水利旅游资源空间结构特征及自驾车可达性研究——以长江中游城市群国家水利风景区为例

以长江中游城市群60处国家水利风景区为研究对象,利用最邻近点指数、Voronoi多边形面积变异系数、核密度分析、图层叠加分析等空间分析手段和GIS空间分析工具,对区域水利旅游资源的空间结构特征进行分析。解释了水利风景区空间分布的影响因素。最后基于谷歌地图搜索测算了各水利风景区对于相应城市群地级市的交通可达性。结果表明:水利风景区呈随机、均匀分布态势,但有集聚分布倾向;空间集聚形态上表现为三处高密度集聚圈、三处低密度集聚圈、一处真空地带;水利风景区空间分布受资源禀赋、交通区位、政策支撑等多因素影响;水利风景区的通达度均值为212.15分钟,大部分水利风景区可达性并不理想;湖南各地级市到达所有水利风景区平均耗时优于江西和湖北。

A STUDY ON THE SPATIAL STRUCTURE FEATURES OF WATER CONSERVANCY TOURISM RESOURCES AND SELF-DRIVING ACCESSIBILITY——TAKING THE NATIONAL WATER CONSERVANCY SCENIC SPOTS IN CITY CLUSTERS ALONG THE MIDDLE REACHES OF THE YANGTZE RIVER AS AN EXAMPLE

By selecting altogether 60 national water conservancy scenic spots in the city clusters along the middle reaches of the Yangtze River as the research object, this paper conducted a thorough analysis on the spatial structure features of regional water conservancy tourism resources with the adoption of spatial analysis methods including the K-Nearest Neighbors algorithm, Voronoi polygon area coefficient of variation, kernel density analysis and map layer overlapping analysis, and spatial analysis tools such as GIS. Moreover, the relationship between the spatial distribution of water conservancy scenic spot and factors was also explained in this dissertation. Through a detailed analysis of the aforementioned contents, this paper calculated the transport accessibility that each water conservancy scenic spot showed against its respective prefectural city on the basis of Google Earth results. It concludes that: though distributed randomly and uniformly, these water conservancy scenic spots were showing a trend of aggregated distribution; the aggregated distribution was manifested as three high-density aggregation circles, three low-density aggregation circles and one vacuum zone; the spatial distribution of scenic area of water conservancy was largely affected by its resource endowment, transport location and policy support; the average transport time from prefectural city to its corresponding water conservancy scenic spot was 212.15 minutes so that most of them showed a low level of accessibility; it took less time to travel from prefectural cities in Hunan Province to all the water conservancy scenic spots than those in Jiangxi and Hubei Province.