Professor A. Cerda is working at the Departament de Geografia. Universitat de València. Blasco Ibàñez, 28, 46010-Valencia. Spain. His major subject is in physical geography which has developed his research at the Universitat de València, Universiteit van Amsterdam, Bar-Ilan University, and the Centro de Investigaciones sobre Desertificación and the Instituto Pirenaico de Ecología del Consejo Superior de Investigaciones Científicas from the Spanish Council for Scientific Research. Dr. Cerdà develops Research exchanges with the United States Forest Service and United States Geological Service, Swansea University, Michigan Technological University and The University of Melbourne. Since 2011 is President of the Soil System Sciences Division of the European Geoscience Union. Miembro de Fuegored. He is also as Editor-in-Chief of Land Degradation and Development.