山西省PM_(2.5)时空特征及其影响因素的地理探测  

Geographical Exploration of Temporal and Spatial Characteristics of PM_(2.5) in Shanxi Province and Its Influencing Factors

作　　者：田苗 郑浩浩 易文利[1,2] 冯诗格[1] 刘引鸽 TIAN Miao;ZHENG Haohao;YI Wenli;FENG Shige;LIU Yinge(College of Geography and Environment,Baoji University of Arts and Sciences,Baoji 721013,Shaanxi China;Shaanxi Key Laboratory of Disaster Monitoring and Mechanism Simulation,Baoji 721013,Shaanxi China)

机构地区：[1]宝鸡文理学院地理与环境学院,陕西宝鸡721013 [2]陕西省灾害监测与机理模拟重点实验室,陕西宝鸡721013

出　　处：《河南科学》2022年第9期1495-1501,共7页Henan Science

基　　金：国家自然科学基金项目(41771048);陕西省科技厅计划项目(2015JQ4114);宝鸡市科技计划项目(2018JH-15);陕西省重点学科自然地理学联合资助;宝鸡文理学院项目(YJSCX20YB27)。

摘　　要：基于山西省11个地级市2016—2019年全年的逐时监测数据,采用克里金空间插值技术和地理探测器等方法对PM浓度时空变化及驱动因素展开研究.结果表明:①2016—2019年山西省PM年均浓度值先增后减,“蓝天保卫战”取得一定成效;污染空间格局呈东北向西南递增的规律,季节浓度变化总体呈“冬高夏低,春秋过渡”的规律,月均浓度呈“单峰型”波动变化.②因子探测器分析结果表明,人口密度、人均GDP和民用车数量对PM解释力最强,均超过0.7,表明人类活动是引起空气污染的主要因素.③交互探测分析表明所有影响因素对PM变化的交互作用均大于单一影响因素的独自作用.Based on the hourly monitoring data of 11 prefecture-level cities in Shanxi Province from 2016 to 2019,the spatial temporal variation and driving factors of PMconcentration were studied by using Kriging spatial interpolation technology and Geographic detector.The results showed that:①The average annual concentration of PMin Shanxi Province increased first and then decreased from 2016 to 2019,indicating some success in the“battle to protect the blue sky”.The spatial pattern of pollution increased from northeast to southwest.The variation of seasonal concentration was“high in winter and low in summer,seasonal transition in spring and autumn”,and the monthly mean concentration fluctuated in a“single peak”type.②Factor detector results showed human activities were the main factors causing air pollution.Population density,per capita GDP and the number of civilian vehicles were the high impact factors of PMpollution,with q value all exceeding 0.7.③The interaction detector results indicated that the interaction impact of all influencing factors on PM_(2.5)concentration was greater than that of single influencing factor alone.

关 键 词：PM_(2.5) 山西省 时空特征 地理探测器 

分 类 号：X51[环境科学与工程—环境工程]