A Comparative Analysis of the Vegetation and Topsoil Cover Nutrient Status between Two Similarly Rehabilitated Ash Disposal Sites

L. Van Rensburg, T.L. Morgenthal, H. van Hamburg and M.D. Michael
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L. Van Rensburg: North-West University, Potchefstroom Campus
T.L. Morgenthal: North-West University, Potchefstroom Campus
H. van Hamburg: North-West University, Potchefstroom Campus
M.D. Michael: ESKOM Enterprises TSI Division

Environment Systems and Decisions, 2003, vol. 23, issue 4, 285-295

Abstract: Abstract The aim of this paper is to compare the rehabilitation result between two ash disposal sites with regard to its vegetation establishment and soil nutrient status. The study areas were situated in close proximity, in the Mpumalanga coalfield, South Africa. Although both areas received a similar amelioration treatment and were seeded with similar seed mixture the vegetation composition were significantly different. Both areas were poor in essential nutrients, this probably being one of the most limiting factors for vegetation establishment. No serious phytotoxic conditions, as is frequently experience with coal ash, could be identified. A regular monitoring and low level maintenance program is therefore proposed to improve the sustainability of the vegetation. The study proposed that results form such evaluations be used to identify performance standards for rehabilitated derelict land.

Keywords: coal ash; rehabilitation; nutrient status; vegetation (search for similar items in EconPapers)
Date: 2003
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DOI: 10.1023/B:ENVR.0000031359.70523.4a

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