Research & reports

Julia Davies, Corrie Hannah, Zack Guido, Andrew Zimmer, Laura E. McCann, Jane Battersby, Tom Evans · Food Policy · Sub-Saharan Africa

This study investigated the association between urban agriculture (UA) and household food security in smaller African cities and towns, using survey data from 2,687 low- and low-middle income households in 18 urban areas with populations of less than 200,000 across Zambia and Kenya. The analysis found that 33% of households in the sample engaged in UA, but there was limited statistical significance in the relationship between UA and household food security. Key barriers identified were settlement formality, property rights, and distance from food retailers.

Dauda Rotimi Awoniran, Omotayo Ben Olugbamila, Emmanuel Olufemi Omisore · Analele Universităţii din Oradea Seria Geografie · Sub-Saharan Africa (Lagos)

This study examined urban agriculture practices and land use changes in Lagos Metropolis, Sub-Saharan Africa, over three decades using satellite imagery and primary data from four Local Government Areas. It found that cultivated lands decreased by 28.70% between 1986 and 2000, and by 19.25% between 2000 and 2016. Urban farmlands converted to other uses by 89.48% between 1986 and 2000, and by 75.64% between 2000 and 2016, indicating that food security is under threat as land for urban farmers shrinks.

Sileshi Azagew, Hailu Worku · ENVIRONMENTAL SYSTEMS RESEARCH · Ethiopia (Addis-Ababa)

This study assessed the status, accessibility, and constraints of urban green infrastructure (UGI) in Addis Ababa, Ethiopia. It revealed that UGI land use decreased by 9.2% from 2003 to 2016, with urban agriculture declining by 11.9%. City residents lack sufficient recreational UGI, with park per capita at a very small 0.37 m² compared to Ethiopian standards of 15 m², and over 90% of the population lacking access to existing parks within walking distance. Major constraints identified include weak implementation of development plans, density, built-up area expansion, and lack of priority for UGI development.

Amsalu Woldie Yalew · Regional Economic Development Research · Ethiopia

This paper provides an overview of urban agriculture in Ethiopia, synthesizing existing evidence on its role in the overall agricultural sector, urban economy, and urban employment, based on official reports and statistical surveys. Despite scant evidence, urban agriculture shows considerable contributions. However, the review reveals existing gaps in institutional and policy support for urban agriculture.

Mengist Belay · HAL (Le Centre pour la Communication Scientifique Directe) · Ethiopia

This study, focusing on Debre Markos Town and surrounding districts in the East Gojjam Zone, Amhara Region, Ethiopia, establishes that Urban Agriculture is a multipronged tool for adaptation and mitigation to tackle climate change. It is concluded to be an effective tool to address food security challenges in cities, educate and reconnect urban and peri-urban farms and people to assure food and climate security in the cities.

Habtamu Abebe · International Journal of Environmental Sciences & Natural Resources · Ethiopia

This cross-sectional study in Arbaminch town investigated community awareness of climate change and the perceived role of urban agriculture for climate resilience using a structured questionnaire. It found that 87.2% of respondents were aware of climate change, primarily through media (70.7%), family/friends (63.4%), and public meetings/seminars (28%). A significant association was observed between respondents' age, education level, and occupation with both climate change awareness and the perception of urban agriculture's importance for climate change intervention.

Thulasizwe Mkhabela · · Southern Africa

This chapter examines trends in large and urban agricultural markets in Africa, focusing on Southern Africa and using South Africa as an example. It notes the increasing importance of urban agriculture markets due to growing urban populations, purchasing power, and changing consumer preferences. The chapter analyzes the evolution of these markets, including the rise of alternative marketing channels like farmers' markets, and discusses the linkages between rural and urban areas in food marketing, suggesting policy interventions to enhance urban agricultural markets.

Hailay Aregawi Hagos · European Journal of Business and Management · Ethiopia (Dire Dawa)

This study aimed to prioritize alternative business enterprises based on their feasibility in Dire Dawa city, Ethiopia. Primary data were collected via questionnaires from 202 judgmentally selected micro and small enterprises. Descriptive analysis showed that urban agriculture, manufacturing, service, construction, and trade sectors are the top five feasible sectors, respectively, in terms of market, technical, financial, and organizational parameters. The study concludes that entrepreneurs should undertake a preliminary feasibility study before starting a business.

Solomon Tulu Tadesse, O. Oenema, Christy van Beek, Fikre Lemessa Ocho · Nutrient Cycling in Agroecosystems · Ethiopia

This study investigated the diversity and nutrient balances of urban and peri-urban agriculture (UPA) systems in three Ethiopian cities, using data from 425 households (Addis Ababa: 175, Adama: 126, Jimma: 124). It identified six farm types, including commercial livestock (cLS) and subsistence field crop (sFC) systems. The study found that cLS systems accumulated significant nutrients (450 kg N, 85 kg P, 260 kg K ha−1 year−1) with low use efficiency (26% N and P, 15% K), while sFC systems depleted nutrients (−30 kg N, −17 kg K ha−1 year−1) with high use efficiency.

Bolanle Wahab, Ayobami Abayomi Popoola, Hangwelani Hope Magidimisha · PLANNING MALAYSIA · Nigeria (Ibadan)

A study in Ibadan, Nigeria, investigated urban farmers' access to land and local planning authorities' land allocation activities, using questionnaires with 244 urban farmers and key-informant interviews. Rapid, unplanned urban growth limited farmers' access to land, with over 30% farming on family land and 17% on open spaces like floodplains or under power lines. Barriers included land unavailability, finance, and land tenure system issues.

Jenny Smart, David Tschirley, Francis Smart, Smart, Jenny Cairns, Tschirley, David, Smart, Francis · AgEcon Search (University of Minnesota, USA) · Mozambique

Food system transformation and changes in diet quality were assessed in Mozambique amidst rapid urbanization and income growth. Rising incomes and processed food consumption were found to be associated with a worsening of negative dietary factors. Furthermore, urbanization, controlling for income, was more strongly associated with a worsening of negative factors than an improvement in positive dietary factors. However, owning one's own farm had a positive and significant effect on nutrition for urban households, primarily driven by reduced purchases of unhealthy foods.

Joyce-Ann Syhre, Meike Brückner · · Kenya (Nairobi)

This chapter illustrates agricultural alternatives in Nairobi, Kenya, emerging through practiced urban agriculture. These alternatives enable socio-ecological spaces of food sovereignty, biodiversity, and agency. The chapter discusses the socio-cultural values of farming and food, the role of gender in Nairobi's urban agricultural landscape, and the diverse perceptions of human-nature relations among female farmers.

Désiré Bisimwa Byamungu, Affermi Kufinu Dia Matondo, Mireille Kimanda Asha · · Africa

A spatial analysis and socio-economic survey were conducted on land occupation, land conflicts, and their management in the Funa Valley in Kinshasa. The findings revealed a strong evolution of anthropogenic presence in the valley and identified multiple land conflicts, including illegal sales of parcels by customary chiefs and illegal occupation of agricultural land by non-market gardeners. The management of these conflicts is often referred to the district chief and the justice ministry.

Chihambakwe, Michelle, Mafongoya, Paramu, L., Jiri, Obert · University of Zimbabwe Institutional Repository (University of Zimbabwe) · Africa

This review examines the application of food sovereignty principles in urban and peri-urban agriculture in Zimbabwe. It notes that despite urban households integrating these practices into their livelihoods, institutional arrangements governing them remain ambivalent. The review concludes that the failure to involve all stakeholders undermines urban and peri-urban agriculture, leading to increased food insecurity and unsustainable practices.

Ibrahim Aliyu Kankara, Hani Farouk · Annals of Geographical Studies · Nigeria (Kano)

This research evaluated potable water distribution problems in Kano municipal, Nigeria. Using data from 384 questionnaires and investigations of water supply institutions, the study concluded that water supply in Kano municipal does not meet demand due to problems such as insufficient water treatment plants, power failure, and funding shortages.

Shailesh Deshpande, Priyanka Verma, Piyush Yadav, Jay Gubbi, P Balamurali · Asian Journal of Geoinformatics · South Africa (Johannesburg)

Land Use Land Cover (LULC) changes in Johannesburg City, South Africa, were analyzed using Landsat imagery from 2000 to 2016. The analysis revealed that impervious surface increased by 57.03% during this period, leading to a 47.8% loss of urban vegetation (grass, tree cover) and urban agricultural land. Additionally, soil and water loss amounted to 16.75%.

Ophélie Robineau, Christophe‐Toussaint Soulard · Natures Sciences Sociétés · Africa

This article emphasizes the utility of the agri-urban system concept for analyzing expanding urban agriculture and the complex relationships between cities and agriculture, moving beyond traditional disciplinary boundaries. Based on a case study in Bobo-Dioulasso, West Africa, it aims to develop a framework for understanding these relationships at the city and regional scale. It distinguishes three groups of city-agriculture interactions: spatio-historical, interactions between the current urban system and agriculture, and interactions within the urban agrarian system, seeking to identify factors influencing the diversity and future of urban agriculture.

Dominique Massé, Moussa N’Diénor, Edmond Hien, Tovonarivo Rafolisy, Yacine Badiane Ndour, Alfonse Bilgo, Serge Houot, Christine Aubry · IRD Éditions eBooks · Sub-Saharan Africa

This chapter reviews research since 2006 on composting urban waste and using municipal landfill screenings in Sub-Saharan Africa. In Ouagadougou, urban waste compost significantly increased sorghum yields (2 to 5 times higher than controls) over two years, with phosphorus content being crucial when concentrated at plant level, and mineralization rate determining yield when spread. In Madagascar, soil from the Andralanitra landfill showed value as an amendment or fertilizer for tomato cultivation, though application principles and safety need definition. However, municipal landfill screenings from Dakar did not achieve yields comparable to horse manure when tested on tomato crops.

Olalekan John Taiwo · · Nigeria (Lagos)

A study in Lagos State, Nigeria, analyzed the characteristics of urban agriculture and the influence of land use diversity using 300 questionnaires and personal interviews. The research noted the rapid disappearance of urban agricultural sites within built-up areas, framing it within the concept of "survival of the fittest." Results indicated that land use characteristics where urban agriculture is located moderate its size, rental cost, profit, and accessibility to road networks, while having little to no influence on its distance from markets and water sources.

Gudrun B. Keding, Céline Termote, Katja Kehlenbeck · · Kenya

Trees offer multiple benefits to urban agriculture, providing both production and service functions, and their integration into urban gardens enhances efficient resource use. In Kenya, traditional leafy vegetables were often replaced by introduced varieties, though producing perishable goods close to urban markets offers advantages. However, commercial production may lead to the dominance of exotic species and loss of indigenous ones. Urban gardens supported abundant and diverse wild flora, comparable to unmanaged plots. Rapidly growing urban populations seek food, income improvement, and cultural retention.

Ophélie Robineau, Christophe‐Toussaint Soulard · Natures Sciences Sociétés · Africa

This article highlights the agri-urban system concept for understanding the complexity of city-agriculture relationships, using a West African city as a case study. It aims to develop a framework for analyzing these relationships at the territorial scale of the city and its region. Three groups of city-agriculture interactions are distinguished: spatio-historical interactions, interactions between the current urban system and agriculture, and interactions within the urban agrarian system.

C.O. Edeoghon, A.A. Idowu · Ethiopian Journal of Environmental Studies and Management · Nigeria (Lagos State)

This study investigated the role of agricultural enterprises in the food security status of urban farmers in Ikorodu metropolis, Lagos State, Nigeria. A survey of 150 urban farmers, selected using a multistage technique and structured questionnaires, revealed an average food security score of 2.73, indicating food security without hunger. The relationship between food security and agricultural enterprises suggested that fruit, vegetable, and fisheries enterprises tend to move urban farmers towards food secure groups.

Gareth Haysom, Jonathan Crush, Mary Caesar · Hungry Cities Partnership (Report No. 3), African Centre for Cities, University of Cape Town · South Africa

Hungry Cities Partnership Report No. 3 examines Cape Town's demographics, economy, informal sector, urban agriculture and food security. A 2013 national survey found 26% of South Africans regularly experienced hunger and a further 28% were at risk, with urban informal areas showing especially high rates (36% hunger, 32% at risk). On urban agriculture, the report notes the City supports 201 community gardens with 1,849 beneficiaries, yet fewer than 5% of households in low-income study areas grow their own food.

Albert Ayorinde Abegunde, Daniel Oluwasola Olaleye · · Nigeria (Lagos)

This study identified vacant land used for urban agriculture in Lagos, Nigeria, and assessed the socio-economic characteristics of 78 farmers in the Ojo Local Government Area. It examined the contributions of urban agriculture to community economic development. Findings showed that most farmers were married males aged 21-50, with about half lacking formal education and earning N6,000-8,999 per month.

Joshua Oluwole Olowoyo, Gladness Nteboheng Lion · South African Journal of Science · South Africa

This review reports on the concentrations of trace metals in crops, including leafy vegetables, harvested from various urban areas. It highlights the presence of trace metals in leafy vegetables and discusses various pathways of uptake, possible health risks associated with urban farming, and morphological and physiological impacts of trace metals in leafy vegetables.