榆树疏林生态系统是浑善达克沙地的重要组分之一。

Ulmus pumila open forest ecosystem plays an important role in Otindag Sandy Land.

youdao

榆树疏林生态系统是浑善达克沙地的重要组分之一。

Ulmus pumila open forest ecosystem plays an important role in Otindag Sandy Land.

youdao