The following study is about the vulnerability environmental, social and socio environmental of down progress of Coco river's watershed, at Fortaleza-CE. The methodology has been based in the use of Geographic Information Systems to the preparation and integration of geology maps, geomorphology, vegetation, vegetation, urban infrastructure and economic and social information with the view to get the natural vulnerability, environmental, social and finally the socio environmental. The results indicate that the environments of high environmental vulnerability coexist with the high social vulnerability, expanding the socio environmentals problems of those spaces. The vulnerability mapping aims to contribute to the urban-environmental planning of watershed down progress and this sense the Geoinformation System has been primordial to itself spatialization.
SIG; Socio environmental vulnerability; watershed
