摘要
通过对成渝地区双城经济圈各城市生态位特征进行研究,提出城镇体系优化策略,以实现区域高质量发展。本文从生态位理论视角出发,从资源、经济和社会三个维度,构建城市生态位测评指标体系,综合运用城市生态位宽度模型、重叠度指数模型和分异指数模型,测度2004-2018年成渝地区双城经济圈城市生态位宽度、分异指数、重叠度指数变化及特征,探讨城市群内部城镇体系结构特征,提出区域一体化协调发展策略,促进区域空间格局优化。其结果表明:(1)从城市生态位宽度来看:2004-2018年,成渝地区双城经济圈内各城市生态位宽度均有不同程度的提高,城市的综合发展水平与生态位宽度具有一定的同步性;(2)从城市生态位分异指数来看:在成渝地区双城经济圈2004年、2011年和2018年的三个阶段内,城市的资源、经济和社会生态位分异指数呈现逐渐上升趋势,且资源、经济与社会要素的空间不平衡日益加剧;(3)从城市生态位重叠度来看,以重庆、成都为代表的核心城市生态位重叠指数较高,且呈现出不断增大趋势,表明成渝地区双城经济圈内主要城市间产业结构趋同、同质化竞争较为激烈。
Based on the research on the niche characteristics of the cities in the Chengdu-Chongqing Economic Circle,an optimization strategy for the urban system is proposed to achieve high-quality regional development.From the perspective of niche theory,this paper constructs an urban niche evaluation index system from the three dimensions of resources,economy,and society.It comprehensively uses the urban niche width model,overlap index model,and differentiation index model to measure the changes and characteristics of urban niche width,differentiation index,and overlap index of the dual-city economic circle in the Chongqing area from 2004 to 2018,discuss the structural elements of the urban system within the urban agglomeration,propose a coordinated development strategy for regional integration,and promote the optimization of the regional spatial pattern.The results show that(1)from the perspective of the width of the urban niche,from 2004 to 2018,the niche width of each city in the Chengdu-Chongqing economic circle has increased to varying degrees,and the comprehensive development level and niche width of the town have a certain degree of synchronization;(2)from the perspective of the urban niche differentiation index:in the three phases of the Chengdu-Chongqing economic circle in 2004,2011,and 2018,the urban resource,financial,and social niche differentiation index showed an increasing gradual trend,and the spatial imbalance of resources,economy,and social factors is increasing;(3)from the perspective of urban niche overlap,the core cities represented by Chongqing and Chengdu have a higher niche overlap index,and they are showing an increasing trend,which shows that the industrial structure of the major cities in the Chengdu-Chongqing economic circle has become more homogeneous,and the competition for homogeneity is fierce.
作者
崔梦茹
侯兰功
何小勤
CUI Mengru;HOU Langong;HE Xiaoqin(School of Civil Engineering and Architecture,Southwest University of Science and Technology,Mianyang 621010,Sichuan,China;Huzhou University,Huzhou 313000,Zhejiang,China)
出处
《西南科技大学学报（哲学社会科学版）》
2022年第6期60-71,共12页
Journal of Southwest University of Science and Technology:Philosophy and Social Science Edition
基金
2019年度浙江省哲学社会科学规划课题重点课题:促进浙江省养老与健康产业融合发展的机制与对策,项目编号:19NDJC003Z。
关键词
生态位宽度
分异指数
重叠度
城市体系
成渝地区双城经济圈
niche width
differentiation index
degree of overlap
urban system
the Chengdu-Chongqing economic circle
