Abstract
Groundwater happens to be an accessible and renewable source of water, and so has to be monitored. A Multi-criteria Decision approach was utilized which allows for data fusion of various thematic criteria using the Analytical Hierarchical approach to assign weight to the selected criteria peculiar to Igede-Ekiti, of Irepodun/Ifelodun Local Government Area. The study aims to carry out a geospatial assessment of the groundwater potential zone within Igede Ekiti, Ekiti state. Geology, Rainfall, Digital Elevation Model, Land Use land cover, Nominal difference in water Index (NDWI), Slope and Lineament density were selected to depict the potential groundwater zones, of which geospatial assessments were carried out. Selected groundwater sources in the form of boreholes and well were afterwards used to ground truth and depict the distribution of groundwater sources within the study area. The ArcMap software’s weight overlay Analysis was used to present the output in the form of a Potential Groundwater zones (PGWZ) map, with the Groundwater sources, wells and boreholes, indicating that they were well dispersed within the study area, but more densely situated around the built-up class of the study area. The results indicate that high PGWZ was more prevalent than the other classes, as the classes were distributed into very high, high and low PGWZ. The very high PGWZ covered 7%, the high PGWZ 55% and the Low PGWZ, 38%. The study can be used for further physical planning and decision-making for policymakers. Further research into the Spatio-temporal behaviour of groundwater potential is recommended.
Reference14 articles.
1. Adebayo, W. O. (1993) Weather and Climate. In Ebisemiju, F.S. (ed.) Ado-Ekiti Region. A Geographical Analysis and Master Plan. Lagos: Alpha Prints.
2. Al-Ozeer, A.Z., Al-Abadi, A.M., Hussain, T.A., Fryar, A.E., Pradhan, B., Alamri, A.; Abdul Maulud, K.N (2021). Modeling of Groundwater Potential Using Cloud Computing Platform: A Case Study from Nineveh Plain, Northern Iraq. Water 2021, 13, 3330. https://doi.org/10.3390/w13233330
3. Bayowa O.G., Olorunfemi M.O., Akinluyi F.O., and Ademilua O.L (2014). Integration of hydrogeophysical and Remote Sensing data in the assessment of Groundwater potential of the basement complex terrain of Ekiti state, Southwestern Nigeria. Ife journal of science, 3.
4. Das, S.K. (2019). Comparison among influencing factor, frequency ratio, and analytical hierarchy process techniques for groundwater potential zonation in Vaitarna basin, Maharashtra, India. Groundwater for Sustainable Development. https://doi.org/10.1016/J.GSD.2019.03.003
5. Jamiu, A.A. (2020). Groundwater Resources and Management in Nigeria. Programme officer (Groundwater), Regional Centre for Integrated River Basin Management National Water Resources Institute, P.M.B. 2309, Kaduna, Nigeria. Groundwater Resources and Management in Nigeria.