Desert introduction: There is a large area of grassland near the lake, which is a pure natural green pasture. Most of the interior of the desert is fixed and semi-fixed sand dunes, accounting for 97% of the entire desert area. It forms the largest fixed and semi-fixed desert in China. Vegetation coverage on fixed dunes is 40-50%, and on semi-fixed dunes is 15-25%. It is the main part of the shrub desert in central Asia and is an excellent winter pasture. Coupled with the buried ancient alluvial plains and ancient river and lake plains, there are huge thicknesses of Quaternary loose sediments and the presence of light confined water. Although the Gansu Desert is known as a desert, it is also full of vitality and can survive in plants. There are more than 300 kinds. Haloxylon ammodendron, tamarisk and Populus euphratica grow on the sand dunes, and there are rich oil resources under the desert.