基于生态安全格局的公园城市建设分析

“公园城市”的提出是以生态文明为引领实现美丽中国目标的体现,也是探索城市发展规划格局的全新升华。以“公园城市”的首提地成都为例,综合使用MCR模型等构建生态阻力面并提取生态廊道,并对当前成都生态安全格局进行空间耦合匹配分析,结果表明:(1)研究区生态源地主要集中在西部和北部,多以林地为主,其余生态源地分布较为分散,以水体和湿地为主。(2)生态重心主要向西倾斜,且城市生态格局受地形等的影响呈南北走向,城市主城区尚有生态潜力较大区域。(3)生态节点之间连通性尚有待加强,需进一步开发和完善环城、环湖等城市绿化系统,加强生态景观之间的连通性。

Research on Park City Construction Based on Ecological Security Pattern

The proposal of park city is the embodiment of the goal of realizing a beautiful China led by ecological civilization,and it is also a brand-new sublimation of exploring the pattern of urban development planning.Taking Chengdu,the first city of park city,as an example,the ecological resistance surface was constructed and the ecological corridor was extracted by using MCR model comprehensively,and the current ecological security pattern of Chengdu was analyzed by spatial coupling matching.The results showed that:(1)The ecological sources of the study area are mainly in the west and north,and they are mainly forest lands,while the other ecological sources are scattered,and they are mainly water bodies and wetlands.(2)The ecological center of gravity is inclined to the west,and the urban ecological pattern is in a north-south direction under the influence of terrain,and there are still large areas of ecological potential in the main urban area.(3)The connectivity between ecological nodes still needs to be strengthened,and urban greening systems such as those surrounding cities and lakes need to be further developed and improved to enhance the connectivity between ecological landscapes.