湿地公园生态敏感性评价研究——以盐城珍禽湿地公园为例

Ecological Sensitivity Evaluation of Wetland Park: A Case of Yancheng Rare Birds Wetland Park

以盐城珍禽湿地公园为研究对象,在进行基地生态环境调查基础上,选择5个有代表性的生态因子,借助ArcGIS的空间分析功能,利用层次分析法生成5个生态因子相应的评价结果图,即植被类型图、植被盖度图、水体污染程度图、土壤盐度图、不透水层比例图,最终通过加权叠加得到综合生态敏感性分布图。结果表明:盐城珍禽湿地公园生态敏感性整体较高。高度敏感区约3.85km2,占研究区的76.5%;中度敏感区约0.82km2,占研究区的16.2%;低度敏感区约0.37km2,占研究区总面积的7.3%,同时根据生态敏感性分析结果对盐城珍禽湿地公园的生态保护与环境建设提出建议。

The study takes Yancheng Rare Birds Wetland Park as an example. Based on ecological environment research, the paper chooses representative ecological factors, and 5 ecological factors were generated by means of ArcGIS space analysis, factor overlapping method and analytic hierarchy process. The ecological factors included vegetation types, vegetation coverage, water pollution degree, soil salinity, and impervious surface percentage. The analysis was made by using the multifactor weighted summation model, and the result showed that： the high sensitivity zone covered an area of 3.85km2, accounting for about 76.5%; the moderate sensitivity zone was about 0.82km2, accounting for 16.2%; and the low sensitivity zone covered an area of 0.37km2, accounting for about 7.3%. As a whole, the site had a high sensitivity. And according to the evaluations, the paper proposed some suggestions on the protection and construction of Yancheng Rare Birds Wetland Park.