Research & reports

Peter M. Philippi (Green Roof Service, LLC) · U.S. Environmental Protection Agency (EPA) · Germany

This paper, hosted by the U.S. EPA, introduces the German non-profit FLL's (founded 1975) 'Guideline for the Planning, Execution and Upkeep of Green-Roof Sites' (latest edition January 2002, English version 2004) to the American market. The guideline draws on the experience of roughly one billion square feet of green roofs built in Germany, and includes specific standards such as organic matter content limits for growing media (e.g. 6.0% by dry mass or less for intensive green roof media above a given density) and a root-penetration resistance test (revised to a two-year protocol in 1995, with about 70 membranes having passed it so far).

Leigh Holland · Local Environment · United Kingdom

This 2004 study in the United Kingdom analyzed the community garden movement through questionnaires and in-depth interviews. It found that community gardens, often in inner-city areas, serve diverse purposes including vegetation growing, permaculture, organic methods, health, education, and training. These gardens are strongly characterized by community participation and involvement, suggesting the movement could model local social, economic, and environmental policy implementation.

Anne C. Bellows · Food and Foodways · Poland

Polish allotment gardeners collectively represent the largest land managers in Poland, with a formalized urban allotment food production system dating back to 1997. This system, combining local and national government policy with NGO management and private use, provides a model for food security and urban open space. However, this arrangement also creates ongoing tension among stakeholders and a contentious debate regarding the private and public uses of urban land.

Tanja Pless‐Mulloli, Vivienne S. Air, Catherine Vizard, Ian Singleton, D. L. Rimmer, Philip Hartley · Epidemiology · United Kingdom

A study in an urban, industrial allotment site in the UK's northeast assessed the potential for public health impact related to soil contamination by taking 86 soil samples and analyzing vegetables and eggs. All 18 initial soil samples exceeded UK guidelines for lead (median 869 mg/kg) and arsenic (median 40 mg/kg), and widespread contamination with PCDD/F was also found. Despite high soil contamination, the uptake of lead and arsenic into vegetables and eggs was low, and these were not deemed major exposure pathways.

Marc Lavergne · HAL (Le Centre pour la Communication Scientifique Directe) · Europe

While urbanization and agriculture often appear contradictory, the existence of urban agriculture (intra-urban and peri-urban) in the Mediterranean basin demonstrates that their relationship is not as clear-cut. Urban growth consumes agricultural land, and urban and rural worlds seem radically opposed in lifestyles and values. However, urban agriculture has forged complex relationships with the urban environment, involving both antagonisms and complementarities.

Clare Rishbeth · Journal of Urban Design · United Kingdom (London)

This paper investigates how urban greenspace can be designed and managed to reflect ethnic diversity and how this is perceived by users, using two case studies of community gardens in London. It found some differences in the response to the gardens by people from different ethnic backgrounds. The use of obvious symbolism was not necessarily a primary means of encouraging users from a wide range of ethnic backgrounds, though appreciated for educational and design strengths. Concern is expressed about aspects of the physical and psychological containment of ethnic groups in fixed places and identities leading to the perpetuation of stereotypes.

Caitlin DeSilvey · Cultural Geographies · United Kingdom (Edinburgh)

A paper on Scottish allotment gardens examines how the ambiguity pervading allotment practice surfaces as a liability in strategic appeals and draws out the survival of historical forms in contemporary political negotiations, by juxtaposing narratives of involvement in a Scottish Parliament Allotments Inquiry and the history of a single Edinburgh allotment site.

Tanja Pless‐Mulloli, Karen L. Foster, J Bush · Epidemiology · United Kingdom (Newcastle upon Tyne)

Investigations in Newcastle upon Tyne, UK, analyzed the extent and consequences of disposing 2000 tons of incinerator ash on over forty allotments. Soil, egg, and vegetable samples (75 soil, 21 egg, 65 vegetable) revealed contamination of footpaths with dioxin/furan (max 9000 ng/kg I-TEQ) and high levels of copper, lead, and zinc. Mean dioxin/furan levels in soil were 38 ng/kg I-TEQ and in eggs were 16.4 ng/kg I-TEQ, indicating significant contamination and potential exposure pathways for allotment gardeners and children.

Pierre Donadieu, André Fleury · Revue de géographie alpine · Europe

This paper discusses the role of agriculture in the "country town" project in Europe. Peri-urban areas, once unpleasant environments despite their essential urban functions, have recently become attractive to new inhabitants seeking countryside amenities. Urban planning supports this concept by creating green belts and integrating agriculture as an essential element of natural spaces.

N. Bertrand, Nicole Rousier · HAL (Le Centre pour la Communication Scientifique Directe) · France (Grenoble)

In the Grenoble urban region, agriculture holds relatively minor economic importance despite the region's strong technological development. However, the region's 2000 master plan assigned an essential role to farming. Peri-urban agriculture is a key issue in planning policies, engaging local officials, planners, and farming community representatives, but its economic weight remains low.

Nathalie Bertrand, Nicole Rousier · Revue de géographie alpine · France (Grenoble)

This study analyzed the economic role of agriculture in the Grenoble urban region, France. From an economic perspective, agriculture was considered an activity of relatively minor importance in this region, known for its strong technological development. However, in the regional master plan approved in 2000, farming occupies an essential position. The study aimed to understand the role of peri-urban agriculture in the preparation of the urban region's development plan by specifying its assigned functions and analyzing how agriculture has been considered in regional plans.

Joe Howe · Journal of Environmental Policy & Planning · United Kingdom

This article explores the neglect of research concerning food grown within urban areas and its land-use policy implications. It details findings from a UK study on land-use policy and urban agriculture, investigating land-use officials' attitudes and knowledge of urban food production and the regulatory framework used. The article concludes that despite extensive urban agriculture practice, its urban land-use policy implications require more attention from both land-use officials and researchers than previously given.

Wolschke-Bulmahn J., Gröning G. · In R. A. Etlin (ed.), Art, Culture, and Media under the Third Reich, University of Chicago Press, pp. 73–97 · Germany

Book chapter interpreting the Nazi garden and landscape ideal through the concept of 'Bodenständigkeit' (rootedness in the soil), showing how small-scale, landscape-adapted gardens using native plants and materials embodied Blood and Soil ideology.

· Wikipédia (français) · France

This French Wikipedia article on shared/community gardens (jardin partagé) notes that Paris's first jardin partagé appeared in 2002, after which the City of Paris institutionalized the "Main Verte" (Green Hand) program, networking and supporting charter-signing garden associations under a unified framework. It also cites that, as of 2018, the national federation (FNJFC) united over 200 associations and 20,000 gardening families.

J.J. Tolron · HAL (Le Centre pour la Communication Scientifique Directe) · Europe

This article examines peri-urban agriculture, which is subject to land constraints imposed by nearby cities. Two case studies in the Mediterranean region illustrate that adaptations to the peri-urban context trigger radical changes in agricultural systems' functioning rationale, leading to sometimes paradoxical operations. The study emphasizes the diversifying effect on systems and the challenges linked to land management.

Rie Oba, Reiji Obase · Journal of The Japanese Institute of Landscape Architecture · United Kingdom

This study examines Britain's allotment gardens, which have a long history and are frequently cited in Japan as a model for citizen farms (shimin nōen). Focusing on the late 19th to early 20th century, when urban allotments began spreading in the UK, the study systematically traces the transformation of allotments in relation to the social conditions of the time, and empirically analyzes the administrative decision-making behind establishing and abolishing allotments. The findings show that the functions allotments served differed according to social conditions, and that changes in those functions strongly influenced whether allotments still exist today; local authorities deciding on abolition were also found to weigh the relationship between an allotment's area and the location of open space.

Stadt Leipzig, Amt für Stadterneuerung und Wohnungsbauförderung · Stadt Leipzig · Germany

The fifth booklet in a series published by the City of Leipzig's 'Careful Urban Renewal' pilot project, addressing vacant lots (Baulücken) created by wartime destruction and East German-era demolitions. It explains how a 'Gestattungsvereinbarung' (usage-permission agreement) between the city and private landowners enables temporary conversion of vacant lots into green space, play areas, or parking without affecting the underlying building rights.

Carmen Egea Jiménez, Ana Fernández Zamora · Arqueología y Territorio Medieval · Spain (Granada)

This article re-evaluates the significance of Protection Catalogues in urban planning, highlighting their role not only as protection instruments but also in influencing urban decisions during the planning process. The "Catalogue of Urban Gardens of the Municipality of El Valle (Granada)" in Spain is used as a case study to illustrate this approach.

Isabel Boussard · OpenEdition (OpenEdition) · Europe

This book, published in 1999, defines "urban agricultures" as agricultural activities aimed at land development within urban or peri-urban sites. It explores the subject beyond traditional French worker or family gardens, considering the diversity of garden types and the broad geographical scope across Europe.

Jean-Noël Consalès · Méditerranée · France

In Marseille, France, family gardens (jardins familiaux) have established themselves over a century as privileged witnesses to the different phases of urbanization (2000). From a necessary peripheral phenomenon during 1900–1945, to a land reserve during the postwar boom years, these collective vegetable-garden groupings stand today as symbols of urban society's renewed enthusiasm for peripheral agriculture. Marseille's family gardens have effectively become veritable territorial laboratories of urban agriculture in the Mediterranean.

Rollins W. H. · Annals of the Association of American Geographers, Vol. 85, No. 3, pp. 494–520 · Germany

Analyzes how Seifert and his team applied aesthetic and ecological principles, grounded in climax-vegetation theory, to the Autobahn, probing the entangled relationship of technology, fascism, and environmentalism under National Socialism.

Todd Gray, Devon Gardens Trust · · United Kingdom

This guide compiles sources on the garden history of Devon. It includes Devon's gardens and surviving documents, how to begin garden research in Devon, how to use the guides, garden descriptions, documentary sources, printed sources, illustrations, and appendices. The appendices list places and gardens visited by Revd John Swete from 1789-1804, allotment gardens in Devon, Devon nurseries and market-gardens, Devon garden societies, and miscellaneous Devon records.

Wolschke-Bulmahn J., Gröning G. · Journal of Garden History, Vol. 12, No. 1, pp. 73–80 · Germany

Critically analyzes how the 'nature garden' ideology that emerged in early-twentieth-century Germany, while claiming scholarly basis, carried nationalist and native-plant preferences that fed into later Blood and Soil thinking.

Gröning G., Wolschke-Bulmahn J. · Landscape Journal, Vol. 11, No. 2, pp. 116–126 · Germany

Examines how German landscape architects' obsession with native plants produced 'landscape rules' that, under National Socialism, became tied to the planning of occupied territories and acquired xenophobic, ideological character.

John M. Merriman · Oxford University Press eBooks · France

This chapter emphasizes the “awkward embrace” between city and country in the faubourg and the persistence of an urban agricultural population. It also considers how the troubled relationship between state and city affected the urban periphery and provides an overview of industry's role in faubourg development. To understand the urban periphery in France during the first half of the nineteenth century, it explores the state-city relationship (reflected in town walls), the persistence of rural life at the edge of and within cities, and industry's place in the emergence of the nineteenth-century faubourg.