栓皮栎是我国重要的造林树种，并且极具经济价值。

Quercus variabilis is an important tree species for afforestation, which have great economic value.

youdao

栓皮栎是我国重要的造林树种，并且极具经济价值。

Quercus variabilis is an important tree species for afforestation, which have great economic value.

youdao