Come implementare la conoscenza floristico vegetazionale in Lombardia? la banca dati degli habitat di interesse comunitario (Direttiva 92/43/CEE).

“How to implement the floristic-vegetational knowledge in Lombardy? The database of the habitats of community interest (Directive 92/43/EEC)”. This research outlined the synthesis of knowledges from the database concerning the phytosociological relevés about habitats of community interest (Directive 92/43/EEC) in Lombardy. The database included 4730 relevés (representing 54 habitats), of which 98.1% were geolocated in Lombardy and 25.0% were unpublished. By means of two criteria, i.e. the number of relevés and their distribution on the regional territory, the status of knowledge was defined and the knowledge gaps were recognized for each habitat. Data analysis detected which groups of habitats included the highest portion of conservation value species and in which habitats neophytes mostly affected the physionomy of vegetation. At last, we identified habitats more affected by specific pressure factors.