Variazione di alcuni indici fitoclimatici osservati a Cagliari dal 1892 al 2002

Abstract

Analyzing the thermopluviometric data of Cagliari from 1892 to 2002, have been processed the most important phytoclimatic indices reported both to whole time and to five equivalent periods. The achieved results, confirmed by the all calculated indices, point out a shifting towards conditions of greater dryness, more obvious in the last years, determining in the local floras an increase of annual species