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The Beijing-Tianjin-Hebei integration plan rose to the status of a national-level strategy in 2014. This paper provides a deep analysis of the Beijing-Tianjin-Hebei area's inter-city commuter big data. This research analyzed the overview of spatial structure, polycentric structure, hierarchical structure and clustering characteristics of the BTH based on network analysis methods. It reveals that the inter-city commuter network exhibits clear polycentric characteristics, with Beijing acting as the central hub. The degree of network correlation between cities in Tianjin and Hebei is notably low, indicating that the flow of people primarily revolves around Beijing, while interactions between other cities remain limited. Therefore, it is necessary to further decentralize Beijing's non-capital core functions. The level of connectedness among the areas surrounding the Bohai Rim is not very high, and it has not developed the coastal advantage. The cooperation could be strengthed among the cities within Bohai Rim. The polycentric structure has initially taken shape, but it exhibits obvious polarization characteristics. It is necessary to strengthen the interaction of talents between cities to form secondary central units in BTH. [ABSTRACT FROM AUTHOR]

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The 2022 Winter Olympics were held in the three competition zones of Beijing, Yanqing and Zhangjiakou, China. The venues of this Winter Olympics were scattered and the terrain was complex. Moreover, the medical resources of Hebei and Beijing were relatively unbalanced. In the medical security of major events, the connection between first aid and in-hospital processes is of the utmost importance to rescue quality. 5th generation mobile network (5G) applications in medical scenarios are on the rise. It would be of great relevance to fully use 5G's low-latency and high-speed features to share the process information of patients, ambulance personnel, and the destination hospital's rescue team at emergency scenes and in transportation, improving rescue efficiency. This paper proposes a system scheme of cross-institutional emergency health information sharing based on 5G and augmented reality wearable devices. It also integrates the construction method of monitoring and other sign data sharing, in addition to testing the proposed scheme's service quality in 5G environments. In the deployment area of the 5G emergency medical rescue information sharing scheme for the Beijing Winter Olympic Games, we selected two designated medical support institutions for testing. The test adopted a combination of fixed-point and driving tests to experiment on the service data, voice service, and streaming media indicators. The 5G signal's coverage rate was close to 100%, the standalone connection's success rate was 100%, and the drop rate was 0. The average downlink rate of multiple scenarios was 620mbps, and the average uplink rate of 5G was over 71.8mbps, which is higher than the average 5G level in China. The downlink rate was more than 20 times larger than the 4th generation mobile network (4G) rate. This study's proposed scheme demonstrates the importance of 5G applications in emergency response and support, in addition to providing a suitable scheme for the integration of 5G networks in the medical scene. [ABSTRACT FROM AUTHOR]

The use of Internet data to carry out geographic study has become an academic hotspot in recent years. We referred to the "Zhongke Beauty Index" and crawled 530 thousand POIs (POI: Point of interest) to carry out regional construction evaluation in Beijing-Tianjin-Hebei region. The results showed that: (1) Geographic big data provided detailed information for fine-grained regional research, and the POI evolution tree model revealed the shortcomings of regional development. (2) The Beijing-Tianjin-Hebei comprehensive beauty index in 2019 was 0.21, and Beijing and Tianjin are far ahead of Hebei in terms of ecology and culture. Specifically, the POI types of eco-environment construction of research area were single; the industrial development construction presented a trend of multi-center gathering; the social harmony construction has formed a gathering circle in Beijing; the eastern and central regions were the dominant regions in terms of institutional improvement construction; and the cultural inheritance construction was the shortest board in research area. (3) The evaluation ranking was sensitive to the population and the size of the area in Beijing-Tianjin-Hebei region. When evaluating, the uncertainty caused by the characteristics of indicators and POIs should be fully considered. This article indicated the shortcomings in five dimensions of Beijing-Tianjin-Hebei region and can provide reference for the evaluation of regional construction. [ABSTRACT FROM AUTHOR]

As a politically and culturally important city cluster, the Beijing–Tianjin–Hebei region (BTH) has huge electricity and water consumption, while the local power generation capacity and water resources may not be sustainable long term according to the current power generation ratio. We introduced up-to-date strategic policies in China, carbon peaking and carbon neutrality (dual carbon goals), to assess their impact on environmental protection and economic development. Thus, we constructed a dynamic multi-regional computable general equilibrium model to simulate these changes in BTH. We designed four carbon reduction scenarios to explore the impact of policies including carbon taxes, investment, and renewable energy subsidies individually or combined. The findings reveal that implementing these policies together can increase the proportion of renewable energy in power generation to 17.2% (Beijing), 9.4% (Tianjin), and 33.2% (Hebei) by 2060. Under various policy scenarios, the Tax Scenario shows the largest water withdrawal savings, while the Investment Scenario shows the largest GDP growth by 2060. The combined implementation of these policies may minimize the negative impact on the economy while developing an environmentally friendly region. The results of the Combination Scenario are closest to carbon neutrality, narrowing the gap to 10.71%, 9.98%, and 9.85%, respectively. Conservation (water and electricity) and carbon reduction can provide significant support for carbon neutrality and sustainable development strategies. This study contributes to the evaluation of mitigation policies in BTH and provides a concrete policy option to achieve carbon neutrality. [ABSTRACT FROM AUTHOR]

Ecological security and sustainable utilization of water resources have become increasingly important focal areas in today's conversation about water resource management. Ecological footprint models of water resources are commonly used to analyze these factors; however, traditional models do not consider regional and interannual differences. Here, an improved model by calculating water resource equilibrium factors (γw) was used to simulate the water resources ecological footprint (EFw) and water resources ecological carrying capacity (ECw) of Beijing, Tianjin, and Hebei. Ecological deficit and surplus (EDS), water load index (WRL), and ecological footprint of water resources per 104 Chinese yuan (WFG) were used to evaluate sustainable water usage. The findings reveal that γw is discrepant in across regions and years, as were EFw and ECw. Over the course of the study, EFw and ECw of Beijing–Tianjin–Hebei increased by > 25 and 46%, respectively. The sustainable utilization of water resources in the Beijing–Tianjin–Hebei region was found to be poor, but the utilization efficiency had improved through time. Finally, an uncertainty analysis was performed to determine how to improve sustainable development of water resources in Beijing–Tianjin–Hebei. Results suggested that reducing the discharge of sewage could reduce EFw and reducing the water consumption per 10,000 yuan of GDP could reduce WRL. This study provides valuable support for the sustainable utilization of water resources and the protection of ecological security in the Beijing–Tianjin–Hebei region. [ABSTRACT FROM AUTHOR]

Projecting the future extreme high-temperature risk under the background of global warming and urbanization is essential to the collaborative development of Beijing, Tianjin, and Hebei (BTH). In this study, based on the global climate simulation data from the Coupled Model Intercomparison Project Phase 6 (CMIP6) and the fine land-cover data, we use the Weather Research and Forecast (WRF) model coupled with the building effect parameterization (BEP) and building energy model (BEM) at 3-km grid spacing to project the changes in the intensity, frequency, and risk of extreme high temperature over the BTH urban agglomeration. The results show that under the future shared socioeconomic pathway scenario (SSP245), the average extreme high-temperature intensity (EHI) in the BTH will increase by 0.71 °C and 2.12 °C in the middle and late twenty-first century, respectively, compared with that in the reference period (2005–2014), which are 0.23 ℃ and 0.58 ℃ more than that only considering global warming, respectively. The average extreme high-temperature frequency (EHF) will increase by 99 h and 200 h, 53 h and 72 h more than that considering only climate change, respectively. The average high-temperature risk in the BTH for 20-year and 50-year return periods will increase by 1.9 times and 2.4 times in the middle twenty-first century, respectively, and expand to 8.0 times and 12.9 times in the late twenty-first century, respectively. Therefore, it is necessary to take adaptation approaches to reduce the future risk of extreme high-temperature events in the BTH. [ABSTRACT FROM AUTHOR]

The Beijing-Tianjin-Hebei region, with the capital Beijing as the core, carries a profound geo-culture and gathers numerous intangible cultural heritages. Studying the spatial distribution characteristics and influencing factors of intangible cultural heritage can help to propose positive suggestions for protection and development from the perspective of sustainable development. Taking 329 national intangible cultural heritages in Beijing-Tianjin—Hebei as the research objects, and using ArcGIS spatial analysis technology, combined with methods such as kernel density analysis, standard deviation ellipse and geographical detector, to visualize the spatial distribution of intangible cultural heritages and explore the influencing factors of their distribution. The results show that: (1) the distribution of intangible cultural heritage in Beijing-Tianjin-Hebei is not balanced, mainly concentrated in the central and southern regions, and three high-density core circles are formed in Beijing, Tianjin, and Handan-Xingtai in Hebei Province, showing large differences in spatial distribution density; (2) Traditional techniques, traditional arts, dramatic balladry, sports, music, and medicine show the characteristics of aggregated distribution. folkways, dance, and drama show the characteristics of random distribution. Folk literature shows the characteristics of uniform distribution; (3) The Cultural Development Period is an important evolutionary turning point in the spatial and temporal distribution of intangible cultural heritage in Beijing-Tianjin-Hebei, as well as an accelerating period in the development of intangible cultural heritage, and completes the transformation from decentralized distribution to localized aggregation distribution. In The Period of Regional Cultural Integration, the peak value is reached; (4) Economic development and social culture have the greatest influence on the spatial distribution of intangible cultural heritage in Beijing-Tianjin-Hebei, while the influence of physical environment is relatively small. [ABSTRACT FROM AUTHOR]

The spatial distribution of the urban agglomeration population has changed increasingly in rapid urbanization. It affects the urban economy, environment, transportation, and so on. Therefore, it is of great significance to understand the changes in the spatial distribution of population in urban agglomerations. This study used methods such as population center of gravity migration and Gini coefficient to explore changes in the spatial distribution of urban populations. The study found that the population center of the Beijing-Tianjin-Hebei urban agglomeration first migrated toward Beijing and then away from Beijing. During this process, the Gini coefficient increased from 0.62 to 0.64 and then decreased to 0.58, indicating that the population balance of the urban agglomeration firstly increased and then decreased. This result is consistent with the conclusion that we have established a simulated urban agglomeration for theoretical derivation. That is: in the early stage of urban agglomeration development, the population migrated to the central city; as the population of the central city became saturated, the urban agglomeration developed to a mature stage, and the population began to migrate to the peripheral cities. In this process, the population distribution center of urban agglomeration gradually shifted from central towns to peripheral towns. The degree of equilibrium in the spatial distribution of population has undergone an inverted u-shaped transition from non-equilibrium to equilibrium. [ABSTRACT FROM AUTHOR]

Previous studies indicate that the incidence of bacillary dysentery is closely related to meteorological factors. However, the impact of temperature and the spatial heterogeneity of the disease in regions of unbalanced socioeconomic development remains unclear. Therefore, this research collected data for 29,639 daily bacillary dysentery cases in children under 5 years of age, as well as the meteorological variables from China's Beijing–Tianjin–Hebei region, to analyze the spatial pattern of bacillary dysentery and reveal its nonlinear association with temperature. The SatScan method was employed first, to detect the spatial heterogeneity of the disease risk, and then the distributed lag nonlinear model (DLNM) was used to analyze the relationships between the daily minimum, mean, and maximum temperatures and bacillary dysentery in the stratified heterogeneous regions. The results indicated that bacillary dysentery incidence presented statistically significant spatial heterogeneity. The area of highest risk was found to be Beijing and its neighboring regions, which have high population densities. There was also a positive association between bacillary dysentery and temperature. Hotter temperatures were accompanied by higher relative risks. In the most likely spatial cluster region, the excess risk (ER) values for a 1°C rise in minimum, mean, and maximum temperatures above the median were 4.65%, 11.30%, and 19.21%, respectively. The effect of temperature on bacillary dysentery peaked at a lag of 3 to 4 days. The findings of this study will aid risk assessments and early warning systems for bacillary dysentery. [ABSTRACT FROM AUTHOR]

The risk of urban waterlogging is increasing with global climate change and rapid urbanization, especially for urban agglomeration like Beijing-Tianjin-Hebei (BTH) region. In this study, we obtain the urban waterlogging risk index of the BTH urban agglomeration and considering the hazard, exposure, and vulnerability factors, we assess waterlogging risks in the built-up area of the BTH for two periods (1961–1990 and 1991–2019). We analyze the economic and social data as well as the climate data from 149 meteorological observation stations in Beijing, Tianjin, and Hebei provinces. The results showed that for the two considered periods, the area with the lowest (level 1) waterlogging risk has decreased by nearly 50%, and the second-lowest (level 2) ones have increased by nearly 55%. Although the area higher risk has decreased by 17%, the difference among each city is quite large. Among them, the areas at level 3 have increased by 52% and 51% in Beijing and Handan, respectively. During the years 1991–2019, the areas with risks of level 3 and above are mainly found in Beijing, Tianjin, Shijiazhuang, Qinhuangdao, Handan, and Xingtai. Among them, Beijing has the highest waterlogging risk. In particular, the areas with risk of level 3 and above have increased by 76% in the past 30 years. The areas with the highest risk level (level 4) of waterlogging in Beijing were mostly found in the downtown areas (Haidian, Chaoyang, Dongcheng, and Xicheng districts). This study provides a scientific background for urban waterlogging risk management and implementation of the national and regional strategy for the development of the BTH region. [ABSTRACT FROM AUTHOR]