Research & reports

M.B. Gush, Tijana Blanuša, Lauriane Suyin Chalmin‐Pui, A. Griffiths, Elisabeth K. Larsen, Raghavendra Prasad, Marc Redmile‐Gordon, Chloe Sutcliffe · Plants People Planet · Global

This article presents an integrated and applied research approach to environmental horticulture from The Royal Horticultural Society. It emphasizes the importance of domestic and community gardens in the context of global environmental threats and discusses four primary research focus areas. These areas include responding to climate change, using plants for environmental regulation, sustainable resource management, and gardening for human health and wellbeing.

Akbar Rahimi, zahra nobar · Frontiers in Ecology and Evolution · Iran (Tabriz)

This study examined the effect of native plant-crop combinations on micrometeorological conditions and thermal comfort on urban agricultural land in Tabriz, Iran. Through ENVI-MET model simulations validated with field data, seven scenarios were identified. The findings showed that edible functions of deciduous plants increased with canopy height and diameter, improving thermal comfort in high-temperature conditions, and concluded that adopting this planting form would rejuvenate abandoned agricultural fields.

Kinga Albicz, Nóra Hubayné Horváth · 4D Tájépítészeti és Kertművészeti Folyóirat · Hungary

This study explores the landscape significance and unique features of former allotment gardens in Hungary, focusing on their vineyard origins and role in visual landscape protection. Using geographic information methods, the analysis revealed that a significant portion of allotment garden areas have a vineyard past. These areas contain unique landscape features at a density almost five times higher than the national average, with one-third of the country's vine and fruit production features concentrated there.

Vudipong Davivongs, Sigit D. Arifwidodo · Urban Ecosystems · Thailand

This study surveyed six orchards in Bangkok's Inner Orchard (BIO) to analyze forest structure and tree diversity. It found 98.64% forest canopy cover, an average tree height greater than common orchard trees, and mid-range diversity (Shannon index 2.53). Older orchards showed greater fruit tree species diversity, while newer ones had less.

Saskia Keesstra, J.A. Veraart, A. Verhagen, Saskia Visser, Marit E. Kragt, Vincent Linderhof, Wilfred Appelman, Jolanda van den Berg, Ayodeji O. Deolu‐Ajayi, Annemarie Groot · Sustainability · Global

This paper examines the role of nature-based solutions (NBS) in the transition towards sustainable, climate-resilient food systems. A conceptual framework was developed to assess NBS contributions, evaluating three types: intrinsic NBS utilizing existing ecosystems, hybrid NBS managing and adapting ecosystems, and inspired NBS consisting of newly constructed ecosystems. Inspired NBS, in particular, are shown to increase opportunities for achieving sustainable development in food systems, facilitating the transition and contributing to reaching SDGs by 2030.

Samantha Bosco, Bradley G. Thomas · Ethnobiology Letters · United States

The Skarù·ręʔ (Tuscarora) Food Forest Project is a community-based initiative in ancestral Haudenosaunee territories (New York State) demonstrating the contemporary contributions of temperate nut trees to Indigenous food systems. This project aims to address social justice concerns in agricultural science by providing a methodological testing ground for reconciliation-based and decolonial participatory action research. It expands ongoing food sovereignty, community health, and education initiatives, highlighting nuts as important, yet lesser-known, woodland foods.

Elena Todorova, Miglena Zhiyanski · One Ecosystem · Bulgaria (Sofia)

This study examined urban soil conditions and their potential for regulating ecosystem services in different functional zones of Sofia, Bulgaria. Data from 30 experimental plots (0-10 cm soil layer) were analyzed for heavy metal concentrations (Cu, Zn, Pb, Fe) and soil quality indicators (pH, CEC, total carbon, total nitrogen). The results showed differences in the capacity of green, industrial, residential, and urban agriculture zones to regulate and maintain soil quality, informing mitigation measures for soil protection and restoration.

Joanna Ziemkowska · Studia Ecologiae et Bioethicae · Poland

A historical outline of school gardens in Poland and their past and current possibilities of use were presented. In recent decades, school gardens had lost their educational appreciation, remaining in few schools primarily for aesthetic functions. This article discusses how school gardens may contribute to preventing "nature deficit" and provide a sense of closeness to nature even in urban realities, noting their re-emerging therapeutic potential (hortitherapy).

Asib Ahmed, Nazmun Nahar, Md. Shamim Hossain, Md. Shams Shahriar · Social Science Review · Bangladesh (Dhaka)

This study identified spatio-temporal changes in rooftop gardening (RTG) practices in the Dhaka Metropolitan Area (DMA) between 2016 and 2021, using digitized Google Earth images. The DMA experienced a moderate 15% increase in RTG during this period, with the western part having a larger RTG area than the eastern part. Planned residential areas showed higher RTG areas, while most government/non-government buildings had less RTG across 20 zones and the Dhaka Cantonment area.

Filipi Miranda Soares, Luís Ferreira Pires, Maria Carolina Garcia, Aline Martins de Carvalho, Sheina Koffler, Natália Pirani Ghilardi-Lopes, Rubens Silva, Benildes Coura Moreira dos Santos Maculan, Ana María Bertolini, Gabriela Rigote, Lídio Coradin, Uiara Bandineli Montedo, Débora Pignatari Drucker, Raquel Santiago, Maria Clara de Carvalho, Ana Carolina da Silva Lima, Karoline Reis de Almeida, Stephanie Gabriele Mendonça de França, Hillary Dandara Elias Gabriel, Bárbara Junqueira dos Santos, António Mauro Saraiva · Biodiversity Information Science and Standards · Brazil

The "Pomar Urbano" (Urban Orchard) project collaboratively monitors 411 native and exotic fruit-bearing plant species across all 27 Brazilian state capitals. Data collection uses iNaturalist Umbrella and Collection projects, with each capital having a specific collection project. The project involves a multidisciplinary team exploring biodiversity value, creating fruit-inspired products in creative industries, and developing recipes featuring frequently observed fruits in São Paulo to promote culinary diversity.

Amartya Deb · · Global

This chapter examines the multi-layered social construction of "ambivalent landscapes" in wild green spaces, connecting them to concepts like age-value in heritage conservation and guerrilla gardening. It argues that plant-built assemblages offer novel imaginations of urban nature and contribute to environmental justice. The chapter also explains that the isolation of spontaneous nature on buildings from a city's metabolic processes makes it difficult to value as green infrastructure, yet microsites of wild vegetation hold potential for greening resource-scarce neighborhoods.

Purificación Marín Sanleandro, Ana María Gómez-García, M. Arantzazu Blanco Bernardeau, Juana María Gil-Vázquez, María Asunción Alías-Linares · Forests · Spain

This study in the mid-plain of the Segura River (SE Spain) assessed soil properties and agricultural potential by collecting 68 arable soil samples. Statistical analysis revealed significant differences in organic carbon distribution between calcaric Fluvisols and calcaric Regosols, and among industrial, cultivated, and abandoned soil uses. Cultivated Fluvisols showed a higher average organic carbon content (11.35 g kg−1) compared to abandoned (9.33 g kg−1) and industrial (5.13 g kg−1) uses.

Catherine Simpson, Cade Coldren, Ioana A. Coman, Caitlyn E. Cooper, Gad Perry · IntechOpen eBooks · Global

This review focused on urban vegetation, whose importance is growing with expanding urban environments, examining its multiple uses, significance for urban wildlife conservation and sustainability, and media portrayal. Previously, the importance of urban vegetation was often emphasized in narrow literature niches related to horticulture and landscape architecture. This study surveyed diverse uses of urban horticulture and considered the role urban vegetation plays in urban ecosystem services and biodiversity.

Yusran Yusran, Erniwati Erniwati, Akhmad Khumaidi, Ramadhanil Pitopang, Ignasius Radix Astadi Praptono Jati · Saudi Journal of Biological Sciences · Indonesia (Central Sulawesi)

This study investigated the wood types serving as substrates, ethnomycology, mineral composition, proximate, and phytochemical compounds of the wild macro fungus Schizophyllum commune Fr. in the area along the Palu-Koro fault, Central Sulawesi, Indonesia, using a descriptive explanatory approach. Fungi and wood substrate samples were collected through purposive sampling in forest areas, agroforestry, and community gardens. The results identified 92 types of rotted wood, belonging to 36 families, where S. commune grew. Nutritional content was found to be good, although it varied based on the type of wood growing media.

Tina McIntyre, Rachel Gutner, Hamutahl Cohen, Tiare Saracino, Esen Momol · EDIS · United States (Florida)

This 8-page publication from the UF/IFAS Environmental Horticulture Department defines common pests for home gardeners and advocates for diversifying landscapes to manage them. It introduces the "triangle" of Integrated Pest Management (IPM), providing examples of multi-method tools applicable in home settings for pest control.

Mayra I. Rodríguez González, Christian Kelly Scott, Tatiana Marquina, Demeke B. Mewa, Jorge García Polo, Binbin Peng · Earth Interactions · Mexico

This mixed-method study in Mexico City, Mexico, explored urban agriculture's (UA) role as an alleviation and land management strategy, integrating ecosystem services and livelihoods frameworks. It quantified food production, crop diversity, six ecological processes, cultural benefits, and contributions to livelihood capitals. UA supported ecological processes, connected humans to nature, and provided supplemental income, but also showed trade-offs between ecological processes, limits in promoting formal education beyond agroecological knowledge, and an inability to fully lift families out of poverty.

Maraike Probst, María Gómez‐Brandón, Cecilia Herbón, María Teresa Barral, Remigio Paradelo · Applied Soil Ecology · Spain

This study evaluated fungal and bacterial communities in 40 soil samples from 10 urban allotment gardens in Santiago de Compostela, Spain, using DNA sequencing. While microbial richness was comparable to less anthropogenically influenced urban soils, the deterministic effect of soil properties and geographical distances was negligible. Fungal and bacterial communities followed a random distribution and formed very small, often unconnected, microbial association modules, suggesting potential implications of anthropogenic activity for soil health and ecosystem functionality.

Shivant Jhagroe · Urban Studies · Netherlands

A study of the Gandhi-garden, a community garden in Rotterdam, the Netherlands, that is part of the global Transition Towns movement, drawing on participatory ethnography, interviews, and online documents. Challenging the anthropocentrism common in research on urban sustainability and resilience, the paper analyses everyday acts such as weeding and permacultural planting as "more-than-human assemblage" place-making practices involving insects, plants, soil, and fences that challenge urban neoliberalism. It also examines expressions of solidarity with Palestine through olive trees and non-violence thinking, alongside tensions between humans and non-humans over dog waste and birds that take harvested produce.

Emanuela Granata, Paolo Pedrini, Luigi Marchesi, Chiara Fedrigotti, Paolo Biella, Silvia Ronchi, Mattia Brambilla · Agriculture Ecosystems & Environment · Italy

This study investigated the environmental and management factors influencing bird communities, pollinating insects, and two ecosystem services — pollination and nature-based recreation — along an urban-natural gradient dominated by agricultural areas (vineyards, apple orchards, and grasslands) in northern Italy. Flower-visiting insects were mainly affected by management and environmental-climatic variables, with flowers at field margins and within vineyard and apple-orchard inter-rows best predicting pollinator and flower-visiting-insect abundance; sward height and grassland cover promoted insect abundance, while vineyards and apple orchards had a negative effect on it. Bird communities were mainly shaped by land-use/land-cover and management variables, with landscape heterogeneity and linear elements having a major positive effect; apple orchards negatively affected the richness and abundance of most bird species, and vineyards negatively affected overall bird abundance, while hedgerows had a positive effect on richness. Nature-based recreation was greater in areas with low or intermediate vineyard or urban cover, with apple orchards and intensively managed grasslands having negative effects and waterways a positive effect. The study concludes that apple orchards and large vineyards are largely unsuitable for biodiversity and ecosystem services.

Borja Ferrández-Gómez, Juana D. Jordá, Antonio Sánchez‐Sánchez, Mar Cerdán · Sustainability · Europe

A study of nine soils (Technosols) developed over construction debris in Alicante, southeast Spain, analyzing mineralogy, elemental composition and metal availability over two consecutive years, 2019 and 2020. The soils were similar to forest soils in the same area, with no evidence of asbestos clays or excess harmful elements, though DTPA extraction revealed high levels of Mn and Zn in some soils. Organic carbon and DTPA-extracted metal content differed between the two years with no clear relationship observed between them; organic matter content was higher and DTPA-extracted elements were lower in 2019, which the authors attribute to above-average rainfall that year possibly washing away dissolved materials and fine soil particles while promoting natural vegetation growth that increased organic matter and immobilized elements. The study concludes that because metal mobility varies with weather and soil characteristics, and because urban soils develop on materials that require attention despite the benefits of green space, annual monitoring plans for heavy-metal availability are needed, particularly where plants are grown for human consumption, along with controls on vegetables grown in these soils and restricted garden use if problems are found.

Michael Hardman, Katherine C. R. Baldock, Stuart Connop, Kenny Taylor, Ross Stirling · · Global

Against a backdrop of high interest in blue-green infrastructure (BGI), this chapter examines how developers, planners, engineers, architects, and other actors are incorporating BGI into urban and rural environments. It notes that evidence shows approaches are often basic, relying on traditional landscaping methods that fail to explore BGI's possibilities, and reflects on advances in more radical approaches. The chapter begins with a review of how pollinator biodiversity can be enhanced through innovative BGI systems, then addresses incorporating food growing into BGI strategies and co-benefits with low-carbon energy.

Martin Šlachta, Tomáš Erban, Alena Votavová, Daniela Tomešová, Marta Václavíková, Taťána Halešová, Elena Shcherbachenko, Tomáš Bešta, Magda Edwards‐Jonášová, Renata Včeláková, Vladana Procházková, Pavel Cudlín · Journal of Apicultural Research · Europe

This study investigated pesticide contamination using larval food provisions (a mix of pollen and nectar) of mason bees (Osmia spp.) nesting in artificial shelters at twelve allotment garden sites in Prague and Brno, with seven commercial croplands (fruit orchards, oilseed rape fields) selected for comparison. In total, 79 samples of larval provisions were analyzed using a validated UPLC-MS/MS method covering 262 pesticides and related metabolites. Fifty-six pesticide residues were detected in the allotments and 74 in cropland sites, with 50 compounds common to both; fewer residues were found in allotments (mean 14.3±0.9) than in croplands (21.5±1.1; df=17.4, t=-2.9), though some residues exceeded 10 ppb. The highest levels were observed for the fungicide pyrimethanil (mean 1,989 ppb, maximum 3,983 ppb) and, among insecticides, thiacloprid (mean 136 ppb, maximum 170 ppb). The results supported the view of a lower risk of pesticide exposure in urban allotment gardens than in croplands, though given limited knowledge of sublethal effects of pesticides, and especially pesticide mixtures, on solitary bee development, the study recommends regulation or control of pesticide use in allotment gardens.

Tina McIntyre, Hamutahl Cohen, Rachel Gutner, Tiare Saracino, Esen Momol · EDIS · United States (Florida)

This is a five-page extension publication from the UF/IFAS Environmental Horticulture Department that provides a decision tree to help edible-landscape gardeners decide how to respond to wildlife in their growing areas. It states that while wild animals can damage crops, this need not require conflict, and aims to help gardeners become more accepting of wildlife species present in their managed area and coexist with them.

Elsa Blareau, Pauline Sy, Karim Daoud, Fabrice Réquier · Insects · France

A study near Paris, France, evaluated the effects of insect-mediated pollination service and potential pollination deficit on fruit set, seed set, and fruit quality (size, weight, malformation) in strawberries (Fragaria × ananassa) growing in an urban area, using flower-visitor observations and pollination experiments. Flower-visitor observations found that the pollinator community consisted solely of unmanaged (wild) pollinators, despite beehives being present in the surrounding landscape. Pollination experiments showed that wild-insect pollination improved fruit size as a qualitative measure of production but did not improve fruit set, and no evidence of pollination deficit was found in this urban environment.

Prof. Dr. Hasan YILMAZ · Zenodo (CERN European Organization for Nuclear Research) · Global

This 2023 paper introduces the concept of Biodiversity Friendly Cities (Biofriendly City) as a response to climate change. Citing a UN development report projecting that nearly 70% of the global population will live in urban areas by 2050, it argues this trend is driving rapid loss of urban green spaces and agricultural land, alongside environmental problems including transportation, infrastructure, energy, health and nutrition issues, air pollution, visual pollution and solid waste. Inadequate open and green spaces, obstruction of wind corridors, misguided urban planning, and light reflection from glass and shiny surfaces are described as contributing to urban heat island formation, while insufficient attention to natural and ecological thresholds leaves cities with difficult-to-reverse ecosystem damage and greater vulnerability to disasters. Urbanization is described as degrading productive landscapes such as urban green spaces and agricultural land, fragmenting habitats and increasing pressure on urban biodiversity, even as cities also create new habitats and species — with vascular plant and bird diversity in some temperate cities reported to surpass that of the surrounding landscape. Citing the IPCC, the paper notes global temperatures have already risen by 1.1°C, progressing toward 1.5°C.