Abstract:

The metropolitan area is a key link between big cities and urban agglomerations in the new urban pattern. This paper analyses the spatial heterogeneity and obstacles of the high quality development of counties in Hefei metropolitan area from 2011 to 2021 by constructing an evaluation index system for the high quality development of counties in Hefei metropolitan area, and applying entropy-weighted TOPSIS method, spatial autocorrelation model, and obstacle degree model. The results show that: ① the high-quality development of Hefei metropolitan area counties from 2011 to 2021 is generally characterised by the spatial distribution of "core-edge"; from the sub-system level, the economic system shows spatial polarisation, the innovation development is characterised by the spatial distribution pattern of "south high and north low", and the coordination system development shows a spatial distribution pattern of "south high and north low". distribution pattern, the development of coordination system is "high in the east and low in the west" spatial distribution pattern, the spatial distribution pattern of the green system is evolving, the open system is spatially clustered, and the spatial clustering feature of shared development is becoming more and more significant. ② The global Moran value of the level of high-quality development of counties in Hefei metropolitan area is positive in 2011-2021, and the overall trend is upward; the spatial correlation of all types of counties is strong, with clustering characteristics, and the spatial heterogeneity of the level of high-quality development among counties is larger, with more significant spatial distribution characteristics. ③ The high quality development of Hefei metropolitan area counties in 2011-2021 is mainly restricted by the economic system at the system level, while the obstacles of the coordination system and the sharing system are increasing; in 2021, the indicator level is mainly affected by the five major factors, namely, total exports, GDP per unit area, energy conservation and environmental protection expenditures as a percentage of fiscal expenditures, per capita disposable income of rural residents, and the number of permanent residents per unit area.

Key words: high-quality development, spatial heterogeneity, diagnosis of barrier factors, Hefei metropolitan area

摘要：

都市圈在新型城镇格局中是连接大城市和城市群的关键环节。本文构建合肥都市圈县域高质量发展评价指标体系，运用熵权TOPSIS法、空间自相关模型和障碍度模型，对2011—2021年合肥都市圈县域高质量发展的空间异质性及障碍因子进行分析。结果表明：①研究期内，合肥都市圈县域高质量发展总体呈“核心-边缘”空间分布特征；从子系统层面看，经济系统表现出空间极化特征，创新发展呈“南高北低”空间格局，协调系统发展呈“东高西低”空间格局，绿色系统空间格局不断演变，开放系统呈空间集聚特征，共享系统的空间集聚特征愈发显著。②合肥都市圈县域高质量发展水平全局莫兰指数在研究期内均为正且整体呈上升趋势；各类型县域空间关联性强，具有集聚特征，各县域间高质量发展水平空间异质性较大，空间分布特征较显著；③2011—2021年，合肥都市圈县域高质量发展在系统层面上主要受制于经济系统，同时协调系统与共享系统的障碍度日益增强；2021年在指标层面上主要受出口总额、单位面积GDP、节能环保支出占财政支出占比、农村居民人均可支配收入和单位面积常住人口数5个因素的影响。

关键词: 高质量发展, 空间异质性, 障碍因子诊断, 合肥都市圈