Analysis on the Temporal and Spatial Changes of Central Plains Economic Region——From the Perspective of Urban Flow Intensity
以中原经济区28个城市为对象，用城市流强度模型分析2000-2009年时空演变，发现区域仍处发展初期，空间关联松散，郑州溢出效应初现，空间格局北高南低、东高西低。
The thesis takes the Economic Zone of central China as the study area,choosing the years 2000,2003,2006 and 2009 as the time sections.The study applies the degree of urban flow as the model to measure 28 cities of the Economic Zone of central China.The paper then divides the degree of urban flow of the 28 cities into 15 categories according to the results deriving from the Q method of clustering.Meanwhile the spatial and temporal evolution rules of the degree of urban flow are analyzed.The results show that the central China region still remains at the early stage of development.Each department has relatively weak external service ability,small overall agglomeration and radiation capacity and loose spatial association.The absolute difference of urban flow degree is growing and the relative difference is decreasing with time,and great gaps exist among the cities in terms of the development level and overall ability.As the center of the high-degree urban flow in the central China Economic Zone,Zhengzhou is reducing the gradient difference with the outer cities of the region and the overflow effect is emerging as the core city of the Economic Zone.In terms of the spatial evolution,there is an overall stability in the spatial pattern,with north and east higher and south and west lower.Regional advantage has a great impact on the degree of urban flow,while the higher degree of urban flow of Xuzhou is closely related to its special developing environment.