Digital village is an important driving force for agricultural and rural modernization. It is not only the strategic direction of rural revitalization, but also an important part of the construction of digital China. On the basis of analyzing the spatial characteristics of Chinese digital villages, we match CHFS database with Digital Rural County Index, and use the threshold regression method to identify the income increase effect of rural households. The results show that: (1) The development of digital villages in China is unbalanced, presenting a decreasing trend from east to middle and west, but there is little difference between the north and the south; (2) The development level of the four sub-dimensions of digital villages is in the descending order of rural digital infrastructure, rural governance digitization, rural economy digitization and rural life digitization, and there is a large east-west difference between rural economy digitization and rural life digitization. At the same time, the total development level of digital villages and each sub-dimension are significantly correlated in space, and the HH and LL clustering characteristics are prominent. (3) Digital villages promote farmers' income through rural digital infrastructure, rural economy digitalization, rural governance digitalization and rural life digitalization, among which the income increase effect of rural economic digitalization is the largest. (4) The income increase effect of rural households is related to the education and income level of rural households, that is, the income increase effect of rural households with higher education is more significant, while that with lower income is not obvious, and even has a restraining effect. In addition, considering the development stage of the digital villages itself and the level of regional economic development, the digital village has a nonlinear impact on the increase of farmers' income.

Urban-rural integration is a new era proposition in the context of the backwardness of rural development. Optimizing the town-village construction pattern is a fundamental way to address rural development problems, which is of immense theoretical and practical significance. This paper adopts a comprehensive approach using the fracture point model, social network analysis method, and field energy model from the perspective of urban-rural symbiosis to restructure the town-village construction pattern in Guanyun county, located in northern Jiangsu province. The results demonstrate that: (1) The comprehensive quality of villages and towns is the symbiotic substrate, and the time and distance cost of interaction and communication between them is the symbiotic interface under the perspective of urban-rural symbiosis. The symbiotic substrate and interface of villages and towns can be combined for symbiotic selection to guide the optimization of the town-village construction pattern. (2) Based on town quality, centrality, and network cohesion subgroups, the grading of villages and towns in Guanyun is determined. The improved field energy model is utilized to establish town symbionts by calculating the spatial field energy of the county and each town, forming a county-town-village hierarchy of mutual urban-rural symbiosis. (3) The village gravity matrix is reconstructed, and a directed connection line is established between villages. It is observed that 25 villages, including Houbu, Shengou, and Dongxu, have weak connections with other villages, which require further adjustments. Based on urban radiation range and village gravity connections, an optimization adjustment plan is developed to optimize the town-village construction pattern.

Exploring the spatial correlation of rural territorial multi-functions and its impact on urban-rural integrated development is an important basis for realizing the coordinated improvement of rural territorial multi-functions and efficient urban-rural integrated development. This study explains the influence mechanism of structural characteristics of spatial correlation network of rural territorial multi-functions on urban-rural integrated development, and takes Henan province as a case area to carry out an empirical test with the help of social network analysis and panel regression model. The main conclusions are as follows: (1) The spatial association of rural territorial multi-functions in the study area shows an increasingly complex network structure with the annular differentiation, which presents the spatial pattern of "dense in the central region, but sparse in the marginal area". (2) The network density and network stability are gradually enhanced, while the network closeness needs to be improved. (3) Xinmi, Xinzheng and Yuzhou hold the dominant position in the network, while Nanle, Shangcheng and Yima are at the edge of the network. (4) The structural characteristics of spatial correlation network of rural territorial multi-functions have a significant impact on urban-rural integrated development, and the enhancement of the individual centrality plays a significant role in promoting urban-rural integrated development. This study deeply analyzes the spatial interaction of rural territorial multi-functions, and reveals that the urban-rural integration effect of rural territorial multi-functions presents network non-equilibrium characteristics, which can provide theoretical support for rural linkage development and urban-rural integration at county level.

Identifying the spatial structure of the rural regional system scientifically and systematically is the premise of proposing differentiated rural revitalization strategies. This is of important practical significance for thoroughly implementing the rural revitalization strategy and accelerate the integrated development of urban-rural areas. This paper takes Changsha county, Hunan province as the research area, constructs a rural development evaluation index system based on the rural regional multi-body system and the multi-level goals of rural revitalization, and integrates research methods such as gravity model, K-Means clustering, geographic detectors and spatial autocorrelation. Quantifying and identifying the spatial structure, including poles of rural revitalization, fields of village-town space, zones of rural development and urban- rural infrastructure networks, is composed of 137 administrative villages in Changsha county. The results show that: (1) The spatial differentiation of rural development level in the study area is the result of a combination of factors, which presents a circle structure weakening from the center of the town core to the periphery, and the spatial agglomeration effect is significant. (2) The closeness of supply and demand between regions is an important factor affecting the strength of spatial linkage, and the intensity of spatial connection based on factors can better express the needs and complementary pattern of regional development. (3) The "Pole-Field-Zone-Network" multidimensional analysis framework has strong applicability for the identification and division of the spatial structure of the rural regional system in the suburbs of the urban area. Finally, 11 rural revitalization poles, 3 village space fields, and 7 rural development areas were specifically determined and divided, and an urban-rural infrastructure network based on the "pole-field-zone" network structure was constructed. According to the spatial structure, this paper puts forward differentiated suggestions for promoting rural revitalization and urban-rural integration development.

Boosting the internal impetus for rural development is key to promoting high-quality rural development and constructing livable, workable, harmonious and beautiful villages. To this end, existing studies call for neo-endogenous rural development through the collaboration of actors within and outside villages. However, most of the studies discuss this issue at the conceptual level, which still needs a systematic framework to provide action guide. Addressing the gap, this study combines the symbiotic theory and neo-endogenous development pattern, and builds a research framework with three dimensions of the symbiotic unit, symbiotic pattern and symbiotic environment. Taking the "Rural Operation" practice in Lin'an district in Hangzhou as the case, this study identifies the path and mechanisms of the symbiosis of multiple actors within and outside villages to realize neo-endogenous rural development. This study finds that: (1) Local forces, social forces and government forces constitute the basic symbiotic units, respectively assuming the roles of endogenous power, localized intermediary and platform constructor. (2) Neo-endogenous rural development is embedded in a multi-scale symbiotic environment of state, market and local spaces. Multiple action logics, including the state administrative logic, market economic logic and local cultural logic, exist in the environment. (3) In terms of the symbiotic pattern, symbiotic units need to build deep and multiple linkages with each other, establish shared values, and construct a governance system with formal and informal institutions, to enable the stability and sustainability of the symbiotic relationship. This study also provides practical implications for boosting the internal impetus for rural development and promoting rural revitalization, from the perspective of symbiotic theory.