Spatial Analysis of Tourism Economy in Cities along the Jiangnan Canal Based on PCA and Modified Gravity Model

The Beijing-Hangzhou Canal is a cultural link and an economic artery that connects the northern and the southern parts of China, and the Jiangnan Canal is the core of two national strategies: the "Canal Cultural Belt" and the "Yangtze River Economic Belt". In 2018, China issued a series of strategies and policies to promote the development of cultural tourism in the Grand Canal of Beijing and Hangzhou. This development vision requires further analysis of the status of tourism economic development in cities along the Canal. This paper selects 14 cities in the Jiangnan Canal section to analyze the spatial distribution of tourism factors and the spatial structure of tourism economy by means of principal component analysis (PCA) and modified gravity model, identifying the development characteristics of tourism economy in the Jiangnan Canal section, including the disparity in the development of tourism economy and the weak radiation-driven role of the core area, and from the perspective of cultural economics. The phenomenon of uneven development of tourism economy in Jiangnan canal section cities needs to build a coordinate planning mechanism to regulate the level of economic development factors in the region, and cooperate to achieve the coordination of cultural resources protection and economic development goals.