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A GIS-based DRASTIC approach to assessing aquifer vulnerability adapted for intrinsic risks posed by differing land uses (Rustenburg Municipality)
Dissertation (MSc)--University of Pretoria, 2014.
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| Format: | Thesis |
| Language: | English |
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University of Pretoria
2016
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| _version_ | 1867613669200756736 |
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| access_status_str | Open Access |
| author2 | Dippenaar, Matthys Alois |
| author_browse | Dippenaar, Matthys Alois |
| author_facet | Dippenaar, Matthys Alois |
| collection | Thesis |
| dc_rights_str_mv | © 2016, University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. |
| description | Dissertation (MSc)--University of Pretoria, 2014. |
| format | Thesis |
| id | oai:repository.up.ac.za:2263/53533 |
| institution | University of Pretoria (South Africa) |
| language | English |
| last_indexed | 2026-06-10T12:39:48.717Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UPSpace — University of Pretoria Institutional Repository |
| publishDate | 2016 |
| publishDateRange | 2016 |
| publishDateSort | 2016 |
| publisher | University of Pretoria |
| publisherStr | University of Pretoria |
| record_format | dspace |
| source_str | UPSpace — University of Pretoria Institutional Repository |
| spelling | oai:repository.up.ac.za:2263/53533 A GIS-based DRASTIC approach to assessing aquifer vulnerability adapted for intrinsic risks posed by differing land uses (Rustenburg Municipality) Dippenaar, Matthys Alois jakomostert@gmail.com Bumby, Adam John Mostert, Samuel Jakobus UCTD Dissertation (MSc)--University of Pretoria, 2014. Groundwater resources play a vital role in the sustainability of a vast majority of communities world-wide. Various anthropogenic activities (particularly related to agriculture, mining, and other diffuse and point sources of contamination), however, pose a significant threat to the quality of groundwater resources. Once contaminants reach the aquifer, the mitigation thereof becomes expensive and often not readily possible. A proactive approach to the assessment of aquifer vulnerability to contamination, rather than a reactive approach, is thus of utmost importance for the future sustainability of our groundwater resources. This dissertation deals with the assessment of aquifer vulnerability in the Rustenburg Municipality, South Africa. The assessment of aquifer vulnerability is conducted using a well-known vulnerability index called DRASTIC within a geographical information system (GIS) environment. DRASTIC is an acronym for a set of parameters that characterize the hydrogeological setting and combined evaluated aquifer vulnerability; viz.: Depth to water level, Nett Recharge, Aquifer media, Soil media, Topography, Impact of the vadose zone, and Hydraulic Conductivity. An additional objective is to adapt the current DRASTIC model to account for the potential influence of land surface uses on groundwater resources through the incorporation of land use as a vulnerability factor. The final vulnerability map shows that the highest vulnerability aquifer rating fell within the range of moderately high vulnerable (7-8) and the addition of the land use variable did not change the highest vulnerability rating. The spatial distribution of the moderately high vulnerable areas, however, was found to vary significantly with incorporation of the land use parameter. GIS proved great compatibility with an aquifer vulnerability model such as DRASTIC. Geography, Geoinformatics and Meteorology MSc Unrestricted 2016-07-01T10:33:26Z 2016-07-01T10:33:26Z 2016-04-05 2014 Dissertation Mostert, SJ 2016, A GIS-based DRASTIC approach to assessing aquifer vulnerability adapted for intrinsic risks posed by differing land uses (Rustenburg Municipality), MSc Dissertation, University of Pretoria, Pretoria, viewed yymmdd <http://hdl.handle.net/2263/53533> A2016 http://hdl.handle.net/2263/53533 en © 2016, University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. application/pdf University of Pretoria |
| spellingShingle | UCTD A GIS-based DRASTIC approach to assessing aquifer vulnerability adapted for intrinsic risks posed by differing land uses (Rustenburg Municipality) |
| title | A GIS-based DRASTIC approach to assessing aquifer vulnerability adapted for intrinsic risks posed by differing land uses (Rustenburg Municipality) |
| title_full | A GIS-based DRASTIC approach to assessing aquifer vulnerability adapted for intrinsic risks posed by differing land uses (Rustenburg Municipality) |
| title_fullStr | A GIS-based DRASTIC approach to assessing aquifer vulnerability adapted for intrinsic risks posed by differing land uses (Rustenburg Municipality) |
| title_full_unstemmed | A GIS-based DRASTIC approach to assessing aquifer vulnerability adapted for intrinsic risks posed by differing land uses (Rustenburg Municipality) |
| title_short | A GIS-based DRASTIC approach to assessing aquifer vulnerability adapted for intrinsic risks posed by differing land uses (Rustenburg Municipality) |
| title_sort | gis based drastic approach to assessing aquifer vulnerability adapted for intrinsic risks posed by differing land uses rustenburg municipality |
| topic | UCTD |
| url | http://hdl.handle.net/2263/53533 |