تقييم مخاطر تعرية التربة في حوض وادي حلي جنوب غرب المملكة باستخدام نموذج (RLUSLE)‎ و تقنيتي الاستشعار عن بعد و نظم المعلومات الجغرافية

Abstract EN

The research dealt with determining the spatial pattern of soil erosion risks and producing a map showing the annual rate of soil erosion in the Wadi Heli basin, by applying the global equation model (RUSLE) for soil erosion by remote sensing and GIS techniques to estimate the annual soil loss in the basin.

in the beginning, the most important spatial variables affecting soil erosion in the basin were reviewed, and then the informational layers of the global equation model were derived such as rain, terrain, soil, vegetation cover, and measures taken for soil conservation, and the research classified the final map of the risks of soil erosion in the basin into five levels, first: where water erosion is very weak, less than 1 ton/ha/year, with an area of 4045.731 km2, or 78.94%.

where water erosion is moderate between 10-20 tons/ha/year, with an area of 157.6 km2, or 3.07%, and the fourth: where water erosion is severe between 20-40 tons/ha/year, with an area of 159.99 km2, or 3.12%, and the fifth: where water erosion is very severe, more than 40 tons / hectares / year, with an area of 303.75 km2, or5.93% of the total area of the basin.