Introduction to the alpine meadow area: It can be divided into four vertical zones from the bottom of the cliff upward: that is, the shrub and agricultural reclamation zone below 1200 meters above sea level; the coniferous and broad-leaved mixed forest zone between 1200 and 1800 meters above sea level, with the main tree species There are pine, spruce, aspen, white birch, red birch, etc.; at an altitude of 1800-2200 meters, there is a coniferous forest belt, mainly North China larch; above 2200 meters above sea level, there are mountain shrub meadows.