QQ客服 官方微博 反馈留言

	Estimating the Impact of Urbanization on Air Quality in China Using Spatial Regression Models
	Fang C. L.; Liu, H. M.; Li, G. D.; Sun, D. Q.; Miao, Z.
	2015
关键词	air quality index (AQI) air pollution PM2.5 China's urbanization spatial variations spatial regression models geographically weighted regression (GWR) geographically weighted regression environmental kuznets curve varying relationships energy-consumption climate-change united-states land-use pollution cities pm2.5
英文摘要	Urban air pollution is one of the most visible environmental problems to have accompanied China's rapid urbanization. Based on emission inventory data from 2014, gathered from 289 cities, we used Global and Local Moran's I to measure the spatial autorrelation of Air Quality Index (AQI) values at the city level, and employed Ordinary Least Squares (OLS), Spatial Lag Model (SAR), and Geographically Weighted Regression (GWR) to quantitatively estimate the comprehensive impact and spatial variations of China's urbanization process on air quality. The results show that a significant spatial dependence and heterogeneity existed in AQI values. Regression models revealed urbanization has played an important negative role in determining air quality in Chinese cities. The population, urbanization rate, automobile density, and the proportion of secondary industry were all found to have had a significant influence over air quality. Per capita Gross Domestic Product (GDP) and the scale of urban land use, however, failed the significance test at 10% level. The GWR model performed better than global models and the results of GWR modeling show that the relationship between urbanization and air quality was not constant in space. Further, the local parameter estimates suggest significant spatial variation in the impacts of various urbanization factors on air quality.
出处	Sustainability
卷	7
期	11
页	15570-15592
语种	英语
ISSN号	2071-1050
DOI标识	10.3390/su71115570
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/43522]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Fang C. L.,Liu, H. M.,Li, G. D.,et al. Estimating the Impact of Urbanization on Air Quality in China Using Spatial Regression Models. 2015.

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。