The influence mechanism of county urban-rural integration development on the realization of common prosperity of rural tourism destinations: Take 60 typical counties in the Yangtze River Delta region as examples

Rural tourism destination is the key area to promote urban-rural integration and achieve common prosperity. Accurately grasping the multidimensional characteristics of county urban-rural integration development and systematically analyzing its mechanism of promoting the common prosperity of rural tourism destinations, is conducive to enriching the theoretical system of urban-rural common prosperity in the New Era. Therefore, based on symbiosis theory, this paper constructs a theoretical framework to examine the influence mechanism of urban-rural integration development on the common prosperity of rural tourism destinations. This theoretical framework is composed of the chain causality of "symbiotic unit-symbiotic environment-symbiotic result-symbiotic effect-symbiotic purpose". Based on this framework, this paper makes an empirical analysis of 60 typical rural tourism counties in the Yangtze River Delta region. The results show that: (1) Although rural tourism can continuously deepen the symbiotic relationship between urban and rural areas and enhance the common prosperity level of rural tourism destinations, it is characterized by unbalanced development and forms a "core-edge" spatial development layout. (2) The county urban-rural integration development can linearly promote the common prosperity of rural tourism destinations. And through the cultivation of tourism talents, the expansion of tourism market, the integration of space and landscape, and the allocation of tourism resources, new symbiotic energy is formed to enhance the promotion effect. Among them, because the countryside is in the period of material wealth accumulation, the tourism market expansion mechanism to improve residents' income level has the highest mediating promotion effect. (3) In urban-rural symbiotic units of different city sizes, the symbiotic environment of population, land and industry is differentiated and integrated to promote the common prosperity. Compared with small and medium-sized cities, the promotion effect of big cities is higher. On the one hand, big cities take industry as the core symbiotic environment, and activate the tourism market and cultivate tourism talents under the advantage of population size. On the other hand, small and medium-sized cities take population as the core symbiotic environment, and the utilization efficiency of rural tourism resources is effectively improved after population return. Therefore, large, medium and small cities can realize the common prosperity of rural tourism destinations. In brief, county urban-rural integration development has become a practical starting point to promote common prosperity. Based on the development scenario of rural tourism, this paper provides forward-looking thinking for major national practical problems.