Research & reports
Peer-reviewed research and reports on community urban agriculture, food education, composting, welfare and more.
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Critical findings
193 results(1 / 8)
Toxic heavy metals distribution in urban soils of Africa: a systematic review
2026Nontokozo Pertunia Mkhonza, Sandisiwe Zondo, Samukelisiwe Vilakazi · Environmental Monitoring and Assessment · Africa
A systematic review synthesising 38 peer-reviewed studies (2010–2024) on heavy metals in African urban soils. Weighted mean concentrations of lead, cadmium and chromium exceeded FAO permissible limits in many countries, and industrial activity plus traffic emissions accounted for over half of the identified contamination sources. The review also documents strong geographic bias — Nigeria and Ghana are well studied while Egypt and Ethiopia are barely covered — and a shortage of measurements of bioavailable metal fractions, so the actual dietary risk from crops grown in these cities cannot be determined from this evidence base.
HealthPolicyBarriers to urban agriculture in Africa: a bibliometric and content co-occurrence analysis of the literature
2026hawamkwela@yahoo.com MKWELA, Emiliana Assenga · Cogent Food & Agriculture · Africa
A bibliometric analysis of 504 journal publications from January 2020 to December 2024 and a content co-occurrence analysis were conducted to understand barriers to urban agriculture in Africa. Four research clusters emerged, including 'policy neglect or opposition in urban agriculture'. Content analysis revealed that vegetable production in urban agriculture is negatively affected by wastewater use, heavy metal contaminated soil, limited access to productive factors, and policy neglect or opposition.
Governance failurePolicyCommunityUrban Agriculture Policy and Household Food Security in Jos Metropolis, Nigeria
2026N. I. Odeh, A. T. OGAH, O. C. Odeh · Journal of African Resilience and Advancement Research · Nigeria
This study in Jos Metropolis, Nigeria, examined the urban agriculture (UA) policy framework and household food security using mixed methods, including interviews and a household survey. Findings revealed the absence of a dedicated UA policy, with UA regulated indirectly by general agricultural and land-use policies. Only 20.7% of households were food secure, while 79.3% experienced some level of food insecurity.
Governance failurePolicyFood sovereignty & justiceHealthEconomicsIntersectando a agricultura urbana, o meio ambiente e a educação:
2026Rogers Hansine, Christine Bonnin, Inês Raimundo, Madal Artur, Cândida Bila · Revista Tamoios · Mozambique
The SYNERGI project, implemented from March 2023 to September 2025, aimed to promote urban community involvement in co-creating Socially Inclusive Edible Urban Green Infrastructure (IVUCs) in Maputo and Xai-Xai, Mozambique. The project successfully established IVUCs in six selected schools, increasing food production and educational opportunities. The project highlights the need for better institutional frameworks to support green infrastructure development.
Governance failureCommunityFood educationBiodiversityPolicyHeterogeneous policy preferences of urban poultry farmers in Tigray, Ethiopia: a best–worst scaling approach
2026Alem Mezgebo, Muuz Hadush, Kidanemariam Gebrehiwot · Journal of Agribusiness in Developing and Emerging Economies · Ethiopia
This study investigated policy preferences among 400 urban poultry farmers in Tigray, Ethiopia, using a Best–Worst Scaling approach. Farmers showed strongest preferences for policies on feed quality and safety, digital and financial inclusion, and market and infrastructure access. Significant heterogeneity was observed, with Class 1 farmers being older, more experienced, and subsistence-oriented, while Class 2 farmers were more diversified. The study's limitations include its focus on Tigray urban poultry farmers and cross-sectional data, not assessing long-term impacts or cost-effectiveness.
PolicyEconomicsConstraints to Urban Agriculture for Sustainable Food Production in Port-Harcourt Metropolis, Rivers State
2026Okorogba, Victory A., Amadi, N.S. · Zenodo (CERN European Organization for Nuclear Research) · Nigeria (Port Harcourt)
A descriptive survey in Port Harcourt Metropolis, Rivers State, Nigeria, identified constraints to urban agriculture for sustainable food production. The study, involving 46 female and 30 male urban farmers, found that poor infrastructural resources, poor environmental conditions, and limited intellectual skills of urban farmers hinder the achievement of sustainable urban agriculture.
Governance failureFood sovereignty & justicePolicyEconomicsGeospatial Dynamics of Urban Irrigation Agricultural Land Use for Sustainable Income Generation on the Jos Plateau
2026Dr. Emmanuel Omomoh, Sunday Nannim, Dr. Rogers Rengje. Danlami Gujahar, Moses Omitunde Omirinde, Gwamzhi Ponsah Emmanuel · International Journal of Latest Technology in Engineering Management & Applied Science · Nigeria (Jos)
A study analyzed urban irrigation agricultural land use changes in Jos South Metropolis, Nigeria, over a ten-year period (2014–2024) using geospatial techniques and fieldwork. Market garden area declined by 5.84%, while settlements expanded by 34.76%. Key constraints to sustainable urban agriculture were identified, including land tenure insecurity (63% of dry-season farmers were landless), limited access to irrigation water, pest and disease pressure, inadequate fertilizer supply, and increasing competition for land from urban development.
Governance failureEconomicsFood sovereignty & justiceClimate changePolicyPublic perceptions on the role of urban green space development and management in Gondar City, Amhara Region, Northwest Ethiopia
2026Getaneh Bizuayehu, Kassahun Gashu, Belete Debebe · Sustainable Futures · Ethiopia
This study investigated public perception of the economic, social, and environmental roles of urban green space (UGS) development and management in Gondar City, Ethiopia, using household surveys and semi-structured questionnaires. Most participants strongly agreed that UGS provides raw materials (54.5%), creates employment (54.5%), attracts businesses (53.5%), aids food production (51.8%), and increases government revenues (51.7%). Socially, UGS was strongly agreed to improve healthy lifestyles (64.3%) and promote mental health (60.1%). Environmentally, strong agreement was found for UGS reducing climate change impacts (89%), improving urban forests (78%), and mitigating urban heat island effects (75.3%). Chi-square tests showed most demographic, socio-economic, and biophysical factors were not significantly associated with these perceived roles.
EconomicsCommunityPolicyNurturing Resilient Urban Animal Agriculture for Food Security in Sub-Saharan Africa: A Triad Approach to Social, Economic, and Environmental Sustainability
2026Never Assan, Justice Sibanda, Betty Mukuwapasi, Reason Rumbidzai Charachimwe, Edmore Masama · Journal of Frontiers in Multidisciplinary Research · Sub-Saharan Africa
Urban animal agriculture (UAA) in Sub-Saharan Africa is presented as a solution for food security but faces challenges including gender inequality, climate change, inadequate legislation, and environmental degradation. While UAA aims to enhance household food security and alleviate poverty, it also encounters environmental issues such as resource competition, water resource strain, improper manure management, greenhouse gas emissions, noise, and nuisance. Sustainable UAA requires semi-intensive silvopastoral and mixed crop and livestock systems to reduce environmental impact and enhance local food production.
Environmental trade-offsFood sovereignty & justiceWelfareClimate changePolicyThe impact of urban vegetable production on household poverty reduction during the Tigray War (2020–2022): Evidence from Mekelle City, Ethiopia
2026Azeb Gebreegziabher Zeru, Aregawi Beyene Bsrat, Zenebe Abraha Kahsay, Tsahaynesh Hagos, Yahansu Girmay, Guesh Endrias, Gebremedhin Mamoy Hadush, Abrhaley Redae, Abrhaley Gebrehiwot, Wolie Gebremicheal · Urban Agriculture & Regional Food Systems · Ethiopia (Mekelle)
In Mekelle City, Ethiopia, 264 households adopted urban vegetable production as a survival strategy during the Tigray War (2020–2022). Household survey data analyzed using propensity score matching showed that participation in urban vegetable production was strongly associated with poverty reduction. Vegetable producers exhibited relatively low poverty incidence, depth, and severity, suggesting that urban vegetables served as a critical resilience mechanism for households.
WelfareEconomicsFood sovereignty & justicePolicyWomen in urban and peri-agriculture: sustaining livelihoods in the Cape metropolitan area
2026Human 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.
CommunityWelfareEconomicsPolicyPeri-urban agricultureIntegrating Spatial Data and Indigenous Knowledge Systems for Resilient Urban Planning: Lessons from South Africa
2026Thembani 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.
Food sovereignty & justiceEconomicsPolicyClimate changeAdaptive livelihood strategies of evicted peri-urban farmers in the newly metropolitan city of Ethiopia
2026Abie 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.
Equity & displacementPeri-urban agricultureUrban–rural linkageEconomicsPolicyIntegrating Biophilic Design and Productive Green Infrastructure as Urban Renewal Strategy for Mixed Use Development in Lagos Island
2026F. 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.
CommunityBiodiversityPolicyPeri-urban agricultureThe various face(t)s of urban agriculture: evidence from secondary towns in Ethiopia
2026Amare 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.
Governance failureCommunityPeri-urban agriculturePolicyEconomicsExploring compost production potential and its economic benefits and greenhouse gas mitigation in Addis Ababa, Ethiopia
2025Shimelis 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.
CompostOrganic cycleFood educationPolicySprawling cities, shrinking farmland: urban expansion and smallholder farmers in Sub-Saharan Africa
2025· 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.
PolicyFuture scenarios for urban agriculture and food security in sub-Saharan Africa: Modelling the urban land-food system in an agent-based approach
2025· 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.
PolicySecuring the future of urban agriculture: Legislative reform and planning for sustainability in sub-Saharan African cities
2025· 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.
PolicyBeyond the blueprint: Rethinking governance and sustainability in Cape Town's community gardens
2025Kanosvamhira T. · Journal of Urban Affairs · Cape Town, South Africa
While external support from nonprofits and government agencies matters for garden survival, poorly managed support can undermine local ownership and autonomy. The case study shows how governance failures threaten the sustainability of community gardens.
PolicyCommunityDeterminants of urban agriculture and green infrastructure integration in Bahir Dar City, Northwest Ethiopia
2025Ermias Debie, Demsew Mengistie · Discover Sustainability · Ethiopia
This study investigated the determinants of Urban Agriculture (UA) and Green Infrastructure (GI) integration in Bahir Dar City, Northwest Ethiopia. Data were collected through surveys and analyzed using binary and ordinal logistic regression models. Findings revealed that a lack of awareness and lower education levels, such as no formal and primary education, significantly hinder the integration of UA and GI practices. Conversely, larger residential spaces and household sizes positively influence integration levels, with each additional household member increasing the score by 0.236 units for consumption needs, and each unit increase in residential site size raising the score by 0.004 units due to space availability.
CommunityPolicyFood educationEffect of Land Grabbing, Forced Evictions and Inadequate Compensation on Economic Capital and Food Security of the Displaced Pre-Urban Farmers in Addis Ababa, Ethiopia
2025Kejela 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.
Equity & displacementFood sovereignty & justicePeri-urban agricultureEconomicsPolicyInformal Land Delivery System and Access to Land for Urban Agriculture in Ilorin, Nigeria
2025Ola Akeem Bayonle, Raheem Wasiu Mayowa · Bioresources and Environment · Nigeria
This study in Ilorin, Nigeria, examined the role of informal land agents in supporting urban agriculture using a cross-sectional survey of 73 informal agents and 303 urban farmers. It found that most agents were male, aged 20-39, and land was primarily acquired through direct contact with owners (72.6%), with location being the main price factor (78.2%). A strong positive correlation was identified between informal land delivery systems and access to agricultural land, indicating these agents bridge gaps in the formal system.
PolicyEconomicsCommunityUrban expansion and compensation vis-a-vis livelihood coping strategies of displaced farmers surrounding medium size towns in north west Ethiopia
2025Meznanat 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.
Governance failurePeri-urban agriculturePolicyEconomicsGrowing together: unveiling the potential of school-based community gardens to foster well-being, empowerment, and sustainability
2025Tinashe P. Kanosvamhira · Urban Transformations · South Africa (Cape Town)
This qualitative study investigated 13 school-based community gardens in low-income townships on the Cape Flats of Cape Town, South Africa, using semi-structured interviews. It found that while these gardens can enhance food security, nutrition, and community development, most urban community gardens in South Africa face significant challenges related to land tenure rights, often requiring negotiation for school land use. The research highlights both the advantages and the challenges of utilizing school land for community gardens.
Governance failureCommunityFood educationHealthPolicy