The Achnatherum splendens community is an important vegetation type of warm steppes along the Qinghai-Tibet railway.It plays a very important role in environmental protection in this area.

• 摘要芨芨草群落是青藏铁路沿线一类重要的温性草原植被类型，对青藏铁路两侧及其四周的水土保持起着非常重要的作用。