Xi 'an, formerly known as Chang 'an and Haojing, is a prefecture-level city under the jurisdiction of Shaanxi Province. It is the capital of Shaanxi Province, a sub-provincial city, a megacity, a national central city, xi 'an metropolitan area and the core city of Guanzhong Plain urban agglomeration. It is an important central city in western China and an important national scientific research, education and industrial base approved by the State Council.

By the end of 2022, there were 1 1 districts in the city, with a total area of1kloc-0/08 square kilometers and a permanent population of 12995900. Xi 'an is located in the northwest of China, in the middle of Guanzhong Plain, between east longitude107 40 ′ ~109 49 ′, north latitude 33 42 ′ ~ 34 45 ′, bordering Weihe River in the north and Qinling Mountain in the south. Since ancient times, Xi 'an has been known as "Eight Rivers Around Chang 'an".

City related information

The geological structure of Xi 'an is divided into two units: Qinling geosyncline fold belt and North China platform. The great fault at the northern foot of Qinling Mountains occurred during the Yanshan Movement 654.38+300 million years ago. Since the Neogene about 3 million years ago, the neotectonic movement in the Qinling geosyncline fold belt south of the great fault has been extremely active, and the mountains have fallen sharply from north to south, creating the Qinling Mountains.

At the same time, the Weihe fault depression, which belongs to the North China platform to the north of the great fault, continued to subside, and the Weihe plain was formed under the joint action of aeolian loess cover and Weihe alluvial. The altitude difference in Xi 'an ranks first among the cities in China. The Qinling Mountains, with its steep and beautiful peaks, and the wide and flat Weihe Plain have clear boundaries, which constitute the main landforms of Xi 'an.

The main peak of Qinling Mountain is 2000-2800 meters above sea level, of which the main peak of Taibai Mountain in the southwest is 3867 meters above sea level, which is the highest peak in the central part of the mainland. Weihe plain is 400-700 meters above sea level, of which the lowest point of Weihe river bed in the northeast is 345 meters above sea level. The urban area of Xi is built on the second terrace of Weihe Plain.

Please refer to Baidu Encyclopedia -Xi 'an for the above contents.