| Assessment the Desertification Sensitivity Using MEDALUS Model Case Study North Western El Minya Governorate |
| Paper ID : 1009-ICRSSSA-FULL |
| Authors |
|
Hoda Nour Eldin *1, Adel Shalapy2, Rania Mansour3, Ehab Youssef4, neven rostom5, Hossam khedr6 1land uses , Environmental studies ,NARSS, Cairo, Egypt. 2Land use , Environmental studies, (NARSS), Cairo, Egypt 3Land use, Environmental studies, (NARSS), Cairo, Egypt 4Land use, Environmental studies (NARSS), Cairo, Egypt 5land uses, Environmental studies, NARSS, Cairo, Egypt. 6Environmental studies and Land use, National Authority for Remote Sensing and Space Sciences (NARSS), Cairo, Egypt |
| Abstract |
| Desertification leads to a decrease in land productivity, which results from biophysical interaction and human factors with temporal and spatial changes. This paper aims to assess the desertification sensitivity using Mediterranean Desertification and Land Use (MEDALUS) approach in the North Western El Minya Governorate. Landsat 8 (OLI) satellite image, acquired in 2021 and ASTERDEM satellite data were used and five thematic indicators were used in this study including land management, soil, vegetation, water and climate. The indicators were used in the modeling of sensitivity to desertification. The desertification indices were identified based on field survey data, Geographic information Systems (GIS), remote sensing data and climate. The results of physiographic units extraction indicated that within study area there are major landforms, namely Old wadi Sediments, Peniplain, old river terraces, Shoulders, Sand sheets, Rock outcrops, Sand dunes, Erosional Plains, Hill and Plain out wash) The obtained results showed that 86.7 % of the study area is considered as a severe sensitive area to desertification. The main factors inducing are climate condition (arid, semi-arid) and low the quality of soil and management in addition to low vegetation cover. However the moderate sensitive class occupies approximately 3 %. The low sensitive area exhibits 1.06 %. The results can be a basic support for regional-level decision makers who can implement the appropriate measures in order to attenuate the restrictive environmental conditions. |
| Keywords |
| MEDALUS, Desertification, GIS and remote sensing |
| Status: Accepted (Oral Presentation) |
