Fig. 2
From: City-level building operation and end-use carbon emissions dataset from China for 2015–2020
Three types of Chinese regions classified by heating behavior and temperature and the number of cities in each region in 2015–2020. Region I denotes areas with central heating, where heating activities include both central and distributed heating; Region II denotes areas with only distributed heating; and Region III denotes areas with no heating activities and average monthly temperatures above 10 °C. The annual zoning will change due to changes in central heating in cities, which mainly occurs in the provinces of Jiangsu, Anhui, and Sichuan. White areas in the figure indicate cities and regions not included in the study.
