Abstract:The middle part of Jiangsu coasts, with a width of 200 km sheltered by a large radial sandbank (or tidal current ridge) system of the southwestern Yellow Sea, are characterized by aggradational muddy substrate which supports a variety of densely distributed halophytic plants. The intertidal mudflat is plane with an average gradient of 0.2%. The halophytic plants succession and associated soil show a zonal spatial distribution from the bank to the sea. In addition, both the introduce of Spartina alterniflora...