The third is to mainly select local species for cities re-forestation.

三是在城市绿化管理上的采用以乡土植物为主、外来种为辅的原则。

youdao

The third is to mainly select local species for cities re-forestation.

三是在城市绿化管理上的采用以乡土植物为主、外来种为辅的原则。

youdao