中文摘要：

高速铁路作为一种显著改变区域可达性的交通设施,对区域空间结构的改变产生着关键影响.以ArcGIS为平台,在社会经济数据及交通地理数据的支持下,以2020年为时间断面,基于交通网络视角从各城市平均可达性格局、中心城市及其腹地划分,以及空间经济联系网络3个角度对高铁时代赣南原中央苏区区域空间结构进行测度.研究结果表明：高铁时代苏区内部可达性状况显著改善,出现明显的时空压缩效应,可达性最优城市群体在空间上集聚于昌吉赣深高铁沿线;基于小时圈影响范围的中心城市腹地划分结果显示,赣州的腹地范围最大,井冈山的腹地面积最小,吉安、瑞金、南城三者的腹地范围相差不大;苏区经济联系网络呈多中心放射状格局,苏区的对外经济联系网络内部空间差异特征明显.

英文摘要：

As a transport facility can significantly change the regional accessibility,high-speed railway has a key influence on the change of the regional space structure.Taking ArcGIS as a platform,and with the support of socio-economic database and the traffic geographic database,this article measures the regional space structure from three angles which concludes the pattern of each city＇s average accessibility,the central cities and the division of their hinterlands,as well as space economic network in Southern Jiangxi Central Soviet Area based on the traffic network perspective.The results show that：in high-speed railway era,the accessibility has been significantly improved,and the time-space compression effect is clear in the inner Central Soviet Area.Besides,urban groups which have the best accessibility are gathering along Nanchang-Ji＇an-Ganzhou high-speed railway.What＇s more,the division of central cities＇ hinterlands based on time-based area displaces that,the hinterland of Ganzhou is the biggest,while the hinterland of Jinggangshan is smallest;at the same time,there exists a little difference in hinterlands＇ scope of Ji＇an,Ruijin,and Nanchang.Therefore,in the Central Soviet Area,its inner network of economic communication forms a multi-central radial pattern while its foreign network of economic relation has an obvious spatial differentiation.