La valutazione della salute ecosistemica urbana: una integrazione tra MCDA e GIS

Resilience is defined as the capability of a system to remain stationary and keep its structure unchanged in case of external disturbances. With the aim of facing the resilience assessment, we propose the concept of “ecosystem health”, developed by Robert Costanza in the context of ecology and formed by three categories: 1) “vigor”, which measures the metabolism of the system; 2) “organization”, i.e. the number and diversity of interactions between the components of the system; 3) “resilience”, i.e. the ability of the system to remain stable after an external stress. An ecosystem is healthy when it is able to balance these three components. Translating these parameters from the environmental sphere to the urban one, the aim of this paper is to propose an evaluation approach of urban ecosystem health referring to the Metropolitan Area of Naples (Italy) and developing a Spatial Decision Support System, through the integration of the Multi-Criteria Decision Analysis (MCDA) with Geographic Information System (GIS).