Construction And Application Of Vulnerability Evaluation Model Of Atmospheric Environment In Liaoning Province

With the rapid development of our country’s economic society,the ecological environment problem is increasing,and a large number of pollutants produced by human social activities are discharged into the atmospheric environment,they are deeply harmful to people’s physical and mental health.The 19 th National Congress of the Communist Party of China proposed to solidly promote the "Blue Sky Defense War",indicating the future development of the atmosphere.Atmospheric environment vulnerability assessment is an important method to quantitatively evaluate and analyze the vulnerability of the atmospheric environment system and its influencing factors.Therefore,in order to further study the vulnerability of the atmospheric environment in Liaoning province,Liaoning province and its 14 cities were taken as the research objects to establish a comprehensive evaluation system of atmospheric environment vulnerability based on the "exposure-sensitivity-adaptability"（ESA）framework to construct the comprehensive evaluation model of atmospheric environment vulnerability in Liaoning province.Using this model to comprehensively evaluate the vulnerability of atmospheric environment in Liaoning Province.According to the evaluation results,the time and space distribution and regional difference analysis of the vulnerability of the atmospheric environment of Liaoning Province are carried out,and finally propose targeted policy recommendations,in order to reduce the vulnerability of Liaoning province and provide technical support for atmospheric environmental quality.The main findings are as follows:（1）According to the framework of “Exposure-Sensitivity-Adaptability”（ESA）index system,the index system of atmospheric environmental vulnerability in Liaoning province was established by referring to previous research results and combining with the actual situation of Liaoning Province.The indicator system includes 8 primary indicators and 23 secondary indicators,and innovatively introduces green development as a primary indicator into the adaptability indicator layer.（2）Combine with the coefficient of variation-G1 and Fuzzy Comprehensive Evaluation Method for the evaluation and influencing factors of the overall atmospheric environment of Liaoning province,supplementary analysis by the vulnerability index method,the method reflects the objective information of the decision maker and objective information of the data,making the evaluation results more real and effective.In addition,the vulnerability of 14 levels of panel data in Liaoning province was comprehensively evaluated by the timing of the sequential global principal component analysis（GPCA）.The GPCA combines time series data and classic primary component analysis.（3）At time,the vulnerability of the overall atmospheric environment of Liaoning Province in 2000-2018 has gradually weakened,but is always in the state of vulnerability.In 2005-2007 and 2012-2014,the vulnerability of atmospheric environment was significantly enhanced,and the main influencing factors were exposed and adaptive.ECO development is the important factor to reduce the vulnerability of Liaoning province,which has an important impact on regional people and natural harmony development.（4）In space,the vulnerability of atmospheric environment in 2015-2019 in Liaoning province has a weakening trend,but regional development still has strong imbalance.Eastern,Western,Southern,and Northern regional differences have first increased and then decreased,and the main source of difference is the difference between the regions.Atmospheric environmental pollution factor mainly reflects NO2,PM2.5,PM10,SO2 average concentration and AQI,and atmospheric environmental pollution factor is the main factor affecting the spatial partality of the vulnerability of atmospheric environment in the city of Liaoning Province.Therefore,Liaoning Province should adopt the source of air pollution,strengthen scientific and technological innovation,improve energy utilization levels,formulate accurate laws and regulations,balance population structures to reduce the level of vulnerability between the various regions in the province.