Research & reports

Evans D.L., Falagán N., Hardman C.A., Kourmpetli S., Liu L., Mead B.R., Davies J.A.C. · Ecosystem Services, 54, 101405 · Global

A systematic review synthesizing 157 peer-reviewed articles that compares which ecosystem services are delivered by different types of urban agriculture and green infrastructure. It finds that community gardens, green spaces and parks deliver the most diverse services, that local climate and air-quality regulation are best provided by green infrastructure alone, and that biological control and genetic-diversity maintenance peak when green infrastructure is combined with urban agriculture.

Ramirez-Villegas J., Khoury C.K., Achicanoy H.A., Diaz M.V., Mendez A.C., Sosa C.C., Kehel Z., Guarino L., Abberton M. · Nature Plants 8:491-499 · Global

A global gap analysis predicting distributions of over 70 landrace groups across 25 crops, finding a mean 63% represented in genebanks and major collecting gaps in South Asia, the Mediterranean, the Andes and Africa.

UN-Habitat · UN-Habitat · Global

Frames the role of urban-rural linkages in biodiversity conservation, presenting integrated urban-rural governance through ecological corridors, green belts and farmland protection.

UNCCD · UNCCD (UN Convention to Combat Desertification) Working Paper · Global

A policy analysis of how urban expansion cascades into rural land degradation and ecosystem loss, arguing for urban-rural linkage governance to drive land restoration and combat desertification.

Biskupovic C., Maurines B., Carmona R., Canteros E. · Frontiers in Sustainable Food Systems · Chile

This qualitative comparative study of community and shared gardens in France and Chile found that small-scale collective gardening fosters human–nonhuman relationships and the transmission of caring practices, thereby promoting ecological citizenship and more sustainable forms of community living.

Jayakody S.K., Basu M. · Blue-Green Infrastructure Across Asian Countries (Springer Singapore), pp. 223–249 · Sri Lanka (Kandy)

This book chapter examines how traditional homegardens in the Kandy District function as integrated urban agroforestry systems supporting biodiversity conservation, physical exercise, and mental health, while noting that increasing urbanization threatens their long-term sustainability.

· Local Environment · Global

Analyzes urban community seed-sharing and seed-swap initiatives as social practices and how they contribute to just transitions to sustainability.

Aleksandra Nowysz, Łukasz Mazur, Magdalena Daria Vaverková, Eugeniusz Koda, Jan Winkler · International Journal of Environmental Research and Public Health · Global

This study explored urban agriculture (UA) as an alternative source of food and water security, employing a mixed-method approach including literature survey, case studies, and comparative analysis. It compared 25 existing projects in the global north, including allotment gardens, community gardens, and urban farms, categorizing UA into architectural-urban, ecological, social, and economic aspects. The analysis concluded that UA fulfills economic, social, and environmental functions, aligning with the concept of sustainable development.

Pierrette Hondagneu‐Sotelo · Journal of Latin American geography · Global

This edited book explores how various displacements lead people to re-engage with plant life, creating meaning and sustaining biodiversity. It examines how gardening, seed saving, and cooking restore social and cultural continuity, connecting past and present. The volume, rooted in anthropology, discusses plant-human engagements in movement ("itineraries") and emplaced efforts of belonging ("sanctuaries").

Donald Gray · DOAJ (DOAJ: Directory of Open Access Journals) · Global

A 2022 paper examined the role of school gardens in addressing children and young people's decreasing experiences with natural environments, increasing mental health concerns, and growing worries about global environmental problems. Drawing on three initiatives from an original pilot school garden program, the paper presents evidence that garden-based learning can positively contribute to improved health and wellbeing, learning, and environmental awareness.

Alejandro Castillo Nolte, Sascha Buchholz, Nadja Pernat, Monika Egerer · Frontiers in Sustainable Food Systems · Global

This study investigated diurnal and nocturnal temperature ranges, and daily maximum and minimum temperatures in 18 urban gardens during the peak summer agricultural growing season. It analyzed how temperatures correlated to local land cover factors within the garden, surrounding landscape imperviousness at various spatial scales, and environmental justice indicators of garden neighborhoods. Nocturnal temperature range was negatively correlated to landscape imperviousness, with the relationship decreasing in strength with increasing spatial scale.

Joan Casanelles‐Abella, Simone Fontana, Bertrand Fournier, David Frey, Marco Moretti · Ecological Applications · Switzerland (Zurich)

This study in 23 urban gardens in Zurich, Switzerland, examined feeding niche partitioning between wild bees and honeybees. Researchers found that feeding niche partitioning increased with wild bee species richness and in sites with lower landscape-scale resource availability, which also had lower honeybee abundances. However, beekeeping intensity at local and landscape scales did not directly influence community feeding niche partitioning or wild bee species richness, suggesting direct competition for resources was not a main driver for the wild bee community.

Alan Dorin, Tim Taylor, Adrian G. Dyer · PLOS Sustainability and Transformation · Global

This study used an agent-based model to explore the impact of insect flower constancy, heterospecific pollen transfer, and crop patch size on pollination in urban farms. It found that highly constant pollinators were most effective in the smallest patches, while less constant insects performed better in intermediate-sized areas. The model identified an optimal "Goldilocks zone" for pollination around 11m x 11m, suggesting that collaborative management to increase single-crop patch size could improve pollination in community farms.

Victоria Kryuchkova, Vitaly Donskih, Yuri Gorbunov, Tatiana Aniskina, О. С. Волкова · АгроЭкоИнфо · Russia (Moscow)

This 2011-2022 study at the MBG RAS laboratory in Moscow, Russia, assessed 20 wild apple tree species for their landscaping potential. While Malus baccata, M. neidzwedzkyana, M. x zumi, M. sargentii, and M. mandshurica were identified as promising for urban conditions, M. ioensis showed low frost resistance and M. fusca and M. sievesii were susceptible to scab infestation, limiting their suitability for urban gardening in Moscow.

Iffat Jahan Nur, Motaleb Hossain Sarker, Tanıa Hossain, Tasnia Ferdous, Sazedatur Rahman, Benazir Iqbal, Md. Golam Jilani Helal, Md. Forhad Hossain · Current Research in Environmental Sustainability · Bangladesh (Dhaka)

An experimental survey of twenty rooftop gardens in Mohammadpur and Dhanmondi, Dhaka, Bangladesh, examined four categories of ecosystem services using a Rapid Assessment Checklist with 47 indicators. The average score for total ecosystem services was 50 ± 12 out of 100, indicating an intermediate performance. Cultural services scored highest at 60 ± 14, while provisioning services scored lowest at 41 ± 13.

Felix Hellinger, Dorothee Benkowitz, Petra Lindemann‐Matthies · Education Sciences · Global

Students' knowledge about the growth of food plants and their ideas for school garden design were investigated among 2107 fifth and sixth graders (mean age 12.3 years). About 40% of students believed carrots and radishes grow in underground bunches, and nearly 50% thought kohlrabi also grows underground. Girls performed better than boys, and increasing age and gardening experience had a positive effect on answers.

Monika Egerer · Anliegen Natur · Global

A global survey explored the importance of urban gardens during the Covid-19 pandemic. The survey showed that gardening is an effective outdoor strategy for stress relief, food provision, and increasing feelings of safety during uncertain times.

Ivana Chaloska · South East European Journal of Architecture and Design · Global

This master's thesis conducted qualitative empirical research for the multidisciplinary conceptualization of urban public space, focusing on ecological and social sustainability and socio-spatial relations. Through an inter-contextual analysis and a case study highlighting urban community gardens, the research supports a conceptual design of public space that can function as activism for rethinking existing structures or as a continuous process of socio-spatial relations.

Setha Low · · Global

This chapter examines environmental sustainability and the greening of public spaces in Paris and New York City, tracing the history and impact of interventions like community gardens, urban agriculture, and sustainable parks. These initiatives contribute to ecological sustainability by fostering stronger communities, supporting social reproduction, and promoting environmental justice. The study highlights how human ecological planning and ecosystem services assessments provide scientific strategies for enhancing sustainability in public space design.

Linh Nguyen Ha, Luyen Nguyen Thi · Journal of Science Educational Science · Global

This theoretical paper addresses the limited use of natural contexts in preschool environmental education, particularly regarding biodiversity in school habitats. It defines the concept and scope of biodiversity knowledge suitable for preschoolers and proposes methods for organizing biodiversity discovery activities in preschool vegetable gardens. The aim is to help preschool teachers maximize the benefits of school gardens for scientific discovery activities.

Anders Blok, Amanda Krog Juvik, Anna Helene Kvist Møller, Jonas Skjold Raaschou-Pedersen, Jakob Laage‐Thomsen · City and Community · Denmark

This study mapped the group styles, spatial intergroup networks, and cultural-political value landscapes of 130 urban green communities across the four largest cities in Denmark using digital methods. The results showed that civic greening groups are neither neighborhood-based endeavors nor hubs of social movement mobilization, but rather geographies of co-engagement that span cities while also forging new senses and practices of place.

Werner Rolf · · Global

This work introduces a typology for spatial planning to integrate peri-urban farmland into Green Infrastructure, aiming to develop multifunctional open space networks. The typology, based on an inter- and transdisciplinary approach and evidence synthesis, suggests that peri-urban farmland has potential to address urban challenges like biodiversity conservation and climate change adaptation.

Melissa Parks, Hope P. Hershey, Skye Sobzack, Mercedes Tichenor · Kappa Delta Pi Record · Global

This paper describes the benefits of elementary school gardening experiences and offers suggestions on how to nurture positive environmental attitudes among children through garden-based learning activities.

Sina Razzaghi Asl, Hamil Pearsall · Land · Global

This systematic review evaluated how different modes of governance support ecosystem services (ES) in small-scale urban green infrastructure (UGI). Governance was assessed in six types of UGI: small parks, community gardens, vacant lands, rain gardens, green roofs, and street trees, examining the characteristics of four governance approaches: adaptive, network, mosaic, and transformative. Each governance mode was found to be potentially effective for managing the ES of certain small-scale UGI. The study highlights knowledge gaps at the intersection between governance arrangements and ES in small-scale UGI.

Monika Egerer, Brenda B. Lin · CABI Reviews · Global

This review evaluated ecosystem services (ES) within urban agriculture (UA) systems and the trade-offs between these services. Urban agriculture provides many benefits and environmental services such as food provision, social cohesion, and climate regulation. However, it was shown that management decisions can create trade-offs between ecosystem services, where an increase in one service may potentially reduce the system's ability to provide another service at a desired level.