Research & reports

Stacy M. Philpott, Azucena Lucatero, Peter Bichier, Monika Egerer, Shalene Jha, Brenda B. Lin, Heidi Liere · Ecological Applications · United States (California)

This study investigated natural-enemy-herbivore co-occurrence networks associated with Brassica oleracea in 24 urban vegetable gardens in the California, USA central coast region. Increased floral richness and B. oleracea abundance were associated with increased parasitoid and non-aphid herbivore abundance, and increased network vulnerability. Increased vegetation complexity suppressed parasitoid abundance but boosted network vulnerability. High agricultural land-use cover around urban gardens was associated with lower predator, parasitoid, and non-aphid herbivore abundance, lower natural-enemy:herbivore ratios, lower interaction richness, and higher trophic complementarity.

Miriam C. Dobson, Christian Reynolds, Philip H. Warren, Jill L. Edmondson · British Food Journal · United Kingdom

This study investigated the well-being benefits of urban horticulture in allotments in the United Kingdom. 163 volunteers in England and Wales kept a year-long allotment diary, and unprompted comments from 96 of these gardeners were analyzed. Participants recorded high levels of social and community activities, including sharing surplus food, knowledge exchange, interaction with wildlife, emotional connection to their allotment, appreciation of time spent outdoors, and aesthetic delight in the natural world.

Peter Loxley · · Global

This chapter presents three topics to help teachers guide children in understanding the scientific concept of interdependence, observable in school gardens and other outdoor learning areas. It outlines a progression from Key Stage 1, where children explore plant growth conditions and animal feeding, to lower Key Stage 2, focusing on plants as food producers and food chains/webs, and finally to upper Key Stage 2, where students learn about dependence and competition for resources within ecosystems. Subject knowledge for teaching this concept is provided.

Mohamed Ikhwan Nasir Mohamed Anuar, Saiful Arif Abdullah · PLANNING MALAYSIA · Malaysia (Kuala Lumpur)

This study explored the typologies and reappropriation of residual spaces under elevated highways in Kuala Lumpur, Malaysia, using site observation, document analysis, and expert interviews. Two main typologies of residual spaces were identified: easily accessible and hard-to-access. Experts suggested that play lots, recreational lots, and community gardens were suitable for easily accessible spaces, while semi-natural areas and functional landscapes were suitable for hard-to-access spaces.

José́ G. Vargas-Hernández · Practice, progress, and proficiency in sustainability · Global

This chapter analyzes the implications of urban sustainable growth, development, and governance structures for revitalizing open vacant spaces in agriculture and farming. Following an extensive literature review, the authors used critical socio-ecological analysis to identify key issues, trends, practices, and implications of urban vacant spaces concerning sustainable urban growth, urban agriculture use, and collaborative governance for revitalization. It concludes that transitional use of vacant land should be employed for developing sustainable green cities, but urban vacant spaces require stimulated utilization for revitalization purposes.

Kit Prendergast · Pacific Conservation Biology · Australia

The African carder bee, Pseudoanthidium (Immanthidium) repetitum, first recorded in Queensland in 2000, has now been found in Western Australia, marking a significant distribution expansion. Three confirmed and one unconfirmed localities were identified in the Mandurah region, with abundant female specimens observed in one garden. The presence of this introduced species necessitates vigilance due to known negative impacts on native fauna and flora.

Layssa Kmiecik Layssa Kmiecik, André de Souza Lucca · Revista Gestão & Sustentabilidade Ambiental · Brazil (Curitiba)

This qualitative study, focused on the Cajuru Community Garden in Curitiba, Brazil, aimed to propose recommendations for projects promoting native Unconventional Food Plants (PANCs). Using bibliographic, documentary, field research, and surveys, it generated recommendations for communicating PANCs' qualities and for their sustainable cultivation and responsible consumption in urban community gardens.

Jakob Laage‐Thomsen, Anders Blok · Local Environment · Denmark

This article explores variations in civic engagement with urban sustainability politics by examining "urban green communities" in Denmark, including urban gardening and beekeeping. Using a conceptualization of civic and place-based material participation from pragmatic sociology, particularly Laurent Thévenot's work, the study traces translations between familiar attachments and public critiques within these communities. A comprehensive digital mapping exercise identified six civic modes of urban greening and their group engagement styles, with implications for care, justice, and democracy in sustainable city-making.

Monika Egerer, Benjamin Wagner, Brenda B. Lin, Dave Kendal, Kai Zhu · Landscape Ecology · Global

This study applied new and traditional methods to understand how vegetation structure and function indicators in urban community gardens vary with spatial scale. Traditional field sampling and UAV aerial imagery were used to assess vegetation structure (height) and function (species diversity, cover) at garden and plot scales. Results showed that garden vegetation characteristics vary with spatial scale, and plant species richness and vegetation cover related to UAV-derived imagery, but height did not.

Marie Davidová · Strategic Design Research Journal · Global

This article presents gigamaps and full-scale prototypes developed within the Systemic Approach to Architectural Performance (SAAP) research by design field. SAAP employs Time-Based Eco-Systemic Co-Design, involving both living and non-living agents, to develop theories and methods through experimental practice. Gigamapping serves as a tool to map and generate complex relations across environmental, societal, and cultural aspects in collaborative design-research processes, aiming to co- and re-design these complexities in "real life co-design laboratories."

Brandon García Rodríguez, José Andrés Martínez Machado, Reinier Lop Herrera, Reina Dayamí Reyna Reyes · Revista Científica Agroecosistemas · Cuba (Cienfuegos)

A study on the use of Meliponinos was conducted in two meliponarios in Cienfuegos province, Cuba, specifically in San Fernando de Camarones and Pueblo Nuevo. Interviews with bee owners and community members identified factors affecting the sustainable development of Meliponicultura within Urban, Suburban, and Family Agriculture systems. Findings indicated a tendency for the Melipona beecheii population to increase in both municipalities, and common factors affecting bees were identified.

J. M. Alomia-Lucero, Jorge Castro-Bedriñana, Doris Chirinos-Peinado · Advances in Science Technology and Engineering Systems Journal · Peru

This study designed and evaluated an agroecological system for a rooftop agricultural model in the high jungle of Peru, associating tomato plants (Rio Grande and Cherry varieties) with vegetable covers. The system demonstrated benefits for family food safety through pesticide-free tomatoes and created a plant barrier on roofs to reduce solar radiation. A new medium-sized tomato variety, suitable for the organic market, was also obtained through natural crossbreeding.

Eliana Camargo Nino, Sam R. Lane, Kanako Okano, Irvanu Rahman, Bo Peng, Hannah Benn, Christina Culwick Fatti, Gillian Maree, Samkelisiwe Khanyile, Carla-Leanne Washbourne · Occasional paper · South Africa

This paper aimed to understand urban agriculture within the green infrastructure network in the City of Johannesburg, South Africa, and identify ecosystem services delivered by maintaining and investing in these assets. A multi-method approach was used to identify interlinkages between urban agriculture and social, economic, and environmental systems, validate them with stakeholder input, and visualize them through spatial analysis of food gardens. Urban agriculture was shown to enhance food security, provide economic opportunities, and strengthen ecosystem services such as climate change mitigation and disaster resilience.

Heidi Liere, Monika Egerer, Carly Sanchez, Peter Bichier, Stacy M. Philpott · Frontiers in Sustainable Food Systems · United States (California)

This study surveyed 187 gardeners from 18 urban community gardens in California's central coast to investigate how socio-demographic factors affect pest reporting and management practices. Most gardeners reported pests, with ethnicity, time spent in gardens, and agricultural employment influencing reporting likelihood. The majority used curative, non-synthetic practices, but the likelihood of using curative practices varied by gardeners' ethnicity, time spent in gardens, and gender.

Ines Babnik · IntechOpen eBooks · Global

This paper discusses how historical gardens, from ancient Mesopotamia to the Renaissance and Baroque eras, have shaped human living environments and incorporated green elements. It proposes that studying the motifs and innovations of these historical gardens can offer inspiration and possibilities for the design and development of present and future urban horticultural gardens.

In-Kyoung Hong, Hyung-Kwon Yun, Young-Bin Jung, Sang-Mi Lee · Journal of people, plants, and environment · Global

To derive indicators for assessing the service value of educational farming experiences using school gardens, literature review, the Delphi method, exploratory factor analysis, and the analytic hierarchy process (AHP) were employed. The study classified indicators into four criteria: educational value, health value, economic value, and ecological and environmental value, comprising 13 items and 33 sub-factors. Experts rated educational value as the most important, followed by health, ecological and environmental, and economic values.

Noiry Pérez Pompa, Santa Laura Leyva Rodríguez · Sinergia Académica · Cuba

A diagnosis of farms infested by Dichrostachys cinerea (marabú) in urban and suburban agriculture was conducted at Los Téllez farm in Becerra, Las Tunas municipality, Cuba. Soil quality indicators for reddish-brown Fersialitic soils over granitoids were evaluated across four land-use systems: two infested by D. cinerea and two agricultural systems cultivated for 10 years after marabú deforestation. Results showed that D. cinerea systems exhibited the highest soil quality index, based on organic matter, bulk density, and earthworm biomass. Conversely, cultivated systems achieved the lowest accumulation of organic carbon, oligochaete density and biomass, and total porosity.

É. Nagy · Journal of Applied Technical and Educational Sciences · Hungary

A test was administered to 800 Hungarian science teachers to gather their opinions on their habits of going out into nature while teaching. This study aims to summarize the results of this test, which also extends to species diversity matters such as examining school gardens or nearby trees.

Liu Yu, Zhi JIANG, Hao-sen WANG · 自然资源学报 · China (Beijing)

This study analyzed the spatial differentiation of agricultural regional functions in Beijing, China, using data from 184 streets and towns. It found that agricultural regional function generally increases from the urban core to the far suburbs, but significantly declines in the urban-rural fringe extended area, leading to a loss of spatial development constraints. Land factors, particularly location and house prices, were identified as key inhibitors of agricultural regional function, especially in low-scoring areas.

Angela Oyilieze Akanwa, H. C. Mba, E. B. Ogbuene, M. U. Nwachukwu, Charles C. Anukwonke · Apple Academic Press eBooks · Global

This chapter explores the potential of intensive agroforestry and environmental greening as measures to minimize climate change. It details agroforestry components such as urban agriculture, all-season farming, and forest conservation, alongside legislative actions against tree felling. Environmental greening measures include land surface greening, landscaping, gardening, and horticulture, with legislative efforts to minimize land exposure. These practices are presented as efficient ways to reduce greenhouse gas effects on the ozone layer and balance the earth's heat budget.

Effrosini Melissourgou, Nefeli Kassari, Irene Manoukaraki, George Melissourgos, Amane Awir, Irene Vergaki, Yiannis Dramitinos, Ariadne Delilai, Laith Yazi, Nektarios Tsagliotis · Zenodo (CERN European Organization for Nuclear Research) · Global

This report shares 12 years of knowledge and practice regarding companion planting in a school garden, where seed plants are prepared in a greenhouse and transplanted to raised beds. Through testing many combinations, it was found that some combinations help companion plants flourish, leading to improved vegetable crops and quality products for the community.

Andreas Michalsen · Zeitschrift für Komplementärmedizin · Global

Urban green spaces near residential areas are very important for the prevention of psychological, pulmonary, and cardiovascular diseases. Evidence suggests benefits from wild meadows, biodiverse urban gardening, and the presence of trees and naturally mixed forests. For individual therapy, targeted time in nature, especially in forests or biodiverse green spaces near water, is considered particularly effective.

Jeroen Schütt, Bas Amelung · · Europe

This research, conducted by the Science Shop of Wageningen University and Research, estimated the monetary value of ecosystem services in the Lutkemeerpolder, Amsterdam, which is slated for conversion into a business park. The study identified food production, air purification, recreation, and the effect of greenery on housing prices as key services, valuing them at 1.5 to 8.6 million euros per year. These ecosystem service values were not considered in the original decision-making twenty years ago, leading to a recommendation to reconsider the development plan.

Paul Sherfey · Budkavlen · Global

This study explores human-animal relationships, particularly with insects, in collective gardens through observation and digital research. It demonstrates that in collective gardens, cultivating community is as important as cultivating organic produce, and this community includes not only humans but also animal species like insects. The article analyzes why gardeners show interest in building hotels and cafes, sowing meadows, and arranging festivals for insects, especially bees, and contrasts discourses about bees with the lack of similar discourse about wasps, considering how different cultural heritages affect the value placed on species.

Mariella Camardelli Uzêda · Anais da Semana Científica Johanna Döbereiner · Brazil

This work aims to understand the origins of urban farmers in Rio de Janeiro, Brazil, and their traditions of cultivating and consuming spontaneous wild plants. It investigates how this knowledge of biodiversity has been preserved over time and influences current cultivation practices in areas like Colonia Juliano Moreira and Guaratiba. The study also explores opportunities to diversify agro-food systems with these wild plants to intensify ecosystem services such as pollination and biological pest control.