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Mapping potential areas for groundwater storage in the High Guir Basin(Morocco):Contribution of remote sensing and geographic information system

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Journal of Groundwater Science and Engineering 2019年第4期7卷 309-322页

作者： abderrahime nouayti Driss Khattach Mohamed Hilali Nordine nouayti Laboratory of Applied Geosciences Faculty of SciencesUniversity Mohamed First Oujda 60000Morocco Research Team of Mining Water and Environment EngineeringFaculty of Sciences and TechniquesMoulay Ismail University52000Post Box:509BoutalamineErrachidiaMorocco Laboratory ofWater and Environmental Engineering Al Hoceima National School of Applied Sciences PO Box 03Ajdir Al Hoceima

Identification of water potential areas in arid regions is a crucial element for the enhancement of their water resources and socio-economic development. In fact, water resources system-planning can be used to make various decisions and implement manage- ment of water resources policies. The purpose of this study is to identify groundwater sto- rage areas in the high Guir Basin by implementing Geographic Information System (GIS) and Remote Sensing methods. The required data for this study can be summarized into five critical factors: Topography (slope), lithology, rainfall, rock fracture and drainage. These critical factors have been converted by the GIS into thematic maps. For each cri- tical parameter, a coefficient with weight was attributed according to its importance. The map of potential groundwater storage areas is obtained by adding the products (coeffi- cient × weight) of the five parameters. The results show that 50% to 64% of the total area of the High Guir Basin is potentially rich in groundwater, where most of fracture systems are intensely developed. The obtained results are validated with specific yield of the aqui- fer in the study area. It is noted that there is a strong positive correlation between excel- lent groundwater potential zones with high flows of water points and it diminishes with low specific yield with poor potential zones.

关键词： High Guir Basin Groundwater storage Remote Sensing Potential assessment Geographic Information System

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