中文摘要：

由于在认清城市与腹地、城市与城市之间相互关系方面具有独特优势,城市影响范围成为目前中国区域研究的热点。本文从城市影响力指数及区域可达性两方面对传统的场模型进行改进,更为合理地界定出城市影响范围。以中国中部地区1990、2000、2007年3个年份的研究为例,研究城市影响范围的动态演变特征。在此基础上,重点从空间形态演变方面提炼出城市影响范围演变的3大阶段及其对应的5种类型,并对各阶段城市的较快发展提出建议。从理论及实践层面对城市影响范围的研究进行了探索,以期为城市影响范围甚至区域相关问题的进一步研究提供帮助。

英文摘要：

Due to unique advantages in a clear understanding of the interrelationship between city and its hinterland,as well as city and city,the study on urban spheres of influence is becoming a highlight in regional research.This paper improves traditional field models in two aspects：the composite indicator and regional accessibility,in order to delineate urban spheres of influence more reasonably.Taking three years of central China as a case study,this paper investigates dynamic evolution of urban spheres of influence.Focusing on the evolution of spatial pattern,we abstract three stages and its corresponding five types theoretically.Finally,recommendation of development has been made for each stage.This study undertakes certain exploration in the study of urban spheres of influence from the perspective of theory and practice,which can provide some references for the studies in this field and other regional research.