Why is the temperature difference between southern Xinjiang and northern Xinjiang large?

Because the Tianshan Mountains can stop cold air from invading south, it has become a climate dividing line, with northern Xinjiang belonging to the middle temperate zone and southern Xinjiang belonging to the warm temperate zone.

Introduction:

Xinjiang Uygur Autonomous Region, referred to as Xinjiang for short, is located in the northwest border of China, with Urumqi as the capital. It is one of the five minority autonomous regions in China and the largest provincial administrative region in China, covering an area of 6,543,800 square kilometers, accounting for one sixth of the total land area of China. ?

Location:

Xinjiang is located between 73 40 ′ e ~ 9618 ′ e and 34 25 ′ n ~ 4810 ′ n, which is the largest provincial administrative region in China. The total area of Xinjiang accounts for one sixth of the land area of China (654.38+0.66 million square kilometers), and the length of the border line accounts for one quarter (more than 5,000 kilometers), with an area of 40,000 square kilometers, which is more than eight times the combined area of Jiangsu Province and Zhejiang Province. Among them, Ruoqiang County of Bayinguoleng Mongolian Autonomous Prefecture is the largest county in China.

Terrain:

Mountains and basins are arranged alternately, and the basins are surrounded by mountains, which is called "three mountains and two basins". There are Altai Mountains in the north and Kunlun Mountains in the south. Tianshan Mountain is located in the middle of Xinjiang, which divides Xinjiang into two parts: Tarim Basin in the south and Junggar Basin in the north. It is customary to call the south of Tianshan Mountain South Xinjiang, the north of Tianshan Mountain North Xinjiang, and Hami and Turpan Basin East Xinjiang. Aiding Lake in Turpan, the lowest point in Xinjiang, is155m above sea level (also the lowest point on land in China). The highest point, Jogory Peak, is located on the Kashmir border, with an altitude of 86 1 1 m. The Gurbantunggut Desert in Xinjiang (46 degrees north latitude 16.8 minutes, 86 degrees 40.2 minutes east longitude) is the farthest place from the ocean on land, with a distance of 2648 kilometers (linear distance) from the nearest coastline.