What is the fourth pole of China's economy?

A: The fourth pole refers to the region whose economic strength ranks behind the top three economic circles.

Level 1: Pearl River Delta (Hong Kong is the economic core city, and Guangzhou, Shenzhen and Macao are the sub-central cities).

Level 2: Yangtze River Delta (Shanghai is the economic core city, and Nanjing, Suzhou and Hangzhou are sub-central cities).

Level 3: Beijing-Tianjin-Hebei (Beijing is the economic core city and Tianjin is the sub-central city)

Level 4: Sichuan Basin (Chengdu is the economic core city and Chongqing is the sub-central city).

Schematic diagram of backbone network of national comprehensive three-dimensional transportation network

China's Four Economic Circles

Pearl River Delta Economic Circle, *** 1 1 city.

Beijing-Tianjin-Hebei economic circle

Administrative map of Sichuan province

Sichuan Basin

Sichuan Basin

Yangtze river delta economic circle

Level 4: Sichuan Basin (Chengdu is the economic core city and Chongqing is the sub-central city).