2. Academic Wits University Research Outputs (All submissions)
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Item Mining landscapes of the Gauteng City-Region(Gauteng City-Region Observatory, 2018-01) Bobbins, Kerry; Trangos, GuyThe extraction of gold along the Witwatersrand mining belt has fundamentally shaped the Gauteng City-Region (GCR) over more than a century. Mining in the region occurred across a vast area. The Witwatersrand basin is made up of three sub-basins – the West’, ‘Central’ and ‘East’ Rand – and stretches across a further seven distinct gold mining areas. These goldfields attracted prospectors, industrialists and work-seekers from across South Africa and around the world. They were responsible for the formation of Johannesburg and, over time, the development of large parts of the extended metropolis around it. For many years, gold mining produced immense wealth for mining companies, banks and residents – indeed the wealth extracted fired the entire South African economy. But there have been negatives. Gold mining also spawned a war, entrenched deep social divides, instilled exploitative labour practices, and devastated the natural environment. Though the industry is now in decline, the landscapes affected by mining are still identifiable by toxic scars that traverse the city-region. This Research Report, GCRO’s seventh, considers how the legacies of mining have been imprinted on the towns and cities of the Gauteng City-Region. The report uses ‘mining landscapes’ as a conceptual device to structure an analysis of the diverse impacts of mining, and to highlight the need for a comprehensive and collaborative approach to manage its after-effects. The report makes a unique contribution to existing literature on mining and mining waste in the city-region by presenting an integrated perspective on their urban, environmental, social and economic processes, characteristics and consequences, both historical and contemporary. While accounts are often told from the viewpoint of specific disciplines (such as history, geography or sociology), the analyses presented in this report – comprising of written pieces, archival excerpts and photo essays – are unbounded by distinctive disciplinary conforms. This allows for the diversity of the landscape to be explored in new ways. The report makes a call for the GCR’s mining landscapes to be understood as a connected landscape of systems rather than a set of isolated and forgotten features of a bygone mining era. From the abandoned mine areas that scatter the surface of the GCR, to earth tremors caused by hollowed out cavities below the earth, silicosis, acid mine drainage, distressed mining towns and more recent histories of artisanal mining – the legacy of gold mining in Gauteng has a variety of expressions, all emerging from the same interconnected history. The concluding chapter looks to the future and considers the possibilities for innovative and collaborative approaches to unshackle the towns and cities of the Witwatersrand from their gold-mining inheritance. This includes the prospects for spatial transformation, repairing social divisions, cultivating natural assets, and remedying the destructive health and environmental effects of a century of mining activity.Item Land-cover change in the Kruger to Canyons Biosphere Reserve 1993-2006): A first step towards creating a conservation plan for the subregion.(Academy of Science of South Africa (ASSAf), 2010-07) Coetzer, K.L.; Erasmus, B.F.N.; Witkowski, E.T.F.; Bachoo, A.K.This paper is a first step towards a conservation plan for the Kruger to Canyons Biosphere Reserve K2C) on the South African Central Lowveld, quantifying the historical land-cover trends 1993-2006). During the analysis period, 36% of the biosphere reserve BR) underwent land-cover change. Settlement areas increased by 39.7%, mainly in rural areas, becoming denser, particularly along roadways. Human-Impacted Vegetation increased by 6.8% and Intact Vegetation declined by 7.3%, predominantly around settlement areas, which is testament to the interdependency between rural communities and the local environment. However, settlement expansion exceeded the rate of rangeland growth; in the long term, this may raise questions for sustainable resource extraction. Similarly, the block losses of intact vegetation are of concern; issues of fragmentation arise, with knock-on effects for ecosystem functioning. In the economic sector, agriculture increased by 51.9%, while forestry and mining declined by 7.1% and 6.3%, respectively. The future of these three sectors may also have significant repercussions for land-cover change in the BR. The identification of historical drivers, along with the chance that existing trends may continue, will have important implications for biodiversity protection in this landscape. Applied within a conservation-planning framework, these land-cover data, together with economic and biodiversity data, will help reconcile the spatial requirements of socio-economic development with those of conservation.