Research Publications (Geography & Environmental Studies)
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Wild and Indigenous Foods (WIF) and Urban Food Security in Northern Namibia
(Springer Science and Business Media B.V., 2024)Rapid urbanisation and food system transformation in Africa have been accompanied by growing food insecurity, reduced dietary diversity, and an epidemic of non-communicable disease. While the contribution of wild and ... -
The nanjing model: comprehensive food system governance, localization and urban food security in China
(Elsevier B.V., 2023)Food supply localization has been extensively studied and advocated in North America and Europe, focusing on its oppositional stance to food system globalization, long food supply chains, the disconnect between producers ... -
Remote sensing hail damage on maize crops in smallholder farms using data acquired by remotely piloted aircraft system
(Elsevier B.V., 2023)Smallholder farmers reside in marginal environments typified by dryland maize-based farming systems. Despite the significant contribution of smallholder farmers to food production, they are vulnerable to extreme weather ... -
The past in present African urban mobility systems: Towards a mobilities longue durée
(Springer Nature, 2023)Building on the notion that mobility plays a critical role in everyday urban life in Africa as elsewhere, this editorial provides an introduction to the special collection ‘The Past in Present African Urban Mobility Systems’. ... -
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 ... -
Wild and indigenous foods (wif) and urban food security in northern Namibia
(Urban Forum, 2023)Rapid urbanisation and food system transformation in Africa have been accompanied by growing food insecurity, reduced dietary diversity, and an epidemic of non-communicable disease. While the contribution of wild and ... -
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 ...