Spatio-temporal Analysis of Country Economic Differences in Central Plain Economic Zone

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 relative difference fluctuated trend in the central economic zone.From space,through the pictures which showed the spatial difference of county′s economic 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.