First results of a vegetation survey on the Fucecchio Marsh, an area showing a deeply transformed plant landscape compared to the past.

First results of a vegetation survey concerning aquatic and marshy vegetation of the area are presented. The preliminary data analysis showed that, with respect to past vegetational and floristic data, a large part of the aquatic and marsh plants of relevant conservation value have disappeared or have greatly reduced their diffusion, in favour of alien species, which have also become an important or predominant component in plant communities.