Figure 4

Spatial pattern of new urbanization levels in various functional zones of revolutionary old areas from 2010 to 2020.The map vector data is sourced from the Chinese Standard Map Service System (http://bzdt.ch.mnr.gov.cn/). The drawing review number is GS (2024) 0650. Maps were drawn by authors, using ArcGIS 10.8 (Environmental Systems Research Institute, USA. https://www.esri.com/).