於森林下層選擇劣勢或形質不良之林木作為疏伐木，再依疏伐率往上層選伐中勢

於森林下層選擇劣勢或形質不良之林木作為疏伐木，再依疏伐率往上層選伐中勢木

結果 (英文) 1:

In the lower layer of the forest, select inferior or poor-quality trees as thinning trees, and then select middle-potential trees in the upper layers according to the thinning rate.

結果 (英文) 2:

Select inferior or poorly shaped trees in the lower layer of the forest as thinning trees, and then select medium potential trees in the upper layer according to the thinning rate

結果 (英文) 3:

In the lower forest, select inferior or poorly shaped trees as thinning trees, and then select and cut medium-sized trees in the upper layer according to thinning rate.