Research Publications (Geography & Environmental Studies)
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Urban food insecurity and the impact of China’s affordable food shop (AFS) program: a case study of Nanjing City
(Applied Geography, 2023)Food subsidies are widely implemented as part of government policies globally to mitigate food insecurity amongst the urban poor. Subsidies to retail outlets are one a type of supply-side subsidy designed to make food more ... -
How do we get the community gardening? Grassroots perspectives from urban gardeners in Cape Town, South Africa
(Taylor and Francis Group, 2023)Urban agriculture offers numerous environmental, economic, and socialbenefits. However, it is often hampered by limited engagement in cities of theglobal South. This article offers bottom-up perspectives on how to increasethe ... -
Urban agriculture and the sustainability nexus in South Africa: Past, current, and future trends
(Springer, 2023)Urban agriculture remains a topical issue that needs to be better understood in striving for sustainable cities, particularly in sub-Saharan Africa. Through a literature review, this article examines urban agriculture ... -
Assessing the prospects of remote sensing maize leaf area index using uav-derived multi-spectral data in smallholder farms across the growing season
(MDPI, 2023)Maize (Zea Mays) is one of the most valuable food crops in sub-Saharan Africa and is a critical component of local, national and regional economies. Whereas over 50% of maize production in the region is produced by ... -
Boundaries of benefit sharing: interpretation and application of substantive rules in the Lake Malawi/Niassa/Nyasa sub‑basin of the Zambezi Watercourse
(Springer, 2023)questions regarding how riparian states determine “who gets what, where, and why” in a shared watercourse. To facilitate peaceful coexistence, substantive rules—“equitable and reasonable utilisation (ERU)” and “the duty ... -
Public space and the cohesion-contestation spectrum
(GeoJournal, 2023)The urban policy assumption of public space’s generative capacity for cohesion stands out as limited in the face of the reality of South African urban public space. Drawing on observations and experiences in a range of ... -
Pathways to food insecurity: Migration, hukou and Covid‐19 in Nanjing, China
(Wiley, 2022-12-08)The COVID‐19 pandemic has issued significant challenges to food systems and the food security of migrants in cities. In China, there have been no studies to date focusing on the food security of migrants during the pandemic. ... -
Black Belonging, White Belonging: Primitive Accumulation in South Africa's Private Nature Reserves
(Wiley, 2023)victions have been shown to be a mechanism of primitive accumulation in nature conservation. This paper adds an historical analysis to the discussion on primitive accumulation in conservation by exploring the seemingly ... -
Covid-19 and urban food security in Ghana during the third wave
(MDPI, 2023)While the effects of the COVID-19 pandemic on household food security have been documented, the intensity and forms of food insecurity in urban households in the Global South have not been adequately explored. This is ... -
Crop monitoring in smallholder farms using unmanned aerial vehicles to facilitate precision agriculture practices: A scoping review and bibliometric analysis
(MDPI, 2023)In this study, we conducted a scoping review and bibliometric analysis to evaluate the state-of-the-art regarding actual applications of unmanned aerial vehicle (UAV) technologies to guide precision agriculture (PA) ... -
'Africanisation' of South Africa's international air links, 1994-2003
(Elsevier, 2006)In the first decade of democratic rule in South Africa scheduled commercial passenger flights across the country’s borders more than doubled. Additional flights served new African air passenger markets and secondary airports ... -
Mapping the spatial distribution of underutilised crop species under climate change using the MaxEnt model: A case of KwaZulu-Natal, South Africa
(Elsevier, 2022)Knowing the spatial and temporal suitability of neglected and underutilised crop species (NUS) is important for fitting them into marginal production areas and cropping systems under climate change. The current study ... -
Estimation of maize foliar temperature and stomatal conductance as indicators of water stress based on optical and thermal imagery acquired using an unmanned aerial vehicle (uav) platform
(MDPI, 2022)Climatic variability and extreme weather events impact agricultural production, especially in sub-Saharan smallholder cropping systems, which are commonly rainfed. Hence, the development of early warning systems regarding ... -
Preparing for COVID-19: Household food insecurity and vulnerability to shocks in Nairobi, Kenya
(Public Library of Science, 2021)An understanding of the types of shocks that disrupt and negatively impact urban household food security is of critical importance to develop relevant and targeted food security emergency preparedness policies and responses, ... -
Boon or bane? Urban food security and online food purchasing during the Covid-19 epidemic in Nanjing, China
(MDPI, 2022)This paper examines the relationship between the rapid growth of online food purchasing and household food security during the first wave of the COVID-19 pandemic in China using the city of Nanjing as a case study. The ... -
Deserving and undeserving welfare states: Cash transfers and hegemonic struggles in South Africa
(Routledge, 2022)The South African social grant programme appeared as if it might suddenly end on 1 April 2017. The potential termination of grants kicked off a significant public outcry by members of parliament, the judiciary, the ... -
Comprehensive food system planning for urban food security in Nanjing, China
(MPDI, 2021)Food system planning is important to achieve the goal of “zero hunger” in the UN’s 2030 Agenda for Sustainable Development (UN, 2016). However, discussion about comprehensive planning for food security is scarce and ... -
Mapping rangeland ecosystems vulnerability to lantana camara invasion in semi-arid savannahs in South Africa
(African journal of ecology Wiley, 2022)We mapped and modelled the potential areas vulnerable to Lantana camara (L. camara) invasion in semi-arid savannah ecosystems in the communal lands of Bushbuckridge and Kruger National Park, South Africa. Specifically, ... -
Assessment of cyclone idai floods on local food systems and disaster management responses in Mozambique and Zimbabwe
(Springer, Cham, 2021)In recent years, countries in southern Africa have experienced frequent hydro-meteorological disasters, such as widespread flooding caused by tropical cyclones. This chapter takes a close look at the destructive aspects ... -
A comparative estimation of maize leaf water content using machine learning techniques and unmanned aerial vehicle (uav)-based proximal and remotely sensed data
(MPDI, 2021): Determining maize water content variability is necessary for crop monitoring and in developing early warning systems to optimise agricultural production in smallholder farms. However, spatially explicit information on ...
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