Conclusions
Mangrove forests are very important ecosystems located in the upper intertidal zones of the tropics. They are the primary source of energy and nutrients in these environments. They have a special role in stabilizing shorelines, minimizing wave damage and trapping sediments. However, in recent decades mangrove forests in Vietnam have been threatened by conversion to agriculture and aquaculture. The primary objectives of this study were to define a minimum mangrove band width for coastal protection from waves in Vietnam.