Why is Rongcheng called the second largest city?

Rongcheng is called the second largest city for the following reasons:

* * * Strong economic strength. Rongcheng's total GDP and per capita GDP are very high in the whole province, and the per capita income level is also relatively high.

* A large population. Rongcheng has a large population.

* Good air quality and livable climate. Rongcheng has good air quality, moderate temperature and four distinct seasons, which is suitable for living.

To sum up, Rongcheng is called the second largest city.