基于GIS的济西国家湿地公园生态敏感性评价

Ecological Sensitivity Assessment of Jixi National Wetland Park Based on GIS

本文以遥感(RS)和地理信息系统(GIS)为技术支撑,通过特尔斐专家评价法,建立了湿地公园生态敏感性综合评价指标体系,对济西国家湿地公园进行了生态敏感性评价。结果表明:水域湿地、植被类型为高度敏感因子,高程、植被覆盖度、景观格局、景观生态价值为中度敏感因子,坡度为弱度敏感因子;湿地公园综合生态敏感度划分为高度敏感、中度敏感、弱度敏感、不敏感4个等级,面积占比分别为32.5%、18.2%、28.2%、21.1%,高敏感区与中敏感区集中分布于水库、滩涂、水渠及周边区域内;湿地公园综合生态敏感度属于中度敏感。

The wetland park is called the“kidney of the city”,which is the core and main body of the urban wetland,and has an important ecological protection and detoxification function.Wetland park ecological sensitivity assessment is the basic premise and important method of wetland park ecological planning.With RS and GIS as the technical support,the comprehensive evaluation index system of the wetland park was established for the ecological sensitivity evaluation of Jixi National Wetland Park.The results show that water wetland and vegetation type are highly sensitive factors,elevation,vegetation coverage,landscape pattern and landscape ecological value are moderate sensitive factors,and slope is low sensitive factor;the comprehensive ecological sensitivity of wetland park is divided into four grades:highly sensitivitive,moderately sensitivitive,low sensitivitive,Insensitive,with area proportion of 32.2%,18.2%,28.2%and 21.1%,highly sensitive area and moderately sensitive area are distributed in reservoirs,flats,canals and surrounding areas;the comprehensive ecological sensitivity of wetland park is moderately sensitive.