Research & reports

Michael J. Ormsby, Luke Woodford, James Joseph Mwesiga, Winnie Ernest, Dativa J. Shilla, Daniel Abel Shilla, Richard S. Quilliam · Environmental Pollution · Africa

This study investigated plastic debris as a reservoir for multidrug-resistant (MDR) enteric bacterial pathogens at two peri-urban agricultural sites in Dar es Salaam, Tanzania. Analysis of 140 environmental samples (soil, water, vegetation, plastic debris) showed higher concentrations of culturable pathogens on plastic debris, with presumptive E. coli loads of ~1 × 10^3 CFU per piece. Plastic debris harbored a greater proportion of MDR strains, including E. coli and K. pneumoniae resistant to critically important antimicrobials, indicating that plastic waste facilitates the survival of MDR pathogens and poses health risks.

Human Sciences Research Council · Human Science Research Council SA · South Africa

This article explores how urban women participate in urban and peri-urban agriculture (UPA), the constraints they face, and the policy support they need, using evidence from a sample of farming projects around the Cape Metropolitan Area. Urban women farmers primarily access land through social networking and work collectively. Almost all projects engage in in-kind donations to schools and HIV/AIDS patients, with women-only projects distributing 25% of their output as social responsibility.

Thembani Moyo, Vuyiswa Letsoko, Mhlalisi Gavu Mndzebele, Siphiwe Mbatha, Nonpumelelo Mzobe, Trynos Gumbo · · South Africa (Johannesburg)

In Johannesburg's marginalized settlements, limited infrastructure resources negatively impact household livelihoods, necessitating the development of planning support systems. Urban agriculture has emerged as a critical approach to enhancing food security and economic empowerment, and this study employed a mixed-method approach combining indigenous knowledge systems with spatial data to assess land suitability. The findings presented a land suitability index demonstrating how integrating GIS and citizen science strengthens urban resilience through adaptive land use, improved local food systems, and climate change mitigation.

Abie Assres Fenta, Habtie Anmaw · Discover Sustainability · Ethiopia (Debre Markos)

This qualitative study explored the adaptive livelihood strategies of evicted peri-urban farmers around the metropolis of Debre Markos, Ethiopia. Findings confirmed that farmers tend to hand over their land with insufficient compensation and are compelled to adapt to new livelihoods after losing farmlands. Many displaced young farmers experienced bankruptcy in new businesses due to a lack of business skills, and aged displaced farmers faced challenges adapting to new ways of life. The government did not provide adequate attention to training evicted farmers in technical, financial, and business planning.

Desalew Meseret Moges, Kristoffer Mattisson, Ebba Malmqvist, P Olsson · Environmental Challenges · Ethiopia

A study using satellite data from 2021–2024 examined urban heat and urban green space (UGS) patterns during the hot season across four Ethiopian cities. It found that UGS expanded in all cities, mainly along urban edges, and offered strong but spatially uneven cooling benefits. Daytime surface temperatures decreased, but nighttime temperatures showed mixed results, and dense central areas remained exposed to heat.

F. I. Alagbe, B. J. Adewumi, Mathew Dayomi, O. A. Ibitoye · Zenodo (CERN European Organization for Nuclear Research) · Nigeria (Lagos)

This study investigated the integration of biophilic design and productive green infrastructure (PGI) in mixed-use developments on Lagos Island, Nigeria, as an urban renewal strategy. Data from 303 architects, urban planners, and real estate developers revealed that while ecological regeneration opportunities exist, the area faces limitations from high density and inadequate infrastructure. Respondents showed moderate to high awareness of biophilic principles, and PGI incorporation was linked to perceived gains in social interaction, biodiversity, and economic value.

Amare Molla Dinku, Goedele Van den Broeck · International Journal of Agricultural Sustainability · Ethiopia

This qualitative study explored the technical, institutional, and commercial aspects of urban agriculture (UA) in two Ethiopian secondary towns, Dessie and Kombolcha, through 68 key informant interviews and 11 focus group discussions. It found that nearly 90% of local leafy vegetables are sourced via UA, but insecure land rights, limited policy support, and informal trading systems hinder its impact. Informal markets also cause post-harvest losses, disproportionately affecting women.

M.; id_orcid 0000-0002-0118-4484 Simataa, R.I.; id_orcid 0009-0004-4345-5467 Primus, H.; id_orcid 0000-0002-0447-5914 Romijn, Rianne Valkenburg, J.C.C.M.; id_orcid 0000-0003-1190-6417 Huijben · TU/e Research Portal · Benin

Deliverable D8.3 of the URBANE project designed a co-creation workshop methodology for agroecological business models with the University of Abomey Calavi (UAC) and Eindhoven University of Technology. This methodology was applied in a multi-actor workshop in Benin to co-design sustainable innovation System Business Models (SysBMs) for local agrifood contexts. The main outcome is a workshop design template, including instructive videos, documented in a facilitator's handbook.

Wendpouiré Léticia Nadège Nonguierma, Jean-Marie Dipama · Afrique contemporaine · Africa

A study of the "Ceinture verte" (Green Belt) in Ouagadougou, Burkina Faso, as a nature-based response to climate adaptation. Established in 1976 and relaunched in 2018, the initiative combines forestry development with urban agriculture, aiming to contain urban sprawl, improve the local climate and strengthen the capital's resilience. The study combined a diachronic analysis of Landsat imagery from 1984-2024 with interviews of institutional actors, associative partners and direct beneficiaries. Results show significant contributions — expansion of dense vegetation in some areas, a perceived improvement in air quality, the creation of income-generating market-gardening activities, and the inclusion of vulnerable populations — but also reveal strong constraints: illegal occupations covering a significant share of the land, fragmented governance, limited access to water, security fragility, and still-limited involvement of local residents. The study discusses the feasibility of a trajectory to 2050 between an optimistic scenario conditional on structural reforms and a critical scenario underscoring current limits, and offers lessons transferable to urban adaptation policies in other Sahelian metropolises.

Mohamed Beidari, Inoussa Tougri, Bernard Lamien · Journal of Environmental Protection · Africa

For Burkina Faso, a circular Water, Energy, and Food (WEF) nexus framework was developed that couples wastewater reuse in peri-urban agriculture with biomass energy recovery from crop residues, using Material Flow Analysis, a screening-level Life Cycle Assessment, four-scenario simulation (baseline, water reuse only, biomass only, full circular integration) calibrated for 2005-2024, an exploratory STIRPAT elasticity analysis, and Monte Carlo uncertainty propagation around a composite Nexus Efficiency Index. Every quantitative result is a simulated output from a literature-constrained synthetic dataset rather than an empirical measurement for Burkina Faso; under the central assumptions, the fully integrated circular scenario was modelled to reduce freshwater abstraction by about 25-40%, increase yields by 20-40%, and cut farm-gate CO2-equivalent emissions by 30-45% relative to the linear baseline. The mobilizable biomass potential of cotton stalks and rice husks was estimated at around 44,891 tonnes of oil equivalent per year, with indicative payback periods of 5-10 years for small biogas digesters and gasifiers in representative peri-urban configurations.

Amelia L. Abrie, Benjamin Coetzer · The American Biology Teacher · South Africa

This intervention, piloted with a group of biology teachers from Gauteng Province, South Africa, used the mobile plant-identification app Pl@ntNet to address the widely documented problem of low plant awareness among teachers and, by extension, students. It began with a workshop on why lack of plant awareness matters, then introduced teachers to Pl@ntNet — which identifies plants in three simple steps — through a plant hunt in the school garden to reinforce learning. Teachers reported more positive perceptions of teaching plant-related topics after the intervention. Challenges identified included the availability of internet data, limited biodiversity in school gardens, time constraints, and discipline issues with learners.

Meron Worku, Michelle Holdsworth, Marie T. Ruel, Ana Irache, Kaleab Baye, M Catherine Spires, Nicolas Bricas, Rebecca Pradeilles · Maternal and Child Nutrition · Africa

A Photovoice study in Addis Ababa, Ethiopia, had women of reproductive age photograph challenges to healthy diets for themselves and their children under five, then discussed the images in five focus groups (n=31 women) split by lower and higher socioeconomic status, analyzed with hybrid deductive-inductive thematic coding. Financial and physical barriers to accessing healthy food, time constraints and perceived poor food safety were major shared contributors to poor diets; lower-SES women also cited limited nutrition knowledge, inadequate family support and poor home food environments, while higher-SES women cited unhealthy food preferences combined with easy access to and aggressive promotion of unhealthy foods. Proposed solutions included government-level measures (job creation, nutrition education, affordable healthy food, household infrastructure investment, expanded childcare, restrictions on unhealthy-food promotion) and societal-level measures (gender equality, community-based loan schemes, and support for urban agriculture).

Mugabo Kalisa G. · Idosr Journal of Computer and Applied Sciences. · Sub-Saharan Africa

A review article addresses how, in Sub-Saharan Africa (SSA) where malaria transmission is increasing in urban and peri-urban areas due to rapid urbanization and inadequate infrastructure, urban agriculture — a vital livelihood strategy in peri-urban SSA — often intersects with poor water management practices, creating favorable breeding grounds for malaria vectors, particularly Anopheles mosquitoes. It examines the complex relationship between urban agriculture, water management and mosquito breeding in peri-urban areas, including how irrigation systems, water storage and waste management contribute to malaria transmission, and discusses the implications for malaria control. It also reviews emerging technologies such as remote sensing, GIS and mobile health platforms that can enhance mosquito surveillance and community involvement, and calls for a multi-sectoral approach spanning urban planning, vector control and community-based interventions, along with sustainable urban agricultural practices to mitigate malaria risks in SSA.

Adnan Sirage Ali · Discover Public Health · Ethiopia

A comparative cross-sectional study of 315 urban vegetable-farming households along the Akaki Rivers in Ethiopia used structured questionnaires, multivariable logistic regression, multilevel mixed-effects models and bootstrapped mediation analysis. Two-week diarrhea prevalence was 11.4% (36/315) among children and 8.7% among adults; in this cross-sectional design, which cannot establish causality, wastewater irrigation was associated with more than double the odds of diarrhea (AOR=2.10, 95% CI 1.30-3.40), frequent contact with irrigation water with 80% higher odds (AOR=1.80), and regular raw-vegetable consumption with 60% higher odds (AOR=1.60). Handwashing with soap (57% risk reduction), bathing after farm work (41% reduction) and household water treatment (45% reduction, AOR=0.55) were protective, clustering by irrigation site was modest (ICC about 6%), and hygiene practices mediated 28% of the exposure-outcome relationship.

Lloyd Chigusiwa, Asankha Pallegedara, Terrence Kairiza · Australian Journal of Agricultural and Resource Economics · Sub-Saharan Africa

Using four pooled annual cross-sectional surveys of Zimbabwean urban households from 2019 to 2023, this analysis applied an endogenous switching model with count outcome (ESMC), with propensity score matching as a secondary robustness check, to estimate the effect of urban agriculture on household dietary diversity. Large households, and those headed by women, older heads, or married couples living together, were more likely to practice urban agriculture; practicing urban agriculture increased the likelihood of greater dietary diversity, but this effect held only for the sub-population of households that did not receive support from rural relatives.

M. M. S. Maake, C. A. Mbajiorgu, D. P. Malatji, E. L. Udeh, M. J. Mamashila, Noluyolo Nogemane, N. A. Sebola, Portia Mamothaladi Moshidi, S. Mbizeni, U. V. Ogugua, P. N. Kayoka-Kabongo, France Phiri · Discover Sustainability · South Africa

A survey of 61 participants (mostly women, aged 18-92, mean age 49) in the University of South Africa (UNISA) Community Engagement project in Katlehong township, Gauteng province, South Africa, was analyzed with SPSS descriptive statistics, Chi-square and Friedman tests. Most participants relied on government social grants and seasonal employment, and over 75% were engaged in agricultural activities (72.1% vegetable cultivation, 11.5% field crops, 9.8% poultry). Education, age and gender significantly influenced participation, and training preferences ranked animal production (layers and broilers, mean rank 2.39 and 2.55) and vegetable production (mean rank 1.36) highest.

Human Sciences Research Council · Human Science Research Council SA · South Africa

A South African Human Science Research Council commentary (2026) notes that women make up the majority of urban farmers who grow food in their own backyards or lead food-security efforts within larger groups that sell or donate surplus produce, and states that the country's land reform policies require an explicitly gender-sensitive approach to support them. The abstract provides no study sample, method, or measured outcome.

Dominik Bittner, Joanne U Smith, Georgios Leontidis, Grant Campbell, Jeanne Biegel, Pete Smith, Matthias Kuhnert, Rastislav Skalský, Licida M. Maria Giuliani, Abdul Walid Walid Salik, Paul Hallett, D Burslem, Getahun Yakob, Wolde Mekuria, Euan Phimister, Amare Haileslassie, Desalegn Tegegne, sarem norouzi, Heyu Chen, Cecile Gubry-Rangin, Adnan Khan · Environmental Research Letters · Sub-Saharan Africa

A narrative review examines tools for assessing soil health and Nature-based Solutions (NbS) for soil quality in sub-Saharan Africa, drawing primarily on examples from Ethiopia but intended for farmers and advisors across the region and other developing countries. It reviews physical, biological, chemical, functional, and service-related soil tests, noting that science-based tests require expertise, equipment, and cost, while locally-derived tests are affordable and readily applicable. NbS practices are assessed against labor, cost, and crop-production factors, and the review concludes there is no single universally applicable practice — suitability depends on farmers' priorities and circumstances. It also examines predictive methods, including mechanistic soil models, AI, and hybrid approaches combining data, physics, and knowledge such as digital soil mapping.

Macharia M.W., Caproni L., Solemanegy M., Takele R., Chiulele R.M., Munisse P., Amane M., Pè M.E., Buizza R., Dell'Acqua M. · Communications Biology 8:834 · Africa

Genotypes 389 cowpea accessions (mostly landraces) from Southern Africa and identifies 36 genomic loci linked to local climate adaptation, highlighting the breeding value of farmer-conserved resources.

Alene F.D., Aga M.A. · Frontiers in Sustainable Food Systems 9:1444320 · Ethiopia

This case study in Addis Ababa's Kirkos sub-city examines urban agriculture's role in household food security, finding 48.2% of respondents food secure and about a third reporting urban agriculture helped meet their daily food needs.

Otieno J.A., Omia D.O., Amwata D.A. · Frontiers in Sustainable Food Systems · East Africa (Kenya)

Evidence-based study demonstrating how vertical gardening (particularly sack farming) in Kibera's informal settlements underpins household food security. Shows how stacking soil-filled sacks vertically enables vegetable production in space-constrained environments, serving as a solution to chronic hunger.

Shimelis G., Kim D., Yimer F., Tadesse M. · Science of The Total Environment · Africa (Ethiopia)

2025 study estimating compost production potential from municipal organic waste and human excreta in Addis Ababa, Ethiopia, with projections through 2050. Quantifies economic benefits (compost sales, fertilizer cost reduction), soil carbon sequestration, and greenhouse gas mitigation. Demonstrates feasibility of organic waste-to-compost systems for urban agriculture in African cities.

· Routledge Online · Sub-Saharan Africa

Analyzes impact of rapid urban sprawl on smallholder farmers and agricultural land in sub-Saharan Africa. Documents threats from agricultural-to-residential/commercial conversion, need for urban planning integration, and food security crisis.

· ScienceDirect · Sub-Saharan Africa

Uses agent-based modeling to analyze future scenarios of urban land-food systems in sub-Saharan Africa. Examines potential for urban agriculture growth and effectiveness of policy interventions.

· ScienceDirect · Sub-Saharan Africa

Examines legislative reform and urban planning integration needed to secure sustainable urban agriculture in sub-Saharan African cities. Notes only 3.62% of countries have implemented national urban policies with focus on urban farming integration.