G.I.S.: a management instrument for geomorphological sites.

Actually G.I.S. (Geographical Information Systems) are used in geomorphosites research to select and identify automatically landforms with an high scientific or cultural value. In this paper we propose an example of using GIS for tourist request as regards to geomorphosites presence on the territory. Some attributes (scientific, cultural and social economic) well known in literature, identify geomorphosites. Generally one could prevails over the other two and it could becomes the most important for geomorphosite characterisation. Nowadays naturalistic itineraries, for particular tourist groups, request geosites and geomorphosites as an important attraction. Anyway tourist request may be turned mostly towards one of the three attributes characterising a geomorphosite. Different interests could be focused to main cultural and artistic characteristics (i.e. medieval centres builded on or near particular landforms), instead of scientific attributes (rare landforms or morphogenetic processes). Furthermore the socio-economic aspect could be the predominant one (i.e. eno-gastronomic itineraries or local craftsmanship). To this end the studied geomorphosites are focused in the Umbria Region where the three attributes are presents in different ways in each one. The opportunity to infer a specific range of values (from one to three/ null to high) for each attributes related to the geo-database allows to build queries. These last mentioned are used to divide geomorphosites in peculiar features selected by attributes to solve different requests linked to tourist expectations. Different tools, specific of GIS, allow to join the selected geomorphosites to roads network present inside the project as a specific layer.