Research & reports

Bolanle, Oluwafisayo Wahab, Abiodun Abiodun · Ghana Journal of Geography · Nigeria

This study examined peri-urban agriculture (PUA) in Ibadan, Nigeria, by surveying 230 randomly selected farmers across six local government areas. Findings showed farmers benefited from opportunities like abundant land (47.4%) and good soil (32.2%), but faced major challenges including inadequate finance (43%), farm encroachment (15.7%), and erosion/flooding (13.5%). The study concluded that PUA opportunities in Ibadan can strengthen food security, recommending government support for finance and development control.

Liku Workalemahu Habtemariam, KetemaAbebe Tufa, Lise Byskov Herslund, Patience Mguni · Progress in Development Studies · Ethiopia (Addis Ababa)

This article explores water resource management in Addis Ababa's condominium housing and urban agriculture cooperatives to identify challenges and potentials for water-resilient livelihoods. Findings indicate both communities are heavily affected by water stress, with farming communities being vulnerable due to natural asset dependence but more flexible than condominium residents facing malfunctioning infrastructure. Potential for resilience exists if policy frameworks integrate local situations with landscape-based stormwater management.

Ubokudom E. Okon, Kesit Nkeme, Ubon Asuquo Essien, Chukwuemeka Chiebonam Onyia · American Journal of Business and Management · Nigeria

This study assessed the economic vulnerability of 289 urban farm households in three states of South-south Nigeria using vulnerability index analysis. The results indicated a high level of economic vulnerability among urban farmers, primarily caused by lack of access to formal credit, lack of land, low asset value, and low farm income. Households entirely dependent on farm income were 66% more likely to be vulnerable to economic shocks.

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.

Nanna Jordt Jørgensen · DOAJ (DOAJ: Directory of Open Access Journals) · South Africa

Drawing on a case from the Amanzi for Food project in South Africa's Eastern Cape and earlier material on community gardens in Port Elizabeth, this think piece reflects on how people whose livelihoods depend on land and animals experience and cope with the uncertainty generated by climate change. It focuses on intergenerational interaction and learning in food gardening, arguing that these processes shape responses to uncertainty oriented toward creative solutions rather than debilitation.

Courtney M. Gallaher · CABI eBooks · Kenya

This chapter considers the effects of landscape greening, including small urban farms and sack gardening, on residents' perceptions of the environment in Kenya's Kibera slum over the last 10 years. It examines what environmental issues residents perceive as most serious, who they believe is responsible for addressing these problems, and to what extent they believe sack gardening is changing Kibera's physical and social environment.

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%.

Volker Häring, Delphine Manka’abusi, Edmund Kyei Akoto-Danso, Steffen Werner, Kofi Atiah, Christoph Steiner, Désiré Jean‐Pascal Lompo, S.G.K. Adiku, Andreas Buerkert, Bernd Marschner · Scientific Reports · Sub-Saharan Africa

This 2-year study in Tamale (Ghana) and Ouagadougou (Burkina Faso) investigated the effects of biochar, wastewater irrigation, and fertilization on sandy, nutrient-depleted soils in urban vegetable production. Biochar addition (2 kg m⁻²) initially doubled soil organic carbon (SOC) stocks, but 35% SOC losses occurred afterward. Both biochar types had no effect on soil pH, phosphorus availability, or cation exchange capacity, though rice husk biochar retained nitrogen. The study found that the effects of biochar and waste water were less pronounced than reported elsewhere.

Okoro Enyinnaya Okoro, Iwueke Nyainbau Tarinabo, Agunanna Henry Ibe, Ndulaka Chigozie Martin · International Journal of Environmental Chemistry · Nigeria (Aba)

This study investigated the economic and environmental contributions of urban farming in Aba, Abia State, Nigeria, using Landsat 8 satellite imagery and data from 100 urban farmers. Most respondents were self-employed females aged 41-50, primarily engaged in cassava and maize farming to supplement income. The findings indicate a significant environmental contribution of urban farming in Aba.

Muhammad Bello Ibrahim, Nobaya Ahmad, Asnarul Khadi Abu Samah, M.S.M. Redzuan · Universiti Putra Malaysia Institutional Repository (Universiti Putra Malaysia) · Nigeria

A quantitative study surveyed 217 peri-urban agricultural farmers in Kwadon, Gombe, NE Nigeria, from a population of 500, to assess their efforts in watershed sustainability and usage. Descriptive statistics indicated that the majority of these farmers are moderately sustaining the Kwadon watershed through their farming practices. The study focused on water sources, water sharing, and watershed management.

Elizabeth Vibert · Journal of Contemporary African Studies · South Africa

This article examines the Hleketani Community Garden in Limpopo Province, South Africa, highlighting the successes of women farmers in reducing poverty and improving health outcomes. Despite these benefits, the research identifies significant structural barriers, including lack of access to resources, unfavorable policy frameworks for small-scale agriculture, and worsening climate change, that hinder small-scale farmers, particularly women.

Francesco Sottile, Fiorito Daniela, Nadia Tecco, Vincenzo Girgenti, Cristiana Peano · Sustainability · Kenya

This study aimed to propose an interpretive framework, the "Sustainable Agri-Food Evaluation Methodology-Garden" (SAEMETH-G), to quantitatively guide the sustainability evaluation of school gardens. As a case study, the methodology was applied to 15 school gardens located in three regions of Kenya. The application of SAEMETH-G as an assessment tool demonstrated that sustainability evaluations of school gardens can be carried out through a participatory and interdisciplinary approach.

Molly R Loftus · Scholarship @ Claremont (The Claremont Colleges) · Africa

This thesis comparatively analyzes environmental values in Ghana's and Senegal's coastal regions and their implications for the environment. It assesses the countries' approaches to urban farming, mining, fishing, and waste management to understand environmental issues. By comparing environmental degradation and efforts towards sustainable development, the thesis draws examples from Senegal's coastal management successes to recommend environmental policy for Ghana's Greater Accra Region.

Maru Abebaw Berhanu, Juliet Akola · VNU Journal of Science: Natural Sciences and Technology (Vietnam National University) · Ethiopia

A descriptive study in Debre Markos Town, Ethiopia, involving 152 farmers/enterprises and 8 officials, identified major types of urban agriculture, stakeholders, environmental challenges, and benefits. Findings indicated that animal husbandry is the most common urban agricultural activity, and stakeholders' environmental concern was very low. 55.9% of urban agriculture's environmental challenges, such as waste dumping, soil loss, and biodiversity loss, were attributed to a lack of environmental attention.

Taibat Lawanson, Olabode Orelaja, Michael Simire · African Journal of Science Technology Innovation and Development · Nigeria (Lagos)

This case study investigated the effects of climate change on agricultural activities in the Igbe Farming Community, Lagos, Nigeria, by surveying 161 farmers. The study found that most migrant farmers leased plots annually or biennially and made marginal profits of $200 to $350 per farming cycle. Erratic weather patterns and aggressive urban growth were major challenges, leading 48% of respondents to engage in informal enterprises.

J.F.Y.A. Knegtel, Sershen Naidoo · · South Africa

This article describes the findings of a recent study conducted in the low-income area of Cato Manor, eThekwini, South Africa. The study investigated whether climate-smart urban agriculture could improve the livelihoods of people in urban environments affected by climate change and globalization.

H. C. Agada, E. A. Obienusi, Emma E. Ezenwaji · Journal of environment and earth science · Nigeria

This study evaluated urban forestry and housing patterns in Awka metropolis, Anambra State, Nigeria, over a ten-year period (2001-2010). Analysis of land use data using linear regression and correlation coefficients confirmed a significant correlation between housing patterns (urbanization) and the distribution of trees (forestry). The least square regression results indicated that the rate of forest displacement is a direct consequence of increasing structural development in the study area.

Vide Adedayo, Mayowa Fasona, Taiwo Kuti · Journal of Geography and Geology · Nigeria

Using rainfall and temperature data from 1971 to 2006 alongside pesticide sales data from selected vendors and farmers, this study analyzed the relationship between climate elements, pest activity and pesticide usage in urban farming communities in Lagos, Nigeria. Rainfall was found to have increased by about 42 mm per year per decade and temperature by about 0.27°C per year per decade over the period. Maximum recorded temperatures were 32.6°C in February and 28.2°C in August. Pest activity was widespread during the dry season when temperatures were high, stimulating increased pest attacks on crops and increased pesticide use. Pesticide usage was estimated at roughly 30,000 liters in February and 15,000 liters in August.

Chinenye Agbaje, Ogechi Nwachukwu · Zenodo (CERN European Organization for Nuclear Research) · Nigeria (Lagos)

This study investigated the efficacy of smart irrigation schemes to address water management challenges in urban rooftop gardens in Lagos, Nigeria. Employing a mixed-method approach with quantitative data analysis and qualitative interviews, it found that smart irrigation systems reduced water consumption by an average of 25% compared to traditional methods, with a 95% confidence level. The research provided robust evidence for the efficacy of smart irrigation schemes in urban rooftop gardens, offering policy recommendations for sustainable water management policies.

AN Asadu, EM Igbokwe, JM Chah, IA Enwelu · Journal of Agricultural Extension · Nigeria (Enugu)

This study investigated farmers' perceptions of health and environmental hazards from urban livestock keeping in Enugu Urban, Nigeria, interviewing 75 heads of households. While all respondents were aware of general health and environmental implications, only 4.0% knew livestock could cause climate change. Identified environmental issues included crop destruction (89.3%), urban filth (89.3%), and noise (88.0%), while health issues included disease spread (50.7%), accidents (46.7%), and bad smell (86.7%).

Femi Adesina, Ifunanya Oluwadamilola, Chinedu Akwu · Zenodo (CERN European Organization for Nuclear Research) · Nigeria (Lagos)

In 2013, the effectiveness of an awareness campaign promoting water conservation behaviors was investigated among 150 urban female gardeners in Lagos, Nigeria. A mixed-methods approach, including pre- and post-intervention surveys, found a significant increase from 25% to 48% in the adoption of water-saving irrigation techniques after the campaign. While the campaign was effective in enhancing knowledge and behavior, further tailored interventions are recommended for sustained impact.

R. O. Yusuf · · Nigeria (Kaduna State)

In Zaria, Kaduna State, Nigeria, a study examined the contribution of urban farming activities utilizing water from excavation pits to farmers' income and food security, and the eco-supportive component of using these pits. Data were collected from 10 farmers between December 2011 and May 2012 through structured interviews and observation. Farmers cultivated various crops and obtained higher incomes from farming compared to their primary occupations. The utilization of excavation pits was found to be eco-supportive by regulating the microenvironment's water balance, serving as carbon sinks, and providing low-cost water extraction. However, observed constraints included insecure land tenure, disturbance from straying domestic animals, and theft of farm produce.

Teferi Daba Lemma, M. S. A. Rao · · Ethiopia

This study assessed the social and environmental sustainability of urban and periurban agriculture (UPA) in selected towns of Ethiopia, using primary data from 280 households via questionnaires and interviews. The findings indicate that the environmental and health aspects of UPA sustainability are compromised by extensive use of chemical inputs. Furthermore, UPA is inclined to be unsustainable from a social and political perspective.

CDR Aza-Gnandji, Yongxin Xu, Lincoln Raitt, Jonathan Levy · Water SA · South Africa (Cape Town)

This study explored the salinity of irrigation water from the Cape Flats aquifer in the Philippi farming area of Cape Town, South Africa, collecting water samples from boreholes and ponds in summer and winter. Concentrations of chloride, nitrate, potassium, and sodium exceeded target maximum limits set by DWAF and FAO guidelines. Groundwater and pond water were found to be brackish in most parts of the research area, with salinization primarily attributed to agricultural activities. The water is generally suitable for irrigation but requires caution for salt-sensitive vegetables.

Odewumi Odewumi · Journal of Geography and Regional Planning · Nigeria (Ibadan)

This study surveyed 145 farmers in two urban agricultural communities in Ibadan Metropolis, Nigeria, to examine their perception of climate change and its effects on urban agriculture. Results showed that 89.6% of respondents perceived climate change and increased variability over the past five years, with effects including temperature increases, fewer rainy days, and more rainstorms and floods. Multiple regression analysis indicated that farmers' socio-economic characteristics had no significant influence on their perception of climate variation effects.