There is a mountain in the southwest with four seasons and ten miles in different days.

In the southwest of China, there is a mountain with four seasons and ten miles in different days. The main reason is that the mountain is high and the valley is deep, and the terrain is undulating.

Southwest China is located in the subtropical zone, but the terrain is mainly mountainous, so the subtropical mountainous climate with rainy, cloudy, high humidity and little sunshine is remarkable. The Sichuan-Guizhou Plateau is the place with the most clouds and the least sunshine in China, with the annual sunshine 1 000 ~ 1 600 hours, which is the lowest in China. ?

The average annual precipitation is 800 ~1000 mm, and the highest precipitation can reach above1800 mm. The effective accumulated temperature in Simao, Yunnan is 5500℃ ~ 6500℃, near Kunming is 4 500℃, and in southwest Sichuan is 4 000℃ ~ 4 500℃. The annual average temperature in Kunming 14. ?

Southwest China is dominated by basins and hills, with the Loess Plateau in the north, Yunnan-Guizhou Plateau in the south, Qinghai-Tibet Plateau in the west, Wushan and Daba Mountains in the east, surrounded by mountains, and located near the north-south boundary of China climate, which makes this area in the intersection of cold air and warm and humid air for a long time. It is sultry and humid in summer, cold and rainy in winter, cloudy and foggy in spring and autumn, and it is difficult to have a few sunny days all year round, which is the place with the shortest sunshine time in China. ?

Southwest is one of the seven geographical divisions of China, bordering Central China and South China in the east and northwest China in the north, including Chongqing, Sichuan, Guizhou, Yunnan and Xizang Autonomous Region. Among them, Sichuan Basin is the most densely populated, convenient and economically developed area in this region.