The distribution areas of mangrove forest in Guangxi are located on the north tropical Zone, from 21°24′to 21°54′N. There are 22 species of mangrove plants belonging to 21 genera and 14 families. In the intertidal zone, the mangrove plants for establishing communities are mainly Auicenuia matina, Kandelia candel, Aegiceras curniculahiue, Rizopphura stylusu and Bruguiera gymnurrhiza. The geographical distribution(from east to west)of the mangrove plants is restricted by winter temperarure and fresh river di...