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【Objective】The intersection of big data and research on ‘three rural’ issues has created a research field with great potential. By combing the research results in this field, this paper has an in-depth understanding of its research focus and future direction, in order to provide some support for related research.【Method】 The paper used the methods of literature analysis and summary and induction to summarize and discussed the application of big data in the research of ‘three rural issues’ from three aspects: Research on agricultural issues, research on rural issues and research on farmers’ issues.【Result】With the popularization of communication infrastructure, big data such as internet usage data, communication sensor equipment data, geospatial data, organization management and operation data have been applied to the research of ‘three rural’ issues in China. At present, the application of big data in the research of ‘three rural’ in China has been constantly enriched. In the research of agricultural problems, big data has been applied to all links of agricultural production and operation, such as agricultural production monitoring and output improvement, and agricultural product market trend prediction. In the research on rural issues, the application of big data mainly focused on depicting the current situation of rural development, especially the evaluation of rural spatial environment, which can find a large number of rural spatial structures and systems driven by actual social and economic activities. In the research on farmers’ problems, the problem areas applied by big data mainly include the identification of farmers’ spatio-temporal behavior laws and the wealth and well-being of farmers reflected by them. High coverage data reflecting individual behavior, such as mobile phone use and signaling positioning data, has been the main data sources for such research.【Conclusion】The application of big data in the research of ‘three rural’ issues in China shows great development prospects in the development of agricultural industry, farmers’ lives and spatial planning, but there are also challenges in the aspects of data source and quality, method design, integration of traditional governance experience, etc. [ABSTRACT FROM AUTHOR]

【Objective】The present paper aimed to analyze the spatio-temporal evolution and trend of arable land utilization transformation in China, and to provide a theoretical reference for the transformation and protection of arable land utilization. 【Method】The transformation of arable land utilization, mutation point and spatio-temporal evolution were explored by entropy value method, temporal mutation point test and coupling coordination degree model. 【Result】From the perspective of time, the transformation index of cultivated land utilization transformation space, function and model in various provinces, autonomous regions and municipalities in China was generally low but continued to grow, and the transformation and development of arable land utilization was slow and low. Before 2010, in addition to Tianjin, Shanghai, Zhejiang, Fujian, Shaanxi and Xinjiang Uygur Autonomous Region, the comprehensive transformation of arable land utilization in various provinces, autonomous regions and municipalities in China was initially realized, but the transformation index was low, and there was still much room for improvement. From a spatial point of view, the transformation of arable land utilization in China has basically formed a spatial pattern in which the high-value areas mainly in the eastern region and the low-value areas in the western region as the core coexist, and the spatial migration of arable land utilization transformation showed a northeast-southwest transfer pattern, and the regional differences were obvious. The three subsystems of arable land utilization transformation space, function and mode were well coupled, but the imbalance phenomenon was becoming increasingly prominent. Overall, the transformation and development potential of arable land utilization was large, the three promoted each other, and the coupling coordination degree had a trend of ‘westward’ transfer in space, and there was a certain unbalanced trend. 【Conclusion】The transformation of arable land use showed a trend of ‘westward shift’ in space and time, and the three major subsystems of the transformation of arable land use were well coupled, but the phenomenon of dysfunction was increasingly prominent, and there was a certain degree of unevenness. Therefore, the development strategy of diversity, differentiation and regulation from the developed areas in the east to the traditional agricultural areas in the west should be implemented, to strengthen the linkage and coordination role between the 3 subsystems of spatial, functional and modal transformation of arable land use, activate factors related to agricultural development, promote the modernization of agriculture, and then achieve high-quality utilization of arable land. [ABSTRACT FROM AUTHOR]