Browsing by Author "Mseli, Zaina Hussein"

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    Identification of potential groundwater recharge zones at Makutupora basin, Dodoma Tanzania
    (Taylor & Francis Online, 2021) Mseli, Zaina Hussein; Mwegoha, William J. S.; Gaduputi, Sankaranna
    This paper presents results of identifying potential groundwater recharge zones at the Makutupora basin using GIS and remote sensing techniques. The study was based on integration of seven factors known to contribute towards groundwater existence, namely lineaments and drainage density, elevation, slope, lithology, rainfall, and land use/land cover. For each factor, a thematic layer was prepared, reclassified into five classes, and assigned weight based on its contribution to groundwater existence. All weighted thematic layers were overlaid by the weighted sum analysis method using spatial analyst tool in ArcGIS 10.4® to produce spatial distribution of potential groundwater recharge zones. The potential groundwater recharge zones were classified into five classes, ranging from not suitable to more suitable. This study reveals coverage of potential groundwater recharge as: 2% very good zone, 11% good, 40% average, 45.5% poor, and 1.6% very poor. The Southwest, Northeast, and some small sections of the North of the basin are predominantly between good and very good groundwater recharge potential; while the rest of the basin ranges from poor to very poor. These results have provided some useful information to enable exploration of groundwater wells and foster sustainable planning and use of groundwater resources in this area.
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    The sustainability of groundwater in semi-arid regions: The case of Makutupora basin in Tanzania
    (IWA publishing, 2023) Mseli, Zaina Hussein; Said, Alfred; Sankaranna, Gaduputi; Mwegoha, William J. S.
    Groundwater sustainability ensures groundwater development and uses to meet current and future needs without causing unacceptable environmental, economic, or social consequences. In semi-arid regions, water resources are typically limited, and water management is critical to ensure a sustainable water supply. Groundwater sustainability indexing is vital for groundwater management. The study used four indicators in six dimensions, i.e., quantitative and qualitative hydrogeology, environmental, social-economic, and political factors, to evaluate the sustainability of the aquifer in Makutupora basin, Dodoma, Tanzania. The resulting aquifer sustainability index is 0.59, with a 95% confidence interval between 0.3856 and 0.7944, showing that the aquifer is sufficiently sustainable. The hydrogeological analysis revealed that groundwater sustainability is promising, although groundwater use per capita is alarming. This study also recommends effective water management strategies, including improving water use efficiency, promoting water conservation, implementing policies to limit water withdrawals, and promoting alternative water sources such as recycled wastewater, especially for agricultural activities.