Data expansion:
Lanzhou, referred to as "Lan" and "Gao", was called Jincheng in ancient times. It is a prefecture-level city, provincial capital and I-type big city under the jurisdiction of Gansu Province. It is an important industrial base and comprehensive transportation hub in the northwest of China, one of the important central cities in the western region approved by the State Council and an important node city in the Silk Road Economic Belt.
By 2022, there will be five districts and three counties in the city, with a total area of1.365,438+0.000 square kilometers and a permanent population of 44 1.53 million. Lanzhou is located in the geometric center of the land map of northwest China and Chinese mainland, with a temperate continental climate from102 36 ′ to104 35 ′ east longitude and 35 34 ′ to 37 00 ′ north latitude.
Lanzhou has a history of more than 2000 years since the Qin Dynasty. Since ancient times, it has been a transportation hub and military fortress of "connecting all directions and taking Wan Li first". Named Jincheng, it means "Jincheng Tang Chi" and is known as the "Pearl of the Yellow River". Due to the Silk Road, Lanzhou has become an important traffic artery and commercial port.
Later, it became one of the earliest cities in China to accept modern industrial civilization. After the founding of New China, it was identified as one of the national key industrial bases and became an important petrochemical, biopharmaceutical and equipment manufacturing base in China.
In 20 12, the State Council approved Lanzhou new district, the first national new district in northwest China, and made it clear that the construction of Lanzhou new district is an important measure to further implement the strategy of developing the western region, and Lanzhou will be developed into a modern metropolis in northwest China in 2020.
The Lanzhou-Xining Urban Agglomeration Development Plan of 20 17 clearly cultivated and developed Lanzhou-Xining Urban Agglomeration into an important urban agglomeration to support the pattern of homeland security and ecological security and maintain the prosperity and stability of the northwest region.
In 2022, the GDP of Lanzhou was 334.35 billion yuan, up by 0.8% over the previous year. Per capita GDP is 75,992 yuan. Lanzhou is rich in inbound water resources, which flows through the Yellow River and its tributary Huangshui.
The water inflow of Datong River is 33.7 billion cubic meters, with stable water volume, no freezing in all seasons and small sediment concentration. The Lanzhou section of the Yellow River has a total length of 152km, of which 45km flows through the urban area.