Study On The Change Of Domestic Tourism Flow Network Structure In The Middle Reaches Of The Yangtze River

With the rapid growth of tourism,?Internet + tourism ?has also become a new economic growth point.More and more people choose to use the internet as a tool or means to assist travel,and then it will leaving a large number of traces of search on the internet.These traces also provide new ideas and methods for the study of tourism-related issues.Based on seasonal intensity index,tourism flow agglomeration and diffusion index and social network analysis method,used the network attention data of the middle reaches of the Yangtze River,this paper explores the tourism spatial activities,network structure,interannual variation and related influencing factors of the middle reaches of the Yangtze River.Analysis,the results found:(1)Wuhan and Changsha are the core node cities of the middle reaches of the Yangtze River,with high output and introduction of tourism flows;cities with more convenient transportation,rich tourism resources and high GDP,also the export and import of tourism flows will be higher,the tourist destinations and origin areas are more widely distributed;most of the residents in the middle reaches of the Yangtze River are still carrying out tourism-related activities in their respective urban circles;the import and output of the tourism flow in each city circle are relatively balanced.The tourism flow in the middle reaches of the Yangtze River is affected by the climate,the summer and autumn seasons are the busy season,and the spring and winter seasons are the low season.(2)The overall network structure of the middle reaches of the Yangtze River is complete,and the tourism flow is universal,but the core edge effect is significant.The higher GDP,the more abundance of tourism resources,the better market size and traffic location of the city,the higher centrality,the better structural hole and the greater influence in the tourism network of the middle reaches of the Yangtze River will be;the tourism exchange between cities in summer and autumn is close,the network density of tourism flow is relatively high,and in winter and spring,the opposite is true.(3)The output and introduction volume of the tourism flow in the middle reaches of the Yangtze River has increased in 2017 compared with 2012,and the tourism flows has changed;on the whole,in the past several years,although there are certain fluctuations on the city agglomeration or diffusion of tourism flow and the role of cities in the tourism flow network,but the overall development of tourism are more balanced,the development of tourism in it is getting better and better.At the same time,it is found that GDP,the level of tourism resources and the convenience of transportation are important factors for the middle reaches of the Yangtze River to affect its tourist development.