THE RESEARCH ON COASTAL WETLAND UTILIZATION AND SUSTAINABLE DEVELOPMENT IN YANCHENG,JIANGSU PROVINCE

With the increase of population and development of economy along coastal wetland in Yancheng,the extent of wetland utilization becomes more intensely.Based on the macroscopic analysis from the time variation and the spatial difference angle to present situation of the seacoast wetland resources utilization in Yancheng city,ecology effect that water environment and biodiversity are influenced by wetland resources utilization is specifically analyzed in the paper.And the result indicated that water quality unceasingly worsens and biodiversity receives serious threat,the coastal wetland landscape mottling number increases,and the average mottling area reduces,and the broken degree enlarges.Subsequently,the ecological cybernetics measures are proposed as follows: ecological planning and design,ecological industry and ecosystem management and so on.The irrationality utilization of seacoast wetland resources is existence,and the ultimate purpose is to provide an effective model and measure for coastal wetlands utilization,and to diminish multiple kinds of environment pressure and to realize sustainable utilization of coastal wetland resources in Yancheng.