长江经济带城市规模与城市宜居性的时空演化及适配关系  

Spatio-temporal evolution and adaptation relationship between urban scale and urban livability in the Yangtze River Economic Belt

作　　者：贺小荣[1] 石彩霞 周国华[2] HE Xiaorong;SHI Caixia;ZHOU Guohua(College of Tourism,Hunan Normal University,Changsha 410081,China;College of Geographical Science,Hunan Normal University,Changsha 410081,China)

机构地区：[1]湖南师范大学旅游学院,长沙410081 [2]湖南师范大学地理科学学院,长沙410081

出　　处：《地理研究》2024年第7期1769-1789,共21页Geographical Research

基　　金：国家社会科学基金后期资助项目(21FGLB070);湖南省自然科学基金项目(2022JJ30387);湖南省十四五重点学科(地理学)建设项目(5010002)。

摘　　要：科学诊断城市规模与城市宜居性的适配关系,对促进区域高质量发展、优化城市人居环境具有重要意义。基于2010—2020年长江经济带108个地级以上城市的面板数据集,通过解析城市规模和城市宜居性的适配机理与适配过程,构建两系统的评价指标体系,运用核密度估计、空间变差函数等方法刻画其时空演化特征,并通过空间重心模型、综合适配模型等方法分析两系统的多维适配关系。结果表明:(1)研究期内,长江经济带城市规模指数和城市宜居性指数均呈波动上升态势,长江下游城市规模增长速度较快,长江上游城市宜居性较高。(2)长江经济带城市规模和城市宜居性的空间结构差异有所改善,空间自组织性不断加强,城市内部非均衡性结构特征明显。上海、南京、苏州是城市规模极化中心,重庆、成都城市宜居性优势明显。(3)长江经济带城市规模与城市宜居性的重心移动间距逐渐缩小,说明系统间的绝对差距日益敛缩,区域发展格局更加平衡和可持续。总体来看,研究区适配类型由研究初期的较不适配逐渐转变为基本适配、中度适配,长江下游实现由“较不适配—基本适配—中度适配”状态的过渡,长江上游、长江中游的部分城市适配水平有待提升。The scientific diagnosis of the multi-dimensional adaptation relationship between urban scale and urban livability is of great significance for promoting regional high-quality development and optimizing the urban living environment.Based on the panel data sets encompassing 108 cities above the prefecture level in the Yangtze River Economic Belt(YREB)spanning from 2010 to 2020,this paper delves into the mechanism and the process underpinning the adaptation relationship between urban scale and urban livability,constructs a comprehensive evaluation index system for both systems,utilizes the methods such as kernel density estimation and spatial variability function to characterize the spatial and temporal evolution of these systems,and analyses the multi-dimensional adaptation relationship between urban scale and urban livability by using the spatial gravity model,and the integrated adaptation model.The results show that:(1)Throughout the study period,both the urban scale index and the urban livability index in the YREB exhibit a fluctuating upward trend,cities in the lower reaches of the Yangtze River consistently maintain a leading position in terms of expansion,and cities in the upper reaches are found to be more livable.(2)The spatial structure difference between urban scale and urban livability in the YREB has narrowed.The spatial selforganization of two systems is becoming more and more prominent,and there is a notable imbalanced structure within the cities.Cities such as Shanghai,Nanjing and Suzhou merge as the polarization centers of urban scale,and Chongqing and Chengdu have obvious advantages in terms of urban livability.(3)In the YREB,the distance between the center of gravity of urban scale and urban livability gradually decreased.This convergence is reflected in the decreasing absolute disparities among two systems,indicating a more balanced and sustainable development pattern in the region.The type of adaptation has gradually changed from extreme inadaptation and less adaptation at the beginning of the

关 键 词：城市规模 城市宜居性 适配关系 空间变差函数 长江经济带 

分 类 号：F299.27[经济管理—国民经济]