In history, the south bank of the Yellow River is also a fertile soil, rich in water plants, which was once taken from the Huns by Meng Tian of Qin Shihuang and can be planted. However, after the arrival of the Little Ice Age, the climate in China, East Asia and even the whole world will get colder and the precipitation will decrease. This is not a very humid area, so there will be a desert. That's the truth. During the Northern and Southern Dynasties, the first desert appeared here, which was recorded in Wei Shu. Of course, it's not big. However, with the excessive reclamation and deforestation, the evaporation increased greatly and the precipitation decreased, and it gradually became a vast desert.
The historical materials of China recorded the development process of the desert on the south bank of the Yellow River, especially the main Kubuqi desert. From the Southern and Northern Dynasties to the Ming and Qing Dynasties, it gradually changed from a small desert to a big desert. It can be said that people played a great role. However, the Hetao area is rich in water resources-the Yellow River. In fact, both sides of the Hetao River are the Yellow River, but the northern part has gradually become an oxbow lake, but there are still water sources from other places, not depending on the weather. So the Hetao did not become a desert.