吉林省县域雾霾污染空间演化格局及其因素分析

结合数理统计及空间分析方法,以PM2.5平均浓度值为指标,对吉林省县域雾霾污染演化特征及影响因素进行分析。结果显示:(1)吉林省县域雾霾污染总体趋于严重,绝对与相对差异均呈扩大趋势。(2)县域雾霾污染呈现出"中部高、两端低"的峰型格局,空间集聚趋势由增强逐步减弱。(3)雾霾污染对经济、人口的敏感性较强,不同地区雾霾污染的影响因子具有方向性和异质性。产业结构转型、人口格局优化等是推动吉林省县域雾霾治理的重要途径。

Analysis on Spatial Evolution Pattern and Its Factors of County Haze Pollution in Jilin Province

Based on mathematical statistics and spatial analysis methods,the PM2.5 average concentration was taken as the index to ana lyze the evolution characteristics and influencing factors of county haze pollution in Jilin Province. The results showed that:(1)Although the haze pollution in the county area tended to be serious on the whole,the absolute and relative differences showed an expanding trend.(2)The county haze pollution presented a peak pattern of"high in the middle part and low at both ends",and the spatial agglomeration trend gradually weak ened from enhancement.(3)Haze pollution was highly sensitive to economy and population,and the influencing factors of haze pollution in differ ent regions were directional and heterogeneous. The transformation of industrial structure and the optimization of population pattern were impor tant ways to promote the haze governance of county in Jilin province.