Riflessioni sull'alluvione e sugli altri fenomeni fluviali, anche a margine della riforma apportata dalla l. 37/1994

The essay deals with acquire of ownership by fluvial activity in Roman Law, with particular reference to adluvio. The topics herein studied are natural description of fluvial events in Roman law sources (quite complex on adluvio), their juridical nature (increase or in some cases decrease of land that borders with a river), legal effects of them (acquisition of property ipso iure by the land owner rather as a juridical acquire iure gentium than as a mere physical increase of land with no legal matters related to it, also in case of adluvio and of the phenomenon later called avulsio in legal tradition), condition of lands where fluvial acquires could take place. A glance is also given to modern regulation of French and Italian code about fluvial phenomenon as well as to the reform carried out in Italy in 1994. Taken into account this new enactment, massive trouble of distinguishing «incrementi» in 941 Italian civil code article (heritage of Bartolus’ doctrine) from the kind of adluvio ruled in 942 Italian civil code article, with different rules of law (private property in art. 941, public property in art. 942), is underlined: a solving solution is proposed.