Integrated Assessment of Groundwater Potential Using Geospatial Techniques in Southern Africa: A Case Study in the Zambezi River Basin
| العنوان: | Integrated Assessment of Groundwater Potential Using Geospatial Techniques in Southern Africa: A Case Study in the Zambezi River Basin |
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| المؤلفون: | Y. E. Woyessa, George Z. Ndhlovu |
| المصدر: | Water Volume 13 Issue 19 Water, Vol 13, Iss 2610, p 2610 (2021) |
| بيانات النشر: | MDPI AG, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | AHP, Geography, Planning and Development, Drainage basin, Climate change, Aquatic Science, Structural basin, Biochemistry, remote sensing, TD201-500, Water Science and Technology, groundwater resources assessment, geography, geography.geographical_feature_category, Water supply for domestic and industrial purposes, Land use, Integrated water resources management, Hydraulic engineering, GIS, Thematic map, Environmental science, integrated water management, Water quality, TC1-978, Water resource management, groundwater potential map, Groundwater |
| الوصف: | Groundwater resources are largely used in rural communities of river basins due to their acceptable water quality and reliability for domestic purposes where little or no treatment is required. However, groundwater resources have been affected by changes in land use, mining activities, agricultural practices, industrial effluent, and urbanisation among anthropogenic influences while climate change impacts and volcanic eruptions have affected its involvement among the natural phenomena. The purpose of the study was to assess groundwater potential in the basin with the use of Analytical Hierarchy Process (AHP), remote sensing, GIS techniques, and groundwater occurrence and movement influencing factors. These factors were used to produce seven thematic maps, which were then assigned weights and scale using an AHP tool, based on their degree of influence on groundwater occurrence and movement. A weighted groundwater potential map was produced with four zones denoted as 0.4% (317 km2) for very good potential 27% (19,170 km2) for good potential 61% (43,961 km2) for moderate potential and 12% (8639 km2) for poor potential. Validation, using existing boreholes, showed that 89% were overlain on moderate to very good potential zones and henceforth considered to be a novel approach which is useful for groundwater resources assessment and integrated water management in the basin. |
| وصف الملف: | application/pdf |
| تدمد: | 2073-4441 |
| DOI: | 10.3390/w13192610 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::64614e683642174b2bf993cb63416c95 https://doi.org/10.3390/w13192610 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....64614e683642174b2bf993cb63416c95 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 20734441 |
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| DOI: | 10.3390/w13192610 |