Evolution and spatial characteristics of tourism field strength of cities under high speed rail network in China
Traffic is an indispensable prerequisite for tourism system.The high speed rail network of "four vertical and four horizontal" is an important milestone of "traffic revolution" in China,which will produce important effect on the spatial pattern of tourism accessibility in Chinese cities,and then change the tourism attraction force and radiation force of cities greatly.The paper analyzes the evolution and spatial characteristics of tourism attraction force of cities under high speed rail network in China,based on the measurements of the influence of accessibility of 338 cities under HSR with the help of GIS.The results show that:(1) the accessibilities of Chinese cities are optimized under high speed rail network.The spatial pattern of accessibilities presents obvious traffic direction and forms the "high speed rail corridor" effect.(2) The spatial pattern of tourism field strength in Chinese cities presents the dual characteristics of the "multi-center" annular divergence and "dendritic" diffusion,especially "dendritic" diffusion is more obvious along high speed rails;The change rate of urban tourism field strength forms the high value corridor along high speed rails and presents the spatial pattern of decreasing from the center to the outer circumference along high speed rails.(3) The influence of the highest tourism field strength area and higher tourism field strength area under high speed rails is most significant,and the number of cities distributed in two types of tourism field strength increases significantly,the area of the two types of tourism field strength expands more than 100%;high speed rails enhance the tourism field strength value of regional central cities,and radiation range of tourism attraction extends along high speed rails.
high speed rail networktourism field strengthspatial patternevolutionChina