长三角地区旅游圈吸引物体系空间结构聚集分形特征

doi:10.11821/yj2010120008

摘要/Abstract

摘要：

基于GIS技术,结合旅游域模型,获得长三角地区各旅游中心城市旅游圈旅游吸引物数据,运用分形方法对其空间结构进行聚集维数的测算与分析。认为各旅游圈旅游吸引物体系具有聚集分形特性,且存在三种不同类型,在相同类型中的各旅游圈旅游吸引物体系聚集维数值在无标度区间的变化也存在差异;空间结构基本上是从中心旅游吸引物点向周围腹地密度衰减的,在对应于R_s≤30km的无标度区间内,旅游圈旅游吸引物空间结构随机聚集维数值均在0.5左右,对应于其他无标度区间,随机聚集维数值多在1.35和1.80左右;南京、苏州、常州、无锡和上海等北部地区旅游圈旅游吸引物系统空间结构随机聚集维数值小于杭州、绍兴和宁波等南部地区的旅游圈,北部地区城市旅游圈旅游吸引物体系空间结构紧致性强于南部地区的城市旅游圈,北部旅游圈足以构建3日游的110km半径,南部旅游圈的实际范围则可能小于110km。

关键词: 旅游圈吸引物体系, 聚集分形, 长三角

Abstract:

Applying the travel areas model and GIS to obtain the data of tourism attraction systems in various travel circles in the Yangtze River Delta, this paper measures each aggregation fractal dimension on spatial structure of each tourism attraction system. Aggregation fractal non-scaling intervals have showed three sections of tourism attractions systems' spatial structure in travel circles of Nanjing, Suzhou and Hangzhou, and non-scaling intervals dividing points of three sections correspond to R_S=10 km and R_S=30 km; those of Changzhou, Wuxi, Shanghai and Shaoxing have showed two sections, and the dividing point corresponds to about R_S=30 km; the tourism attractions system' spatial structure of travel circles of Ningbo is simple, and its non-scaling interval is one section and wide. There are differences on the changing trend of aggregation fractal dimension values in the same type of tourist attraction system. We have drawn the conclusion that tourism attraction systems' spatial structure represents the density decay characteristics from the center tourism attraction point to the surrounding hinterland, in the corresponding R_S ≤30 km non-scaling interval, aggregation fractal dimension values are clustered around 0.5, in the corresponding 30＜R_S≤75 km non-scaling interval, which gathered around 1.35 or 1.80. Tourism attractions systems' spatial structure aggregation fractal dimension values of the northern travel circle including Nanjing, Suzhou, Changzhou, Wuxi and Shanghai are around 1.35, and those of the southern travel circle including Hangzhou, Shaoxing and Ningbo are around 1.80, which indicate that the spatial structure of northern city travel circles are more compact than those of southern city travel circles. Northern city travel circles play a bigger central role, and the travel areas are coordinated with travel circles. These tourism central cities can fully support a three-day travel circles of 110 km radius, and can fully realize the function of tourism management, service and tourism transportation, thus these cities tourism facilities are efficiently used. Southern city travel circles play a relatively weak central role, and these cities deficiently perform the tourism function; then, these cities tourism facilities are used with relatively low efficiency and those actual travel circles' radius are probably less than 110 km. Therefore, we should not build superabundant tourism facilities in these tourism central cities to support a three-day travel, and should build some tourism facilities in these ordinary tourism cities in the scope of 110 km radius.

Key words: tourism attraction system of travel circle, aggregation fractal, Yangtze River Delta

戴学军, 丁登山, 林岚. 长三角地区旅游圈吸引物体系空间结构聚集分形特征[J]. 地理研究, 2010, 29(12): 2189-2200.

DAI Xue-jun, DING Deng-shan, LIN Lan. Spatial structure aggregation fractal of tourism attraction systems in travel circles in Yangtze River Delta[J]. GEOGRAPHICAL RESEARCH, 2010, 29(12): 2189-2200.

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