الفهرس 
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Abstract
The present study concerns with the environmental assessment of the Red Sea coastal plain between Shalateen and Abu Ramad, Gabal Elba protected area, Eastern Desert Egypt, using remote sensing and GIS techniques as promising area for future urbanization and reclamation. The study area, the delta of Wadi Diit is located between Shalateen and Abu Ramad at the Red Sea coast in the southern Eastern Desert of Egypt, between latitude 22° 15` 30``– 22° 45`N and longitude 35° 55`- 36° 24`E. This site represents one of the localities that didn’t take much attention in the past. The present study deserves the concerned area to be scientifically explored from the geo-environmental point of view to high lighten its characteristics. • The main wadi is well recognizable land types in both high mountains and low level regions. The main wadi takes its path within weak zones that can be easily eroded by running rain water. • The alluvial fan length from the fan apex ahead to the coast line is about 30 km while the width is about 20 km. • Wadi Diit drainage is classified as third order in the northern part which may be considered as not suitable for the future planning as it may be exposed to flash floods that threaten the coastal roads and infrastructure of the newly built tourism villages and native life settlements. • The soil samples in the study area vary from sandy gravel, gravely sand, slightly gravely sand, sand, and muddy sand. • The soil samples in the study area vary from sandy gravel, gravely sand, slightly gravely sand, sand, and muddy sand. • Macro-nutrient nitrogen was found in low to medium critical limits, phosphorous content lets the soil as low fertility to medium fertility and potassium content is around the low fertility limits. • All groundwater samples are satisfactory for salts tolerant crops on soils of good permeability with special leaching. • In general the study area is radioactive safe due to lower values of effective dose rate where the maximum value was 0.37mSv/yr and hazard index levels with a maximum value was 0.33nGy/yr. Furthermore, the soil studied from the area under consideration reflects heavy metals concentration lower than the maximum allowable amounts. • The results of this study pointed out that there is a balance between the erosion and accretion rates. So, there is no a serious change in the shoreline morphology, which may affect the future planning of the coastal area.