to the Sorbonne in 1927, Cholley came to adopt a process-orientated approach to geomorphology, advocated a holistic conception of geography and introduced a rudimentary systems approach covering both physical and human components of the discipline
in the field. His teaching career at the University of Paris lasted for a quarter of a century, focusing initially on North Africa and then on geomorphology, with increasing emphasis on arid regions, desertification and development studies. Jean Dresch directed