.

Caitlin Morgan · Gastronomica The Journal of Food and Culture · United States (upstate New York)

This study is a case study of Essex Farm, a full-diet Community Supported Agriculture (CSA) operation in upstate New York. The farm struggled to balance its ecological and social values with the economic imperatives and pressures of surviving in a competitive, capitalist market. Consequently, the farm's social fabric, critical to its initial success, began to fray over time.

Popov, Velian · reposiTUm (TU Wien) · Bulgaria (Plovdiv)

This study examines the disappearing phenomenon of informal urban gardening, known as Rancho, in Plovdiv, Bulgaria, focusing on its socio-historical factors. Despite its authentic, decades-long existence, Rancho is neglected and considered outdated, with a lack of legal regulation and its informal character endangering its future. The study proposes a gradual transformation of these areas into community urban gardens with new infrastructures to raise awareness and encourage authorities to reintegrate Rancho into the urban context.