PHYSICAL CONDITIONSTHE CHONGMING DONGTAN WETLAND:AN OVERVIEWBOIVERSITY OF THE CHONGMING DONGTAN WETLANDPLANTSMAJOR PLANT COMMUNTIESSUCCESSIONAL PATTERN OF INTERTAL PLANTCOMMUNITIESANIMALSWATERBRSTHE SEASONL ARIATION OF THE BR COMMUNITIESTHE MAJOR HABITATS FOR BRSTHE MIGRATION ROUTES FOR SHOREBRSREFERENCES