Dear Editor,The true frogs classified under the genus Rana, with widespread distribution in Eurasia and North America,constitute a varied and intricate group (Yuan et al., 2016;Chen et al., 2022). In total, 52 species...Dear Editor,The true frogs classified under the genus Rana, with widespread distribution in Eurasia and North America,constitute a varied and intricate group (Yuan et al., 2016;Chen et al., 2022). In total, 52 species within this genus have been documented (IUCN, 2024), with 28 of those species found in China (Amphibia China, 2024).展开更多
At 20:08 on September 18,2024,Beijing time,an earthquake of magnitude 4.7 occurred in Feidong,Anhui Province(31.98°N,117.6°E).The China Earthquake Early Warning Network presented the first early warning resu...At 20:08 on September 18,2024,Beijing time,an earthquake of magnitude 4.7 occurred in Feidong,Anhui Province(31.98°N,117.6°E).The China Earthquake Early Warning Network presented the first early warning results 8.9 s after the earthquake.The China Earthquake Networks Center(CENC)released the automatic rapid report results 163 s after the earthquake and the official rapid report results 8 min after the earthquake.At the same time,the CENC reported a series of emergency products,including source parameters,seismic tectonics,historical earthquakes,focal mechanism,instrument seismic intensity and predicted intensity.The results showed that the earthquake was located at the junction of the southern section of the Tanlu Fault and the Feizhong Fault,with aftershocks distributed in the NEE direction.The focal mechanism solution indicates that the earthquake is essentially a strike-slip event.The predicted intensity in the vicinity of the epicenter reaches up to VI,involving 23towns that cover an area of about 1359 km^(2).Only one station near the epicenter shows a peak acceleration value greater than the fortification standard of the area,which may cause slight damage to some adjacent houses,consistent with the actual damage to buildings.展开更多
This study aims to systematically explore the differences in health status between empty-nest and non-empty-nest older adults and further analyze the potential impact of empty-nest and non-empty-nest status on their p...This study aims to systematically explore the differences in health status between empty-nest and non-empty-nest older adults and further analyze the potential impact of empty-nest and non-empty-nest status on their physical and mental health.The study surveyed older adult populations in Anhui Province(N=379,average age=69.51 years)to assess their mental and physical health.Correlation analysis,multiple linear regression analysis,and propensity score matching were used to quantify the health differences between empty-nest and non-empty-nest older adults.Multiple linear regression analysis showed that empty-nest status has a significant positive impact on mental health but a negative impact on physical health.Propensity score matching analysis further validated the main findings of the multiple regression analysis.These findings should be interpreted within specific contexts and conditions,considering individual characteristics and historical perspectives,and fully considering the actual circumstances of the respondents.展开更多
Anhui Province is a major agricultural province in eastern China,and the development of rural economy plays an important role in improving the overall economic level of the province.In recent years,the extensive use o...Anhui Province is a major agricultural province in eastern China,and the development of rural economy plays an important role in improving the overall economic level of the province.In recent years,the extensive use of digital technologies and ongoing financial innovations have contributed to the rapid growth of digital inclusive finance in rural areas of Anhui,significantly reducing the lack of financial services in these regions.The main objective of this paper is to explore in depth how digital inclusive finance impacts the rural economy of Anhui Province and to provide practical policy recommendations based on these findings.展开更多
深入解析资源型城市生态系统服务供需关系、识别生态管理分区对优化资源型城市生态修复策略、完善国土空间规划体系以及促进资源高效配置具有重要意义。采用生态系统服务和权衡综合评估(Integrated Valuation of Ecosystem Services and...深入解析资源型城市生态系统服务供需关系、识别生态管理分区对优化资源型城市生态修复策略、完善国土空间规划体系以及促进资源高效配置具有重要意义。采用生态系统服务和权衡综合评估(Integrated Valuation of Ecosystem Services and Tradeoffs,InVEST)仿真模型、皮尔逊系数及四象限模型,揭示安徽省资源型城市水源涵养(WC)、固碳(CS)及粮食(FP)生态系统服务供需的时空变化、权衡协同关系及空间匹配模式,并据此构建生态管理分区框架。结果显示:(1)在2011—2023年,安徽省资源型城市生态系统服务中WC的供给和供需指数均呈上升趋势,需求呈下降趋势;CS的供给和供需指数均呈下降趋势,需求呈上升趋势;FP的供给、需求和供需指数均呈上升趋势;在空间分异上,WC供需指数呈现南高北低梯度格局,CS供需指数空间分布较为均衡,FP供需指数呈现南低北高格局。(2)就供需指数而言,WC生态系统服务与CS为协同关系,FP与WC、CS均为权衡关系。WC、CS及FP均以低-低空间匹配模式为主。(3)粮食生产区为主要功能区,养护为主要管理策略,重点保护为主要管控等级,粮食重点养护区为生态管理分区主要结果。研究可为缓解资源型城市“生态-生产”矛盾、优化国土空间保护格局及促进生态资产价值转化提供决策参考依据。展开更多
基金supported by the National Natural Science Foundation of China (No.31970499 to Liuwang NIE)。
文摘Dear Editor,The true frogs classified under the genus Rana, with widespread distribution in Eurasia and North America,constitute a varied and intricate group (Yuan et al., 2016;Chen et al., 2022). In total, 52 species within this genus have been documented (IUCN, 2024), with 28 of those species found in China (Amphibia China, 2024).
基金supported by National Natural Science Foundation of China(52122811)。
文摘At 20:08 on September 18,2024,Beijing time,an earthquake of magnitude 4.7 occurred in Feidong,Anhui Province(31.98°N,117.6°E).The China Earthquake Early Warning Network presented the first early warning results 8.9 s after the earthquake.The China Earthquake Networks Center(CENC)released the automatic rapid report results 163 s after the earthquake and the official rapid report results 8 min after the earthquake.At the same time,the CENC reported a series of emergency products,including source parameters,seismic tectonics,historical earthquakes,focal mechanism,instrument seismic intensity and predicted intensity.The results showed that the earthquake was located at the junction of the southern section of the Tanlu Fault and the Feizhong Fault,with aftershocks distributed in the NEE direction.The focal mechanism solution indicates that the earthquake is essentially a strike-slip event.The predicted intensity in the vicinity of the epicenter reaches up to VI,involving 23towns that cover an area of about 1359 km^(2).Only one station near the epicenter shows a peak acceleration value greater than the fortification standard of the area,which may cause slight damage to some adjacent houses,consistent with the actual damage to buildings.
基金Shanghai Philosophy and Social Science Planning General Project“Research on the Mechanism of Population Aging in the Yangtze River Delta Urban Agglomeration on Economic Growth”(2023ZSH002).
文摘This study aims to systematically explore the differences in health status between empty-nest and non-empty-nest older adults and further analyze the potential impact of empty-nest and non-empty-nest status on their physical and mental health.The study surveyed older adult populations in Anhui Province(N=379,average age=69.51 years)to assess their mental and physical health.Correlation analysis,multiple linear regression analysis,and propensity score matching were used to quantify the health differences between empty-nest and non-empty-nest older adults.Multiple linear regression analysis showed that empty-nest status has a significant positive impact on mental health but a negative impact on physical health.Propensity score matching analysis further validated the main findings of the multiple regression analysis.These findings should be interpreted within specific contexts and conditions,considering individual characteristics and historical perspectives,and fully considering the actual circumstances of the respondents.
文摘Anhui Province is a major agricultural province in eastern China,and the development of rural economy plays an important role in improving the overall economic level of the province.In recent years,the extensive use of digital technologies and ongoing financial innovations have contributed to the rapid growth of digital inclusive finance in rural areas of Anhui,significantly reducing the lack of financial services in these regions.The main objective of this paper is to explore in depth how digital inclusive finance impacts the rural economy of Anhui Province and to provide practical policy recommendations based on these findings.
文摘深入解析资源型城市生态系统服务供需关系、识别生态管理分区对优化资源型城市生态修复策略、完善国土空间规划体系以及促进资源高效配置具有重要意义。采用生态系统服务和权衡综合评估(Integrated Valuation of Ecosystem Services and Tradeoffs,InVEST)仿真模型、皮尔逊系数及四象限模型,揭示安徽省资源型城市水源涵养(WC)、固碳(CS)及粮食(FP)生态系统服务供需的时空变化、权衡协同关系及空间匹配模式,并据此构建生态管理分区框架。结果显示:(1)在2011—2023年,安徽省资源型城市生态系统服务中WC的供给和供需指数均呈上升趋势,需求呈下降趋势;CS的供给和供需指数均呈下降趋势,需求呈上升趋势;FP的供给、需求和供需指数均呈上升趋势;在空间分异上,WC供需指数呈现南高北低梯度格局,CS供需指数空间分布较为均衡,FP供需指数呈现南低北高格局。(2)就供需指数而言,WC生态系统服务与CS为协同关系,FP与WC、CS均为权衡关系。WC、CS及FP均以低-低空间匹配模式为主。(3)粮食生产区为主要功能区,养护为主要管理策略,重点保护为主要管控等级,粮食重点养护区为生态管理分区主要结果。研究可为缓解资源型城市“生态-生产”矛盾、优化国土空间保护格局及促进生态资产价值转化提供决策参考依据。
