Based on the monitoring data of ambient air quality and meteorological observation data,the characteristics and meteorological influencing factors of air pollution in Luojiang District of Deyang City from 2018 to 2022...Based on the monitoring data of ambient air quality and meteorological observation data,the characteristics and meteorological influencing factors of air pollution in Luojiang District of Deyang City from 2018 to 2022 were analyzed.The results show that from 2018 to 2022,the main air pollutants affecting the air quality of Luojiang District of Deyang City were PM_(2.5) and PM_(10),and the primary pollutant on heavy pollution days was basically PM_(2.5).PM_(2.5) and PM_(10) pollution showed obvious seasonal differences,and PM_(2.5) concentration exceeded the limit mainly in spring and winter,among which it was the most serious in early spring,especially in January and February,followed by December.PM_(10) exceeding the standard had a high seasonal correlation with PM_(2.5) exceeding the standard,mainly in spring and winter,among which it was the most serious in winter,especially in December,followed by January.PM_(2.5) and PM_(10) pollution showed an overall weakening trend.PM_(2.5) and PM_(10) concentration were closely related to meteorological factors such as temperature,relative humidity,wind speed,precipitation and air pressure,and were mainly affected by rainfall.展开更多
The display and utilization of historic culture are one of the ways for towns to manifest characteristics, carry forward traditions, and promote competitiveness. As the important part of urban conservation planning, i...The display and utilization of historic culture are one of the ways for towns to manifest characteristics, carry forward traditions, and promote competitiveness. As the important part of urban conservation planning, it is also a hot point in the theoretical research on the historic town protection in China. The "context" of towns refers to the essential connection between human being, natural environment, built environment, and social cultural background in the course of historical development and specific conditions. From the perspective of context, this paper put forward construction strategies for the display and utilization system of historic culture combined with the current situation of historical protection of small towns. Historical changes and contextual elements were analyzed based on the literature research and field investigation of Luojiang District to carry out the design of historical and cultural display structures, tour routes, and presentation modes.展开更多
文摘Based on the monitoring data of ambient air quality and meteorological observation data,the characteristics and meteorological influencing factors of air pollution in Luojiang District of Deyang City from 2018 to 2022 were analyzed.The results show that from 2018 to 2022,the main air pollutants affecting the air quality of Luojiang District of Deyang City were PM_(2.5) and PM_(10),and the primary pollutant on heavy pollution days was basically PM_(2.5).PM_(2.5) and PM_(10) pollution showed obvious seasonal differences,and PM_(2.5) concentration exceeded the limit mainly in spring and winter,among which it was the most serious in early spring,especially in January and February,followed by December.PM_(10) exceeding the standard had a high seasonal correlation with PM_(2.5) exceeding the standard,mainly in spring and winter,among which it was the most serious in winter,especially in December,followed by January.PM_(2.5) and PM_(10) pollution showed an overall weakening trend.PM_(2.5) and PM_(10) concentration were closely related to meteorological factors such as temperature,relative humidity,wind speed,precipitation and air pressure,and were mainly affected by rainfall.
文摘The display and utilization of historic culture are one of the ways for towns to manifest characteristics, carry forward traditions, and promote competitiveness. As the important part of urban conservation planning, it is also a hot point in the theoretical research on the historic town protection in China. The "context" of towns refers to the essential connection between human being, natural environment, built environment, and social cultural background in the course of historical development and specific conditions. From the perspective of context, this paper put forward construction strategies for the display and utilization system of historic culture combined with the current situation of historical protection of small towns. Historical changes and contextual elements were analyzed based on the literature research and field investigation of Luojiang District to carry out the design of historical and cultural display structures, tour routes, and presentation modes.
