中文摘要：

采用探索性空间分析的定量研究方法以及标准差和变异系数两个指标，基于中国835个省际边缘县域1992-2012年多年份人均GDP数据，从全国、地带和省区三个尺度探讨了中国省际边缘县域经济差异的时空演变规律。结果表明：全国尺度上，省际边缘县域经济水平在1992、2002和2012年3个时间节点上存在显著的空间自相关性且有所增强，空间关联类型总体格局稳定，集聚特征明显，空间自关联类型的格局演变反映了中国经济扩散与经济梯度的空间转移；东、中、西三大地带尺度方面，地带内部省际边缘县域的差异大于省区间的差异且发展趋势一致，地带间的省际边缘县域经济差异和演化趋势具有显著的梯度性，地带间省际边缘县域的经济差异大于省区间的差异，三大地带省际边缘县域经济绝对差异逐渐扩大，相对差异中、西部地带有扩大趋势；省区尺度上，省际边缘县域与省区经济发展平均水平的差异显著增大，绝对差异的增长具有明显的阶段性，根据经济差异的发展趋势可分为四种类型。在经济差异的形成机理方面，影响因素可以分为资源环境、历史基础、人文要素、区域政策等一般因子和空间近邻效应、省际边缘区位等特殊因子。

英文摘要：

Provincial border counties are special regions of China. Their economy development has become a very significant issue to both academic enquiry and government policy. Based on many years＇ data of 835 counties at the index of per capita Gross Domestic Product from 1992 to 2012, with the aids of Standard Deviation and Variable Coefficient as well as exploratory spatial data analysis methods, the paper discussed temporal-spatial evolution characters of China provincial border counties economic disparity from three scales of province, belt and the country. Results show that： （1） at the scale of the country, the economic level of provincial border counties auto-correlated dramatically and strengthened at the three time point of 1992, 2002 and 2012. The pattern of spatial autocorrelation types was stable overall and agglomerated obviously. （2） at the scale of east, middle and west belt, the economic disparity of provincial counties inner belt was larger than provinces in the zone, and has the same development tendency. The economic disparity and evolution trend of provincial border counties among belts had the significant gradient. The economic disparity of provincial border counties was larger than economic differences of provinces among belts. The absolute economic disparity of provincial border counties in three belts expanded gradually, the relative disparity has the trend of expanding in the middle and west zone. （3） at the provincial scale, the economic disparity between provincial border counties and province have widened obviously. Absolute differences increased distinct periodically. Provinces should be divided into four categories according development tendency of provincial border counties economic disparity. The pattern evolution of spatial autocorrelation types reflected the economic diffusion and economic gradient transfer in China. In terms of formation mechanism of the economic differences, influential factors can be divided into two kinds, general and special. The former includes resour