Un Archivio dati di Indici specifici per la valutazioneintegrata del valore pastorale

This paper reports an analysis of the possibility of integration of different methodologies for the assessment of the agronomic value of rangelands, aimed at supporting decisions for their sustainable management, that is the long term preservation of their productive potential. The attribution of an agronomie value (Specific index) to each vegetal entity of a given rangeland (i.e. genus, species and subspecies), can be relevant far studies aimed at a preliminary evaluation of their productive potential. It can be also considered a first step for the exploitation of data already available from studies made with different approaches (e.g. phytosociological tables). The Specific indices of each species are classified by geographic area and take into account of synonyms and of the correct name of the most widespread entities of the Mediterranean area. The article is completed by a data base file containing a collection of the Specific indices of 1796 entities attributed by different authors that used the Grazing Value method in a range of environments in the Mediterranean area.