 The Use of Remote Sensing and GIS to Identify Water Erosion Risks Areas in the Moroccan High Atlas. The Case Study of the N’fis Wadi WatershedAdama Amaya, Abdellah Algouti and Ahmed Algouti International Journal of Sciences, 2014, vol. 3, issue 02, 43-51 Abstract: The N’fis wadi is a part of hydraulic Tensift watershed. It starts in the axial zone of the Marrakech High Atlas. The water erosion in the N'fis watershed promotes dams collectors siltation, which is a major water supply problem in this area. The present work is to develop a water erosion risk map of the N’fis Wadi watershed; in the aim to enable decision makers, implementing a management strategy of the watershed, in order to fight against siltation. In this context a methodological approach is adopted to achieve our objective. This approach is based on the creation of several thematic maps (hypsometric, slope, friability, fracturing, and vegetation cover) with digital processing of the satellite Landsat data, SRTM data, topographic maps and geological map of the study area. The superposition of these maps allowed the identification of the active water erosion areas, across the watershed. This card is validated by field surveys. Keywords: N’fis watershed; siltation; water risk; remote sensing; GIS (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:adm:journl:v:3:y:2014:i:2:p:43-51 Ordering information: This journal article can be ordered from Access Statistics for this article More articles in International Journal of Sciences from Office ijSciences Alkhaer Publications Manchester M8 8XG England. |
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