coastal lagoon
5.In 1984,the Italian Government initiated a US $ 4 5 billion environmental engineering project to safeguard Venice and its lagoon, involving installation of mobile barriers across the lagoon inlets,reinforcement of coastal defenses and jetties,reconstruction of lagoon marshlands and sea grass beds,and pollution control,part of which has achived success.
6.According to the contrast between different maps and the dynamical conditions, the area of Bohe Lagoon had reduced by 45.3% from 1932 to 2000 and human activities in the coastal zone, such as inning, sand dredging and aquiculture, have brought great effects on the coastal system, which has accelerated the barrier erosion and lagoon evolvement.

