中文摘要：

以县域（含县、县级市）为研究单元,采用标准差、变异系数以及多指标分析法对2000—2009年中原经济区县域经济发展的时空差异进行了初步分析。结果表明：从时间上看,中原经济区县域经济的绝对差异呈不断扩大趋势,相对差异呈现波动变化趋势。从空间上看,以2005年和2009年两个断面,研究发现中原经济区的县域经济发展综合水平大致呈现西北高、东南低的发展格局。县域经济发展综合程度的高水平、中高水平县（市）主要分布在京广线以西的河南省中部、西北部地区、江苏省徐州市、山西省长治市和晋城市的大部分;中低水平和低水平的县（市）呈环状不规则分布于高水平、中高水平县（市）的外围地区。即河南省的南部、东部、东北部和西南部,安徽的淮北、亳州和阜阳,湖北的襄阳以及山东的菏泽等地。

英文摘要：

Taking the counteies （including counties, county- level cities） of central plain economic zone as the study object, this paper analyzed the spatial - temporal pattern of economic differences in central plain economic zone from 2000 to 2009 by ways of coefficient of variation and standard deviation. The following conclusions were found. From the time, an absolute difference of county economy was growing trend, but at the same time rela- tive difference fluctuated trend in the central economic zone. From space, through the pictures which showed the spatial difference of county＇s econom- ic development level of central plain economic zone in 2005 and 2009 had a development pattern for northwest high and southeast low. The counties with high and medium high economic level was mainly distributed in middle and northwest of Henan Province in the west of Jingguang Railway, Xuzhou, Changzhi and Jincheng. Low level and medium low level of counties showed cricoid irregular distributed in high level and medium high level counties of the outer area ： the south, east, northeast and southwest of Henan, Huaibei and Haozhou and Fuyang of Anhui, Xiangyang of Hubei, Heze of Shandong.