Last century valley floor modifications of the Trigno River (Southern Italy): a preliminary report

Abstract

The recent evolution and present dynamics of the Trigno river was investigated by analysing morphological features and changes with time of the main channel system and the associated floodplain. The study allowed to point out in particular for the last decades significant modifications of the channel pattern and a marked reduction of the floodplain width, accompanied by a progressive valley floor terracing due to channel bed lowering. Analyses of possible controls on river behaviour, both natural and human-induced, allowed to advance some hypotheses about the relationship between the modifications of external conditions and river processes in the study area.