Research & reports

Gemechu Abdissa, Abebe Ayalew, Anna Dunay, Csaba Bálint Illés · Economies · Ethiopia

This study investigated the determinants of sustainable growth for SMEs, including those in urban agriculture, in Ethiopia using primary data from 194 employees. Findings indicate that political instability, corruption, and COVID-19 are significantly harming the growth and long-term sustainability of Ethiopian SMEs.

Axel Prestes Dürrnagel, Matias Siueia Júnior, Simone Prestes Dürrnagel · Boletim GeoÁfrica · Mozambique

In Maputo, Mozambique's capital, urban agriculture is at a critical point, with accelerated urban growth and climate change impacts increasingly compromising agricultural spaces. A qualitative case study focusing on farmer associations in the urban district of KaMavota indicated that horizontal relationships among farmers enable information sharing and social capital creation. Conversely, vertical relationships between farmers and the government primarily promote knowledge exchange and competencies related to agricultural extension and land rights allocation.

Adrino Mazenda, Nonkosazana Molepo, Tinashe Mushayanyama, Saul Ngarava · British Food Journal · South Africa (Gauteng)

This quantitative cross-section study estimated the determinants of household food insecurity in the Gauteng City-Region, South Africa, using binary logistic regression on 13,616 observations from the Gauteng City-Region Observatory Quality of Life 2020/2021 data. The main findings highlight unemployment, health status, education, household size, indigency, and income as the primary determinants of food insecurity. Further studies are needed for an in-depth assessment of household coping mechanisms, the influence of government social grants, and access to credit.

Enagnon Arsène Euloge YAOVI, Martial WOROU, Bola A. MALOMON, Sylvain A. VISSOH · International Journal of Progressive Sciences and Technologies · Africa

This research in the Arrondissement of Zinvié, Africa, investigated agricultural land governance through surveys of 109 people and field observations. Findings indicate rapid urbanization is causing anarchic land occupation and uncontrolled consumption of agricultural space, with renting being the dominant land access mode (50%). From 2010 to 2020, cultivable land decreased by 517.69 hectares due to urbanization, highlighting significant governance challenges.

Doctor S. Nkosi, Thembani Moyo, Innocent Musonda · Land · South Africa (Johannesburg)

This study developed a GIS-based planning support system to identify, quantify, and visualize an index for urban agricultural land in marginalized areas. Using Greater Orange Farm, a marginalized area in the City of Johannesburg, South Africa, as a case study, indigenous knowledge systems were incorporated through the Charrette visioning process for formulating criteria, weights, and rulesets. The results revealed spatial sites ranked by an index where sustainable investment in urban agriculture infrastructure and supporting programs should be targeted.

Abdelkarim Hamrita, Daniel Ferrer Jiménez, Hichem Rejeb · Frontiers in Sustainable Cities · Africa

A 2022 study analyzed the peri-urban agrifood system of the Sousse urban agglomeration, one of the most important in Tunisia, from a landscape perspective. It finds that clearly deficient regulations combined with uncontrolled urban development, together with intersecting political, environmental and economic factors, are threatening the survival of a traditional, largely family-based agricultural model built on mixed or polyculture production with predominant olive groves — a model the study describes as vital to the economic maintenance of many families and to food security. Using the Landscape Character Assessment methodology, the study proposes a landscape-project tool to strengthen the resilience and sustainability of peri-urban agriculture and prevent the loss of landscape heritage. It also points to the importance of integrating green infrastructure into land-use planning and to the need to promote Agricultural Parks, a protected status already recognized in Spain and other countries, putting forward specific proposals for the Sousse peri-urban agricultural landscape while insisting on the need to reform current forms of governance.

Abdul‐Lateef Balogun, Naheem Adebisi, Ismaila Rimi Abubakar, Umar Lawal Dano, Abdulwaheed Tella · Journal of Integrative Environmental Sciences · Sub-Saharan Africa

Against a backdrop where sub-Saharan Africa's agriculture sector -- about 23% of GDP and employing over 60% of the population -- faces serious threats from rural-to-urban migration and climate change, this desk-research study examined the potential for digitalization to enable sustainable urban farming under climate constraints. It found that most existing digitalization research is based on data from Asia, Europe, North America, and Oceania, with minimal documentation of applications and prospects specific to Africa, and drew on challenges seen in successful implementations in the Global North to propose pathways toward localized digitalization approaches for the region.

Sandra Boatemaa Kushitor, Shawn Alimohammadi, Paul Currie · PLOS Sustainability and Transformation · South Africa

An ethnographic study using in-depth interviews and participant observation, conducted April to November 2020 with thematic analysis, examined the role of the informal food sector in food flows in Cape Town, South Africa, during the COVID-19 lockdown. The informal food sector has historically been subject to exclusionary urban policies, and lockdown regulations caused food flows through the sector to cease, resulting in job loss and increased food insecurity. The sector subsequently reshaped food flows through urban agriculture, food aid programmes and community change, though it can also hinder urban modernisation. The study concludes regulatory frameworks need to be more inclusive of the sector.

Chitakira, M., Ngcobo, N. · Frontiers in Sustainable Food Systems · South Africa

A mixed-methods study (n=36) of peri-urban smallholders in the Tshwane metro (Gauteng), South Africa, documenting a knowledge-practice gap—high experiential awareness of climate change but low recognition of 'Climate Smart Agriculture' as a framework—and calling for up-scaling its uptake.

Shabu Terwase · International Journal of African and Asian Studies · Nigeria

This study assessed the impact of urbanization on agricultural land in Makurdi Local Government Area, Benue State, Nigeria, using population figures and land use data from 1997, 2007, and 2017. GIS analysis revealed an increase in settlement and a decrease in agricultural land, with 99.51 hectares of agricultural land converted to settlement between 1997 and 2017. Urbanization significantly decreased agricultural land, activities, and farm size in the study area.

Akeem Ola · Town and Regional Planning · Nigeria (Ilorin)

This study examined the effects of urban planning practices on urban agriculture (UA) in Ilorin, Nigeria, and its contribution to the city's food shock resilience. Findings revealed that UA contributed 16.9% to meat/fish/egg requirements, 4.5% to yam/cassava/potato, 0.58% to vegetables, 0.6% to fruits, and 0.5% to grain requirements. However, the Respondents’ Agreement Index (RAI) indicated that poor access to finance (0.93), limited land area (0.75), and lack of tenure security (0.44) were dominant variables influencing UA's poor contribution to food security.

Mekonnen Amberber Degefu, Mekuria Argaw, Gudina Legese Feyisa, Sileshi Degefa · ENVIRONMENTAL SYSTEMS RESEARCH · Ethiopia

This study characterized and compared the Spatio-temporal responses of ecological land to urban landscape dynamics in Bahir Dar, Addis Ababa, Adama, and Hawassa cities in Ethiopia for the last three decades (1990–2020). Three sets of Landsat satellite images, field observations, and urban land indexes were used to produce landscape maps and geo-spatial data analysis. Results showed that in all cities, ecological land had changed intensely regarding its quantity and spatial pattern, and the substantial expansion of built-up ecosystems was manifested at the cost of ecological land.

Michael Rudolph, Madimetja Antony Mello, Evans Muchesa · Journal of food security · South Africa (Johannesburg)

This study aimed to develop a sustainable social entrepreneurship model for urban farming initiatives in Johannesburg. Through a literature review and qualitative interviews with experts, findings highlighted several important challenges that limited urban smallholder farmers' ability to ensure the financial viability and sustainability of their farming initiatives. These challenges included limited accessibility to farming land, markets, funding, and knowledge regarding setting up and managing small agri-businesses.

Nibret Sefiw Adugnaw · Open access jounrals · Ethiopia

This study examines the impact of urban expansion on peri-urban farming communities in Lalibela town, Amhara Regional State, Ethiopia.

Nicole Paganini, Silke Stöber · The Journal of Agricultural Education and Extension · South Africa (Cape Town)

This long-term study in Cape Town, South Africa, developed and employed a co-research approach with urban farmers, using mixed methods including focus groups, farming diaries, and surveys. Participants perceived the research process itself as more important than the results, as they developed agency for change. The mutually developed results were used by co-researchers to establish a representative body advocating for small-scale farmers' needs.

Absai Chakaipa, Vitalis Basera, Phamella Dube · Journal of Social Humanity and Education · Africa

Using survey data from 115 household farmers collected in December 2020 across urban and peri-urban Mutare City, Zimbabwe, including the Weirmouth Park and Fern Valley areas, this study applied generalized log-linear modelling to model associations between multiple response categorical variables (MRCV) on urban agriculture. Simultaneous Pairwise Marginal Independence tests revealed associations, and log-linear tests found a strong positive association between field agricultural activities and herbicide use, and a strong negative association between municipal vacant places and field agricultural activities; the study could not model associations among three or more MRCVs because the required computations exceeded 2GB of memory.

Samuel Ziem Bonye, Gordon Yenglier Yiridomoh, Emmanuel Kanchebe Derbile · International Journal of Urban Sustainable Development · Africa

A mixed-methods study in Wa Municipality, Ghana, examined how peri-urban agricultural land use change affected farmers' food security, surveying 235 smallholder farmers with questionnaires, interviews and GIS-based historical data. Over the past three decades, peri-urban agricultural land was drastically lost to residential and infrastructural development, and this land use change resulted in food insecurity, with most smallholder farmers unable to meet their food needs over the past decade.

Bereket Geberselassie Assa · Civil and environmental research · Ethiopia

A study of Wolayta Zone Sodo Zuria Woreda in southern Ethiopia used GIS and remote sensing to analyze how human intervention affects the agricultural system. It found that urbanization driven by demand for residential land, a 2.66% increase over nine years, has produced food insecurity and raised crop production costs in local markets. Forestland declined at a rate of 0.295% per year, of which 0.09% was converted to residential land. Land use classification from 30 m Landsat 7 imagery was evaluated using the Analytic Hierarchy Process with a consistency ratio of 0.016%, and the study notes that the impact of deforestation on urban agriculture and livelihoods in this part of southern Ethiopia's highlands had not previously been scientifically studied.

Joshua Jonah Kunda, Ahmed Abubakar Jajere, E. A. Otabe, Chindo Musa Muhammed, Umar Muhammed Bibi, Yusuf Maina-Bukar · Environment and Pollution · Nigeria

This study in Makurdi, Benue State, Nigeria, used geospatial technology to assess agricultural land vulnerability to flooding, deriving factor weights (rainfall 25%, elevation 22%, slope 20%, drainage density 13%, land use/cover 12%, soil type 8%) through pairwise Analytical Hierarchy Process comparison (consistency ratio 0.078) and a weighted overlay model in ArcGIS 10.4. Farmland along the floodplains of the River Benue fell within the very highly vulnerable category, with elements at risk totaling 537.6 units of farmland (66.1%), 40.5 units of irrigation land (5.0%), and 125.8 units of built-up land (15.5%).

Mulesa T.H. · The Journal of World Intellectual Property · Ethiopia

A historical institutional analysis of the governance of access to plant genetic resources in Ethiopia, examining national policy evolution in relation to the ITPGRFA, benefit-sharing, and farmers' rights.

Elizelle Juaneé Cilliers, Louis Lategan, Sarel S. Cilliers, Karla Stander · Frontiers in Sustainable Cities · South Africa

This paper investigates urban agriculture (UA) in South Africa as a citizen-led urban greening strategy, reviewing case studies and the national policy framework. Key limitations include many UA initiatives not being self-sustaining or fully citizen-driven, a cultural stigma, limited national support due to the absence of a dedicated UA policy, and South African spatial planners' limited knowledge of UA. These issues hinder the broader implementation of UA.

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.

Kareem Buyana, Shuaib Lwasa, Denis Tugume, Paul Isolo Mukwaya, Jacqueline Walubwa, Samuel Owuor, Peter Kasaija, Hakimu Sseviiri, Gloria Nsangi, Disan Byarugaba · Environmental Research Letters · Africa

This qualitative systematic review examined academic and policy evidence to identify emerging interventions for enhancing climate change resilience in African cities. At the neighborhood scale, resilience often stems from urban agriculture and forestry, alternative energy from wastes, and adjustments in irrigation schedules. At the city scale, planning targets buildings, mobility, and energy service delivery. The review found that evidence on comparisons across regions mainly covers East, West, and South African cities, with less on Northern and Central Africa, and primarily focuses on capital cities rather than secondary cities and towns.

Harry Kasumba, M. Mashologu, Patrick W Bwowe · · South Africa

An investigation into the sustainability of school food gardens in Chris Hani District, South Africa, used a mixed-methods approach with a purposive sample of six schools. Findings revealed significant bottlenecks hindering sustainability, specifically inadequate funding and a lack of proper planning for school food gardening activities.

I.O. Amao · IntechOpen eBooks · Sub-Saharan Africa

This chapter conducted an empirical review of urban horticulture in cities across Sub-Saharan Africa, aiming to specify its benefits in the region. The review concluded that governments in these countries require political will to realize the identified advantages of urban horticulture, which include food and nutrition security, healthy environments, and sustainable livelihoods. It recommends raising awareness among stakeholders like politicians, policymakers, and urban households to integrate urban horticulture into land use planning.