Optimizing Mini Dam Placement for Sustainable Water Management in FUTA: A GIS-MCDA Approach
Öz
Addressing the increasing demand for water resources at the Federal University of Technology, Akure (FUTA) due to the growing population requires a data-driven solution. This study determined the suitable locations for the siting of mini-dams as an alternative solution to the problem of water scarcity in FUTA using a Geographical Information Systems (GIS)-based Multi-Criteria Decision Analysis (MCDA) approach by integrating five thematic factors: drainage density, slope, elevation, land cover and soil texture. Preference values were assigned to the criteria based on their importance to a dam. Analytical Hierarchy Process (AHP) was used to assign weights to these criteria, and they were combined using a weighted sum to produce a mini dam suitability map within the study area. The suitable areas were divided into five classes: highly suitable (9%), suitable (18%), marginally suitable (30%), least suitable (26%) and not suitable (17%). The suitability map was validated against the locations of existing dams in the study area. This study contributes to the efforts to manage water resources for a growing population in FUTA and to evaluate the GIS-AHP approach for dam siting for a small study area.
Anahtar Kelimeler
Dam, Multi-criteria decision analysis (MCDA), Analytical hierarchy process (AHP), Geographical information systems (GIS), Site selection
Kaynakça
- Abushandi, E., & Alatawi, S. (2015). Dam Site Selection Using Remote Sensing Techniques and Geographical Information System to Control Flood Events in Tabuk City. Hydrology Current Research, 6(1), 1000189. https://doi.org/10.4172/2157-7587.1000189
- Akeju, S. B., Ojo, O. M., & Adewumi, J. R. (2021). Current and Future Potable Water Demand and Supply at the Federal University of Technology, Akure, Nigeria. FUOYE Journal of Engineering and Technology, 6(3), 77–81. https://doi.org/10.46792/fuoyejet.v6i3.669
- Aldaya, M. M., Allan, J. A., & Hoekstra, A. Y. (2010). Strategic importance of green water in international crop trade. Ecological Economics, 69(4), 887–894. https://doi.org/10.1016/j.ecolecon.2009.11.001
- Al-Ruzouq, R., Shanableh, A., Yilmaz, A. G., Idris, A., Mukherjee, S., Khalil, M. A., & Gibril, M. B. A. (2019a). Dam Site Suitability Mapping and Analysis Using an Integrated GIS and Machine Learning Approach. Water, 11, 1880. https://doi.org/10.3390/w11091880
- Al-Ruzouq, R., Shanableh, A., Merabtene, T., Siddique, M., Khalil, M. A., Idris, A., & Almulla, E. (2019b). Potential groundwater zone mapping based on geo-hydrological considerations and multi-criteria spatial analysis: North UAE. Catena, 173, 511–524. https://doi.org/10.1016/j.catena.2018.10.037
- Al-shabeeb, A. R. (2016). The Use of AHP within GIS in Selecting Potential Sites for Water Harvesting Sites in the Azraq Basin—Jordan. Journal of Geographic Information System, 8(1), 73–88. https://doi.org/10.4236/jgis.2016.81008
- Amadi, A. N., Olasehinde, P. I., Ameh, I. M., okunlola, I. A., & Dan-Hassan, M. A. (2015). Investigating the Groundwater Potential at The Boys Hostel, Bosso Campus, Federal University of Technology Minna, Using Electrical Resistivity Method. Water Resources, 25, 92–107.
- Boroushaki, S., & Malczewski, J. (2008). Implementing an extension of the analytical hierarchy process using ordered weighted averaging operators with fuzzy quantifiers in ArcGIS. Computers & Geosciences, 34(4), 399–410. https://doi.org/10.1016/j.cageo.2007.04.003
- Cosgrove, W. J., & Loucks, D. P. (2015). Water management: Current and future challenges and research directions. Water Resources Research, 51(6), 4823–4839. https://doi.org/10.1002/2014WR016869
- Dai, X. (2016). Dam site selection using an integrated method of AHP and GIS for decision making support in Bortala, Northwest China [Master’s thesis, Lund University]. http://lup.lub.lu.se/student-papers/record/8886448
