中文摘要：

构建“差异-增长极-关联”研究框架,以环渤海港口城市群为例,就其开展旅游合作以来的时空演变进行分析,结果表明：1）城市间旅游经济发展存在σ收敛和β绝对收敛,但速度不快;2）局部空间相关关系总体上变动不大,形成以最显著增长极——天津为几何中心,南北大致对称的格局,大连、青岛为次增长极,出现低水平空间依赖发展趋势;3）三大旅游经济圈呈现不同发展方式,溢出效应均不显著;4）各旅游经济圈自成体系,基本以省区为界,没有形成区域中心城市.

英文摘要：

From the aspects of difference,growth pole and linkage,this paper makes a research on the spatio-temporal evolution of tourism cooperation between 16 port-cities in the Bohai Rim.Results are shown as follows：1） The tourism economy of portcities in the Bohai Rim displayed the σ convergence and absoluteβ-convergence,but whose speed was low.2） On the whole,there had been few changes in the local spatial relationship from the beginning of cooperation.Tianjin was the most significant growth pole and geometric center,Dalian and Qingdao were the secondary growth poles.There was a development trend of spatial dependence at low level.3） Three tourism economic circles displayed different development patterns.The spillover effect was not significant in three circles.4） Each tourism economic circle was independent which nearly just included the cities in the same province.There was not tourism center city in the cooperation region.