Analysis on Tourism Economic Connection of Beijing-Tianjin-Hebei Based on the Improved Gravity Model

（Hebei Finance University，Baoding，Hebei071051，China）

Abstract：Under the framework of gravity model，the physical distance is improved to the relative distance of time and currency based on traffic. The tourism economic connection strength model is constructed to calculate the intensity of tourism economic connection between the major cities and tourism influence of Beijing-Tianjin-Hebei urban agglomeration in 2012 and 2018；and ArcGIS10.2 is used to analyze the spatial pattern evolution of tourism economic connection in Beijing-Tianjin-Hebei. The results show that the pattern of tourism economic connection among Beijing，Tianjin and Hebei has evolved from a“singlecentral radiation”pattern centered on Beijing to a“dual-core network”pattern centered on Beijing and Tianjin. Beijing's tourism influence is in an absolute advantage in the Beijing-Tianjin-Hebei urban agglomeration，followed by Tianjin. Tourism economic connection between major cities in Hebei Province and the tourism influence of cities have increased，but there is still large room for growth. Beijing- Tianjin- Hebei should integrate tourism resources to develop cross- region tourism markets and expand the size of the market. It is suggested to establish a regional tourism innovation cooperation mechanism to enable low-level tourism development regions to directly take on the tourism innovation achievements of high- level regions. Under the guidance of the government，the main role of tourism enterprises should be brought into play by promoting the cooperation between tourism industry associations，leading enterprises，and tourism-related enterprises.

Key words：Beijing-Tianjin-Hebei urban agglomeration；tourism economic connection；spatial evolution；gravity model；