Three vegetation zones may be distinguished by pollen percentages;they are the subalpine shrub, subalpine shrub and subalpine meadow, and alpine meadow and steppe vegetation zones.

• 依据孢粉的百分含量，可以划分为亚高山灌丛植被区，亚高山灌丛、亚高山草甸植被区和高寒草甸、草原植被区3个植被带。