From: Do green spaces affect the spatiotemporal changes of PM2.5 in Nanjing?
Radius (km) | Spring | Summer | Autumn | Winter | Spring | Summer | Autumn | Winter |
Green cover | Edge length | |||||||
0.5 | 0.058 | 0.656 | 0.131 | 0.921 | 0.047 | 0.486 | 0.164 | 0.921 |
1 | 0.005 | 0.772 | 0.092 | 0.882 | 0.003 | 0.441 | 0.120 | 0.870 |
2 | 0.005 | 0.274 | 0.014 | 0.741 | 0.006 | 0.437 | 0.115 | 0.933 |
3 | 0.039 | 0.830 | 0.049 | 0.890 | 0.053 | 0.702 | 0.133 | 0.807 |
4 | 0.551 | 0.743 | 0.218 | 0.969 | 0.363 | 0.776 | 0.264 | 0.654 |
5 | 0.830 | 0.567 | 0.847 | 0.790 | 0.405 | 0.829 | 0.322 | 0.602 |
6 | 0.842 | 0.589 | 0.928 | 0.674 | 0.577 | 0.987 | 0.331 | 0.650 |
Grassland cover | Forest cover | |||||||
0.5 | 0.107 | 0.764 | 0.589 | 0.429 | 0.936 | 0.914 | 0.506 | 0.171 |
1 | 0.041 | 0.972 | 0.628 | 0.433 | 0.028 | 0.653 | 0.583 | 0.560 |
2 | 0.058 | 0.956 | 0.336 | 0.705 | 0.061 | 0.559 | 0.066 | 0.443 |
3 | 0.378 | 0.703 | 0.232 | 0.898 | 0.590 | 0.776 | 0.133 | 0.659 |
4 | 0.555 | 0.835 | 0.243 | 0.941 | 0.958 | 0.625 | 0.286 | 0.940 |
5 | 0.511 | 0.934 | 0.206 | 0.902 | 0.906 | 0.640 | 0.326 | 0.996 |
6 | 0.585 | 0.906 | 0.151 | 0.866 | 0.814 | 0.510 | 0.381 | 0.984 |
Green cover (PM2.5 ≥ 75 ug·m−3) | Green cover (PM2.5 < 75 ug·m−3) | |||||||
0.5 | 0.856 | 0.531 | 0.379 | 0.968 | 0.003 | 0.275 | 0.227 | 0.336 |
1 | 0.445 | 0.391 | 0.260 | 0.992 | 0.002 | 0.264 | 0.493 | 0.385 |
2 | 0.315 | 0.292 | 0.176 | 0.880 | 0.001 | 0.174 | 0.470 | 0.277 |
3 | 0.519 | 0.252 | 0.102 | 0.988 | 0.011 | 0.438 | 0.672 | 0.253 |
4 | 0.704 | 0.377 | 0.193 | 0.784 | 0.213 | 0.457 | 0.390 | 0.109 |
5 | 0.799 | 0.379 | 0.163 | 0.567 | 0.430 | 0.554 | 0.905 | 0.176 |
6 | 0.834 | 0.394 | 0.202 | 0.513 | 0.793 | 0.342 | 0.508 | 0.319 |