Research & reports

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.

Honoka TAHARA, Takafumi OISHI · 農村計画学会誌 · Japan

An internet-based questionnaire survey of students, faculty and staff of a Faculty of Agriculture in Japan examined the feasibility of introducing Community Supported Agriculture (CSA) into university-regional cooperation. Awareness of CSA was low and prior participation limited, but respondents tended to rate CSA favorably as a university-regional cooperation initiative; ordered logistic regression showed willingness to pay CSA membership fees was associated with occupation, prior experience (home delivery, farm work), interest in food, CSA awareness, favorable evaluation of CSA for cooperation, and intention to participate in non-purchasing CSA activities.

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.

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.

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.

Amelya Bella, Melinda Putri Sukmana, Aril Rada Candra, Riski Mahatir Tharuddin, Briliana Fara Ardiyanti, Rinjani Intan Maylani · Jurnal Aplikasi Sains dan Teknologi Agrisevika · Indonesia

At SDN Terusan 1 elementary school in Terusan Village, Gedeg District, Mojokerto Regency, Indonesia, a community service program run by the Faculty of Agriculture student executive board of UPN "Veteran" East Java introduced and taught microgreen cultivation—mustard greens (sawi), pakcoy, and water spinach (kangkung)—to build students' understanding of urban farming. Through socialization, discussion, and hands-on cultivation practice covering planting, care, and nutritional benefits, the program reported active student participation in the cultivation practice, improved practical skills, and increased student awareness of the importance of consuming fresh vegetables.

Otoadese D, Kamara I, Onyango E · International Journal of Environmental Research and Public Health · カナダ・アルバータ州

Community gardens are increasingly popular in Canadian cities and can be transformative spaces where immigrants develop self-reliant strategies for accessing culturally familiar, healthy food — yet many facilitators and barriers limit the engagement of racialized groups such as Black-identifying immigrants. Using a socio-ecological framework and a community-based participatory research approach, this mixed-methods study combined structured surveys (n = 119), in-depth interviews (n = 10) and two Afrocentric sharing circles, with participants recruited through African immigrant-serving community organisations in Alberta. Barriers at several levels of the socio-ecological model interacted to shape interest and engagement, while access to collective gardens was associated with significant benefits: maintaining healthy foodways, knowledge exchange, growing social capital, and community connections supporting overall wellbeing. The authors offer an accessible framework for addressing these barriers and for making urban agriculture initiatives more inclusive and culturally responsive.

Ville de Paris · Ville de Paris · France

Official Ville de Paris page defining shared gardens as green spaces cultivated and run by residents, intended as places of intergenerational and cross-cultural exchange. About 15 educational gardens host children from 28 Paris educational facilities (nurseries, primary schools, after-school centers). Residents wishing to open a new garden must form an association and contact the city's 'Main Verte' team.

Global Generation · Global Generation · United Kingdom

An article by Global Generation reflecting on a decade of the Skip Garden — a mobile garden built from reused waste skips — in King's Cross, London, describing how it grew from six or seven skips into a space with rooftop planters, a polytunnel, and areas for herbs, vegetables, fruit trees, and composting.

Luis Andrade · Quito Informa (Municipio del Distrito Metropolitano de Quito) · Ecuador

On 29 April 2025, Quito's Metropolitan Council approved the 'Healthy Food Neighborhoods' ordinance, allowing community gardens on idle municipal land and requiring new housing developments to include garden space. The city currently has about 2,000 urban gardens and aims to double that number by 2030. ConQuito, the municipal economic development agency, will provide seeds and training, and produce will be sold through organized bioferias to avoid affecting existing markets.

Municipalidad de Guayaquil · Alcaldía de Guayaquil · Ecuador

An official Guayaquil municipal article on its 'School-Community Gardens Program,' which has set up 57 gardens (50 in schools, 7 community/family gardens) providing free seeds and fertilizer. The program has benefited 67,020 people to date, with participating families reporting household savings of up to USD 80 per month.

Chmielewski J., Wszelaczyńska E., Pobereżny J., Florek-Łuszczki M., Gworek B. · Sustainability · Poland

The study sampled 112 items — 72 vegetable and 40 fruit — from 16 allotment gardens in Warsaw and measured Fe, Mn, Zn, Cu, Pb and Cd. Vegetables accumulated markedly more heavy metals than fruits, and leafy vegetables grown near high-traffic roads carried the highest Pb, Cd and Zn. Lead exceeded permissible limits by six to twelve times and cadmium by one to thirteen, leading the authors to advise against growing tomatoes in urban settings. Only trace amounts appeared in fruits, and the Hazard Index rated the fruits alone as safe. The paper calls for continuous monitoring of urban garden soils, remediation of contaminated ground and safer growing practices.

Saputra A., Abdoellah O., Utama G., Wulandari I., Mulyanto D., Suparman Y. · Sustainability · Indonesia

Interviews and a survey examined how residents of Bandung perceive the ecosystem services of homegarden-based urban agriculture. Residents themselves judged the gardens' contribution to overall food security to be only supplementary, even though they supply fresh produce. Their value was widely recognised elsewhere: biodiversity conservation, microclimate regulation, disaster risk reduction, social cohesion and mental well-being. Limited space, lack of knowledge and competing land uses emerged as the barriers, and the authors conclude that education and policy support are the levers for wider uptake.

Alessio Russo · Land Use Policy, 149, 107410 · Global

A conceptual paper extending the ecological-restoration paradigm of rewilding into urban and food contexts, arguing that multispecies-based 'urban rewilding' can simultaneously enhance climate resilience, biodiversity recovery, food-system robustness, water sensitivity and community participation. It also flags trade-offs such as green gentrification and land availability, opening new debate within productive green infrastructure.

Puneeth G. M., Gowthami R., Katral A., Laxmisha K. M., Vasudeva R., Singh G. P., Archak S. · Scientific Reports 14:10712 · India

Documents 671 landraces of 60 crops across 24 sites in the Western Ghats, identifying suitability, cuisine, medicinal use, cultural significance and economic value as determinants of on-farm conservation by custodian farmers.

Monsur M., Mansur M., Trina N.A., Cosco N. · International Journal of Environmental Research and Public Health, 21(11):1485 · United States (Texas)

A randomized trial in eight Lubbock County childcare centers (149 children) testing standardized raised-bed garden intervention on preschoolers' fruit and vegetable knowledge and liking. Shows that collaborative childcare-garden programs can improve vegetable preferences even in semi-arid climates.

横浜市 環境創造局 · 横浜市 都市農業振興基本法に基づく地方計画 · Japan

Yokohama's latest five-year local plan under the Urban Agriculture Promotion Act, organising policies for sustainable farming, farmland preservation, citizen farms, harvest experiences and local consumption building on Midori Up and Megumi-no-Sato programmes.

東京都国分寺市 · 国分寺市 環境報告書 · Japan

Kokubunji's annual environmental report under the basic environment plan, evaluating urban farmland preservation, local consumption and biodiversity while documenting municipally supported programmes such as the Citizen Agriculture University and citizen farms.

Giyarsih S.R., Armansyah, Zaelany A.A., Latifa A., Setiawan B., Saputra D., Haqi M., Fathurohman A., Lamijo · International Journal of Urban Sustainable Development · Indonesia (Bandung)

This study finds that Bandung's Buruan SAE urban farming programme meaningfully contributes to household food security, with diverse produce meeting community food needs, some participants achieving farming independence, and urban agriculture providing supplementary income. The research documents a transformation in citizen attitudes toward farming as a viable urban livelihood.

Johansson J., Roitto M., Steiner B., Alakukku L. · Cleaner and Responsible Consumption (Elsevier) · Finland

This Finnish study evaluates the co-creation of urban agriculture in residential settings with housing companies, finding that flexible modular planning and availability of key site actors are critical success factors for participatory urban farming initiatives.

Maphosa M., Moyo P. · Frontiers in Sustainable Cities · Zimbabwe (Bulawayo)

This study evaluated climate vulnerability in Bulawayo's urban food system and found that the city's 2007 urban agriculture policy lacks climate change provisions, institutional coordination is weak, and extension services are severely understaffed, though NGO-led innovations and national conservation agriculture programs offer promising pathways for resilience.

Abriana Segal, Niya Khanjar, Julie Yang, Kelsey Brooks, Marcus Williams, Neith Little, Andrew Lazar, Rachel E. Rosenberg Goldstein · Urban Agriculture & Regional Food Systems · United States (Baltimore)

This study surveyed urban farms and community gardens in Baltimore, Maryland, to document irrigation practices, water sources, and interest in rainwater harvesting. Most sites were concerned about water availability yet all had access to city water; 27% were already harvesting rainwater and 54% were interested, and the authors suggest rainwater harvesting, food safety, and education programs could increase safe use of this water source.

· Urban Ecosystems · Germany (Dresden)

A case study based on two transition experiments in Dresden, analyzing how edible cities are initiated, innovated, and accelerated.

· Journal of Environmental Studies and Sciences · USA

A study examining how school gardens can promote positive youth development and social justice values among participating youth.