中文摘要：

随着区域旅游业的快速发展,旅游中心地在组织旅游活动、形成区域空间结构等方面发挥着越来越重要的作用.运用分形几何学方法,结合区域旅游空间格局演变过程,构建区域旅游中心地规模与空间结构的数据模型,并以长江三角洲地区为例进行实证研究.研究结果表明：长江三角洲地区旅游中心地规模与空间结构是分形的,该地区形成了以上海市为首位旅游中心地的四个层级的等级规模体系,各个旅游中心地之间是一种比较均匀的空间结构布局.最后提出了长江三角洲地区旅游中心地的规模与空间结构的优化方向和措施.

英文摘要：

With the rapid development of regional tourism industry,the tourism central area plays a more and more important role in organizing tourism activities and forming regional tourism spatial structure.This article based on fractal theory,combines spatial pattern evolutionary process of reginal tourism,develops a data model of regional tourism center＇s scale and spatial structure,and conducts a practical study on tourism center in Yangtze River Delta.The result proves it is feasible using fractal theory to research on tourism center,and there are typical fractal characters of the scale and structure in Yangtze River Delta tourism center.From the scale structural perspective,Shanghai becomes the primary tourism center of Yangtze River Delta,included into the four categories of classified scale system.From spatial structural perspective,there is a uniform distribution among each tourism centers in Yangtze River Delta.Finally,according to these results,the direction and approaches to optimize the tourist center of the Yangtze River Delta to the scale and spatial structure were proposed.