Ecological network construction is helpful to integrate broken green patches,identify key areas in the process of territorial ecological restoration and formulate targeted measures,and provide methods and technical support for ecological territorial space consolidation.However,the current single spatio-temporal scenario ecological network constructed based on the current situation of natural resources and land use ignores the dynamic changes of network and urban development,its stability and connectivity lack verification feedback,the reasonable network optimization plan for urban development is still unclear,and ecological protection measures are difficult to adapt to the future urban spatial development and change.On the basis of constructing the existing ecological network,the paper forecasts the future urban land use expansion,and sets up three network optimization scenarios from the perspective of ecological source,corridor and dynamic restoration of nodes,including increasing ecological stepping stones,removing ecological obstacles,and protecting key ecological pinch points.The optimization effect of three restoration scenarios is evaluated by network connectivity analysis.The results show that the elimination of ecological obstacles in the three restoration scenarios has the most obvious effect on the optimization of ecological network,and it is the main direction of the construction and optimization of ecological network in the future.Taking Tongcheng County as an example,the paper determines the best optimization plan of ecological network,and puts forward the ecological security pattern that adapts to the current regional characteristics and faces the future development direction.From the perspective of dynamic succession of ecological resource elements and urban development,this study provides new ideas for ecological pattern optimization and scientific and technological methods for ecological comprehensive consolidation of territorial space.
关键词
风景园林/生态网络/MSPA/情景模拟/生态安全格局/国土空间生态修复
Key words
landscape architecture/ecological network/MSPA/scene simulation/ecological security pattern/ecological restoration of national space
维普
万方数据