灾害学2017，Vol.32Issue(2)：117-123,7.DOI:10.3969/j.issn.1000-811X.2017.02.020
中国空气污染指数时空分布特征及其变化趋势(2001-2015)
Spatiotemporal Pattern of the Air Pollution Index and its Trend in China from 2001 to 2015
摘要
Abstract
In recent years, China's urbanization has improved continuously.Aerosol emission from human activities has increased rapidly.Especially, frequent haze events have drawn increasing public attention to air quality.Studying on spatial and temporal distribution of Air Pollution Index (API) and its trend can address air quality issues of public concern.The research has found that anthropogenic emissions of pollutants as condensation nuclei affect precipitation.Therefore, in order to study the anthropogenic emissions of aerosol effects on precipitation, we must study the main pollutants of anthropogenic emissions of aerosol's spatial and temporal patterns of regional differences and trends first.In this study, API daily data in 119 major cities of China are used to analyze the spring, summer, autumn and winter's API temporal distribution patterns and trends.The results showed that (1) China's API daily average value for years descend as winter> spring> autumn> summer;(2) In northern China, API daily average state is higher than the southern region, the eastern coastal region is higher than the western inland regions;(3) The API daily average value upward trend with more obvious areas are mainly concentrated in the Beijing-Tianjin-Tangshan dominated northern region.API daily average value upward trend and downward trend staggered appears in other areas.关键词
空气污染指数/时空分布/区域分异/污染排放/城市化Key words
Air Pollution Index (API)/spatial and temporal distribution/regional differentiation/pollution emissions/urbanization分类
天文与地球科学引用本文复制引用
孔锋,吕丽莉,方建,徐宏辉..中国空气污染指数时空分布特征及其变化趋势(2001-2015)[J].灾害学,2017,32(2):117-123,7.基金项目
中国博士后科学基金面上资助项目"基于时空变化分析的气候变化对洪水灾害影响研究"(2015M582263) （2015M582263）
中央高校基本科研业务费专项资金课题"气候变化对长江流域洪水灾害影响研究"(2042016kf0067) （2042016kf0067）
国家自然科学基金重大研究计划(91544226) （91544226）
