南京市星级酒店空间可达性格局研究

运用ArcGIS 9.2软件,结合ESDA方法对南京市星级酒店空间可达性格局进行分析,结果表明:南京市星级酒店空间可达性整体较好,在地域分布上呈以酒店为中心的距离衰减规律,而且等级愈高的酒店可达性愈差。其中二、三星级酒店的空间可达性较好且较相似,而四、五星级酒店可达性也较相似但较差;基于乡镇街道为统计单元的二、三星级酒店可达性总体集聚程度相当且较低,而四、五星级酒店总体集聚程度相当且较高;可达性热点区与冷点区呈现以主城区为中心的圈层结构,其中热点区主要分布在主城区,而冷点区分布在南京市域边缘区域;最后将星级酒店可达性格局的影响因素归纳为酒店分布、行政单元大小、交通基础设施、旅游资源和经济条件等,其中前3个为直接原因,后2个是间接原因。

Research on Spatial Pattern of Accessibility about Star-rated Hotels in Nanjing City

In order to make a quantitative analysis about spatial pattern of accessibility about star-rated hotels in Nanjing City,the software of ArcGIS 9.2 was adopted and the method of ESDA was used to analyze it by indexes such as Moran’s I and Getis-Ord G *i.The result showed that the overall accessibility of different star-rated hotels in Nanjing City was fairly good basically.However,as to the overall distribution,the accessibility diffusion graph followed the rules of distance decay,which led to a regional layered spatial structure.What was more,the higher the level of star-rated hotels they were,the worse the overall accessibility was.On the whole,the overall accessibility of two-star hotels and three-star hotels was much better and similar.The overall accessibility of four-star hotels and five-star hotels was similar too but relatively bad.At township(neighborhood) level,the estimated values of Moran’s I were all positive numbers using analysis of spatial association.All the test results indicate that the estimated values of Moran’s I about two,three-star hotels showed weak positive correlation,while the estimated values of Moran’s I about four,five-star hotels indicated more significant positive correlation,twice as high as two,three-star hotels.The accessibility diffusion graph of hot spot regions and cold spot regions took on a laver structure which taking the main urban area of Nanjing,in which the hot spot regions were mainly distributed,as the center,while the cold spot regions were distributed in border districts of Nanjing City.And finally,on the basis of the above results,some factors,which impacted the accessibility pattern of Nanjing City,such as the distribution of star-rated hotels,the size of administrative unit,transportation infrastructure,tourism resources and economic conditions,were summed up in the paper,and the former three were the immediate causes,the latter two factors were indirect causes.