Identification and Management of the Ecological Importance of Tidal Flat Based on the Importance of Ecological Service Functions and Ecological Fragility
The identification of ecological importance is the basis of regional ecological protection and the main basis for the selection of ecological protection red lines.In this paper,the impor-tance identification method of ecological service function is proposed from three aspects of biodi-versity maintenance,species life history particularity and ecological service function importance,and then the ecological vulnerability evaluation index and evaluation method are constructed from three dimensions of exposure,sensitivity and adaptability.Finally,based on the importance and vulnerability of ecological service function,the identification method of ecological importance of tidal flat is constructed.Taking tidal flat of Jiangsu as the research area,the ecological impor-tance of tidal flat is evaluated,and the suggestions of zoning management and control are put for-ward.The results show that the area of the ecologically important area is 704.74 km2,account-ing for 13.56％of the tidal flat area,and the area of ecologically important area is 1 865.07 km2,accounting for 35.90％of the total tidal flat area.The ecologically important tidal flat areas in Jiangsu Province show a distribution pattern of"one belt and one area".According to the ecologi-cal importance,the study area is divided into core area,buffer area,restoration area and preven-tion area.In principle,all human activities are prohibited in the core area.The buffer zone only allows limited human activities.The restoration of damaged ecology should be strengthened in the restoration area.The prevention area should implement coordinated protection to prevent ec-ological damage.
tidal flatoceanecological importanceecological service functionecological fragility
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万方数据
