A group of argali sheep runs in the Yanchiwan National Nature Reserve in Subei county, Jiuquan, Gansu province. [Photo provided to jiuquan.gogansu.com]

Recently, in the Yanchiwan National Nature Reserve in Subei county, Jiuquan, Gansu province, groups of "plateau elves" argali sheep have been seen running freely at the golden grass beaches surrounded by white snow, adding vitality to the land.

In recent years, thanks to the county's restoration projects of mountains, rivers, forests, grass and sand systems, the number of wild animals has grown.