生态环境学报2025，Vol.34Issue(2)：256-267,12.DOI:10.16258/j.cnki.1674-5906.2025.02.008
2008-2022年华北平原七省市AOD时空变化特征及主要影响因素分析
Spatial and Temporal Variation of AOD in Seven Provinces and Cities of North China Plain from 2008 to 2022 and Its Main Influencing Factors
摘要
Abstract
Utilizing the Optimal Parameter Geographical Detector(OPGD)and Pearson Correlation Coefficient,this study systematically examined spatiotemporal variations in Aerosol Optical Depth(AOD)across seven provinces and cities in the North China Plain from 2008 to 2022.This analysis aimed to identify the primary influencing factors at multiple spatiotemporal scales.Key findings include the following:1)Significant spatial heterogeneity in AOD was observed,with higher values in eastern Henan,western Shandong,and central-southern Hebei,and lower values in northern Hebei and western Henan.The AOD levels peaked in summer(0.57),followed by spring(0.53),winter(0.46),and autumn(0.44).2)In recent years,there has been a notable decline in AOD levels and marked improvement in air quality across the North China Plain.Regarding the stability and sustainability of AOD changes,the region at the intersection of Hebei,Shandong,and Henan provinces exhibited poor stability,characterized by anti-sustainability trends.Conversely,northern Hebei,Jiangsu,and Anhui provinces demonstrated relatively stable conditions,trending towards sustainability.3)The geographical detection results revealed that air temperature(0.607),population density(0.531),and precipitation(0.318)were the principal factors influencing AOD spatial differentiation.Over time,the influence of precipitation and NDVI increased,whereas that of wind speed and NDVI consistently showed minimal effects.Interaction detection indicated that temperature is closely associated with combinations of factors exhibiting strong interactions in each period,with the proportion of secondary industry output value playing a crucial role in these interactions.4)The correlation analysis showed that AOD changes in the study area were negatively correlated with temperature and precipitation in the natural environment.The socioeconomic factors revealed that AOD change was positively correlated with the proportion of primary and secondary industry output values and negatively correlated with GDP and urban population density.These findings suggest that the optimization and adjustment of industrial structures have significantly contributed to air pollution control in China without compromising economic development and urbanization.关键词
气溶胶光学厚度/时空变化/最优参数地理探测器/Pearson相关系数/华北平原Key words
aerosol optical depth/spatiotemporal variation/OPGD/pearson correlation coefficient/North China Plain分类
资源环境引用本文复制引用
赵乐鋆,王诗瑶,赵子渝,洪星,李夫星,吴佳仪,华婧妤..2008-2022年华北平原七省市AOD时空变化特征及主要影响因素分析[J].生态环境学报,2025,34(2):256-267,12.基金项目
国家重点研发计划项目(2022YFC3204104) （2022YFC3204104）
河北省自然科学基金青年项目(D2019205027) （D2019205027）
国家自然科学基金面上项目(42271121) （42271121）
大学生创新创业训练计划项目(202410094011) （202410094011）
