Mapping potential areas for groundwater storage in theHigh Guir Basin (Morocco): Contribution of remotesensing and geographic information system

作者：Abderrahime Nouayti,Driss Khattach,Mohamed Hilali,Nordine Nouayti

摘要：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.

发文机构：Laboratory of Applied Geosciences Research Team of Mining Laboratory ofWater and Environmental Engineering

关键词：HighGuirBASINGROUNDWATERstorageRemoteSensingPOTENTIALassessmentGEOGRAPHICInformationSystem

分类号： P64[天文地球—地质矿产勘探][天文地球—地质学]