In order to break the static distribution of leisure agricultural tourism, taking Chongqing as an example, the spatial domain is constructed based on the perspective of element flow, and the “source-sink” theory is applied. The results show that traditional leisure agricultural tourism in Chongqing mostly relies on cultivated land, forest land and grasslands, and the land space structure is compact, with the main urban area as the axis or along the Yangtze River. The comprehensive ecological sensitivity of Chongqing is relatively low, with moderate and mildly sensitive areas accounting for 62.49% of the total. The constructed “source-corridor” spatial domain includes 6 leisure agricultural tourism sources and 18 element flow corridors. Based on the spatial layout of “one center and two rings, one corridor and two wings”, the continuity and sustainability of leisure agricultural tourism in the whole area can be realized through the strengthening of 40 key nodes and the improvement of 18 corridors network. The research results can provide a theoretical basis for the spatial distribution of tourism in Chongqing, and promote the innovative practice of comprehensive tourism management.

Taking Wannian County of Jiangxi Province as the research area, constructing the evaluation index system of rural residential multi-functions, using the methods of full arrangement polygon comprehensive graphic method, Spearman correlation analysis, spatial autocorrelation analysis and explicit comparative advantage weight index, this paper analyzes the spatial characteristics of rural residential multi-functions and carries out comprehensive functional zoning. The results show that 1) Wannian County presents the characteristics of “living function and production function are the main, followed by ecological function”, which is spatially heterogeneous. 2) There is a complex interaction between the multi-functions of rural residential areas, especially the synergistic relationship between living function and production function. 3) Based on the method of “zoning + revision”, Wannian County is divided into I, II, III, IV and V regions under the different goal orientations of coordinated development, function leading and green revitalization. Considering the interaction between functions based on the leading functions of rural residential areas, the delimitation of comprehensive functional areas is an effective way to optimize rural areas, which is of great significance to rural sustainable development. 

Taking 128 administrative villages in Wannian County, Jiangxi Province as the research object, from 2010 to 2018 as the research time point, this paper constructs multi-functional evaluation index system of rural areas from three dimensions — production function, living function and ecological function, quantitatively measures the functional intensity of rural areas, and systematically analyzes and depicts the temporal variation and spatial differentiation process of the functional intensity of rural areas in Wannian County by the methods of trend surface analysis, spatial autocorrelation and cold hot spot analysis. The results show that from 2010 to 2018 the time difference and spatial differentiation characteristics of various functions index in rural areas of Wannian County were obvious and the local agglomeration effect was significant, but the overall regional differences narrowed. In the future, it is important to classify development of regional villages and enhance their leading function so as to achieve sustainable rural development.

According to the great challenge of summarizing and interpreting the information of a long article in the summary model. A summary model (Fine-Grained Interpretable Matrix, FGIM), which is retracted and then generated, is proposed to improve the interpretability of the long text on the significance, update and relevance, and then guide to automatically generate a summary. The model uses a pair-wise extractor to compress the content of the article, capture the sentence with a high degree of centrality, and uses the compressed text to combine with the generator to achieve the process of generating the summary. At the same time, the interpretable mask matrix can be used to control the direction of digest generation at the generation end. The encoder uses two methods based on Transformer and BERT respectively. This method is better than the best baseline model on the benchmark text summary data set (CNN/DailyMail and NYT50). The experiment further builds two test data sets to verify the update and relevance of the abstract, and the proposed model achieves corresponding improvements in the controllable generation of the data set.

Taking Jiangjin District of Chongqing as an example, from the perspective of the rural revitalization strategy, the pre-diagnosis before the project implementation is carried out by constructing the analysis framework of “rural development status evaluation-type of country-pre-evaluation of poverty alleviation project” to identify the advantages and disadvantages of rural development. The results show that the average evaluation of the overall planning in Jiangjin District is 0.080, and high-value area is mainly distributed in the north and east of Jiangjin District. The average evaluation of infrastructure in Jiangjin District is 0.819, forming a southern low-value surrounding zone. The average evaluation of living environment is 0.713, forming a southern high-value surrounding zone and a northern low-value zone. According to the current development status, 241 villages in Jiangjin District can be divided into 15 types. The largest number of “planned general-foundation-generalenvironmental general” type is 64, scattered in the northern part of Jiangjin District. The number of poverty alleviation projects implemented in this type of village is 12, which is significantly more than other types of villages. The implementation of the poverty alleviation project in Jiangjin District is mainly concentrated in the west and the south. From the perspective of the type of rural development in the Jiangjin District and the implementation of each project, the improvement of the integrated planning and infrastructure poverty alleviation project has a higher matching degree with the rural development, but the poverty alleviation project to improve the living environment is only 3.

As the traditional ecosystem service evaluation methods have the disadvantageous as high subjectivity and low comparability, a LUCC-ESs matrix evaluation method is improved. Based on the land use/cover types, the proposed method calculates the ecosystem service units, then builds the LUCC-ESs matrix to evaluate the ecosystem services. This method can avoid different outcomes obtained by different calculation methods, and make these test results comparable and practical. The application of the basic supply service in the Beijing-Tianjin-Hebei region indicates that the spatial pattern of the basic supply services is regional and highly connected with resource reserves and land productivities. The spatial pattern of the demand service appears the same movement and aggregation characteristics as that of the population, which decreases from the city center to suburban. The basic services both inside and outside Beijing-Tianjin-Hebei region converge to the urban center.