Research & reports

Carmel Katz, Michael Ben‐Yosef, Eitan Goldshtein, Gilad Gefen, Yafit Cohen · Journal of Pest Science · Global

This study integrated nationwide pest monitoring data (2900 traps, 2017–2023) with high-resolution spatial layers of urban land cover to examine how settlement characteristics influence medfly abundance in adjacent citrus orchards. Using an ecoinformatics approach, it found that vegetation cover in settlements was positively linked to medfly abundance at close distances, and low building cover and high impervious cover were also associated with elevated medfly levels.

Rintaro Kinoshita, Hanna Takahashi, T. Kato, Daniel N. Sila, Hiroshi Koaze, Masayuki Tani · Soil Science & Plant Nutrition · Kenya

An evaluation of soil profiles, surface soil conditions, and nutrient management was conducted in Kiambu County, Kenya, at the Tigoni experimental station and 26 surrounding small-scale peri-urban farms. The study found significant differences in surface soil nutrient status between the experimental station and surrounding farms, with available phosphate and exchangeable calcium levels being excessively high in nearly half of the peri-urban farms, contrary to past findings. In contrast, phosphate levels at the experimental station were mostly deficient, and magnesium was deficient in both settings.

Ngetleh Ngesang, Marietta Yilen · International Journal of Research and Innovation in Social Science · Cameroon (Bamenda)

This study investigated the contributions of urban and peri-urban agriculture (UPA) innovations to resource use efficiency (RUE) in Bamenda City, Cameroon. Data was collected from 402 UPA farmers in Bamenda City using questionnaires, and the Ordinary Least Squares (OLS) method was employed. Empirical findings showed that the practice of innovative UPA has an overall positive and significant effect on RUE, with the effect being higher when farmers use inorganic rather than organic fertilizers.

Victória Pansani Silveira Maia, Sílvia Aparecida Mikami Gonçalves Pina · Periódico Técnico e Científico Cidades Verdes · Global

This case study analyzed urban and peri-urban agriculture (UPA) experiences in India (Bangalore, Hyderabad, Visakhapatnam) and an agroforestry system in Campinas, Brazil, using literature review, document analysis, and participant observation. The study identified common obstacles to agroecological practices, including land tenure insecurity, real estate pressures, lack of specific public policies, and uneven community engagement. It also highlighted potentialities such as care networks and food resilience, emphasizing the need for institutional support and public policies.

S. Pickles, Anita Stefoska‐Needham, Karen Charlton · Renewable Agriculture and Food Systems · Global

This scoping review was undertaken to identify factors affecting the economic sustainability and associated viability of soil-based commercial farms located in urban and peri-urban settings within OECD member countries. Following the PRISMA ScR methodology, 170 eligible articles were identified from four scientific databases. This review found that many soil-based urban farms in OECD countries struggle to achieve economic sustainability or organizational viability.

Girma Mulu Alemu, Sophie Schramm, Wilbard Kombe · Cogent Social Sciences · Ethiopia (Addis Ababa)

This qualitative study in peri-urban Addis Ababa, Ethiopia, explored the impacts of peri-urbanization on smallholder farmers' socio-economic conditions. The research found that peri-urbanization leads to the erosion of capital assets, with dwindling agricultural land causing tenure insecurity and disrupting livelihoods. This process exacerbates smallholder farmers' marginality by weakening social ties and mutual support systems.

Hernán José Hernández Durán · Asian Journal of Science Technology Engineering and Art · Global

This study points out that small-scale food production within urban and peri-urban environments can decrease dependence on external food sources, support environmental sustainability, bolster local economies, and improve urban residents’ quality of life. However, the implementation of urban agriculture faces considerable challenges, including limited access to cultivable land, inadequate infrastructure, and regulatory constraints. Focusing on San Miguel, El Salvador, this article explores the role and impact of urban agriculture in addressing food insecurity and provides strategic recommendations to enhance urban resilience and sustainability.

Gabriela Civeira, Florencia Rositano · Conicet · Argentina (Buenos Aires)

This study analyzed the environmental, social, and economic factors of agricultural production in the Buenos Aires Metropolitan Region (RMBA) across 28 municipalities, using National Agricultural Census data and an adapted ecosystem services (SE) estimation model. Findings indicated that 97.4% of small and medium-sized horticultural producers use conventional management, with only 2.6% employing non-conventional practices. Structural problems identified include informal labor, limited technical access, and urban pressure, highlighting the need for public policies to strengthen more sustainable production systems.

Christine McCullum-Gómez, Yuri Milena Castillo Quiroga, Monica Diaz-Beltran · Academia Nutrition and Dietetics · Colombia

This article describes multiple efforts to facilitate the transition to a more sustainable food system in Colombia. Public health nutrition professionals can increase food security, build food sovereignty, and facilitate this transition through community food gardening and peri-urban and urban agriculture projects, food waste reduction programs, and sustainable menu projects incorporating indigenous, native, and local foods. Such projects should be participatory and tailored to meet the needs of stakeholders in the different regions of Colombia.

Kejela Gnamura, Michael Akwasi Antwi, A Belete · Land · Ethiopia (Addis Ababa)

This mixed-methods study investigated the effects of urbanization-induced displacement on economic capital security by comparing 223 evicted and 223 non-evicted peri-urban farming households in Addis Ababa, Ethiopia. Logistic regression and thematic content analysis revealed that evicted households are approximately 72.7% less likely to achieve economic security compared to non-evicted households. The study concluded significant differences in household economic capital security between the two groups.

Laxman Barua, YOGITA ADHIKARI, Kuldeep Naik · International Journal of Agriculture and Nutrition · India (Prayagraj)

This research assessed heavy metal concentrations in agricultural soils near the Naini industrial area in Prayagraj, India, and evaluated remediation strategies. Lead and cadmium concentrations at 0.5 km from the industrial zone exceeded Indian permissible limits (Pb: 67.8 mg/kg vs 50 mg/kg; Cd: 6.4 mg/kg vs 5 mg/kg). A pot trial showed that Brassica juncea removed 34.7% of Pb and 41.2% of Cd, while lime + biochar reduced Pb by 52.4%. A combined approach reduced bioavailable Pb to below the permissible limit.

Paule Moustier, Jacques Pagès · HAL (Le Centre pour la Communication Scientifique Directe) · Africa

This study examined peri-urban agriculture in Africa, identifying it as a significant income and food source for the urban poor, but subject to constraints, primarily land pressure. Analysis of the vegetable supply chain in Brazzaville showed rural and peri-urban areas are complementary, with different types of vegetables originating from each. Land constraints, transport, access to inputs, and technical assistance are crucial factors determining production location. Historical analysis invalidates hypotheses of linear decline or development through intensification for peri-urban agriculture.

Suzana Márcia Souza dos Santos, Clecia Simone Gonçalves Rosa Pacheco · Editora Científica Digital eBooks · Brazil

This study analyzed the experience of the Vila Galvão Women Workers' Benevolent Association in Casa Nova, Bahia, Brazil, which produces organic vegetables in urban and peri-urban contexts. The study aimed to characterize the productive, commercial, and sociocultural aspects related to organic vegetable production and commercialization, identifying main marketing channels and understanding difficulties faced by producers. It concluded that organic production, combined with collective organization and the strengthening of the solidarity economy, represents a viable alternative for a more just, sustainable, and female-led rural development model.

Marcus Robinson, Jacky Bowring, Shannon Davis, Sarah Edwards · Landscape Research · Global

This narrative review explored how urban expansion at the rural-urban fringe drives the loss of productive agricultural land, biodiversity, and ecosystem services. The review examined how these competing interests can be negotiated spatially, emphasizing the role of multifunctional green infrastructure to integrate both food production and ecological function across the urban-rural continuum.

Letícia Englete de Mello, Dirlane de Fátima do Carmo, Daiane Cecchin, Leonardo da Silva Hamacher, Marcel Carvalho Abreu, R. M. Anjos, Mariana Vezzone · Revista de Gestão Social e Ambiental · Brazil (Rio de Janeiro)

This study investigated the profile of 159 urban and peri-urban agricultural producers across 29 municipalities in Rio de Janeiro State, Brazil, using quantitative interviews and statistical analysis. Producers were predominantly men over 50 with limited education, cultivating small plots with organic methods but receiving little technical support. Key challenges identified were a lack of assistance and resources, and urban agriculture's potential is hindered by the absence of effective public policies.

Mohammed Abdulai, Mohammed Tanko, Alhassan Andani · World Development Sustainability · Burkina Faso (Ouagadougou)

This study empirically investigated the link between municipal wastewater (MWW) use and vegetable productivity among 416 vegetable farmers in Ouagadougou, Burkina Faso, using survey data. It was found that MWW use alone is associated with a higher value of vegetable output, but regulation through contacts with extension agents reduces the agronomic and economic benefits of using MWW for irrigation.

Fuchaka Waswa, Duncan Gichabe, Ruth Kahuthıa-Gathu · Journal of the Kenya National Commission for UNESCO · Kenya (Ruiru)

This study investigated land use changes in Ruiru Sub-County, Kenya, from 1988 to 2024 using GIS. By 2024, agricultural land had decreased by 45.62%, while urban land use increased by 509%, and bare/rocky areas rose by 133% due to abandoned stone mining. The decline in agricultural land leads to reduced industrial crop areas and a shift to leafy vegetables, with an expected increase in agro-chemical use in intensive peri-urban farming.

Vázquez-García, Amparo, Elizondo, Cecilia · AgEcon Search (University of Minnesota, USA) · Mexico

Home gardens in San Felipe Ecatepec, San Cristóbal de Las Casas, Mexico, are systems with diverse plant species and areas ranging from 600m² to 2500m². This study aimed to identify forms of resistance against neoliberal policies and urban sprawl, finding that home gardens provide healthy, fresh food, create useful spaces, and preserve agrobiodiversity. These gardens are considered spaces of resistance based on traditional knowledge, helping to bolster food sovereignty. The research was conducted during the two years of the COVID-19 pandemic.

Abdul Rahim Mohammed Sabtiu, Isaac Amankona Hinne, Isaac Kwame Sraku, Daniel Kodjo Halou, Richard Tettey Doe, Simon K. Attah, Fred Aboagye‐Antwi, Yaw A. Afrane · Malaria Journal · Ghana (Accra)

A study in Accra, Ghana, investigated mosquito larval habitats and their impact on Anopheles gambiae s.l. larvae density, conducting surveys at 15 locations during 2022's dry and rainy seasons. Of 727 potential habitats, 65.34% were positive for Anopheles larvae, with drainage ditches being the most common type. Irrigated urban farming sites showed the highest abundance of An. gambiae s.l. larvae, particularly during the rainy season, indicating that urban farming contributes to increased mosquito breeding habitats.

Justin B. Richardson, Eric Vukicevich, Eric C. Sirkovich · Bulletin of Environmental Contamination and Toxicology · United States

Soils, sap, and maple syrup were collected from four artisanal maple syrup producers in four suburban areas across the northeastern United States to assess nutrient and trace element concentrations. Soil arsenic and lead concentrations approached or exceeded EPA limits. Sap and syrup arsenic, cadmium, nickel, lead, and zinc concentrations reached or exceeded FDA limits for food.

Sergi Ventura, J.R. Armengol Miró, David Camacho-Caballero, Enric Casellas, Ricard Segura-Barrero, Alberto Martilli, gara villalba · Urban Climate · Spain (Barcelona)

This study used the Pseudo Global Warming method and WRF model to assess urban heat adaptation strategies in the Metropolitan Area of Barcelona. Three strategies were evaluated: increasing rooftop albedo, implementing irrigated sedum green roofs, and increasing peri-urban agriculture and urban parks. While increasing rooftop albedo provided the greatest daytime cooling (−1.75 °C), and green roofs and peri-urban agriculture showed moderate regulation, none of the strategies fully counterbalanced the projected 6 °C temperature increase by 2100, indicating a limited capacity of these adaptations under severe warming scenarios.

Human Sciences Research Council · Figshare · South Africa

A 2025 study from South Africa's Western Cape used propensity score matching on data from 220 households — those participating in Department of Agriculture-funded backyard garden projects plus a control group — to assess urban agriculture's contribution to household food security. Households engaged in urban agriculture benefited from greater dietary diversity and income from selling produce, but the study found no significant positive contribution of urban agriculture to food security.

Tantri Indriani Indriani · PANGRIPTA · Indonesia

Horticultural production dynamics in Malang Municipality, Indonesia, were analyzed from 2019 to 2023 using primary data from the Malang City Statistics Agency's Horticulture Statistics Report, covering four commodity groups: seasonal fruits and vegetables, annual fruits and vegetables, biopharmaceutical crops, and decorative plants. Significant fluctuations were found in harvested area and production, especially in seasonal crops such as oyster mushrooms and chili peppers sensitive to market prices and climate variability, alongside a downward trend in biopharmaceutical crops such as turmeric and ginger, a lemon production surge of over 1,100% between 2022 and 2023, and relative stability in the decorative plant sector.

Shuang Gan, Wanglin Yan · Applied Geography · Japan

A multi-scale analytical framework examined changing relationships between urban expansion and farmland protection during the transition from population growth to decline, applied to the Odawara region of Japan. Since population decline began in 2010, conflicts between urban expansion and farmland protection have remained concentrated along the urban-agricultural fringe, with farmland loss and fragmentation continuing despite reduced development pressure, and population change was found to indirectly cause paddy field loss via built-up land expansion with a five-year lag. The main driver of farmland loss has shifted from urban development to agriculture-related loss driven by labor shortages and low farming efficiency, and agricultural promotion areas moderately retain paddy fields but offer only limited protection against fragmentation.

Delly Salsabila Amanda, Rahmat Hidayatulah, Susilawati Susilawati · Jurnal Lahan Suboptimal Journal of Suboptimal Lands · Indonesia

A study evaluating the effects of compound NPK fertilizer dosage and a floating planting system on lettuce (Lactuca sativa L.) growth, set in South Sumatra, Indonesia—a region with significant potential for floating agricultural systems amid urban agriculture expanding under population pressure and climate change. Using a Randomized Block Design with four fertilizer treatments (control P0, and P1-P3 at 1.12, 2.24, and 3.36 g NPK compound per polybag) each replicated three times across 12 units, the study assessed plant height, leaf number, fresh plant weight, fresh and dry root weight, root length, leaf greenness, leaf area, and canopy area via analysis of variance and DMRT at 5%. The 2.24 g/polybag dose (P2) produced the most favorable growth and yield, with the highest mean values across all parameters, though the calculated optimum dose was 2.05 g/polybag, which the study recommends for subsequent research.