Research & reports

Tiffanie F. Stone, Janette R. Thompson, Emily Zimmerman, Tássia Mattos Brighenti, Matt Liebman · Renewable Agriculture and Food Systems · United States

In the US Corn Belt near Des Moines, Iowa, researchers combined land-use visualization with producer surveys to examine a future scenario supplying 50% of a metropolitan population's dietary needs from local "table food" (fruit, vegetable and grain crops for direct human consumption) by 2050. Surveys were sent to 1,360 row crop and 55 specialty crop producers, yielding 316 and 25 eligible responses respectively. The scenario would require less than 3% of available agricultural land and roughly 130 additional producers, mostly in grain production. Based on producers' stated plans, local production could supply about 25% of residents' fruit, vegetable and grain needs, up from a 2% baseline. Row crop producers ranked food safety regulations as their strongest constraint, specialty producers ranked labor availability, and both groups cited crop insurance and processing facilities as important.

Gunawan Adi Pratio, Siti Nur Rohmah, Muhammad Ali Akbarsyah, Arseto Endro Supriyanto · Jurnal Bengawan Solo Pusat Kajian Penelitian dan Pengembangan Daerah Kota Surakarta · Indonesia

This literature review study examines the concept of urban farming as a solution to agricultural challenges in cities with little or no traditional farmland. Drawing on literature covering urban farming practices in major cities worldwide facing land constraints, it summarizes techniques including hydroponics, aquaponics, vertical farming, and use of rooftops or vacant urban spaces. The review finds urban farming can improve access to fresh food, reduce emissions from food transport, and improve environmental quality through increased green space, while also empowering local communities through job creation and resident involvement in food management, and supporting organic waste management by using household waste as fertilizer. However, resource constraints such as water, fertilizer and technology, along with regulatory and policy issues, were identified as the main barriers to implementation, and the paper concludes that collaboration among government, the private sector and local communities is needed.

Tarek Ben Hassen, Hamid El Bilali · · Global

This book chapter combines bibliographical and topical analysis of scholarly and gray literature with case studies from Middle East and North Africa (MENA) countries to examine the state of urban and peri-urban agriculture (UPA) amid regional climate pressures — rising temperatures and frequent droughts damaging limited water resources and threatening agriculture and food security. The chapter reports that UPA in the region lacks adequate infrastructure and resources, including access to water, suitable land and equipment, and that in many MENA cities, the absence of government initiatives combined with land tenure problems and high land prices makes UPA less prevalent and less viable; it concludes that improved policy support and enabling regulations — including zoning rules and financial and technical support — are needed to expand UPA in the region.

Setyardi Pratika Mulya, Delik Hudalah · Regional Sustainability · Indonesia

This study assessed sustainability based on agricultural intensity in peri-urban villages of Karawang Regency, Indonesia, using a village agriculture index (VAI), a village sustainability index (VSI) adapted from a local sustainability index via factor analysis, and a logical matrix analysis for level of agricultural sustainability (LoAS). Peri-urban villages with high agricultural intensity tended to show lower social welfare and economic development and higher disaster risk; high agricultural intensity did not necessarily ensure prosperity, and economic disparity existed among villages, leading the study to conclude that encouraging diversity in agricultural intensity is more important than promoting agricultural intensity itself.

Natasha Putri Adetya, Maulin Masyito Putri · Sustainability and Social Impact · Indonesia

Addressing the high temperatures characteristic of urban planting conditions in Gresik Regency, Indonesia, this paper proposes optimizing post-harvest sales and storage systems for urban farming products through three measures: planting and harvest scheduling by crop type and duration, cold storage to slow quality degradation and extend shelf life, and a sales and distribution application. It identifies as a problem that most current sales of urban farming products depend on direct sales to the surrounding community and are considered ineffective, and proposes that these three measures would let farmers reach customers beyond Gresik.

Elżbieta Skorbiłowicz, Piotr Ofman, Mirosław Skorbiłowicz, Marcin Sidoruk, Urszula Tarasiuk · Water · Poland

This study assessed heavy metal contamination in 96 surface sediment samples collected from urban, agricultural, and forested areas of the Bug River catchment in Poland between July 2018 and 2020, measuring metals (Zn, Pb, Cr, Ni, Cu, Fe, Mn, Cd) by atomic absorption spectroscopy and applying the geoaccumulation index (Igeo), contamination factor (CF), and pollution load index (PLI). Urban sediments showed significantly higher heavy metal concentrations than agricultural or forested areas, with cadmium reaching up to 2.5 mg/kg; the average Igeo for cadmium was 0.24 in agricultural areas and 0.15 in urban areas, while the highest PLI values, reaching a maximum of 0.33, occurred in urban areas, and statistical analysis showed both urban emissions and agricultural activities significantly influenced heavy metal presence in the sediments.

USDA Economic Research Service (ERS) · USDA Economic Research Service · United States

A USDA Economic Research Service 'Chart of Note' based on the 2022 Census of Agriculture. 39% of the 880 million acres of U.S. farmland was rented or leased in 2022, a rate similar to 2017. Rental activity is concentrated in grain-producing regions such as the Mississippi River corridor, Corn Belt, and Northern Plains, with roughly two-thirds (68%) of rented farmland on operations of 2,000 acres or more.

Reyes Tejada N., Kooy M., Zwarteveen M. · Water International · Mozambique (Maputo)

A study grounded in the Infulene Valley, Maputo's main green belt, showing that irrigated urban agriculture drawing on various water sources has been consistently present throughout the Mozambican capital's history. The authors trace how urban planning evolved from 1960 onwards and what those policies meant for urban farming and the livelihoods depending on it. Documenting the city's imaginaries across four eras of Maputo's development, they find that agriculture occupied a prominent place in the post-colonial city and remains significant despite its vague recognition within urban planning after the shift to neoliberalism, and argue for acknowledging urban irrigated agriculture as an intrinsic feature of the city.

Agência Senado · Agência Senado (Senado Federal) · Brazil

An Agência Senado article reporting that Law 14,935/2024, sanctioned on July 26, 2024 and published in the official gazette on July 29, 2024, created Brazil's National Policy on Urban and Peri-urban Agriculture (PNAUP). The law defines urban and peri-urban agriculture as farming and livestock activity integrated into the urban ecological and economic system, and lists seven objectives including expanding food security for vulnerable urban populations, occupying idle urban spaces, generating alternative income, linking production to public procurement, promoting family labor and cooperatives, encouraging agroecological production, and spreading organic-waste recycling.

Setyardi Pratika Mulya, Heru Purboyo Hidayat Putro, Delik Hudalah · Geography and sustainability · Global

This 2023 global systematic literature review examined peri-urban agriculture (PUA) as an ecosystem service, focusing on urbanization pressures and governance. The review found that PUA is crucial for urban areas in terms of food supply, ecology, biodiversity preservation, disaster mitigation, and recreation. However, massive urban expansion is a primary cause of PUA loss, and sociocultural biases have led to institutional constraints on peri-urban management within existing political and regulatory frameworks.

Arcadius Martinien Agassin Ahogle, Sammy Letema, Gertrud Schaab, Veronica Ngure, Abraham R. Mwesigye, Nicholas Kibet Korir · Frontiers in Soil Science · Kenya (Nairobi)

This study assessed heavy metal and trace element contamination risks in peri-urban farmlands in Nairobi city catchment, Kenya, by analyzing 60 soil samples from ten vegetable farming zones. Results showed elevated concentrations of elements including As, Cd, Mn, Pb, and Zn, with some exceeding permissible agricultural thresholds. As, Cd, Hg, and Pb exhibited high ecological risks, with Cd contributing 46-66% of the overall risk.

Pengyao Li, Feinan Lyu, Yuan Zhou, Zhenrong Yu · Ecological Indicators · China (Beijing)

A study in Beijing, China, surveyed ground spiders and carabids in 12 plantation forests and nearby arable lands to assess the impact of afforestation on biodiversity. Intensive afforestation on arable lands did not increase local ground arthropod diversity. Ground arthropod abundance and species richness in plantation forests were significantly lower than in arable lands when surrounding arable land cover was relatively high, and overall landscape-scale diversity was not improved.

Mustafa Ali, Lenny Koh, Adolf Acquaye, Jonathan R. Leake, Jacob Nickles, Toby P. Evans, Gareth Roberts, Douglas Kemp · The International Journal of Life Cycle Assessment · United Kingdom (Sheffield)

This study conducted an integrated environmental and economic assessment of organic peri-urban horticulture using primary data from a farm in Sheffield, UK. A hybrid life cycle assessment (LCA) found that the global warming potential (GWP) for case study tomatoes was 3.53 kg CO2-eq, which was 1.87 times higher than imported Spanish tomatoes. Economic analysis showed that the marginal increase in the prices of tomatoes and courgettes from the case study farm was 4.6 and 5.15 times less than the market prices, leading to the conclusion that the studied production system is economically and environmentally sustainable compared to the existing scenario.

Zhiwei Zheng, Rung-Jiun Chou · Land · Taiwan (Taoyuan City)

This study investigated strategies for promoting edible landscapes in urban communities, focusing on the San-He community in Taoyuan City, Taiwan. Using in-depth interviews and non-participant observation, the research found that edible landscapes offer social, economic, and cultural benefits but face challenges in marketing, government policies, and growing techniques. Place branding strategies were identified as effective in addressing these challenges.

Louise Guibrunet, M Alvarez Rubio, Ileana Nuri Flores Abreu · Local Environment · Mexico (Mexico City)

This study advocates for broadening the definition of Alternative Food Networks (AFN) to include traditional agricultural systems. Analyzing the case of chinampas, a traditional agricultural system in Mexico City, it demonstrates that chinampas can be defined as an AFN due to their production modes, diverse distribution channels, and economic practices. The study concludes that traditional food systems offer an alternative to conventional systems and should be included in AFN research.

Geisa Zanini Rorato, Eugenia Aumond Kuhn, Bruno Luan Soares Paula de Mello, Rodrigo Vitória Alves, Giulia Togni Geremia · LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) · Brazil (Porto Alegre)

This study mapped and characterized 82 urban and peri-urban agriculture (UPA) initiatives in Porto Alegre, Brazil. It found that educational and health-related initiatives with social and ecological objectives predominated. A significant finding was that only half of these initiatives were active at the time of the survey, with the rest being inactive or closed, indicating structural fragilities, especially in peripheral and less dense areas impacted by the COVID-19 pandemic.

Stefano Corsi, Marta Dell’Ovo, Catherine Dezio, Antonio Longo, Alessandra Oppio · Cities · Italy (Milan)

This contribution proposes the case study of a multifunctional farmhouse, Cascina Biblioteca, in the Milan suburban area of Italy, to test an integrated preliminary evaluation model. The model aims to support urban planning and design decisions by maximizing the performance of ecosystem services provided by multifunctional agriculture (MFA), which includes food production, environmental preservation, and social inclusion.

Institut de Gestion des Techniques Urbaines, Université Larbi Ben M’hidi, MERIEM BENLAHRECHE, Saïd Mazouz, Département d’architecture, Université Larbi Ben M’hidi · Revue Roumaine de Géographie / Romanian Journal of Geography · Algeria

This article aims to explain urban phenomena in Hamma Bouziane, Algeria, a city known for its fertile land. The study indicates that the peri-urban agriculture of Hamma Bouziane is suffering negative repercussions due to unbridled urban expansion and socio-economic changes.

F.E. Awoyelu, R.A. Mebo · Agro-Science · Nigeria (Osun State)

This study assessed the effects of artisanal sand mining on peri-urban agriculture in Ife East and Ife Central Local Government Areas, Osun State, Nigeria, from 2015 to 2019. Data from 120 respondents (landowners, cultivators, residents) showed that cultivated land area decreased by 24.8% (from 48% to 23.2%), while sand-mined area substantially increased by 20.4% (from 14.6% to 35%). Landowners' decision to part with land for sand mining increased with age, household size, and farming as primary occupation, but decreased with higher education levels.

Ana María Bertolini, Patrícia Constante Jaime, Gabriela Marques Di Giulio · Saúde e Sociedade · Global

This article discusses the evolution of the concept of food and nutritional security (FNS) internationally, from post-World War II to the COVID-19 crisis, and the contributions of urban and peri-urban agriculture (UPA) to this agenda. Based on a critical literature review, the study notes that institutional responses to FNS often focus on crises and prioritize unsustainable globalized food systems. UPA practices have seen periods of rise and decline, evolving alongside the FNS agenda, and the article concludes by discussing the need to incorporate concepts of justice, global health, and a multidimensional view of sustainability into FNS and UPA discussions.

J. L. Miralles i Garcia · International Journal of Environmental Impacts · Spain (Valencia)

In L’Horta de València, a historical agricultural area in Valencia, Spain, challenges and opportunities in peri-urban agriculture management were investigated. A semi-structured survey focusing on a SWOT analysis was administered to key specialists involved in the 2018 legislative protection and 2019 management plan. The study aimed to evaluate how newly implemented tools are rectifying identified issues, but the abstract does not present specific findings from the survey.

Fabèkourè Cédric Kambiré, Sheick Sangaré, Rayangnéwendé Adèle Ouédraogo, Adama Zanga Ouattara · Journal of Agricultural Chemistry and Environment · Burkina Faso (Bobo-Dioulasso)

This study investigated the chemical quality of soils across six market gardening sites in Bobo-Dioulasso, Burkina Faso, considering the impact of fertilizer use and site location. Soil samples from 30 farms in urban, semi-urban, and rural areas were analyzed for carbon, total nitrogen, available phosphorus, and pH, revealing that soil chemical parameters, except for available K, were affected by site location. Urban farm soils were less acidic, and long-term organic matter application improved soil chemical quality, though soil quality tended to decrease with area expansion.

David Barkin · Edward Elgar Publishing eBooks · Global

This study contributes to the significance of a growing global movement where millions of people are taking control of their environments, creating "Territories of Life" to strengthen autonomy and produce food using traditional techniques enhanced by agroecology. Indigenous and peasant communities, who inhabit over one-quarter of the world's land and produce about 70% of global food, are restructuring their organizations and governance to control their ancestral territories. This movement has the potential to influence other communities and expand local and regional networks and markets worldwide.

Chinwe Okonkwo, Ifeoma Nwachukwu, Adebayo Adeyemi · Zenodo (CERN European Organization for Nuclear Research) · Nigeria (Ibadan)

This systematic review synthesized evidence on the determinants of adoption and disadoption of improved cassava planting material (ICPM) by peri-urban smallholders in Ibadan. The review found that disadoption rates can exceed 40% within three seasons post-initial adoption. Perceived Usefulness was the strongest adoption predictor, while Perceived Ease of Use was often compromised by logistical barriers, and vendor trust influenced continued use.

Wojciech Sroka, Piotr Sulewski, Jarosław Mikołajczyk, Karol Król · Agriculture · Poland

This study, based on a survey of economically successful peri-urban farms in Poland, identified success factors and major barriers to their development. The research shows a considerable convergence in business solutions in recent years, particularly in customer relationships and channels. According to respondents, the success of peri-urban farms is primarily determined by three groups of factors: motivation, diligence, and creativity; high quality of products and services; and cultivating deep bonds with customers. While farm managers indicated relatively few internal problems, urban pressure was considered the most significant external barrier to development.