Pinus koraiensis, Larix gmelini and Larix olgensis are the species of the most important timber in northeast of China.
本文研究了东北红松、落叶松和黄花落叶松的木材密度和顺纹抗压强度的变异。
2
The peat moss will be changed into valuable things and it promotes automatically the renewal of Larix olgensis forest for peat moss is cleared away.
以及开发泥炭藓的多种应用，既可收到变废为宝，又因清除了藓类等地被物而促进长白落叶松林的更新。
3
On the basis of experiments of the cuttage propagation and cuttings transplanting of Larix olgensis, a lot of factors which affect the cuttings have been systematically studied.