Research & reports

Cassandra Tytler · · Global

A book chapter examines the intersection of place-based art practices, ecological attunement and relational wellbeing through Think Like a Worm, a project using multisensory, embodied approaches that transformed a community garden into a sensory art space. Drawing on feminist and anti-colonial scholarship, it argues for a "politics of location" that acknowledges inequities in environmental impacts and knowledge production.

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.

Pires M. J. F. C. D. S., Ribeiro S. A., Ferreira L. S., Antunes L. F. S., Uzeda M. C., Correia M. E. F. · Environmental Monitoring and Assessment · ブラジル・リオデジャネイロ市

A survey testing whether agroecological urban agriculture plots — described as remnants of biodiversity that also provide ecosystem services, food security and income — can shelter soil fauna in an urban setting. Fifteen areas forming a gradient from different plantations to forest were selected in the Campo Grande and Vargem Grande neighbourhoods of western Rio de Janeiro. At each area a transect of three sampling points 5 m apart was established; soil mesofauna was sampled with a specific auger from the litter layer down to 10 cm, and earthworms by the TSBF method at 0–10 cm. Soil fertility and texture were analysed at each point, landscape features were measured within buffers around each site, and multivariate techniques including principal component analysis were used to identify which soil attributes and landscape features most affect the occurrence and abundance of soil invertebrates.

Kelley AT, Boger R · EcoHealth · 米国・ニューヨーク市ブルックリン

A survey of mosquito larval abundance and genera across 22 community gardens in Brooklyn, New York. The authors frame these gardens as social spaces providing food sovereignty to many New Yorkers, while the arrival of Aedes albopictus and the longtime presence of Culex pipiens make socialising in them more dangerous — Ae. albopictus is associated with dengue, Zika and chikungunya, and Cx. pipiens is a longstanding West Nile virus vector. Because both breed in human-made plastic containers, knowing their preferred container types and locations can inform gardeners' best management practices. Non-purposeful container types and lower total volumes of water were significant predictors of higher mosquito densities, though these variables did not predict egg-laying preference.

Bauer W., Titz A. · Nature-Based Solutions · Malawi (Lilongwe)

Urban Nature-based Solutions (NbS) are promoted globally as multifunctional and cost-effective, and municipal interest is growing in cities of the so-called Global South. Yet research remains clearly biased toward the Global North, with particularly few studies on cities in Sub-Saharan Africa — leaving a high risk that maladapted NbS, modelled on examples from elsewhere that do not meet local requirements, get adopted. This article examines the barriers to adopting urban NbS in Malawi's cities and the opportunities for successful implementation, drawing on qualitative data (workshops, narrative expert interviews, group discussions) gathered over five research stays in Lilongwe between 2022 and 2024, and analysing in detail the strategies used by those implementing the Lilongwe Ecological Corridor Initiative (LECI), a large-scale NbS in the capital.

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.

Rahimi E., Jung C. · Urban Agriculture & Regional Food Systems · Global (major cities)

Global assessment of urban agriculture's potential to support pollinator-dependent crops in major cities, analyzing contributions to biodiversity and food security.

Anja Egerer · People and Nature · Global

Research defending the value of urban community gardens, examining citizen participation in biodiversity conservation and the role of gardeners as central actors in nature conservation projects.

Kong · People and Nature · Global

A study examining how a school garden combined with instructional interventions fosters children's interest in nature.

· Agroecology and Sustainable Food Systems · Global

Investigates how cultural ecosystem service experiences in urban community gardens relate to management practices and agrobiodiversity, finding experiences vary among gardeners and correlate with local ecological knowledge.

Dong Wang, Peiyuan Xu, Bo-Wen An, Qiuping Guo · Frontiers in Ecology and Evolution · Global

This paper introduces a conceptual framework for urban green infrastructure (UGI) to integrate ecological principles, urban planning, and adaptive management for resilient urban landscapes. UGI aims to enhance ecological connectivity, restore ecosystem functions, and provide habitats, emphasizing multifunctionality, connectivity, diversity, and accessibility. Global case studies demonstrate UGI's effectiveness in biodiversity conservation and its contribution to sustainable urban development through ecosystem services. Challenges for UGI include funding constraints, institutional fragmentation, and equity issues, requiring innovative financing, community involvement, and policy innovations.

Sun Yeong Lee, H. S. Lee, Yong-Han Yoon, Jin-Hee Ju · Journal of people, plants, and environment · Global

This study analyzed the growth and quality of cherry tomatoes (CTs) and nasturtiums planted at different ratios (CTs only, 2:1, 1:1, 1:2, nasturtiums only) on rooftops and walls in building-integrated urban agriculture. Cherry tomatoes planted alone showed significant growth compared to companion planting. The 2:1 ratio of CTs to nasturtiums (C2N1) resulted in the highest plant weight and sugar concentrations for CTs on rooftops and walls, and nasturtiums also had larger leaves and flowers in this ratio. CTs generally grew better on walls than rooftops when companion planted with nasturtiums.

Amal Ibourk, Lauren Wagner, Deb Morrison, Syrena Young, Justin Milledge · Science and Children · Global

This article describes a fifth-grade climate change action project involving building a community garden, aligned with science standards. Students learned about monarch butterfly migration, life cycles, and greenhouse gases by planting milkweed. The article offers educators ideas and suggestions for implementing such a project within a school community.

Brittany R. Kruger, Joshua Sackett · PLoS ONE · Global

This study assessed abiotic and biotic factors affecting sweet corn production in six arid urban agricultural plots with varying shade levels (n=18 plots). Corn successfully matured in 50% of the plots. Microbial richness and diversity were high and not a hindrance. Corn success metrics positively correlated with average daytime light intensity (r=0.74-0.84) and soil organic matter (r=0.77-0.89), but negatively correlated with soil calcium, magnesium, sodium, and sulfate (r=-0.71 to -0.90).

Cecil C. Konijnendijk · Edward Elgar Publishing eBooks · Global

This chapter examines the diverse uses of urban green spaces, encompassing recreation, biodiversity conservation, public health, and regulatory ecosystem services, with food production also re-emerging. Changing urban populations, including cultural diversity and ageing, have altered demands and uses. The study identifies a critical need to manage potential conflicts and trade-offs among these varied demands, despite many uses being able to coexist.

Nedžada Zahirović, Sabina Trakić, Pavle Krstić, Lejla Biber · Radovi Šumarskog fakulteta Univerziteta u Sarajevu · Bosnia and Herzegovina (Kakanj)

This project aims to develop a conceptual plan for adapting the existing flat roofs of three towers (S-1, S-2, S-3) built in the 1980s in the Municipality of Kakanj, Bosnia and Herzegovina, into green roofs. This plan seeks to strengthen and expand urban agriculture, bringing ecological, social, and economic benefits, and promoting a healthier lifestyle through daily contact with greenery.

María Amparo Gaona Flores, Martín Videla, Gerardo Serra, Luis Narmona, Jorge Gabriel Barbero, Milene Rocío Barcenilla, Evangelina Beatriz Argüello · Agroecology and Sustainable Food Systems · Argentina

This study evaluated botanical insecticides as a technological device for synthetic input substitution in peri-urban horticultural systems of central Argentina. A Participatory Action Research (PAR) framework was used to assess the performance of garlic extracts (GE) for pest and natural enemy regulation in lettuce crops in conventional and agroecological contexts. Through three PAR cycles, GE effectiveness on aphids, thrips, and natural enemies was observed, and context-specific adaptations were noted: GE was useful near harvest in conventional systems and highlighted biodiversity's relevance for system redesign in agroecological systems.

Consultant Engineer, 107B El. Venizelou str., 73132, Chania, Crete, Greece, John Vourdoubas · International Journal of Current Science Research and Review · Global

This review emphasizes the multiple environmental, economic, energy, and social benefits of green roofs installed on urban buildings. Green roofs are reported to remove atmospheric pollutants, release oxygen, mitigate the urban heat island effect, reduce building energy consumption, improve rainwater management, and promote urban agriculture. Their construction is financially subsidized in several countries due to these benefits, which contribute to urban sustainability and resident well-being.

Deborah Dutta, Sanjay Chandrasekharan · Environmental Education Research · Global

This study, based on a year-long facilitation of a school terrace-garden in a metropolitan city, outlined how situated and embodied interactions can foster an understanding of diverse ecological practices. It indicated that multi-modal sensorimotor experiences and the possibility of sharing these with others motivate children to expand their sphere of environmental activities beyond the site of learning. Students extended their care-based interactions with the garden to their communities and broader ecological issues.

Nicole E. Rafferty, Christopher T. Cosma · Journal of Ecology · Global

A literature search on nature-based solutions (NBS), including urban greenspaces and agriculture, found that 0%–3% of papers considered pollinators or pollination, with 12.5% in agricultural NBS papers. The study emphasizes that NBS success depends on resilient pollinator communities and calls for identifying keystone plants and pollinators to promote NBS functioning under future climatic conditions. It advocates for phylogenetic trait-based analyses to understand keystoneness.

Anjoulie Brandner, Karolina Taczanowska, Brenda Maria Zoderer, Christoph Schunko · Urban forestry & urban greening · Austria (Vienna)

A survey of 458 respondents in Vienna, Austria, analyzed urban wild food foraging locations and preferences for urban green spaces (UGS). 1239 foraging locations were identified across 9 UGS types, with forest and meadow landscapes, parks, and UGS mosaics being most utilized. Foragers' major concerns were contamination from traffic and dogs.

Gustavo Nagib · Atlantis highlights in social sciences, education and humanities/Atlantis Highlights in Social Sciences, Education and Humanities · Global

This qualitative study, conducted between 2016 and 2022 in São Paulo, Paris, and Lausanne, explored the relationship between urban agriculture, activism, and the right to the city. It found a convergence between discourse and practice in intraurban horticulture, emphasizing public space reappropriation, social bond strengthening, urban biodiversity promotion, and a new city-nature relationship. Community gardens in all three cities serve as hubs of collective experience, offering a critique of contemporary cities and an alternative to urban life.

Ankur Jyoti Dutta · International Journal of Engineering Applied Sciences and Technology · Global

This paper analyzes urban resilience by examining urban landscapes and nature-based strategies. It aims to understand how designers and policymakers can identify and assess urban environmental risks to reduce vulnerability and exposure. The study emphasizes integrating smart policies and frameworks to make urban landscapes part of an adaptive resilience strategy for future resilient cities.

Erin VanLaningham · · Global

This concluding chapter emphasizes an ecology of the common good, highlighting the interconnectedness required for flourishing campuses, communities, and thought systems. It discusses four key aspects: deep ecology, ecology and economy, the home place, and community gardens and gardening. The chapter suggests that stewarding resources and educating for vocation can help prioritize diversity, justice, and care for all.

Mitchell McLarnon · · Global

This chapter describes the practice, processes, and ethical tensions of using cell phones for visual data collection, representation, and analysis in school/community garden research projects. The findings suggest that while gardens and cell phones have the potential for enhancing experiential learning, increased well-being, and ecological awareness, their use needs to be highly contextualized within critical discussions related to settler colonialism, consumerism, neoliberalism, and (green) gentrification.