The soil province feature of Italy at the 1:1,000,000 scale

Updated version of the feature Soil province of Italy at the 1:1,000,000 scale. The original geodatabase (version 1.0 - https://zenodo.org/record/7072306) is not replaced because collecting other features debribed by references. This version partially becomes observations raised by regional officiers of Regione Emilia Romagna and Regione Veneto: few map units have been splitted in order to better conform to regional features. This new map reports 51 map units.