Research & reports

Kamal Kishore Yadav, Pradeep Kumar Singh, R. C. Purohit · Water science and technology library · India (Udaipur)

A study in the peri-urban area of Udaipur City, India, investigated heavy metal contamination in soil, vegetable crops, and groundwater due to wastewater reuse. While groundwater-irrigated vegetables showed heavy metal levels within WHO limits, wastewater-irrigated spinach, tomato, and radish at site 3 (Kanpur – Madri Villave) exceeded maximum permissible limits for Fe, Zn, and Cd. Urban wastewater-irrigated spinach was found to accumulate Fe, Zn, and Cd significantly above permissible limits at all three selected locations, making it unsafe for human consumption.

Isaiah Sewanu Akoteyon, Adeyemi Davidson Aromolaran · International Journal of Environment and Sustainable Development · Nigeria (Lagos)

This study evaluated peri-urban market gardening and shallow well water quality for irrigation in Lagos, Nigeria. It found that the mean values of bicarbonate, calcium, and pH in shallow wells exceeded detection levels in 66.7%, 60%, and 53.3% of samples, respectively. Salinity and sodium hazard patterns showed that approximately 66.7% of shallow wells had low salinity, 26.7% medium, and 6.7% high.

Joshua Oluwole Olowoyo, Gladness Nteboheng Lion · South African Journal of Science · South Africa

This review reports on the concentrations of trace metals in crops, including leafy vegetables, harvested from various urban areas. It highlights the presence of trace metals in leafy vegetables and discusses various pathways of uptake, possible health risks associated with urban farming, and morphological and physiological impacts of trace metals in leafy vegetables.

Corrado Diamantini · City Territory and Architecture · Italy

This article discusses the role of peri-urban agriculture in maintaining the identity and sustainability of Alpine cities, which face challenges such as urban sprawl. It emphasizes that peri-urban territories in the Alps can be crucial for sustainable urban development. As evidence, a planning project for the Rotaliana Königsberg territory north of Trento, Italy, is presented, which aims to restore its agro-food vocation through the creation of a vast agricultural park encompassing much of the urbanized area.

Sérgio Luiz de Oliveira Vilela, Maria Dione Carvalho de Moraes · Revista Econômica do Nordeste · Brazil (Teresina)

This article discusses the importance of Urban and Peri-urban Agriculture (UPA) and the challenges of its management, particularly the need to institutionalize a Localized Agri-Food System (SAL) in Teresina, Brazil. The concentration of 46 gardens, occupying almost 140 hectares within Teresina, meets the basic requirements for establishing a SAL. Based on bibliographic research and empirical knowledge, the study concluded that adopting a SAL is a fruitful measure for Teresina to address necessary transformations in UPA, making it a significant part of the municipal planning agenda.

Darya Hirsch, Christian H. Meyer, Johannes Klement, Martin Hamer, Wiltrud Terlau · International journal on food system dynamics · Germany (Bonn)

This study uses a broad approach to Urban AgriCulture (UAC), encompassing crop production in urban and peri-urban areas, and presents an empirical case study on UAC Initiatives in Germany's Bonn/Rhein-Sieg region. The work aims to fill a gap due to the current lack of comprehensive and comparative studies on urban agriculture, which makes it difficult for researchers to identify its benefits.

Katherine Alexandra Herrera Hernández, Yohanna Marcela Pinzón, Ruth Zamira Herrera Rincón · · Colombia (Bogotá)

This project aimed to contribute to the study of Urban Peri-urban Agriculture (UPA) in Bogotá by describing projects led by the José Celestino Mutis Botanical Garden from 2004 to 2016, analyzed from an environmental education perspective. Using a qualitative methodology, the study investigated fundamental elements in education-management development, such as participation, the construction of the concept of environment, and the strengths and weaknesses in achieving these projects within the framework of successive city governments during that period.

LE Wynne, Dana Cordell, Joanne Chong, Becky L. Jacobs · UTS ePRESS (University of Technology Sydney) · Australia (Sydney)

This report, using Sydney as a case study, examines land-use planning on the urban fringe for peri-urban food production. It finds that for many cities, including Sydney, a large proportion of peri-urban food production has already been lost due to conversion to residential and infrastructure uses. The report reviews various planning responses to address threats to peri-urban agriculture.

Solange Hernandez · International Review of Administrative Sciences · France

This case study in the urban community of Pays d’Aubagne et de l’Etoile, France, over 25 years, aimed to understand paradoxical territorial management practices in peri-urban agriculture. Based on quantitative analyses of qualitative data, the study demonstrated the relevance of these management practices in action, but identified paradoxes as a recurring source of tension and deadlock in territorial public administration. The research proposes managerial tools applicable in the framework of public action in peri-urban agriculture.

Rosicléia Silva, Mauricio Ricardo De Paula Dias, Flávio Sampaio Mendes, Hevelyn Soares das Chagas, Roberta de Fátima Rodrigues Coelho · Cadernos de Agroecologia · Brazil

This study evaluated the contribution of urban agriculture to the socioeconomic development of the Areia Branca community in Santa Izabel do Pará, Brazil, by profiling families and understanding the influence of agricultural activity. Through on-site observations and socioeconomic questionnaires, it was found that agriculture is the main source of income for most families, primarily involving leafy vegetable cultivation with family labor. Despite being low-tech, the agriculture is not organic due to the recurrent use of chemical fertilizers.

Mujtaba Baqar, Nadia Jamil, Naveed Ahsan, Kiran Khanum, Abdul Qadir, Mariyam Zameer, Anam Khalid · Transylvanian Review · Pakistan (Lahore)

This case study investigated the impacts of heavy metals from wastewater irrigation on soil, groundwater, and leafy vegetables (Indian mustard, spinach, fodder) in the Charrar Drain catchment, Lahore, Pakistan. Samples were collected from seven sites. Drain water showed Cd, Cr, and Pb concentrations exceeding limits at most sites, and groundwater Cd concentrations also exceeded limits, though Cr and Pb were within permissible ranges. Soil samples contained Cd, Cr, and Pb, and leafy vegetables irrigated with wastewater showed varying heavy metal concentrations, indicating a heavy metal bioaccumulation issue that may exceed threshold limits.

Masdjidin Siregar · Jurnal Agro Ekonomi · Indonesia (Jakarta)

This paper describes intensive peri-urban leafy vegetable agriculture in Jakarta, which utilizes idle land and provides employment and income for rural migrants. However, the prospect of this agriculture is unclear because it uses non-agricultural land that will eventually be developed. The study concludes that government assistance in credit, extension, and research is needed, and alternative lands for cultivators must be found.

Elke Rogge, Eva Kerselaers, Charlotte Prové · · Europe

This study explores opportunities and challenges for peri-urban agriculture, examining envisioning processes in Ghent and Kortrijk, Belgium, initiated by local authorities. Results indicate that pressure on farmland is a key issue in both contexts. Multifunctionality is complex in practice and governance, and successful envisioning processes require clear objectives, defined study areas, policy support, strong leadership, and reliable data.

Xavier Recasens Gracia, María José Prados Velasco, Óscar Alfranca · Dialnet (Universidad de la Rioja) · Spain

This study comparatively analyzed the relationships between the economic activity of urban farms and agricultural protection systems in the metropolitan areas of Barcelona and Seville. It investigated the business management and commercial aspects of urban agriculture, and how it is conditioned by urban planning and Common Agricultural Policy (CAP) decisions. Based on the CANVAS Business Model and quantification of benefits, the results demonstrated that urban agriculture is multifunctional and can contribute to business profits.

Marco Antonio Toral Juárez, Catalino Jorge López Collado, Felipe Gallardo-López · · Mexico (Veracruz)

This study identified cultural, socioeconomic, and environmental factors influencing women's disposition to practice home horticulture and the financial profits of container vegetable production. Using non-probabilistic sampling, 114 women were selected in the peri-urban zone of Cardel City, Veracruz, Mexico, and interviewed with a Likert scale survey. The disposition to practice peri-urban horticulture was favorable, and four out of six containers had a positive cost/benefit ratio. Multiple factors affect this disposition, while the environmental factor determines which vegetables can grow.

Muhammad Bello Ibrahim, Nobaya Ahmad, Asnarul Khadi Abu Samah, M.S.M. Redzuan · Universiti Putra Malaysia Institutional Repository (Universiti Putra Malaysia) · Nigeria

A quantitative study surveyed 217 peri-urban agricultural farmers in Kwadon, Gombe, NE Nigeria, from a population of 500, to assess their efforts in watershed sustainability and usage. Descriptive statistics indicated that the majority of these farmers are moderately sustaining the Kwadon watershed through their farming practices. The study focused on water sources, water sharing, and watershed management.

Michael Buxton, Rachel Carey, Kath Phelan · Water science and technology library · Australia (Melbourne)

This case study examines the relationship between urban and peri-urban systems in Melbourne, Australia, where peri-urban agricultural production faces pressure from rapid urban development. It explores three scenarios relating rural and urban land supply and demand, and land use planning techniques to limit rural land development. The study argues that stronger statutory planning measures are needed to prevent the loss of peri-urban agricultural land and enhance the resilience of city food systems.

Luca Salvati, Pere Serra, Serena Rugiero, Alberto Sabbi · Agriculture and Agricultural Science Procedia · Europe

This article discusses the relationship between landscape and peri-urban agriculture and the implications of sustainable land management for fringe land quality. It proposes a framework to evaluate the latent nexus between agro-forest systems and human settlements in southern Europe. Eco-sustainable planning integrated with multifaceted research and policy dimensions is a relevant approach to urban fringe sustainability. Permanent assessment of these factors allows for the implementation of different development scenarios.

Chiara Zonda · · Italy (Milan)

This abstract is a personal reflection on the author's childhood experiences with a family garden in Milan's hinterland, Italy. It describes the author's fascination with gardens and the sense of peace and community they provided. The author then notes realizing that urban gardens could serve as a strong tool for social aggregation within a neighborhood or community, leading to further research on existing successful urban garden initiatives worldwide.

Giulio Senes, Natalia Fumagalli, P. Ferrario, Daniele Gariboldi, Roberto Rovelli · Journal of Agricultural Engineering · Italy (Milano)

A study was conducted in 133 municipalities of the metropolitan area of Milano (excluding Milano city) to evaluate the presence of Municipal Community Gardens (MCGs) and define criteria for new MCG settlements. The study found that 59 municipalities had MCGs, with an average area per capita of 0.68 sq.m (excluding an outlier), and most MCGs were located in urban or suburban areas. Criteria proposed for identifying suitable areas for new MCGs included proximity to road networks within residential areas, suitable land use, and not high land capability, leading to the identification of the number and area of MCGs to be realized and their potentially suitable sites in each municipality.

· · Italy

The European Economic and Social Committee (EESC) document from 2004 recognized the strategic value of peri-urban agriculture, describing these areas as complex territories with important economic, environmental, and social roles. The document also noted that peri-urban areas may include less favored areas, entitling local farmers to additional indemnity for natural or environmental limitations.

Laure‐Elise Ruoso, R. Plant, Brent Jacobs, Pierre Maurel · · Australia (Western Sydney)

This study, based on in-depth interviews with farmers in peri-urban Sydney, Australia, examines how changes in these areas impact farmers' place identity and decision-making. It analyzes how increasing urban development, land subdivision, rising land values, and environmental regulations threaten farming activities. The findings indicate that these factors influence farmers' practices, business management, and decisions to continue or relocate peri-urban farming.

Rosanne Wielemaker, Jan Weijma, G. Zeeman · Resources Conservation and Recycling · Netherlands

A study on Rotterdam, the Netherlands, assessed how source-separation-based New Sanitation (NS) systems could match the supply of nitrogen, phosphorus, and organic matter with demand from Urban Agriculture (UA), premised on the view that sustaining cities long-term requires a circular metabolism where the output ('waste') of one urban process becomes input for another. Applying the Urban Harvest Approach, originally developed for the urban water cycle, to nitrogen, phosphorus, and organic matter across two UA typologies (ground-based and rooftop) and four NS concepts treating domestic urine, feces, and organic kitchen waste, the study found that UA's demand for nutrients and organic matter could be reduced by 65-85%, with full (100%) self-sufficiency achievable for phosphorus, while nitrogen and organic matter would reach only partial self-sufficiency.

E.N. Sabiiti, Constantine Bakyusa Katongole · Water science and technology library · Uganda

Wakiso district, the peri-urban area surrounding Kampala, Uganda's capital city (population about 1.51 million), ranks first nationally in poultry production and second in pig production, accounting for 7.4% and 6.3% of the national chicken and pig populations respectively. The chapter finds that agricultural land in these peri-urban areas is increasingly at risk from urban encroachment, driven by population growth, distorted land values, a construction boom, and expanding recreation and leisure facilities competing with farming for land, which is likely to adversely affect the city's food security.

徐正挺 · 合作经济与科技 · China

An article on agricultural innovation within Suzhou's national independent-innovation demonstration zone in Jiangsu province, China, presents Shanghai's modern urban agriculture as a leading example: Shanghai Guoxing Nong company's "Internet+Agriculture" approach uses a "five-ring linkage" business model that integrates agricultural production, technology and services with internet information technology to support the pre-production, production, post-production and sales stages. The article argues that Changshu, which already has a solid agricultural base, should draw on this model and the "Internet+" strategy to build platforms that raise agricultural quality and efficiency.