Figure 7
The spatial distribution of 30 major cities. The map was created using the Free and Open Source QGIS, Version 3.32.3 (https://www.qgis.org/en/site/).
Figure 7 | Scientific Reports
The spatial distribution of 30 major cities. The map was created using the Free and Open Source QGIS, Version 3.32.3 (https://www.qgis.org/en/site/).
