Research & reports

Evaristo Mwaba Kapungwe · Open Journal of Metal · Africa

Water, soil, and crop samples were analyzed by atomic absorption spectrometry for lead, copper, cobalt, nickel, and chromium at two peri-urban wastewater-irrigation farming sites in Zambia: New Farm Extension in Mufulira Town, Copperbelt Province, and Chilumba Gardens in Kafue Town, Lusaka Province. Heavy metal levels in wastewater, soil, and food crops exceeded acceptable limits at both sites, confirming contamination and a potential human health risk from consuming the crops grown there.

김희수, 강현경, 백승준 · · South Korea

Against the backdrop of expanding rooftop greening projects amid Seoul's rapid urban development, this study examined usage patterns and customer satisfaction and preferences at rooftop gardens of three hotels in Seoul and Incheon, South Korea. Satisfaction analysis found that C Hotel and P Hotel, both located in downtown Seoul, scored lower than H Hotel in Incheon on the number and variety of plants. Preference analysis showed that an ideal green space was expected to host cultural and community events, provide space and opportunities for physical exercise, and serve multiple other purposes.

QI Airon · · China

A study of Xi'an, China, built indicators for urbanization and urban agriculture development and applied principal component analysis and correlation analysis to examine their interaction mechanism and quantitative coupling relationship. Urbanization was found to promote urban agriculture's commercialization and scale through market effects and information diffusion, but rapid urbanization's rising population and industrial land use also strained land and water resources and degraded soil and the urban ecological environment, constraining urban agricultural development.

Catherine Brinkley · Journal of Planning Literature · Global

This article reviewed literature from various fields to evaluate services provided by farms to urban areas. It analyzed mission statements of 130 land trusts, finding a preference for parcels offering ecosystem services, wildlife habitat, and agricultural productivity. A literature review revealed that the market value of farmland services varies from -$37,541 to $124,000 per acre, depending on analysis method and farm location.

G. N. Egwu, John O. Agbenin · Archives of Agronomy and Soil Science · Nigeria

A study in northern Nigeria assessed cadmium, lead, and zinc contamination in soils and leaf vegetables (amaranthus, lettuce) irrigated with untreated wastewater. Total cadmium and zinc concentrations in soils exceeded safe limits, and lead and cadmium in edible portions of amaranthus and lettuce exceeded safe limits for human consumption by 7–17 times. The permissible limit for lead established for agricultural lands may not be suitable to ensure produce safety in urban and peri-urban agriculture in Kano.

David Tijero · Aldiri: arkitektura eta abar · Spain (Bilbao)

This article criticizes the municipal administration's attitude towards informal allotments on the outskirts of Bilbao. It analyzes the consequences of green space reclamation plans executed in recent years and advocates for policies promoting both formal and informal urban agriculture.

Sylvestre Dasylva · Journal of environmental science & engineering · Senegal (Dakar)

This paper discusses rainwater management in the "niayes" zone of Dakar, Senegal. This area is characterized by agricultural depressions with typically high groundwater levels, but a recent drop has turned some into runoff-gathering sites, used for urban agriculture among other services. However, two acute problems are observed: hydrological drying due to insufficient rainwater refill and urbanization of these bottom-lands. Furthermore, decreasing pluviometry exacerbates nuisances like floods and malaria.

Indrė Gražulevičiūtė–Vileniškė, Jurga Vitkuvienė · American Journal of Tourism Management · Lithuania

This research addresses the threat of rapid urban expansion to valuable rural heritage, specifically Lithuanian manor residencies, which are historically agricultural but increasingly affected by urban growth. The study aimed to develop interdisciplinary guidelines for managing these manor residential ensembles within urbanized areas. Methods included literature analysis and photographic surveys of manor residencies in Kaunas, Lithuania, also considering their connection to tourism.

Coline Perrin · International Planning Studies · France, Italy

Case studies in Provence and Tuscany indicate that planning prescriptions and land-market control are insufficient for protecting farmland on the urban fringe. Farmland is not effectively protected if regulatory approaches are not integrated into a global strategy for agriculture and food based on community involvement. Farmland protection policies are more effective when combining top-down policies with bottom-up initiatives and recognizing the multifunctional character of urban agriculture.

Tazrina Ananya, Yousuf Mahid, Afia Sultana Shanta, Roxana Hafiz · Journal of Bangladesh Institute of Planners · Bangladesh (Dhaka)

This study aimed to determine the suitability of urban and peri-urban agriculture (UPA) in the DMDP area of Bangladesh, focusing on Gazipur, Kaliganj, Rupganj, and Narayanganj Upazilas. UPA is considered a key component of survival strategies for poorer populations, contributing significantly to urban fresh food supply, and offering positive impacts such as improved nutrition, enhanced living environments, increased entrepreneurship, and poverty alleviation.

Brian R. Stockwell, I. Layden, Zebedee Nicholls, Jennifer Carter · Australasian Journal of Environmental Management · Australia

A four-year action research project in Australia's Pumicestone catchment developed and implemented the FarmFLOW framework to address rural diffuse pollution in peri-urban agricultural catchments. This framework was designed for catchments with diverse land uses. The project achieved its target of 30% of producers adopting all recommended best management practices, and over 80% began adopting new practices to reduce off-site nutrient movement by 2011. This resulted in social and economic benefits for producers and a reduced risk of chronic algal blooms in receiving waters.

Isabel María Madaleno, Gladys Armijo · Investigaciones Geográficas Boletín del Instituto de Geografía · Chile (Santiago de Chile), Portugal (Lisboa)

This study compared intra- and peri-urban agriculture in Santiago de Chile and Lisbon, Portugal, two capitals with similar climates. The research utilized satellite images, statistics, and sampling to analyze public policies that support primary sector activities in these urban environments. The objective was to identify similarities and differences in how urban agriculture contributes to social, economic, and environmental sustainability in these cities.

Ana Carolina Paiva Rodrigues · VII CONNEPI - Congresso Norte Nordeste de Pesquisa e Inovação · Brazil (Natal)

In the Gramorezinho region of Natal-RN, Brazil, an exploratory study analyzed the socioeconomic and productive characteristics of urban and peri-urban agriculture. The methodology involved examining farmers' socioeconomic profiles, adopted production systems, and commercialization methods for key vegetable species. The study concluded that the legitimization of urban and peri-urban agriculture in Natal-RN is flawed, not only concerning municipal legislation but also regarding the guarantee of support and technical assistance for agricultural activities.

Fan Zi-wen · 地理科学进展 · China (Beijing)

This study analyzed typologies of vegetable production in peri-urban Beijing in pursuit of food security driven by urban agriculture development. It analyzed fresh vegetable supply sources in Beijing, identified disadvantages of longer-distance supply, and summarized five typical urban agricultural development models in peri-urban Beijing's vegetable production, including their background, operation, and management characteristics.

Evaristo Mwaba Kapungwe · Indonesian Journal of Biotechnology (Universitas Gadjah Mada) · Zambia

This study investigated farming practices related to heavy metal contaminated wastewater irrigated farming in two peri-urban areas of Zambia: New Farm in Mufulira and Chilumba Gardens in Kafue. Data was collected by observing crop cultivation activities at field plots along transects in stratified land zones. The results revealed that farming practices were characterized by traditional land management and multiple cropping systems, influenced by agro-ecological factors and the availability of heavy metal contaminated wastewater, which has the potential to contaminate soils and crops.

Chris Beer · Australian Planner · Australia

This paper examines how food security is conceptualized in Australian urban planning debates, focusing on urban and peri-urban agriculture and consumer access to healthy food. It argues these dimensions relate to planning's management of risk and freedom within liberal polities. The paper discusses tensions between scarcity, fear, affluence, and normative values in urban planning.

Désiré Jean‐Pascal Lompo, Sheick Sangaré, Emmanuel Compaoré, Michel Papoada Sedogo, Martina Předotová, Eva Schlecht, Andreas Buerkert · Journal of Plant Nutrition and Soil Science · Burkina Faso (Bobo-Dioulasso)

This study determined horizontal fluxes of N, P, K, and C, and gaseous N and C emissions in two urban vegetable gardens in Bobo-Dioulasso, Burkina Faso, from March 2008 to March 2009. Emission rates peaked after fertilizer applications during hot midday hours, with annual gaseous N and C losses reaching 419 kg N ha−1 and 35862 kg C ha−1 at Kodéni, and 347 kg N ha−1 and 22364 kg C ha−1 at Kuinima. Ammonia emissions accounted for 73% and 77% of total estimated N losses, suggesting that nutrient management practices could benefit from better synchronizing nutrient-input rates with crop demands.

Luciano Deiques Minozzo · · Brazil

This study characterized urban and peri-urban agriculture practiced by nine producers belonging to the Associação Pedritense dos Produtores de Hortifrutigranjeiros (APPH) in Dom Pedrito/RS, Brazil, between September 2011 and March 2012. Findings showed that 67% of producers practiced peri-urban agriculture (10-26 km from the city), while three practiced urban agriculture. Producers had low schooling (78% incomplete elementary education) and 55% earned 2.5 to 4 minimum wages. Family labor accounted for 88% of the workforce, and personal satisfaction was the main motivation. Water availability and quality were identified as limiting factors for production.

Nancy Karanja, Mary Njenga, G.K. Mutua, Carl Johan Lagerkvist, E. Kutto, JJ Okello · Journal of Agriculture Food Systems and Community Development · Kenya (Nairobi)

A study in three peri-urban sites in Nairobi, Kenya, assessed heavy metal, nitrate, and pesticide residue levels in wastewater-irrigated kale. Elevated levels of boron, cobalt, chromium, copper, lead, zinc, and nickel were found in vegetables at two sites, with high soil loadings of nickel, arsenic, lead, chromium, copper, and zinc attributed to chicken manure. Pesticide residues of diazinon, cypermethrin, biternol, and profenofos exceeded permissible limits in kale at one site, suggesting consumers may ingest significant amounts of contaminants.

Antonio Emilio Alvise Longo · Virtual Community of Pathological Anatomy (University of Castilla La Mancha) · Italy

This essay recounts the experience of the project for the open spaces in the Martesana area, coordinated by the author following a call from Fondazione Cariplo di Milano. Moving from operational experience, the essay generally considers the role of agricultural open spaces in peri-urban areas, contextualizing it with long-term urban planning themes.

Xin Guan · Economic Research Guide · Global

This discussion emphasizes the necessity of village renovation planning in metropolitan rural outskirts, particularly when combined with new land use and urban village layout plans. It outlines five key considerations for such planning: linking with upper-level plans without direct copying, breaking village ownership boundaries to accelerate land transfer, promoting intensive land use and moving away from canal irrigation, planning for agricultural development to lead urban agriculture trends, and coordinating short-term and long-term goals while retaining flexible space.

Aisha Abdulkadir, Luc Hippolyte Dossa, Désiré Jean‐Pascal Lompo, Nafiu Abdu, H. van Keulen · International Journal of Agricultural Sustainability · Africa

This study characterized the diversity of urban and peri-urban agriculture (UPA) households in three West African cities: Kano (Nigeria), Bobo Dioulasso (Burkina Faso), and Sikasso (Mali). A survey of 318 UPA households and cluster analysis identified six distinct household clusters based on resource endowments and the degree of integration of production activities. Common production constraints across cities included high input costs, water shortages, and lack of fertilizers, while feeding constraints and animal diseases were main issues in livestock production.

Marit Rosol, P. Schweizer · City · Switzerland (Zurich)

This paper investigated how urban agriculture projects based on Solidarity Economics principles can develop new economic forms as an alternative to neo-liberal capitalism, focusing on the Swiss gardening cooperative ortoloco. For two years, ortoloco, a peri-urban organic farm with explicit political aims beyond food supply, successfully applied and continuously developed these principles in its economic practice. The project demonstrates the potential for developing new economic forms based on solidarity.

Douglas Chitepo · Agriprobe · South Africa

The Further Education and Training sub-programme in South Africa's Western Cape is mandated to deliver skills-based training programs and structured learnerships to a diverse target group. This group includes subsistence, smallholder, and commercial farmers, as well as rural and peri-urban agricultural communities and youth.

Abdullah Adam-Bradford, Duncan McGregor, Dávid Simon · · Ghana (Kumasi)

Rapid urbanization in Kumasi, Ghana, and its peri-urban areas leads to significant pollution and waste disposal problems, exacerbated by rapid growth, poverty, and weak local governance. Waste management services are rarely provided in these peri-urban areas despite increasing settlement densities. Community-based strategies promoting nutrient recycling, such as converting organic waste into compost for urban and peri-urban agriculture, offer opportunities to address these issues.