Research & reports

Dávid Korányi, Róbert Gallé, Bettina Donkó, Dan Chamberlain, Péter Batáry · Urban Ecosystems · Germany (Göttingen)

This study in Göttingen, Germany, investigated the effects of green space (GS) types and surrounding urbanization on bird communities. Bird observations were conducted using the point-count method in allotments and parks, with urbanization levels measured by the percentage of impervious surfaces. Increasing levels of urbanization around green spaces had no effect on bird species richness, functional traits, or community composition.

Selda Cansu TEMEL · GRID - Architecture Planning and Design Journal · Turkey

This study analyzed the planning and design criteria of public primary school gardens in Üsküdar district, Istanbul, Turkey, to determine their proficiency levels against national, international, and academic standards. Using quantitative and qualitative methods, including on-site observation, the research identified architectural disadvantages and inadequacies in the school gardens. The findings indicate deficiencies in the current state of these outdoor recreation areas.

Martí Rufí-Salís, Felipe Parada, Verónica Arcas‐Pilz, Anna Petit‐Boix, Gara Villalba, Xavier Gabarrell · Frontiers in Plant Science · Spain (Barcelona)

This study investigated a closed-loop crop cascade system in a Barcelona rooftop greenhouse, using tomato leachates to irrigate five successive lettuce cycles. The results showed that low yields (below 130 g per lettuce plant) were obtained when the cascade system was used during the early stage of the donor crop, as the nutrient amount, especially nitrogen, was insufficient for the receiving lettuce crop. Additionally, electrical conductivity values became too high (near 3 dS/m) at the end of the donor crop cycle, indicating limitations in maintaining optimal conditions throughout.

Esther Sanyé‐Mengual, Kathrin Specht, Jan Vávra, Martina Artmann, Francesco Orsini, Giorgio Gianquinto · Sustainability · Italy (Bologna)

This study compared perceptions of urban agriculture (UA) ecosystem services (ESs) among different societal groups in Bologna, Italy, namely UA project leaders, stakeholders, and the general public, with 406 individuals evaluating 25 ESs via a standardized Likert-scale survey. Statistical analysis indicated that the general public and UA stakeholders agreed on the high relevance of socio-cultural ESs, while provisioning ESs were considered less significant. This study reveals a lower perception of provisioning ESs from urban agriculture.

Sam Ramsden · Voluntary Sector Review · United Kingdom

This article explored an externally funded charity-led project in a deprived area of the UK, implementing urban agriculture, community gardening, and household energy activities. The project successfully engaged marginalized people, who strongly voiced outcomes including reduced isolation, improved mental health, and increased resilience and self-reliance. Environmental outcomes were less tangible but included improvements to the local environment and reduced energy usage. However, after the funding finished, marginalized participants were vulnerable to outcomes not being sustained in the long term.

Barbara Maćkiewicz, Raúl Puente Asuero, Antonio Garrido Almonacid · Quaestiones Geographicae · Spain

This study investigated how urban allotment gardens in Baeza, Andalusia, Spain, affect the city’s sustainable development. The research showed that allotment gardens in Baeza endorsed all three pillars of sustainable city development: ecological, economic, and social. However, it was found that developing broader community relations on the city scale, reviving the declining local grocery market, and disseminating environmental initiatives that allotment gardens could promote and facilitate were missing.

Giuseppe Pulighe, Flavio Lupia · Sustainability · Italy (Milan)

A spatiotemporal quantification of urban agriculture in Milan, Italy, assessed its food self-provisioning potential using Google Earth images from 2007 and 2014. The study found that even in the best-case scenario, the current urban agriculture production (98 ha of vegetable gardens, 2539 ha of arable land) is insufficient to meet the vegetable and cereal consumption needs of over 1.3 million city residents. It could only satisfy approximately 63,700 vegetable consumers and 321,000 cereal consumers.

Andy Lockhart, Simon Marvin · Antipode · United Kingdom (Sheffield)

This article explored the phenomenon of automated environmental control, using three sites in Sheffield, UK: a botanical glasshouse, a luxury hotel, and a university plant growth research lab. The study identified technical and ecological tensions and limits of indoor environmental control at each site, which restrict the scope of automation. It also showed that maintaining desired conditions required considerable hidden labor and energy.

Jean-Christophe Levassor · DOAJ (DOAJ: Directory of Open Access Journals) · France

This study addresses social divisions in Le Pile, east Roubaix, France, where over 40% of residents live below the poverty line. It states that without proactive policies, social divisions will worsen, and initiatives like urban farming and zero waste will only have a limited effect beyond a small circle of insiders. La Condition Publique aims to recreate ties among various actors to support urban renovation and foster resilience in this deprived neighborhood.

Sofia Biffi, Cleandho Marcos de Souza, L. G. Firbank · Agriculture Ecosystems & Environment · United Kingdom

Seventeen urban food production sites of varying sizes in and around Leeds, UK, selected from an open-source database, were surveyed using pitfall traps to assess the abundance and diversity of epigeal invertebrates (beetles, springtails, and spiders) in relation to soil characteristics (organic carbon, moisture content, pH) and site area; soil productivity was assessed by growing radish (Raphanus sativus) under uniform conditions. The study found no correlation between epigeal invertebrate abundance or diversity and either site area or soil characteristics. The authors state this indicates there is, as yet, no evidence that urban food production sites are too small to draw on ecosystem services delivered by epigeal invertebrates.

Fikret ALINCAK, Mehmet Ali Öztürk, Tuğba TURAK · The Online Journal of Recreation and Sport · Turkey (Gaziantep)

This study investigated the pedagogical expectations of 25 classroom teachers in Gaziantep, Turkey, regarding playgrounds in school gardens, using open-ended questions and content analysis. The findings revealed that teachers perceived school gardens as inadequate and unsuitable for students' levels, and considered the areas unreliable. Teachers concluded that playgrounds should be wide, have diverse game tools, be educational, and have corrected ground for student safety to support children's development.

St Clair, Rebecca, Hardman, Michael, Adams, David, Armitage, Richard, Barry, Veronica, Larkham, Peter, Sherriff, Graeme · Research Explorer (The University of Manchester) · United Kingdom

This paper reviews the diversity of urban agriculture (UA) activities in England, from small-scale guerrilla gardening to large community projects. It suggests that UA is under-theorized, with previous research focusing on practicalities and activism. The paper highlights UA's problematic contribution to food production and warns of the 'local trap'.

Sertaç Güngör · Journal of Agricultural Faculty of Gaziosmanpasa University · Turkey (Konya)

This study investigated the current state of gardens in 7 nursery schools in Selçuklu district, Konya city, Turkey, regarding landscape design and space usage. The findings revealed that the nursery school gardens were not used effectively, lacked sufficient green space in their landscape design, and were not properly designed to contribute to children's mental and physical development.

Matthew Reed, Daniel Keech · Renewable Agriculture and Food Systems · United Kingdom (Bristol)

This study investigated how urban food activists related to the media, represented themselves, and how others represented their agenda during 2015 when Bristol was the European Green Capital. The research found that mass media primarily focused on topics other than food, and urban food was not a salient issue in their coverage. The self-representation of urban food networks revealed a narrow focus of interest, which may have contributed to a lack of connection between potential allies within the city, indicating limited connections of urban food networks to circuits of power and influence.

Aysun Çelik, Elvan Ender Altay · Kocaeli Üniversitesi Mimarlık ve Yaşam Dergisi · Turkey

A study evaluating the landscape condition of school gardens at 49 schools (30 primary, 19 secondary/equivalent) in the central district of İzmit, Kocaeli Province, Turkey, assessed for space-use profiles, landscape design components, and vegetal components (using a proportional range method for space use and frequency analysis for landscape and vegetal component data). The study found that landscape design of the school gardens is neglected, and that space-use rates fall far below standards compared with developed countries. Green space use was observed in only 43.33% of primary schools and 57.89% of secondary schools; the gap between the school with the largest green area and the one with the smallest was 313 times in primary schools and 57 times in secondary schools. Plant diversity in existing green spaces was found to be quite poor, with grass areas and flower beds rarely used. 93.34% of primary schools, which serve children of play age, had no play equipment areas, and 47% of secondary schools lacked multifunctional playgrounds suitable for basketball and volleyball. The study recommends treating school gardens as part of education and adopting a uniform standard for organizing spaces and components so all students have equal access.

Catharine Ward Thompson, Peter J. Aspinall, Jenny Roe, Lynette Robertson, David Miller · International Journal of Environmental Research and Public Health · United Kingdom

A cross-sectional survey of 406 adults in four deprived urban communities in Scotland, UK, investigated the relationship between green space access and health outcomes. While the amount of neighborhood green space and access to a garden or allotment were significant predictors of stress, social isolation and place belonging were found to be the strongest predictors of stress in three communities and of poor general health in the least healthy community. Physical activity, winter green space visits, and home views also predicted general health.

Alan Hallsworth, Alfred Wong · International journal on food system dynamics · United Kingdom (Portsmouth)

This empirical case study examined the potential for urban gardening to contribute to individual food security. Focusing on Portsmouth, England, the study found that prevailing economic and social structures hamper the likelihood that urban gardening can offer much greater food security. Realistically, contemporary urban gardening most closely resembles a middle-class pursuit for personal enjoyment, rather than a significant contributor to food security.

E.J. Veen, P.H.M. Derkzen, A.J. de Visser · Food and Foodways · Netherlands

This article compares food acquisition habits among participants in four Dutch urban food-growing initiatives: two allotments and two Alternative Food Networks (AFNs). Allotment gardeners integrate gardening into daily routines and easily use harvests, while AFN members, who primarily engage in shopping, struggle to regularly consume urban-grown food due to competition with supermarkets. The study concludes that involvement in shopping versus growing significantly impacts urban-grown food consumption, indicating a limited effect of motivations to change the food system when confronted with everyday routines.

Robert Mattock · · United Kingdom

This article discusses the decline in horticultural skills and work ethic in the United Kingdom over the last century, attributing it to the welfare state's de-incentivization of the workforce. The diverse plant vocabulary and cultivation skills once common among Victorian gardeners and landscape designers are now largely lost, impacting the conservation of designed landscapes. While efforts are being made to revive school gardens and promote apprenticeships and craft skills, the article concludes that more work is needed to re-establish a traditional work ethic in apprenticeships.

Yves Cabannes, Isabel María Raposo · City · Europe

This paper conducted a comparative analysis of peri-urban agriculture in Lisbon and London to assess its contribution to migrant social inclusion and urban biodiversity. The study found that social inclusion patterns are city-specific; for example, Cape Verdean urban farming communities in Lisbon strengthen community bonds but do not necessarily lead to better integration into wider Portuguese society. Migrant urban farmers contribute to broadening biodiversity, primarily in Lisbon and to a lesser extent in London.

Les Levidow, Katerina Psarikidou · · United Kingdom

In Manchester, England, environmental and health issues have been folded into a wider agro-food strategy aimed at making the city "more sustainable." With support from state bodies and charities, several initiatives have expanded access to fresh, healthy food, particularly in "food deserts," mobilizing resources, skills, and voluntary labor through "community engagement" to create "community spaces" for social inclusion. Manchester's agro-food networks shorten supply chains by linking peri-urban agriculture more directly with urban consumers and by promoting urban agriculture grounded in local resource mobilization and personal trust, offering an alternative to conventional agro-food chains; food relocalisation is described as helping overcome socio-economic inequalities and health problems, with Manchester initiatives cooperating to build environmentally sustainable, socially just, healthy communities and reconstructing local identities and social commitments, within a national policy context that advocates food relocalisation but provides little actual support. Despite that activity, the larger food system in Manchester remains dominated by conventional agro-food chains, and community food initiatives play only a marginal role, leading practitioners to discuss how to overcome these limitations; from 2010 onward, the UK government's austerity regime is described as undermining state support further, making community engagement even more important for mobilizing resources.

Jean-Noël Consalès · Rives méditerranéennes/Rives méditerranéennes · Europe

This study examines allotment gardens in Marseille, Genoa, and Barcelona and finds that, although urban agriculture is potentially at stake in these cities, allotments struggle to establish themselves within complex urban contexts. Their actual function appears limited: their social role is often overestimated, while their environmental and landscape significance remains largely neglected.

Candan Kuş · · Turkey (Ankara)

A study in Yenimahalle District, Ankara, evaluating multiple schools including 80 primary schools, assessed the importance of school gardens and their place within the urban open-green space system. The findings revealed that many school gardens were unsuitable for use by teachers and students, being narrow, containing only ceremonial areas and a few plants, and lacking sufficient furnishing elements. It was also observed that additional buildings further narrowed school gardens, and insufficient attention was given to recreation areas, sports areas, and green spaces.

M.J. Zwankhuizen, Francine Govers, J.C. Zadoks · Phytopathology · Netherlands

A study in Southern Flevoland, Netherlands, from 1994 to 1996, assessed inoculum sources of potato late blight. It found that 74% of early disease foci in commercial potato fields were linked to nearby infested refuse piles. Infected seed tubers, volunteer plants, and infested allotment gardens appeared to be of minor importance for late blight development in potato fields. However, in August 1994, infested organic potato fields became major mid-season infection sources, spreading the disease to adjacent conventional fields.