中国人口·资源与环境2017，Vol.27Issue(1)：91-100,10.DOI:10.3969/j.issn.1002-2104.2017.01.011
长江经济带PM2.5时空特征及影响因素研究
Spatial-temporal characteristics of PM2.5and its influencing factors in the Yangtze River Economic Belt
摘要
Abstract
Airborne fine particulate matter (PM2.5) has brought serious harm to atmospheric environment and human health thus incurring great concern of scholars.This article targets one of the most competitive and strategic areas of China,the Yangtze River Economic Belt,to conduct the research.Based on the air quality monitoring data on the city level,the paper discussed the spatialtemporal characteristics of the PM2.5 in the Yangtze River Economic Belt in 2015 by the geographical spatial analysis and GISvisualization method.Furthermore,a spatial regression was conducted to show the internal correlation between PM2.5 and regional social and economic development.The results showed that,in the aspect of spatial feature,the midstream and downstream area suffered more serious PM2.5 pollution than upstream area,while the north shore suffers more than the south shore.Precisely,most of areas of Hubei,Anhui and Jiangsu provinces were the hot spots of PM2.5 pollution,presenting a diagonal symmetry to Yunnan and its surrounding areas which have pretty clean air.PM2.5 concentration displayed a significantly positive spatial autocorrelation which decreased as the distance increased with a threshold scale of about 900km.Within this distance the spatial cluster was relatively significant.In the aspect of temporal feature,winter had the relatively highest PM2.5 concentration,followed by spring and autumn,while air quality in summer was the best.PM2.5 concentration distribution tends to be diverse in the beginning of the year but converge to some extent later.Besides,there's a pairwise correlation between PM2.5,SO2,NO2 and O3,which implied a transfer from primary pollution to secondary pollution leading to a vicious circle.Spatial regression indicated that PM2.5 pollution rised firstly but fell later as GDP per capita increased,which to some degree supports the hypothesis of'Environmental Kuznets Curve'.Besides,the increase of population density and public transportation intensity could also worsen the PM2.5 pollution.Finally,the article proposes a series of practical policies from the aspects of regional cooperating depollution,synergetic reduction of various air pollutants and the improvement of economic growth pattern.关键词
长江经济带/PM2.5/时空特征/影响因素Key words
Yangtze Economic Belt/PM2.5/spatial-temporal characteristics/influential factors分类
资源环境引用本文复制引用
杨冕,王银..长江经济带PM2.5时空特征及影响因素研究[J].中国人口·资源与环境,2017,27(1):91-100,10.基金项目
国家自然科学基金青年项目“要素市场扭曲对中国高耗能行业能源生产率的影响研究”(批准号:71303177) （批准号:71303177）
教育部人文社会科学青年基金项目“基于行业异质性的要素市场扭曲对中国能源生产率的影响”(批准号:13YJC790179) （批准号:13YJC790179）
中国博士后科学基金一般项目“基于要素配置效率视角的我国经济发展方式转型研究”(批准号:2014M550848) （批准号:2014M550848）
教育部人文社科重点研究基地重大项目“中国人口增长与经济可持续发展问题研究”(批准号:14JJD790042). （批准号:14JJD790042）
