دراسة التصحر في منطقة صبراتة في شمال غرب ليبيا بواسطة تقنية الاستشعار عن بعد ونظم المعلومات الجغرافية

Abstract

This study was conducted to highlight the desertification signs in Sabratha area located in the North-West of Libya between 12^o 24'10'E-12^o31'40'E, and 32^O42'0''N-32^O50'0''N. The total area was 19.632 hectare. Two LANDSAT 5 satellites images, one of 2002 and the other of 2018, were used as sources of data. ERDAS IMAGINE and GIS Software were used to process the images. In addition, Topographic and geological maps, and field work were used to make ensure of the accuracy of the image and confirm the final results. Satellite images analysis revealed that sand land has decreased in 2018 as compared to 2002 by 5265 Ha, while the agricultural land increased by 6797 Ha and Sabkha increased by 309 Ha. On the other hand, the bare land areas decreased by 1849 Ha.