重心转移视角下新型城镇化与生态足迹时空差异及其耦合关系研究——以四川省为例

在生态文明建设理念下，如何实现新型城镇化与生态环境的协调发展已成为我国亟待破解的重大难题。以快速城镇化的四川省为研究对象，运用重心耦合模型，对2005～2015年新型城镇化与生态足迹的时空演变、转移路径及空间耦合特征进行分析。结果表明：(1)四川省城镇化与生态足迹水平均呈现持续增长态势，时空差异明显，新型城镇化水平呈现出盆地中部高，由内至外逐层降低的圈层式分布格局，生态足迹水平呈现出以攀（枝花）成（都）绵（阳）为轴线，西北低、东南高的对称式分布格局；(2)新型城镇化重心持续北移、移动幅度较小、规律性明显，生态足迹重心先南移后向北回撤、移动幅度较大、规律性较差；(3)新型城镇化与生态足迹的空间重叠性呈现先靠近后分离再靠近的波动态势，变动一致性由相反到趋同，空间耦合趋势显著。

Spatio-temporal Differences and Coupling Relationship Between New Urbanization and Ecological Footprint from the Perspective of Gravity Transfer:A Case Study of Sichuan Province

Under the concept of ecological civilization construction,how to realize the coordinated development of the New-type urbanization and ecological environment has become a major problem need to be solved urgently.This paper selected Sichuan Province in rapid urbanization as the research object,analyzed the spatial and temporal evolution of New-type urbanization and ecological footprint in 2005-2015 by the model of gravity coupling model.The results showed that:①The level of New-type urbanization and ecological footprint both showed a sustaining growth,but the spatial and temporal differences between them were obvious.The New-type urbanization level presented a Circle layered distribution pattern,high in the middle of the basin and reducing from inside to outside.The ecological footprint level presented a symmetrical distribution pattern,Pan (zhihua) Cheng(du) Mian(yang) as the axis,low in the northwest half and high in the southeast half;②The gravity center of New-type urbanization continued moving northward,slighdy and regularly.While the gravity center of ecological footprint shifted southward and then retreated to the north,dramatically but unregularly;③The spatial overlap of the New-type urbanization and ecological footprint presented a fluctuation of separation and approaching,the change consistency was from opposite to convergence,and the spatial coupling trend was significant.