京津冀大气污染传输通道区大气污染时空格局研究

摘要：客观理解京津冀大气污染传输通道城市(“2+26”城市)空气污染时空格局对于区域大气污染联合防治具有重要意义.本研究采用遥感数据反演的
PM2.5 浓度产品,利用趋势分析法和重心分析法,揭示了京津冀城市大气污染传输通道区 2000~2015 年大气污染时空格局演化特征.结果表明:(1)区域 PM2.5 平均浓度整体呈现出太行山脉区域较低,太行山脉以东较高的格局,城镇地区明显高于周边地区.(2)2000~2015 年区域 PM2.5 年均浓度总体呈增加 趋势,主要表现在 2000~2007 年,呈显著增加趋势的面积占全区的 88.48%,之后呈稳定状态.(3)区域 PM2.5 污染重心位于衡水、邢台和德州 3 市交界处, 区域北部大气污染较严重.本研究可为京津冀及周边地区大气污染防治政策制定和措施实施提供参考与支持.
中国环境科学 2019,39(2)：449~458
பைடு நூலகம்
China Environmental Science
京津冀大气污染传输通道区大气污染时空格局研究
彭 玏 1,2,赵媛媛 1,2*,赵吉麟 1,2,高广磊 1,2,丁国栋 1,2 (1.北京林业大学水土保持学院,水土保持国家林业局重点实验室,
北京 100083；2.宁夏盐池毛乌素沙地生态系统国家定位观测研究站,宁夏 盐池 751500)
关键词：京津冀大气污染传输通道；“2+26”城市；PM2.5；时空格局
中图分类号：X513
文献标识码：A
文章编号：1000-6923(2019)02-0449-10
Spatiotemporal patterns of air pollution in air pollution transmission channel of Beijing-Tianjin-Hebei from 2000 to 2015. PENG Le1,2, ZHAO Yuan-yuan1,2*, ZHAO Ji-lin1,2, GAO Guang-lei1,2, DING Guo-dong1,2 (1.Key Laboratory of soil and water conservation State Forestry Administration, College of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, China；2.Yanchi Ecology Research Station of the Mu Us Desert, Yanchi, Ningxia 751500, China). China Environmental Science, 2019,39(2)：449~458 Abstract：It is of great significance for preventing and controlling regional air pollution to understand spatiotemporal patterns of air pollution in air pollution transmission channel (also known as “2+26” cities) of the Beijing-Tianjin-Hebei area. Spatial pattern and temporal variation of air pollution in “2+26” cities was revealed with the satellite-derived PM2.5 concentration data from 2000 to 2015 and the linear trend analysis and the barycenter analysis. The main findings are as follows: PM2.5 concentration was lower in the west and higher in the east with the Taihang Mountain as the demarcation. And that in the center of the city was higher than that in surrounding regions. The concentration of PM2.5 generally showed an increasing trend from 2000 to 2015, especially during 2000~2007. The area with significant increasing trend during 2000~2007 accounted for 88.48% of the total area. The gravity center of PM2.5 pollution was located at the junction of Hengshui, Xingtai and Dezhou, which indicated that the pollution in the north of the study area was more serious. This study could provide reference and support for policy formulation and implementation of air pollution control measures in Beijing-Tianjin-Hebei regions. Key words：air pollution transmission channel of Beijing-Tianjin-Hebei；“2+26” cities；PM2.5；spatiotemporal pattern