中文摘要：

基于人均、地均指标构成的经济密度综合指数，运用熵权灰色关联模型和聚类分析方法，对2000年以来中部地区整体、省域、市域经济密度的时空分异进行研究。结果显示：中部地区的整体经济密度2005年之前缓慢增长，2005年之后快速提升；省域经济密度呈现“河南湖北争先，山西湖南安徽力争第三，江西垫底”的局面；市域经济密度格局整体较稳，局部变动明显。总结中部地区整体、省域、市域经济密度的变化特点及成因，提出“一个支撑点，十个增长点、一个成长片区、两大增长带”的空间发展格局，并得出中部经济密度格局变化中自然基础因素、经济因素、社会因素等起了重要作用，且社会服务因素作用日益强化，自然基础作用日益弱化的结论。

英文摘要：

The economic density can reflex economic development level and the intensity of the economy, so the economic density can be regarded as the scale of the development of the modern city circle. Based on the comprehensive index of economic density, this paper gives a systematic study of spatial-temporal characteristic of economic density in Central China since 2000. The results show that, the economic density of Central China grew slowly before 2005, but it grew rapidly from 2005. The result indicates that the characteristic of the province economic density pattern can be summarized ＂Henan and Hubei compete, for the first rank, Anhui Hunan and Shanxi locate alternately in second rank, Jiangxi are in the last rank＂, the city economic density spatial distribution changes largely and its spatial pattern structure can summarized ＂one supporting point, ten growth points, one growth area, two growth belt＂. Based on these findings, the paper analyzes the reasons of the spatial-temporal characteristic of the economic density of Central China from the basic conditions, the economic factors, the social factors, the policy factors and so on.