Study on the Construction and Restoration Strategy of Ecological Network in Zhangzhou City Based on Ecological Conservation Red Line
Building an ecological network pattern based on the ecological conservation red line(ECRL)is of great significance for maintaining regional ecological security.Based on the ECRL,we identified the ecological sources by combining the landscape connectivity index.The Linkage Mapper model was used to extract ecological corridors and ecological nodes,constructing an ecological network in Zhangzhou city.Additionally,restoration measures were proposed.The results show that∶(1)the important ecological source area of Zhangzhou city is 1 715.20 km2,accounting for 13.61%of the city,showing the spatial distribution characteristics of high in four areas,low in the middle.There are 65 ecological corridors in total,including 36 primary ecological corridors with a total length of 243.78 km and 29 secondary ecological corridors with a total length of 550.37 km.(2)There are 11 ecological pinch-points in the city,scattered at the junction of districts and counties.There are 18 ecological barrier-points,mainly distributed in Changtai District and Pinghe County.There are 61 ecological break-points,which are concentrated in Nanjing County,Hua'an County and Zhangpu County.Through comprehensive analysis of the current situation and spatial distribution characteristics of land use in key areas of the ecological network such as ecological corridors and ecological nodes,combined with the ecological environment characteristics of Zhangzhou city,we propose graded and classified ecological restoration measures according to local conditions to provide decision-making support for the ecological protection and restoration of land space.
ecological conservation red line(ECRL)ecological sourceecological corridorLinkage Mapper modelecological restoration strategy
NETL
NSTL
万方数据
维普
