Investigating Territorial Specialization in Tourism Sector by Ecosystem Services Approach

From the beginning of the 21st century, following major European and global initiatives such as the Millennium Ecosystem Assessment and the Economics of Ecosystem and Biodiversity, the idea that Ecosystem services could be used as a decision support tool, gained considerable importance in several fields: from economy to public policy, from territorial planning to environmental assessment. This research is part of the methodological framework of an important strategic reference: the Millennium Ecosystem Assessment, an international project that defines ecosystem services and assesses the consequences of ecosystem change for human well-being. According to the MA, ecosystem services are grouped into four categories: supplying services, regulation services, cultural services, and support services. Starting from this, the present work contributes to build interpretative models for the evaluation of a relevant part of the fourth class of ecosystem services: the territorial touristic attractiveness. The InVEST model, an open source toolkit, has been applied to assess attractiveness of the Basilicata Region considering both natural and cultural heritage in order to highlight strengths and weaknesses of the investigated methodology.