So far we have covered biodiversity in the hardwoodforest here in the upper peninsula of Michigan from a number of angles.
到目前为止，我们已经从多个角度报道了密歇根上半岛的硬木森林的生物多样性。
2
This paper reports the study of APMP using mixed hardwood, which grows in the secondary forest in Liaoning eastern mountain area.
对辽宁东部山区次生林中的混合硬杂木，利用APMP制浆方法进行了研究。
3
For every indoor acre farmed, 10 to 20 outdoor acres of farmland could return to their natural ecological state, which in most cases is hardwoodforest.