基于ESDA-GIS的福建省县域经济差异

Regional Economic Disparities in Fujian Province Based on ESDA and GIS

选取了1999-2014年福建省县域人均GDP统计数据作为经济差异研究指标,采用欧式邻近平均距离确定空间权重矩阵,基于ESDA-GIS分析福建省县域经济的时空特征以及动态变化.分析结果显示:根据Moran’s I值及显著性检验,其第5级临近平均距离(D5=62.749km)是带动福建省县域经济发展的最佳辐射距离,从WD5空间权重下的1999-2014年LISA聚类图,H-H型集聚数呈现增加后又递减,L-L型集聚数则逐渐减少,L-H型集聚数逐渐增多.其中,H-H型集聚主要集中在闽东南沿海的厦门市、晋江市等邻接县市;L-L型主要集中在闽西北地区的松溪县、建瓯市等邻接县市.自2011年后局部集聚随着交通等因素影响逐渐由闽东南往西北内部分区域辐射,呈对外扩张状态,县域经济差异有逐渐缩小趋势.

Taking statistics data on per capita GDP at the county level in Fujian province from 1999to2014 years as regional economic disparities index,continental close to average distance is used to determine spatial weight matrix,the analysis of spatial and temporal characteristics and dynamic changes at the county level in Fujian province based on ESDA-GIS show that according to Moran＇s I value and the significant test,it is found that the 5th level close to average distance（D5=62.749km）led the county level in Fujian province economic development of best radiation distance weight,in WD5 space weight from 1999 to 2014years LISA cluster figure,H-H-number of clusters increased after decrease,L-L type agglomeration number gradually reduced,L-H type agglomeration number gradually increased,among which H-H type agglomeration main concentrated in Fujian province of Southeast area（such as Xiamen city,Jinjiang city and other adjacent counties）;L-L-mainly concentrated in Fujian province of northern region（such as Songxi county,Jian＇ou county and other adjacent counties）,with the inflnence from trafic situation.The county level in Fujian province local cluster chart shows that regional economic disparities from the southeastern part of the region expanding to the northwest,county economic differences gradually have narrowed down since 2011.