中文摘要：

以国家3A级以上旅游景区为例，基于地理学方法的空间分析手段和GIS空间分析工具，从定量和定性两方面探讨长江三角洲387个3A级以上旅游景区的空间分布结构，分析其空间分布规律．结果表明，长江三角洲3A级以上旅游景区的空间分布类型为凝聚型；景区在研究区分布较为集中，其分布高密度区是上海、苏州、南京、杭州等城市；景区间的快速交通线路密度不大，空间联系较弱，且紧凑程度一般．最后，给出长江三角洲3A级以上旅游景区空间结构优化的方向与策略．

英文摘要：

Taking the Yangtze River Delta area as research object, it analyses the spatial distribution structure and spatial distribution regular pattern of 387 3A level-above tourist attractions by means of some quantitative and quali- tative analysis methods and GIS spatial analysis tools. Results are as follows： The distribution type of 3A level-a- bove tourist attractions is cohesive. The distribution of 3A level-above tourist attractions is concentrate in the study area. Besides, Shanghai, Suzhou and Nanjing are the most high density area of tourist attractions. The density of fast transportation lines is low, and the spatial links are weak, so is the compactness in the area. At last, the influ- encing factors of the spatial differences are discussed and the optimizing approaches are also put forward.