Harmonious Development of Utilization and Protection of Tidal Flats and Wetlands-A Case Study in Shanghai Area

Spatial,environmental,and material resources are important for tidal flats and wetlands,thus,a harmonious balance between utilization and protection should be maintained.In the present study,the concept of tidal flat is defined,and its spatial limitation is also clarified. Located at the Yangtze Estary,tidal flats in Shanghai area are selected for study.The relationship between water discharge and sediment transport of the Yangtze River,allowed exploration intensity and needs for wetland protection are discussed in the aper.The dynamic process and changing trend for different types of tidal flats are illustrated in detail.Regulations are proposed for a reasonable exploitation,dynamic protection,and ecosystem restoration of each individual tidal flat and wetland.Some valuable suggestions are put forward for further study about the sustainable exploitation of offshore resources in Shanghai area.