Abstract: Abstract:With the aid of ArcGIS and GeoDA, the study measured by the index of PCGDP with the methods of Statistic analysis and ESDA. Spatial-temporal pattern and spatial interaction types of county-level economic disparities in Yangtze river Basin during 2001-2011 are preliminarily explored from three aspects:time series, spatial series and impact factors.The results showed:(1)the absolute difference within the Yangtze river basin in volatility to expand, the relative difference is narrowed;the economic development of velocity difference between sub-basins is obvious;Economic differences between the sub-basins presents a decrease trend with fluctuation,regional balanced development began to emerge.(2)the difference of economic development between the sub-basins in the space issignificant,the regional economic development level on the three major economic zones have a significantly differences;The spatial pattern of the economic hotspot area is relative stability in Yangtze river Basin,scope of core area shaped as a circular structures is spreading from east to west in Yangtze river Basin,scope of edge area shaped as a ring structures is decrease.(3)the regional development strategy is the most important factor of economic growth in Yangtze river basin,and give the most influence to the regional difference.

摘要： 摘要：利用传统统计方法和ESDA方法，在ArcGis和Geo Da等软件的支持下，以人均GDP为测度指标，从时间、空间及影响因子三个侧面对2001—2011年长江流域内各子流域经济差异及其演化进行了分析。结果表明：（1）长江流域内绝对差异在波动中持续扩大、相对差异有所缩小；子流域间的经济发展速度差异较为明显；子流域间经济差异呈现出在波动中缩小的趋势，区域均衡发展开始显现；（2）各子流域经济发展水平在空间上的差异显著，市域经济发展水平在三大经济地带上差异较大；长江流域经济热点区的空间格局相对稳定，核心区范围在流域内呈圈层状自东向西不断扩散，以成都城市圈为内环的环状边缘区范围持续缩小；（3）区域发展策略是长江流域经济增长的最主要因素，对区域差异的影响程度最深。