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Site selection for rainwater harvesting : a case of KwaZulu-Natal, South Africa
Dissertation (MSc (Geoinformatics))--University of Pretoria, 2024.
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| Format: | Thesis |
| Language: | English |
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University of Pretoria
2024
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| _version_ | 1867613500452372480 |
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| access_status_str | Open Access |
| author2 | Adeleke, Adedayo |
| author_browse | Adeleke, Adedayo |
| author_facet | Adeleke, Adedayo |
| collection | Thesis |
| dc_rights_str_mv | © 2023 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 (Geoinformatics))--University of Pretoria, 2024. |
| format | Thesis |
| id | oai:repository.up.ac.za:2263/96329 |
| institution | University of Pretoria (South Africa) |
| language | English |
| last_indexed | 2026-06-10T12:37:08.286Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UPSpace — University of Pretoria Institutional Repository |
| publishDate | 2024 |
| publishDateRange | 2024 |
| publishDateSort | 2024 |
| 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:2263/96329 Site selection for rainwater harvesting : a case of KwaZulu-Natal, South Africa Adeleke, Adedayo u20765780@tuks.co.za Nunu, Masimthembe UCTD Rainwater harvesting KwaZulu-Natal Multi-criteria decision analysis (MCDA) Geographic information systems Site suitability Sustainable development goals (SDGs) Dissertation (MSc (Geoinformatics))--University of Pretoria, 2024. The rapid growth of the world’s population has placed an increased strain on water resources globally, particularly in sub-Saharan Africa, where communities rely on rainfall for their day to day activities. Water scarcity in KwaZulu-Natal, South Africa, is high because of unevenly distributed rainfall and limited water resources. There is a need for suitable site selection for rainwater harvesting structures in KwaZulu-Natal, which has the potential to address shortage of water currently experienced in the province. Access to adequate water supply and sanitation is crucial for poverty alleviation and addressing the problems faced by vulnerable groups, such as those affected by HIV/AIDS and other diseases. Rainwater collection is a procedure in which rainwater is gathered and stored for a multitude of objectives. This practice encompasses the capture of precipitation either at its point of descent or via the accumulation of runoff from various surfaces such as rooftops, roadways, or landmasses. By facilitating the optimal utilization of rainfall, rainwater collection endorses a diminished reliance on conventional water sources and the minimization of water dissipation. It contributes to the conservation of water resources and ensures their sustainable management. This study aimed to select suitable sites for rainwater harvesting using geographic information systems (GIS) and multi-criteria decision analysis (MCDA) techniques in the province of KwaZulu-Natal, South Africa. Geospatial data on precipitation, soil, slope, runoff curve number and land use were combined to develop a multi-criteria ranking system. Using the Analytical Hierarchical Process (AHP), weights were assigned with rainfall assigned (17), soil texture (39.1), slope (11.3), land cover (5.6) and Runoff curve number (27). The selection of these specific factors for this study areas was based on a review of literature. The study identified moderately to highly suitable sites for rainwater harvesting structures, covering 38% of the study area. Approximately 10% of the study area was considered to be less suitable for rainwater harvesting (RWH). The research findings could facilitate the wider adoption of rainwater harvesting in KwaZulu-Natal to meet irrigation demands and promote sustainable water resource management. The developed methodology can be implemented and adopted by any city or country. This study could be expanded by collecting and analysing various parameters (such as distance to roads, groundwater discharge, and geology and lineaments density, expertise and decision-makers preference value for pairwise matrix comparison). The development of a graphical user interface and improved approach in MCDA in relation to relative weight calculation while integrating the water balance model may also be considered for future research. NRF postgraduate scholarship Geography, Geoinformatics and Meteorology MSc (Geoinformatics) Unrestricted Faculty of Natural and Agricultural Sciences SDG-02: Zero Hunger SDG-06: Clean water and sanitation SDG-11: Sustainable cities and communities 2024-06-06T09:43:47Z 2024-06-06T09:43:47Z 2024-09-06 2024-05-07 Dissertation * S2024 http://hdl.handle.net/2263/96329 10.25403/UPresearchdata.25959541 en © 2023 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 Rainwater harvesting KwaZulu-Natal Multi-criteria decision analysis (MCDA) Geographic information systems Site suitability Sustainable development goals (SDGs) Site selection for rainwater harvesting : a case of KwaZulu-Natal, South Africa |
| title | Site selection for rainwater harvesting : a case of KwaZulu-Natal, South Africa |
| title_full | Site selection for rainwater harvesting : a case of KwaZulu-Natal, South Africa |
| title_fullStr | Site selection for rainwater harvesting : a case of KwaZulu-Natal, South Africa |
| title_full_unstemmed | Site selection for rainwater harvesting : a case of KwaZulu-Natal, South Africa |
| title_short | Site selection for rainwater harvesting : a case of KwaZulu-Natal, South Africa |
| title_sort | site selection for rainwater harvesting a case of kwazulu natal south africa |
| topic | UCTD Rainwater harvesting KwaZulu-Natal Multi-criteria decision analysis (MCDA) Geographic information systems Site suitability Sustainable development goals (SDGs) |
| url | http://hdl.handle.net/2263/96329 |