Research & reports

Johne P., Rao Bangady Killur R. · Soil and Sediment Contamination: An International Journal · Papua New Guinea

An assessment of trace metals in the soils of peri-urban food gardens at Lae, Papua New Guinea's second city and its main industrial centre, and of the ecotoxicological risk they pose. The subject — food growing on the fringe of an industrial city — is barely documented anywhere in the South Pacific. Published online 28 June 2026; the publisher does not make the abstract openly available, so only the study's scope is recorded here.

Elnazir Ramadan, Suliman Zakaria Suliman Abdalla, Ali Al Ahbabi, Tarig Gibreel, Naeema Al Hosani · City and Environment Interactions · Asia

This study explored factors influencing agricultural technology adoption among small-scale urban farmers in pre-urban areas of the arid Gulf Cooperation Council (GCC) states. Using a structured questionnaire and ordinal logistic regression, it identified performance expectancy, effort expectancy, social influence, facilitating conditions, trust, and cultural norms as key drivers of adoption. Perceived risk negatively influenced adoption, while compatibility was not statistically significant.

Nurudeen Issifu, Owusu Amponsah, Daniel Kwame Blija, Stephen Appiah Takyi, Abdul Majeed Issah, Abdul-Wahid Alhassan · International Planning Studies · Ghana

This study assessed whether mixed residential-agricultural land use can sustain urban agriculture and if residential landowners in rapidly urbanizing Ghanaian cities are willing to allocate plot space to agriculture. Researchers surveyed 280 landowners across four peri-urban settlements in Kumasi and used geospatial data to estimate available residential space. Nearly four out of five landowners were willing to cede their backyards for micro-farming, with geospatial estimates identifying 75.65 hectares of available residential area across the settlements, equivalent to approximately 0.03 ha per plot (about 23% of an average 0.13 ha plot). These findings suggest the potential of backyard micro-farming as a strategy for sustaining urban agriculture.

César Nunes de Castro · Instituto de Pesquisa Econômica Aplicada (Ipea) eBooks · Brazil

This chapter aims to provide an overview of urban and peri-urban agriculture (AUP) in Brazil and evaluate the inherent challenges of the activity, including the potential role of the National AUP Program (PNAUP) in promoting its development.

Sergio Osorio Cañadas, Ek del Val de Gortari · Dialnet (Universidad de la Rioja) · Mexico (Morelia)

This study investigated pollinators in seven urban and periurban orchards in Morelia, Mexico, during an annual agricultural cycle from October 2022 to June 2023. Monthly 5-hour censuses at each site revealed a considerable diversity of pollinators, with an average of 60 different species including bees, wasps, flies, butterflies, beetles, and hummingbirds, visiting the orchard flowers. It was also observed that each plant species attracted different pollinators.

Lokesh Ramachandran, Keerthivasan Ragupathi, Nithishkumar Govindaraju, Ajay Raja Anandhan, Dinesh Devarajan · Zenodo (CERN European Organization for Nuclear Research) · Argentina

This chapter examines agroecology as a sustainable production paradigm for the horticultural sector, facing challenges like climate change and resource depletion. It reviews the conceptual foundations of agroecology, its application to horticulture, and advances in agroecological practices. Case studies, such as peri-urban horticulture in Argentina, illustrate its promise, but note that a full transition remains incomplete.

Olivier Parfait Bissemb, Rosette Christelle Ndjib, Patrice Brice Mvogo Ottou, Jacques Bruno Ngotta Biyon, Zenabou Ndiang, Georges Maxime Lamy Lamy, Eric Ngansop Tchatchouang, Ivant Stevy Nganmo, Jean Lagarde Betti, Richard Jules Priso · Journal of Environmental Protection · Cameroon (Douala)

This study assessed floristic diversity and agricultural practices around five stormwater drains in Douala, Cameroon, identifying 67 species from 24 families. Floristic diversity, measured by the Shannon-Weaver index (H'= 0.99) and low evenness (E = 0.23), indicated an unbalanced plant community dominated by a few cultivated and ruderal species. The analysis also revealed significant homogenization between drains, suggesting common agricultural practices and environmental pressures in these polluted environments.

Celeus Baral, Hem Sagar Baral, Carol Inskipp, Rajana Maharjan · Our Nature · Nepal

This 14-day study examined Lepidoptera diversity in semi-urban agricultural landscapes around Lumbini, Nepal, documenting 30 moth species from six families and 39 butterfly species from five families across various habitats. Moth populations were dominated by Erebidae, and butterfly diversity by Nymphalidae, showing resilience in disturbed habitats. Statistical analyses revealed that shrubland and agricultural habitats supported the highest species richness and evenness, while grasslands hosted fewer species.

Kejela Gnamura, Michael Akwasi Antwi, Abenet Belete · Research of Economic and Financial Problems · Ethiopia (Addis Ababa)

This mixed-methods study in Addis Ababa, Ethiopia, compared 446 households (223 displaced and 223 non-displaced) to investigate the effects of urbanization-induced displacement on economic capital and food security. Evicted households showed a 72.7% lower likelihood of achieving economic capital security and 93.4% reduced odds of maintaining food security compared to non-evicted households, indicating significant negative differences.

Shamir Abujder · AGRO - ECOLÓGICA · Bolivia (Sucre)

This study analyzed the market dynamics of fresh organic products in urban districts of Sucre, Bolivia, examining their potential to strengthen food security and foster sustainable enterprises. The research focused on two groups: consumers and producers/marketers, within the context of urban and peri-urban agriculture. Using a qualitative descriptive approach, it aimed to provide knowledge on the economic viability of commercializing fresh organic products and contribute to citizen knowledge on responsible and healthy consumption aligned with agroecology.

N Suhana, Smitha Baby · Archives of Current Research International · India

This study in the Central region of Kerala, India, assessed the entrepreneurial potential of urban and peri-urban agri-enterprises across multiple dimensions. Using Principal Component Analysis, it identified strategic growth orientation and green innovation as key pillars, with marketing competence being the most significant dimension and ecological sustainability having the least impact. The Entrepreneurial Potential Index (EPI) showed that 66% of enterprises had a medium potential, and value-addition firms had the highest EPI, while aquaponics had the lowest.

Marco Focacci, Isabella De Meo, Alessandro Paletto, Fabio Salbitano · Agroforestry Systems · Italy

A study analyzed urban plans, national laws, and regional legislation in Italy, along with interviews with decision-makers, to examine the occurrence of Urban and Peri-urban Agroforestry (UPAF). Findings showed that 4 out of 140 Italian cities intentionally included agroforestry in voluntary green plans, and 12 cities had incidental UPAF elements in compulsory documents. This indicates agroforestry is present but not widely incorporated, with grass-root organizations and knowledge hubs being crucial for its promotion.

Paula Marques Crelier, Manoel Jerônimo Moreira Cruz, Danusia Ferreira Lima · Seven Editora eBooks · Global

A controlled laboratory experiment cultivated BRS Leila lettuce (L. sativa) in samples contaminated with lithium carbonate (Li₂CO₃) at concentrations of 150 and 200 mol/L. The study found that lithium correlates with other alkaline and alkaline earth elements in the leaves and roots of the lettuce. This indicates a contamination pathway where lithium is absorbed by the plant.

Firdavs Berdikulov, Iroda Orifjonova, Bekhzod Eshboev, Jumanazar Xolmurzayev, Bakhtiyor Abdusayitov · Springer Link (Chiba Institute of Technology) · Uzbekistan (Samarkand)

This study examined agricultural growth in Samarkand, Uzbekistan's peri-urban regions from 2000 to 2024, using government data and predictive modeling. It found that urban populations surged while arable land declined, and the vegetable surplus, though currently meeting demand, began shrinking around 2015, suggesting a tipping point toward shortages. The research indicates that without proactive measures like smarter land allocation and advanced irrigation, Samarkand risks a structural food deficit within a decade.

Ayari G. Pasquier Merino, Simone Buratti · · Mexico (Mexico City)

This study analyzed the conditions and challenges in the logistics of transporting merchandise from production areas to commercialization spaces, using a case study of Mexico City’s peri-urban agricultural producers. Qualitative research, conducted from 2019 to 2022, involved 60 interviews with production and distribution project managers, a discussion workshop on transportation issues, and visits to production and distribution spaces. Results indicate that infrastructure and logistics for goods transportation are a key issue for the successful integration of small, peri-urban producers into urban markets. It was suggested that transport and logistics must be addressed for these producers to become viable economic actors.

Fatiha Hakimi, Sara Sehli, Abeer Hashem, Graciela Dolores Ávila-Quezada, Elsayed Fathi Abd Allah · Cogent Food & Agriculture · Morocco

In peri-urban Rabat, Morocco, a study compared the sustainability of 30 farms (15 organic, 15 conventional) using the IDEA method, assessing agro-environmental, socio-territorial, and economic dimensions with 18 indicators. Organic farms excelled in agro-environmental sustainability and demonstrated long-term economic resilience. Conversely, conventional farms, while more productive, faced socio-territorial limitations and economic dependence on external inputs.

Sadiq Ur Rehman, Muhammad Adeel Mannan, Muhammad Ahsan Shaikh, Muhammad Uzair · Memoria Investigaciones en Ingeniería · Pakistan

In Pakistan, an IoT-based solar-powered smart vertical farming system was proposed to address agricultural challenges like water scarcity. A six-week trial cultivating cherry tomatoes showed the system achieved a 60-65% yield increase, 40% energy saving, and 28.57% water consumption reduction compared to traditional methods. However, limitations included the small trial size and lack of long-term environmental impact data, and scalability challenges such as cost, maintenance, and local restrictions need to be addressed for wider adoption.

SORO Sibirina, TRAORE Aboulaye, KOFFI N’guessan Mathurin, TRAORE-OUATTARA Karidia · World Journal of Advanced Research and Reviews · Côte d'Ivoire (Daloa)

In Daloa, Côte d'Ivoire, tomato and eggplant production is limited by biotic diseases. This study evaluated the antifungal activity of six plant extracts against soil-borne fungal pathogens affecting tomato and eggplant. Eggplant plants treated with Securidaca sp exhibited the greatest tolerance to disease, with a severity index of 2.1%. Aqueous extracts of Securidaca sp and Solanum sp reduced mortality rates more effectively than synthetic fungicide, suggesting they can be recommended as an alternative for controlling soil-borne fungal diseases in tomato and eggplant.

Hugo Rochard, Céline Clauzel, Nathalie Blanc · Urban Ecosystems · France (Paris)

The impact of civic-led hedgerow planting on landscape connectivity was assessed in the southern Paris periurban context. A graph modeling methodology was applied to 94 hedgerow sites, revealing that these sites strengthen landscape connectivity. This quantitative assessment was coupled with qualitative data collected from local civic leaders regarding their perception of social-ecological functions associated with hedgerow planting.

Moschella Miloslavich, Paola · Portal de Revistas PUCP (N/A) · Peru (Cajamarca)

This study in Cajamarca, Peru, analyzed the expansion of the city onto vital agricultural land, examining perceptions, consequences, and solutions through surveys and interviews. It found that weak regulations and external factors accelerate informal subdivision of rural properties, leading to future urban areas lacking public spaces and services. Despite high regard for agricultural land, comfort and the land market override beliefs in decision-making, and initiatives to protect the valley were unsuccessful due to permissive regulations and a lack of political will.

Meznanat Tame, Kassahun Gashu, Bantayehu Ayalew Workineh · City Territory and Architecture · Ethiopia

In north-west Ethiopia, a study analyzed urban expansion driving factors, compensation, and livelihood coping strategies of displaced farmers surrounding medium-sized towns. Primary data was collected through 350 survey questionnaires, two FGDs, and six key informant interviews. Findings revealed that compensation was mostly cash-based, and social relationships and community values decreased after displacement. The study suggests a need for proper urban land governance with a participatory approach that includes farmers, and for appropriate urban planning and land policy to improve urban land use efficiency.

Manamaya Mishra, Dipendra Bikram Sijapati, Bijaya Mani Devkota, Shakuntala Triphathi · Journal of Ecohumanism · Nepal (Kirtipur, Kathmandu)

This paper investigated urban agriculture in terms of urban food security and employment in Kirtipur, Kathmandu, from February to April 2023, surveying 64 households with over 4 Ropany (0.2 ha) of farmland across three urban pockets. The study found that lack of irrigation facilities was the most crucial problem for agricultural development. Other major issues included a lack of modern inputs and technologies, decreased youth interest in agriculture, inadequate road networks, and financial problems.

Sheetal Patil, Simi John, Pooja Sagar, Narmada A. Khare, Kruthika Ganesh · · India

This book explores the integration of regenerative urban agriculture within sustainable cityscapes, using the IIHS Kengeri Campus in India as a case study. The campus functions as a 'living lab' for sustainable soil and water management, renewable energy, biodiversity conservation, and urban food production. By experimenting with interdisciplinary approaches, the book highlights innovative models for food and water security in rapidly urbanizing environments.

Lydia Oladoja, Emmanuel Ajibola Olagunju, G. O. Adesina, Oluwakemi Ajayi · Journal of rural and community development · Nigeria (Ogbomoso)

This descriptive survey in Ogbomoso, Nigeria, investigated peri-urban agriculture (PUA) as a means to address food insecurity. Questionnaires were distributed to 60 respondents, including farmers, government employees, traders, and artisans. The findings indicated that more married men and women engaged in farming than unmarried farmers. The study concluded that PUA has significant potential to ensure a constant food supply in Ogbomoso by providing direct access to locally grown food for residents and markets, provided its opportunities and obstacles are adequately managed.

Maryam Noor, Liaqat Ali Waseem, Khadija Ashraf, Aqeel Haider, Komal Farhat · International Journal of Innovations in Science and Technology · Pakistan (Faisalabad)

This study assessed the impact of peri-urban agriculture on food self-sufficiency in Faisalabad, Pakistan, by collecting data from 100 peri-urban farming households and analyzing land use changes from 2018 to 2023 using GIS. Households allocated an average of 12.9 Kanals for seasonal vegetables, consuming nearly half domestically and selling the rest locally. A significant association was found between positive nutritional perceptions and regular access to fresh produce. However, limited government support, weak stakeholder coordination, and inadequate market access were identified as key barriers limiting its broader impact.