Constructing ecological security pattern in Jianghuai Plain:taking Taizhou city,Jiangsu province as an example
This paper takes Taizhou city in the Jianghuai Plain region as the research area,and the importance of ecosystem services is evaluated from three aspects of biodiversity conservation,water conservation and soil and water conservation,and the ecological source area is collected combined with ecological sensitivity evaluation.And also important ecological source area in the region is identified and judged through the landscape connectivity pattern.Through the establishment of ecological resistance surface and the identification of key ecological corridors and nodes in Taizhou city,the ecological security pattern of Taizhou city is constructed by using the node-corridor-source model.The results show that,there are 146 ecological source areas in Taizhou,covering an area of 868.11 km2,accounted for 15%of the total land area.The length of ecological corridors is 320.30km,including 8 important ecological corridors,with a characteristic of being dense in the south and sparse in the north.There are 22 ecological nodes,mainly distributed in the central and southern regions.Finally the scattered ecological security pattern of multiple source,multi-node,framed-shaped corridor in Taizhou is determined.
ecological source areaecological corridorecological nodeecological security patternTaizhou city
NETL
NSTL
万方数据
