Didactic value of reclaimed areas

Reclaimed areas have been realized in the first years of the 60ies from material which came from the digging of the Oil-tanker channel. The aim was to build artificial islands on which it should have spring up the third industrial area. This project was stopped by the Special Law no. 171/73: without this intervention, alla the salt marsh areas from Marghera to Chioggia would have disappeared.
These artifical structures are a clear example of the pressures to which the lagoon of Venice has been subjected: nowadays the industrial areas is not growing, but it is however a worrying presence in the lagoon, a reality to which in the last years has been paid a lot of attention and that is the object of projects and studies regarding the securing af some sites and the possible reorganization of some productions.
It's interesting to consider how an area, sprung up for industrial and productive purposes, has been developed in a natural site full of important species:
it's an environment in constant evolution, given it's recent origin.
Population dynamics make community composition change from one year to the other, above all regarding ground beetles. (Articolo Bollettino Museo, 49_1)
It's possible to introduce the following topics:
· Human intervention
· Renaturalization
· Historical changes of the Lagoon of Venice.