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- Title
南昌市中心城区绿地景观对PM<sub>2.5</sub> 的影响.
- Authors
李 琪; 陈文波; 郑 蕉; 谢 涛; 卢陶捷
- Abstract
With rapid urbanization and industrialization, more attention has been paid to atmosphere quality in China. PM2.5, an important atmospheric pollutant, has attracted widespread public attention. Urban greenspace as a semi-natural surface landscape can affect the concentration and distribution of PM2.5. Current studies mainly focus on micro-scale, with few on landscape scale. In this study, land use regression (LUR) model was used to densify monitoring points. Based on ordinary Kriging interpolation method, the spatial distribution of PM2.5 concentration was simulated with high precision. We quantitatively analyzed the impacts of urban greenspace landscape characteristics and quality on PM2.5 concentration by coupling urban greenspace interpreted by remote sensing. The results showed that PM2.5 concentration decreased from central area to periphery. The impacts of greenspace on PM2.5 concentration varied with greenspace types. The shape of greenspace had no effect on PM2.5 concentration, while the area and quality of greenspace were significantly negatively correlated with PM2.5 concentration. In general, the greenspace had an obvious PM2.5 reduction effect in the distance of less than 100 m. Within the reduction distance, the closer to the greenspace, the lower the PM2.5 concentration was. The reduction distance of the affiliated and park greenspace was larger than other greenspace types.
- Subjects
CHINA; LAND use; REMOTE sensing; INDUSTRIALIZATION; POLLUTANTS; KRIGING; URBANIZATION; GEOLOGICAL statistics
- Publication
Yingyong Shengtai Xuebao, 2019, Vol 30, Issue 11, p3855
- ISSN
1001-9332
- Publication type
Article
- DOI
10.13287/j.1001-9332.201911.018