Data security is critical for the healthy development of industrial internet platforms. To scientifically quantify the data security level of these platforms, resilience theory was introduced. Based on the understanding of resilience in the field of system security, the concept of data security resilience for industrial internet platforms was proposed, which included four dimensions, such as risk anticipation, defense, resistance and recovery. Building on this, a data security evaluation index system for industrial internet platforms from a resilience perspective was developed using text mining and semantic network analysis. The G1 method was applied to determine the independent weights of resilience indicators, while the DEMATEL method was used to quantify the interrelationships among these indicators, resulting in hybrid weights. Furthermore, a cloud model-based evaluation model for data security resilience of industrial internet platforms is proposed. This model is applied to assess the data security resilience of the YQ industrial internet platform, with the results aligning with actual conditions, thus validating the scientific and rational basis of the hybrid-weighted and cloud model-based evaluation method. Finally, recommendations are made for the future development of data security resilience in industrial internet platforms, providing theoretical support for enhancing data security resilience moving forward.

Senior executives of listed companies are generally engaged in earnings management activities, and the adverse effect of real earnings management on the long-term development of enterprises is particularly significant compared to accrual earnings management. Based on the data of A-share listed companies from 2018 to 2022, the effect of internal control on real earnings management and its mechanism of action is investigated by setting up structural equation modeling. The results show that high-quality internal control can suppress managers’ real earnings management behavior, and corporate social responsibility serves as a mediating factor in the mechanism of internal control influencing real earnings management. In other words, internal control can suppress real earnings management behavior by proactively engaging in corporate social responsibility.

Low-carbon transition has become a common choice for countries around the world to cope with the ecological and environmental crisis, and the identification of low-carbon economic development modes has become an academic focus. The low-carbon economic development mode and regional differences were identified among 30 provinces(due to the lack of data, the statistical data mentioned here do not include the Tibet Autonomous Region, the Hong Kong Special Administrative Region, the Macao Special Administrative Region and Taiwan Province) in China from 2006 to 2020 by measuring the contribution rate of carbon productivity and carbon emissions. The results show that the overall trend of China’s economic development is to shift from a high-carbon economy to a low-carbon economy. There is a rebound effect of carbon emissions in the improvement of energy use efficiency. Based on the conclusions of the study, the conclusion show that each region should formulate low-carbon economic policies tailored to local conditions. It should pay attention to joint prevention and control and regional cooperation, and make steady progress in promoting the goals of carbon peaking and carbon neutrality.

Given the uniqueness of world heritage resources, an increasing number have been developed into tourism resources to attract tourists from various regions. Based on theories related to tourism spatial structure, such as the tourism location theory, the central place theory, and the growth pole theory, a study on the tourism spatial structure of the world cultural heritage sites in Quanzhou was conducted. Through kernel density analysis, it is concluded that the world cultural heritage sites in Licheng District and Fengze District of Quanzhou present a dense distribution in a planar form, while those in Jinjiang City and Shishi City show a dense point distribution, and in other counties and cities, they are dispersed in a point pattern. Issues exist such as an imbalanced overall spatial distribution of the heritage sites, insufficient exploitation of tourism resource advantages, inadequate exploration of heritage value and integration of resources, and a relatively low influence of the tourism brand. For this reason, a tourism spatial pattern of “one belt-three zones-six cores” is constructed in the approach of tourism spatial structure. According to this pattern, strategies such as optimizing the spatial layout, perfecting the design of tourism routes, deepening the integration of culture and tourism, strengthening the combination of virtual and real elements, and enhancing regional cooperation are proposed to enhance the cultural value and tourism brand effect of the world cultural heritage sites in Quanzhou and promote the flourishing development of tourism.

Smart community policy is an important basis for the high-quality development of smart communities. Quantitative research on smart community policies is of great significance to promote the construction of smart communities and improve the intelligent and intelligent level of community governance services. Based on the period from 2014 to 2023, 36 policies on smart communities was issued by the central and local governments, and text mining methods was used to build a smart community policy evaluation index system. At the same time, the PMC index model was used to select 11 representative policies for in-depth quantitative assessment. It is found that eight items are excellent policies, three are acceptable policies, and the average PMC index is 7.26, which shows that the smart community policy formulation is more scientific and reasonable. However, it still needs to be improved in terms of policy nature, timeliness, policy fields and policy content.

In the context of the global active response to climate change, the implementation of carbon peak, carbon neutral strategy and the active development of green and low-carbon economy have become the key issue of global sustainable development. By constructing double difference model, taking 30 provinces(due to the lack of data, the statistical data mentioned here do not include the Tibet Autonomous Region, the Hong Kong Special Administrative Region, the Macao Special Administrative Region and Taiwan Province)in China from 2005 to 2021as a research object of empirical analysis, it is found that China carbon emissions trading pilot policy can curb the carbon emissions of pilot areas by mainly promoting upgrading of industrial structure and enhancing the level of technological innovation, but due to the pilot provinces and cities area and pollution degree, effect heterogeneity, including the most obvious effect in Hubei province, suggestions are put forward based on the corresponding policy.

During the 14th Five-Year Plan period, Gansu Province has planned to construct the Lanzhou Metropolitan Area with Lanzhou City as the core and its adjacent municipal areas as the hinterland. With the rapid construction and layout of regional transportation facilities, the external transportation pattern of the Lanzhou Metropolitan Area has gradually taken shape. Based on the big data of population migration within the metropolitan area, the current situation of transportation between cities was studied, and the integrated layout of transportation facilities was optimized. The results of the characteristics of the inter-city travel network of residents constructed based on different time periods and different transportation modes indicate that the overall travel network of regional residents presents a “radiation-shaped” pattern centered on Lanzhou. The travel scale and stability of the routes between Lanzhou and the cities in the hinterland are large, while the connections between the hinterland cities are relatively weak. Compared with the daily period, the travel intensity during special holidays and the “Spring Festival travel rush” increases, but it is still dominated by large-scale daily routes. Road transportation is the main mode of regional travel. Conventional railways no longer meet the needs of rapid inter-city travel, while high-speed railways promote large-scale inter-city travel. Based on the current characteristics, optimization strategies for the transportation integration of the Lanzhou Metropolitan Area are proposed respectively from the three transportation modes of aviation, railways, and roads to promote regional coordinated development.

The migration trajectory of agricultural surface source pollution in watersheds and the factors influencing it are of great theoretical and practical significance. Further study of these factors would be beneficial in the prevention and control of surface source pollution in watersheds. An analysis of panel data on agricultural surface source pollution loads within the Yuanjiang River Basin in Hunan Province from 2013 to 2022 was analyzed to investigate the spatial and temporal characteristics of this phenomenon. The results demonstrate that the total nitrogen and total phosphorus pollutant loads in the Yuanjiang River Basin of Hunan Province from 2013 to 2022 exhibit a general decreasing trend, with a spatial pattern of “more in the east and less in the west”. Additionally, the intensity of pollutant loads demonstrates a decreasing trend, with a spatial decrease from a northeast-southwest line to both sides. The intensity of pollution loads is also observed to be decreasing, exhibiting a pattern of decline from the northeast to the southwest. Additionally, the migration trajectory of the center of gravity of the pollution loads is identified to be generally V-shaped, with an eastward migration.

There are 3 866 ancient and famous trees in Taiyuan, belonging to 30 families, 52 genera and 62 species, mainly Zizyphus jujuba, Sophora japonica, Platycladus orientalis, Pinus tabulaeformis and other native species. Through the analysis of nuclear density, it is found that 9 regions with higher estimated nuclear density are formed in the central and eastern regions of Taiyuan. The main gathering areas of jujube, Chinese sophora, platycypress and Pinus tabulatus, which have the largest number of ancient and famous trees, are located in the central, eastern and southern, southern, central and northeastern regions of Taiyuan respectively. Based on historical documents, the historical and cultural values of these four major tree species are expounded from the perspectives of folk customs, religious beliefs and ancient city history.

Water blocking damage is a common issue in the development of tight sandstone gas reservoirs, significantly impacting gas well production and reservoir recovery rates. Taking the gas reservoirs in the southern margin of Ordos as an example, the degree of water blocking damage in the gas reservoirs was analyzed, the typical production characteristics of gas wells with water blocking damage in tight gas reservoirs was discussed, and technologies were proposed for the prevention and treatment of reservoir water blocking. The research results indicate that the gas reservoirs in the southern margin of Ordos experience moderate to strong water blocking damage. After water blocking, gas wells exhibit production characteristics such as insignificant production increase after fracturing, inability to restore production after reopening the well following shutdown, and limited effectiveness of wellbore drainage measures. To effectively prevent and treat water blocking damage, comprehensive prevention and treatment methods are proposed, including the use of small-diameter coiled tubing to avoid premature fluid accumulation in gas wells, maintaining continuous and stable production, and implementing physicochemical processes to eliminate water blocking damage. Field test results demonstrate that the integrated application of these methods can effectively prevent and eliminate water blocking damage, thereby restoring gas well production.