Fig 1.
Classification and distribution of air quality monitoring sites in Beijing.
Table 1.
List of the selected landscape metrics.
Table 2.
Classification and description of independent variables.
Fig 2.
Seasonal pattern of four categories of all sites.
Table 3.
Landscape metrics that had relationship with PM2.5 concentration (|r|>0.6).
Table 4.
Analysis of coefficient of regression models.
Table 5.
Classification of independent variables included in regression models.