## 4 Coordination Mechanism of High-Quality Coupling Development between Tourism and Urbanization  
There is a high degree of coupling between tourism and urbanization in the Yangtze River Delta Urban Agglomeration, but the degree of coordination is not high. In the contemporary context of economic development, unbalanced and inadequate regional development remains a prominent problem, and mechanisms for coupled, coordinated, and high-quality development are relatively lacking. Research and discussions on the high-quality development mechanism of tourism and urbanization in the Yangtze River Delta are necessary to promote the high-quality development of economic integration in the Yangtze River Delta. The 14 th Five-Year Plan has repeatedly emphasized the imperative to adhere to the new development philosophy and provide a fundamental guarantee for high-quality development. The study applies the new development vision to explore the coupling coordination high-quality development mechanism of tourism and urbanization in the Yangtze River Delta region (Figure 6), providing significant findings on the coupling coordination high-quality development of tourism and urbanization. Figure 6: Mechanism of coupling and coordination of tourism industry and urbanization. Urbanization has provided economic support for tourism, and the development of tourism has facilitated the promotion of urbanization. The huge domestic demand potential of urbanization has formed a new consumer market, providing broad market demands and an internal impetus for economic development. People demand a higher quality of life and consumption, becoming a new driving force for economic growth. Market demand, government policy, and technological innovation are external motivating factors for the coupling and coordinated high-quality development of tourism and urbanization in the Yangtze River Delta Urban Agglomeration. Market demand requires equilibrium in terms of supply: industrial structure reform is the core of this necessity in order to improve the industry chain level, make up the short board, and increase effective supply to meet the development of diversified demands. Innovation-driven, knowledge-driven, and industry-driven factors form the internal impetus to realize the coupling and coordination of high-quality development. Now, New Urbanization policy, characterized by people-oriented urban and rural interaction and ecological harmony, has too much in common with the tourism industry in terms of economic value, as well as social value, cultural value, and ecological value, and even in terms of the sustainable development of the overall region. The depth of convergence is the key factor that promotes the development of high-quality vision, system, space, industry, culture, and other aspects of the two systems, based on the in-depth implementation of the five-development vision. This study defines deep integration as a relationship of deep development at five levels. The first level is concept integration. High-quality development is the common goal of urbanization and tourism, and concept integration plays a fundamental role. The second level is institutional integration. Urbanization and tourism institutions are highly consistent, and integrated development is an important way to reflect institutional fairness. The third level is spatial integration. The development of urbanization and tourism breaks through the spatial administrative division and expands the shared space, making the boundary of the two constantly blurred, and blending has become a common phenomenon. The fourth level is the integration of industries. Different industries within the tourism industry and industrial boundaries within the same industry have undergone new changes, and the industrial value chain continues to extend. The fifth level is cultural integration. The cultural attribute and tourism function of tourism are the foundation of integrated development.