新型城镇化视角下城市土地扩张与人口增长耦合态势研究——以长江中游城市群为例

Research on the Coupling Situation of Urban Land Expansion and Population Growth from the Perspective of New Urbanization:A Case Study of Urban Agglomeration in the Middle Reaches of the Yangtze River

基于2000—2019年建成区面积和城区人口,运用总体耦合态势模型、空间耦合特征模型等方法,对长江中游城市群28个城市的土地扩张与人口增长之间的总体耦合态势和空间耦合特征进行分析,研究结果表明:在时间维度上,长江中游城市群城市土地扩张速度远高于人口增长速度,但在空间维度上二者的增速呈显著的空间吻合特征;长江中游城市群城市土地扩张与人口增长耦合态势呈现出“扩大—缩小”演变特征,两者的耦合关系不断增强,但是现阶段以人口快速增长型为主,人地耦合协调度低。最后提出发展对策:控制城市土地快速扩张,引导人口有序流动,促进人地协调配置;促进“三角形”空间格局均衡发展,推进区域协调统一;加强生态文明建设,实现绿色城镇化发展。

Based on the built-up area and urban population from 2000 to 2019,this paper analyzes the overall coupling situation and spatial coupling characteristics between land expansion and population growth of 28 cities in the middle reaches of the Yangtze River urban agglomeration by using the methods of overall coupling situation model and spatial coupling characteristics model.The results show that:Firstly,in the time dimension,the land expansion speed of the middle reaches of the Yangtze River urban agglomeration is much faster than that of the urban agglomeration.Secondly,the coupling situation of land expansion and population growth in the middle reaches of the Yangtze River urban agglomeration presents the evolution characteristics of“expansion and contraction”,and the coupling relationship between the two is increasing,but at the present stage,the rapid growth of population is the main type,and the coupling coordination of people and land is low.Finally,this paper puts forward some development strategies including controlling the rapid expansion of land,guiding the orderly flow of population,promoting the coordinated allocation of people and land;improving the balanced development of“triangle”spatial pattern,accelerating regional coordination and unity;strengthening the construction of ecological civilization,and materializing the development of green urbanization.