中文摘要：

以淮海经济区A级旅游景区为研究对象，运用G IS空间分析工具，从定量和定性两个层面，分析了淮海经济区358家A级旅游景区的空间结构特征。结果表明：淮海经济区A级旅游景区呈凝聚型空间分布；空间分布呈现东多西少的区域总体特征、两纵三横的轴线特征和明显的核心边缘结构特征。从具体景区分布看，沿海沿河地区、铁路沿线地区以及连云港、徐州、枣庄、济宁和泰安等主要城市A级旅游景区分布密度较高。根据景区空间分布特征，从旅游资源、交通、经济和区位等因素对成因及空间结构优化策略进行了探讨。

英文摘要：

By using GIS spatial analysis tools ,the spatial distribution structure characteristics of 358 A‐level tourist attractions in Huaihai Economic Zone are analyzed with the quantitative and qualitative methods .A‐level tourist at‐tractions are cohesively distributed in the eastern area while there are only a few attractions in the western area .The distribution of scenic spots appears with two vertical and three horizontal axis ,and core edge structural features sig‐nificantly .From the perspective of specific cities ,the tourist attractions densely distributed along the coast ,rivers , railways and key cities such as Lianyungang ,Xuzhou ,Zaozhuang ,Jining and Tai＇an .Based on the above findings , the causes of spatial structure are probed into from tourism resources ,transportation ,economic and geographical factors .Finally ,some strategies to optimize spatial structure are proposed .