Western scholars have studied the urban-rural gap in developing countries and the problems that exist with integrated urban and rural development, and they have proposed theories including “Desakota,” “regional network” (McGee,
2008), “urban-rural dualism” (Lysgard,
2019), “urban bias,” and “urban-rural equalized development” (Liu
et al.,
2013). Based on the above theories, scholars in Western countries have explored the practical paradigm of urban-rural integration using a regional concept of urban and rural land uses coexisting within the same geographical scope (Terry,
1991). Chinese scholars, meanwhile, have focused on the theoretical connotations, development mechanisms, and empirical studies of urban-rural integration. They have stated that urban-rural integration in China is still in the stage of deepening and polarizing (Chen
et al.,
2020), and that the essence of urban-rural integration is to realize the coordinated and integrated development of urban and rural areas based on free flows, fairness, and sharing of urban-rural development factors (Liu,
2018). It has also been suggested that emphasis should be placed on the two-way development of urban and rural areas, encouraging supply-side structural reform, and building distinctive small towns to promote cultural integration between cities and villages (Li,
2018). Others have pointed out that urban-rural integration involves the integration of the structures, public services, infrastructure, economies, eco-environments, and many other aspects of urban and rural areas, and that urban-rural integration in China’s stage of high-quality development means multi-dimensional integration of “population, space, economy, society, and environment” as well as mutual promotion and coordinated development of urban and rural areas (Dai
et al.,
2015; Zhou
et al.,
2019). It has been said that the key to integrated urban and rural development is to dissolve systemic barriers to flows of factors of production, structural integration, and exchanges of functions in the existing urban and rural area systems (Ge
et al.,
2020), and that to promote urban-rural integration, we should pay more attention to the reform of urban-rural links and expand bidirectional opening up (Jin
et al.,
2019). To judge the extent of integrated urban and rural development, scholars have devised index systems that have included economic, social, lifestyle, and ecological dimensions and that use subjective assignment methods, objective assignment methods, and combinations of subjective and objective assignment methods (Wu
et al.,
2016; Gao
et al.,
2019). In addition, the spatial evolution characteristics of integrated urban and rural development have been analyzed using spatial analysis, landscape analysis, and other methods (Che
et al.,
2017; Wu
et al.,
2020; Zhang
et al.,
2020). It is believed that an important prerequisite for achieving integrated development is to have rational flows of resources and factors of production between urban and rural areas (Li,
2012), to promote the continuous optimization of the spatial distribution of society, economy, and ecology between urban and rural areas and so that the return on resources and factors of production are enjoyed by both urban and rural areas, which will ultimately lead to the equal development of urban and rural areas (Liu
et al.,
2015). Using Chinese panel data to test empirically the impact of urban and rural factors of production on the development of urban-rural integration, it was found that the mismatch of production factors in China’s agricultural sector is relatively severe, the integration of people and land plays a considerable role in promoting the coordinated development of urban-rural relations, and the mismatch in non-agricultural sectors is worsening, hindering integrated urban and urban development (Liu
et al.,
2016). An urban-rural multi-level, multi-center network model has been proposed to optimize the integrated urban and rural development model (He
et al.,
2019). Integrated urban and rural development policies have been formulated to promote urban-rural economic interactions and cultural information exchanges (Qian
et al.,
2012; Liu
et al.,
2018), as well as to promote the equalization of urban and rural public services and facilities and build a harmonious symbiotic relationship.