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Regional suitability assessment of Fars Province for subsurface dam implementation
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Hamid Hosseinimarandi *    , Alireza Majidi , Parsa Haghighi |
| Assistant Professor, Soil Conservation and Watershed Management Research Department, Fars Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization (AREEO), Shiraz, Iran , Email: hhmarand@gmail.com |
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Abstract: (83 Views) |
| Subsurface dams are recognized as effective and strategic structures for water resources management, particularly in arid and semi-arid regions, where they play a key role in enhancing hydrological resilience by reducing evaporation. This study aimed to identify and delineate suitable sites for subsurface dam construction in Fars Province, Iran. A combined approach using Geographic Information Systems (GIS) and field surveys was applied, integrating spatial datasets including geological maps, topography, river networks, slope, population distribution, and road accessibility. Suitable areas were primarily characterized by sufficiently thick permeable alluvial deposits, underlying low-permeability formations, favorable riverbed slopes, stable subsurface flow, and proximity to water demand points. The analysis identified approximately 100 sites suitable for further detailed studies, with southern and central regions exhibiting higher suitability. This spatial distribution highlights the widespread geological and hydrological potential of the province for subsurface dam implementation. Consequently, a priority map with three levels was produced. Field validation and expert consultations played a key role in enhancing the accuracy and comprehensiveness of the map. Implemented as a digital GIS tool, the map provides precise spatial information to support scientific, efficient, and informed decision-making by stakeholders and policymakers. Periodic updates of the map, complemented by additional studies considering climatic and environmental changes, are recommended to ensure the sustainable performance of subsurface dams. |
Article number: 4 |
| Keywords: Low-permeability formation, Baseflow, Alluvial deposits, River constrictions, Water resilience |
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Type of Study: Research |
Subject:
Special
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