Research & reports

Augustin Tshilumba Ilunga, Michel Mbumba Bandi, Albert Tshinyama Ntumba, Damien-Joseph Muteba Kalala · Revue Africaine d’Environnement et d’Agriculture · Democratic Republic of Congo

A study of urban agriculture in Kinshasa, Democratic Republic of Congo—a sector described as vital for food security and employment amid rapid urbanization, food insecurity, and unemployment, where farms face significant challenges including land pressure, restricted access to credit, and lack of institutional support. The study aimed to (i) examine the motivations of agri-entrepreneurs, (ii) assess their impact on farm viability, and (iii) identify the economic and non-economic factors influencing business sustainability, using a qualitative and quantitative survey combining 20 semi-structured interviews across three peripheral zones (via snowball sampling) with documentary analysis. Three categories of entrepreneurs were identified: civil servants farming as a supplementary activity, private-sector employees investing in farming, and traders farming to secure their survival. Non-pecuniary motivations such as social engagement and passion strengthened resilience, but land insecurity, a financing deficit, and lack of training were identified as the major obstacles farms face; observed adaptive strategies included diversification and informal partnerships. The study concludes by calling for integrated strategies to secure land tenure, facilitate access to credit, and professionalize the sector while integrating peri-urban agriculture into urban planning processes.

Diana Dushkova, Maria Ignatieva · Diversity · Global

Ongoing urbanization, biodiversity decline, and intensifying climate change are increasingly challenging the sustainability of urban green spaces dominated by conventional, intensively maintained lawns, which are criticized for their low biodiversity value and high resource demands. This paper explores nature-based solutions (NBS) as alternatives for enhancing the resilience and multifunctionality of urban lawns, conceptualizing lawns as intertwined ecological, design, and socio-cultural systems and evaluating strategies for their transformation. Drawing on case studies from ten Eurasian cities, a narrative literature review, and the authors' inter- and transdisciplinary research experience, it develops a typology of NBS alternatives including urban species-rich meadows, semi-natural grasslands, naturalistic herbaceous perennial plantings, mixed-vegetation groundcovers, edible lawns, pictorial (annual) meadows, and rewilded lawns, with key interventions including reduced mowing, multifunctional green spaces, adaptive management, and community engagement. The paper finds that these approaches can enhance biodiversity, ecosystem services, and climate resilience, but that their success depends on local ecological conditions, landscape design, and public perceptions of urban nature; it recommends using native, drought- and trampling-resistant plants with context-sensitive design that respects cultural traditions of urban greening and fosters social acceptance.

Bojan Baletić, Iva Bedenko, Marijo Spajić · · Croatia

A chapter examining the implementation of nature-based solutions (NBS) in the Zagreb Living Lab, in the post-industrial area of Sesvete, Croatia, as part of the EU proGIreg project. Key initiatives include the "City Gardens" project, offering citizens free plots for sustainable urban gardening, and a therapeutic garden designed for individuals with disabilities, alongside integration of green technologies including a modular urban farm combining aquaponics with green roofs and walls. Despite challenges from the COVID-19 pandemic and earthquakes, the chapter states these initiatives demonstrated the potential of NBS to enhance urban regeneration, social inclusion, and environmental sustainability, emphasizing co-design processes involving local stakeholders and citizens that successfully fostered community engagement and acceptance of NBS. It discusses challenges and opportunities in operationalizing NBS within urban planning and policy and reflects on the potential for scaling these solutions and their role in shaping Sesvete's future development.

Baltazar M.L. Namwata · African Quarterly Social Science Review · Africa

A cross-sectional survey using multistage sampling across 15 neighborhoods (mitaa) in eight wards of Dodoma City, Tanzania, examined types, spatial distribution and gender dynamics of urban agriculture among 300 urban farmers in squatter and non-squatter settlements, using structured questionnaires, focus groups, key informant interviews and field observation. Crop-only farming was the most common of the observed typologies (crop-only, mixed, and livestock-only), with homestead farming linked to more informal cultivation on floodplains and government land in violation of land-use policy. Men dominated farming decision-making overall, though a trend toward joint and female-headed farming emerged among female-headed households, and squatter and non-squatter areas differed in tenure security, rule enforcement and infrastructure access.

Jarosław Chmielewski, Barbara Gworek, Alicja Walosik, Magdalena Florek-Łuszczki · Annals of Agricultural and Environmental Medicine · Poland

Soil (N=196) and root vegetable (N=94) samples from 16 allotment gardens in Warsaw, Poland, were analyzed for manganese, zinc, copper, lead and cadmium and assessed for health risk. Parsley, carrots, beetroots and celery grown in these gardens accumulated elevated levels of all five metals, and the health risk assessment found an increased risk of carcinogenic effects from cadmium and lead in consumers of these root vegetables; the authors conclude consumption of vegetables from the examined gardens should be very limited or eliminated from the diet entirely.

Alejandra Acevedo-De-los-Ríos, Favio R. Chumpitaz-Requena, Daniel R. Rondinel-Oviedo, Úrsula Cárdenas‐Mamani, Johan Manuel Redondo · Environmental Science & Policy · Global

This study used a System Dynamics model to simulate five 10-year policy scenarios for an informal settlement in a developing country, addressing settlement consolidation and women's access to formal employment: business-as-usual, time-quality, women's formal employment, circularity (including organic waste management with urban gardens and urban agriculture), and a comprehensive scenario combining all interventions. Individual solutions alone did not fully capture potential synergies, whereas the comprehensive scenario reduced by 47.5% the time needed to improve women's formal employability, a result linked to the settlement consolidation process.

Riska Oktavia, Akhmad Faqih, Agus Riyadi · Jurnal SOLMA · Indonesia

This community program in RT/RW 01/05, Rejosari, Semarang, Indonesia, empowered women members of the PKK (Family Welfare Movement) through socialization, training, mentoring and monitoring around urban farming practices, including cultivation of chili, eggplant, cassava, shallot, bitter melon, pandan, melon, Brazilian spinach, celery and citrus leaves in shared and home plots. The program report concludes that PKK empowerment through urban farming was effective in improving family welfare in Rejosari, contingent on active community participation, local government support and continuity of mentoring and training.

Ikrema Hassan, Innocent Mugudamani, Saheed Adeyinka Oke · Environments · Canada

Top and subsoil samples from Carleton community garden in New Brunswick, Canada, affected by an industrial fire hazard, were analyzed for toxic heavy metals using ICP-OES and ICP-MS, with ecological risk assessed via the ecological risk factor and potential ecological risk index (PERI) and human health risk assessed using a standard approach. Mean concentrations of lead, zinc, copper and tin exceeded permissible limits under Canadian soil quality guidelines and upper continental crust values; nickel posed a high ecological risk across both soil layers while all other metals showed low ecological risk, and overall PERI indicated low ecological threat. In the human health assessment, children faced non-carcinogenic and carcinogenic risk from arsenic exposure while adults did not face risk from any of the metals studied, identifying arsenic as the primary contaminant of concern and children as the most vulnerable population.

Daniel Sgrancio Uliana, Rhaiza Marcia Passos Leal, Sara Jarske Gering, Érica Aguiar Moraes, Jackline Freitas Brilhante de São José · Revista Guará · Brazil

This experience report covers activities of the Brazilian university extension project "PANCCult: Cultivating Knowledge and Flavors of Unconventional Edible Plants," carried out from November 2021 to January 2024, which conducted social media outreach, organized and participated in events sharing nutritional and culinary information, carried out activities in an urban community garden, and produced scientific materials on unconventional edible plants (PANC) and urban community gardens. The report concludes the project contributed to disseminating knowledge about PANC and provided professional-training opportunities for extension students while encouraging sustainable use of plant biodiversity.

Anna Stage (17743305), Marie Caroline Vermund (11075551), Mads Bølling (6661577), Camilla Roed Otte (21175813), Alberte Laura Oest Müllertz (21175816), Peter Bentsen (3527732), Glen Nielsen (10468844), Peter Elsborg (8894495) · Figshare · Europe

This is the SPIRIT checklist for the FoodACT protocol, a multimethod, quasi-experimental study preregistered with ClinicalTrials.gov (#NCT05839080) investigating how the existing Danish school garden program Gardens to Bellies (GtB), delivered at six locations across Region Zealand and Region of Southern Denmark, affects fourth-grade pupils' food literacy, climate change literacy, school motivation and physical activity. Approximately 1,600 pupils attending GtB form the intervention group and approximately 1,600 pupils from non-participating schools form the control group, with pupils in the eight-session program growing, preparing and cooking foods; outcomes will be measured via pre/post surveys, accelerometry in a 900-pupil subsample, text-message surveys and semi-structured and focus-group interviews, analyzed using linear mixed models and thematic analysis. As a protocol document, it describes study design rather than results.

Riann Lognon, Chetna Khandelwal, Megha Sanyal, Santanu Dutta, Pallavi Banerjee, Pratim Sengupta · Frontiers in Climate · Global

Drawing on a three-year community gardening project co-created with newcomer (refugee) youth of color in North America, this qualitative study analyzed the youths' participatory, embodied and discursive work over the first two years of creating and caring for the community garden, examining how they re-establish relationships with land, air, water and more-than-human life in their newly adopted home. The analysis found the youths' participation centered an anti-racist praxis within the garden, and the study offers an expanded account of how race and climate are implicated together in migration.

Edwin Javier Ortega Zúñiga · Ediciones Comunicación Científica eBooks · Colombia

A study of Palmira, Colombia — a city with a long tradition as the country's agricultural capital — finds that it nonetheless faces significant food insecurity. Prior research reviewed in the study attributes this to an aging rural population and young people's declining interest in farming (which has shrunk the available labor force and limited adoption of new technology), gender inequality that restricts women's access to agricultural resources and decisions, climate change impacts such as droughts and floods on production, and accelerated urbanization that has reduced cropland and fragmented the agricultural landscape. As a potential response, the study describes a pilot project at four sites in the city that installed small-space vegetable production systems, which it reports functioned as a viable source of fresh food in dense urban settings. The authors call for a multidisciplinary approach combining social, economic and environmental factors to address food insecurity in Palmira.

Parisi A., Walthall B., Clerino P., Firmbach P., Onyszkiewicz M., Vicente Vicente J. L. · Environmental Evidence · Global

A protocol for a systematic map of the scholarly literature on the relationship between urban agriculture (UA) and gentrification. The authors note that existing accounts variously present gentrification as a possible outcome of UA activities, as a risk that UA initiatives themselves face, and as other kinds of relationship, and argue that these divergent accounts are partly explained by different theoretical engagements with gentrification and by the breadth of activities gathered under 'urban agriculture'. It sets out the search and review strategy and aims to expose gaps in dominant academic discourses. Being a protocol, it reports no findings yet.

Tanja Kähkönen, Joshua Finch, Michael den Herder · Zenodo (CERN European Organization for Nuclear Research) · Global

This paper describes community supported agriculture (CSA) as a collaboration model for food production, distribution and consumption involving farmers and consumers. It notes that CSA consumers can include individuals and families as well as other consumers such as restaurants, schools and kindergartens.

Fadhil Adi Nugraha, Ira Malihatun, Siwi Gayatri, Titik Ekowati, Sumarsono Sumarsono · AGRICOLA · Indonesia

In Semarang City, Indonesia, a survey of 86 farmers from four Women Farmer Groups (KWT) who received the government's Sustainable Food Yard (Pekarangan Pangan Lestari) program — using questionnaire interviews, descriptive analysis, and a literature review — assessed the program's social, economic, and environmental impacts. The social impact was rated "less" (score 31.10%), the economic impact "low" (28.88%), and the environmental impact "very low" (18.60%). The program strengthened social relations among farmers but was not effective in improving farming skills or public health; economically it had potential to contribute to household expenditure but had not optimized income growth or job creation; and its environmental impact remained limited, particularly in preserving biodiversity and reducing chemical use.

Aprilia Martika, Amelia Sari, Disti Macela Putri, Misbahul Munir · Inisiatif Jurnal Ekonomi Akuntansi dan Manajemen · Indonesia

Focusing on the Parit Lalang area of Pangkalpinang City in Bangka Belitung, Indonesia, this qualitative case study used participant observation, in-depth interviews and documentation studies, analyzed thematically and via SWOT analysis. Urban agriculture there is carried out mostly in small home gardens and on vacant land, using hydroponic and traditional methods, with productive-age residents and housewives as the main participants. The practice increased household food availability, reduced living costs, and generated additional income, strengthening local economic resilience. However, challenges remain, including limited technical skills, financial constraints, and inconsistent government support, and the study concludes that strengthening training programs, improving access to finance, and developing pilot projects are needed.

Eka Sariyanti, Ahmad Yani T · JP2M (Jurnal Pendidikan dan Pembelajaran Matematika) · Indonesia

In Indonesia, a descriptive qualitative study using observation, interviews and documentation examined project-based learning (PjBL) that draws on school assets, including school gardens, to teach social arithmetic (profit-and-loss calculation). The learning project had students process garden produce into sellable products and analyze profit-and-loss calculations, incorporating cross-subject collaboration with Indonesian Language and Social Sciences (IPS). Implementing school-asset-based PjBL was found to increase student motivation, engagement, and understanding of social arithmetic concepts, but the study also identified challenges including time constraints in project management and students' difficulty understanding the concepts of profit and profit margin calculation.

Rodriguez, Eliza · Digital Commons - CSUMB (California State University, Monterey Bay) · United States

A community outreach and education project in Gonzales, California, was implemented by the organization Savor the Local in partnership with the City of Gonzales and the Community Alliance with Family Farmers, aiming to raise awareness of healthy eating and identify barriers to accessing nutritious food among the city's working-class residents. Activities included distributing an informational pamphlet, a follow-up survey, and support for a community garden and healthy cooking classes. Eight survey participants reported a better understanding of the importance of healthy eating and helped identify some reasons residents were not easily accessing healthy foods; the project reported meeting its goals of increasing awareness and gathering feedback on food-access barriers.

Sunamis Fabelo Concepción, Elizabeth Peña Turruellas, Maruchi Alonso Esquivel · Latin American and Caribbean Studies · Global

A discussion piece examines opportunities for cooperation on food security and sovereignty between Cuba and the Republic of Korea following the reestablishment of diplomatic relations between the two countries. It highlights the importance of a legal framework recognizing healthy, adequate nutrition as a fundamental right, and identifies urban agriculture — an area of success for both nations — as a key strategy for pursuing sovereign, local, and sustainable food systems. The piece frames this as an opening for scientific diplomacy grounded in mutual respect and long-term partnership, presenting no empirical data or measured outcomes.

Ylva Wallinder · Local Environment · Europe

A study of Gothenburg, Sweden, examines the city council's shift over the past decade from associational (collective) urban gardening toward entrepreneurial gardening on municipal land, promoted through a scheme called "from garden box to hectare" that draws residents into entrepreneurial training while taking municipal gardening classes. Analyzing the consequences of this commodification of urban sustainability projects, the study finds that socio-economic resources and social relations both limit and strengthen entrepreneurial gardening practices and participants' quality of life, and that perceived competition among gardeners has turned urban gardening into a lonely, precarious, and individualized activity compared with the formalized associational gardening the municipality previously promoted. The finding points to a mismatch between the local government's sustainability visions and gardeners' actual experience.

Shaikh Tanveer Hossain · Organic Eprints (International Centre for Research in Organic Food Systems, and Research Institute of Organic Agriculture) · Asia

A report by Dr. Hossain discusses the transformation of organic farming through technological, ecological, and social innovation, citing examples including precision farming, community supported agriculture, biological pest control, and digital traceability systems. Case studies of an organic sack-garden for household nutrition, integrated rice-duck farming for pest control and soil health, and a Zero Energy Cold Chamber (ZECC) for post-harvest storage are described as demonstrating low-cost, replicable models that improved smallholders' incomes and sustainability. The report cites the Asian Productivity Organization's "Green Productivity" framework as linking productivity gains with environmental stewardship across the Asia-Pacific region.

Ouiam Fatiha Boukharta, Loïc Sauvée, Fabiana Pena-Fabri, Leticia Chico-Santamarta, Luis Manuel Navas-Gracia · Cities · France

In Rouen, France, a two-level urban agriculture governance system—the metropolitan authority and the City of Rouen—was examined through 19 semi-structured interviews with project stakeholders. The two levels shared similar approaches to social aspects, education, fresh produce consumption, and the goal of long-term project viability, but differed in project selection criteria: the metropolis applied less strict requirements than the city regarding plot size and soil analysis.

Ayu Amanda Sulistiana, Titik Akiriningsih, Made Prasta Yostitia Pradipta · JELAJAH Journal of Tourism and Hospitality · Indonesia

A descriptive qualitative study—based on observation, interviews, and documentation—examined community empowerment and environmental management practices in Kampung Glintung Go Green, a community-based tourism village in Malang City, Indonesia. It found organizing structures, training and education, active participation, cooperative and local-economy support, awareness campaigns, monitoring and evaluation systems, and partnership-building; environmental management incorporating urban farming promotion improved environmental quality and community awareness, but the study identified needs to strengthen education, partnerships, technology use, regular evaluation, and promotional efforts going forward.

Krishna R. Reddy, Jaqueline Rojas Robles, Suzane A. V. Carneiro, Banuchandra Nagaraja · Journal of Environmental Engineering and Science · United States (Chicago)

Using an existing hydroponics system in Chicago as a case study, this life cycle assessment (environmental impact via SimaPro, social and economic sustainability via a semi-quantitative approach) compared a hypothetical scaled hydroponics system against a scaled community garden serving the same number of users in the same area. The results show hydroponics systems present greater sustainability challenges than community gardens overall, though a hydroponics system incorporating LED lights was found to be more sustainable than the community garden; the authors call for future research to more accurately assess the differences between the two models.

Sarah Kakadellis, Herman D. Delgado, Russell Teall, R. Gándara León, Christopher W. Simmons, Edward S. Spang · Journal of Agriculture and Food Research · Global

This greenhouse experiment tested liquid food waste-derived digestate (FWDD) as a biofertilizer for community learning gardens, growing tomatoes (Solanum lycopersicum) under four treatments: potting medium alone, medium with synthetic mineral fertilizer, medium with compost, and medium with a compost-FWDD blend. The mineral-fertilizer control produced the highest total fruit yield, but total edible fruit yield and total fruit weight were similar between the control and the compost-FWDD blend, which produced the largest average fruit weight; compost and compost-FWDD treatments produced lighter, tarter—though not more acidic—tomatoes, and no detrimental soil effects from FWDD were observed, though the authors note further research is needed to assess social perceptions and life cycle impacts.