Laboratory of Remote Sensing and GIS Department of Soil Science University of Tehran Karaj 31587-77871 Iran;
Department of Mining Engineering Hacettepe University 06800 Beytepe Ankara Turkey;
Department of Crop and Soil Sciences Kwame Nkrumah University of Science and Technology Kumasi 00233 Ghana;
Department of Agriculture Islamic Azad University Mashhad Branch P.O.Box: 91735-413 Mashhad 91735-413 Iran;
Department of Computer Science Kumasi Technical University Kumasi 00233 Ghana;
Government Degree College Ramban-182144 Jammu and Kashmir India;
Physical Geography Trier University 54286 Trier Germany;
Soil Erosion and Degradation Research Group.Department of Geography Valencia University Blasco Ibà(n)ez 28 46010 Valencia Spain;
