主管单位:中国科学技术协会
主办单位:中国地理学会
承办单位:华东师范大学

World Regional Studies ›› 2022, Vol. 31 ›› Issue (1): 130-141.DOI: 10.3969/j.issn.1004-9479.2022.01.2020212

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Analysis on the spatial-temporal evolution characteristics of PM2.5 and its influencing factors in the Yellow River Basin

Heng LI1(), Yan HAN2,3()   

  1. 1.School of Business, East China University of Science and Technology, Shanghai 200030, China
    2.School of Economics and Management, Lanzhou Jiaotong University, Lanzhou 730070, China
    3.Institute of Geographic Sciences and Resources, Chinese Academy of Sciences, Beijing 100101, China
  • Received:2020-04-15 Revised:2020-06-17 Online:2022-01-15 Published:2022-01-25
  • Contact: Yan HAN

黄河流域PM2.5时空演变特征及其影响因素分析

李衡1(), 韩燕2,3()   

  1. 1.华东理工大学商学院,上海 200030
    2.兰州交通大学经济管理学院,兰州 730070
    3.中国科学院地理科学与资源研究所,北京 100101
  • 通讯作者: 韩燕
  • 作者简介:李衡(1995-),男,博士研究生,研究方向为区域经济学,E-mail:henough@163.com
  • 基金资助:
    国家自然科学基金(72163020);教育部人文社会科学研究项目(18YJCZH044)

Abstract:

Taking the remote sensing inversion data of PM2.5 from 2000 to 2017, this paper analyzed the spatial-temporal evolution characteristics and influencing factors of PM2.5 in the Yellow River Basin by using the methods of standard deviation ellipse and geographical detector. The major results are showed as follows. Firstly, PM2.5 concentration in the Yellow River Basin shows a trend of rapid increase and then fluctuated in 2000-2007, so the situation of air pollution is not optimistic. Secondly, the spatial aggregation of PM2.5 in the Yellow River Basin is significant, and the low value areas are stably distributed in the central Inner Mongolia and the southwest plateau. The high value areas are distributed in the northwest inland with poor natural conditions,they are concentrated in the areas with high intensity of human activities. Then the results show that PM2.5 pollution in the Yellow River Basin generally presents a distribution pattern in the direction of "northwest to southeast", and its concentration tends to be dispersed in geographical space, the main scope of pollution has been expanded.Finally, population density, industrialization level, foreign investment, scientific research expenditure and other economic social factors have significant influence, but their intensity and direction of action are different.

Key words: PM2.5, haze pollution, spatial-temporal evolution, geographic detector, the Yellow River Basin

摘要:

选取2000—2017年大气PM2.5遥感反演数据集,综合运用标准差椭圆及地理探测器等方法,揭示了黄河流域PM2.5的时空演变特征及其影响因素。结果表明:2000—2017年黄河流域PM2.5年均浓度整体呈现先快速增加后又波动变化的演变趋势,空气污染状况不容乐观;黄河流域PM2.5空间集聚性明显,低值区稳定分布在内蒙古中部和西南部高原地区,高值区一方面分布在自然条件较差的西北内陆,另一方面集中在人类活动强度较高的地带;黄河流域PM2.5污染总体呈现出“西北-东南”方向的分布格局,其浓度在地理空间上呈现分散化的趋势,即污染的主要范围有所扩大;人口密度、工业化水平、外商投资以及科技支出等经济社会因素对PM2.5浓度存在显著影响,但其作用强度及方向存在差异。

关键词: PM2.5, 雾霾污染, 时空演变, 地理探测器, 黄河流域