Table 2 Number of NSIBs in Chinese urban agglomerations (nos.).
Urban agglomeration | Year | |||
|---|---|---|---|---|
2015 | 2018 | 2021 | 2023 | |
Yangtze River Delta | 6 | 31 | 82 | 96 |
Pearl River Delta | 4 | 6 | 12 | 13 |
Jing-Jin-Ji | 2 | 10 | 30 | 38 |
Middle Reaches of the Yangtze River | 2 | 8 | 28 | 35 |
Chengdu-Chongqing | 1 | 3 | 8 | 12 |
Shandong Peninsula | 1 | 7 | 22 | 25 |
Guangdong-Fujian-Zhejiang Coastal | 3 | 12 | 25 | 31 |
Harbin-Changchun | 1 | 3 | 7 | 7 |
Zhongyuan | 1 | 2 | 7 | 7 |
Guanzhong Plains | 0 | 1 | 4 | 6 |
Beibu Gulf | 0 | 3 | 4 | 4 |
Yunnan Central | 0 | 1 | 3 | 3 |
Central Guizhou | 0 | 1 | 2 | 2 |
Northern Slope of the Tianshan Mountains | 0 | 1 | 5 | 5 |
Mid-southern Liaoning | 0 | 1 | 4 | 4 |
Hohhot-Baotou-Ordos-Yulin | 0 | 0 | 2 | 2 |
Lanxi | 0 | 2 | 5 | 5 |
Ningxia Along the Yellow River | 0 | 1 | 1 | 1 |
Jinzhong | 0 | 1 | 1 | 1 |
Urban agglomerations total | 21 | 94 | 252 | 297 |
National total | 22 | 112 | 287 | 343 |
Percentage of number of urban agglomerations(%) | 95.45 | 83.93 | 87.80 | 86.59 |
