Higher density stands reach quatitive maturity earlier than lower density stands, the annual stem volume produced by unit land area of higher density stand is larger than that of lower density stands.
随着密度的增加，林分达到数量成熟期的年限变短，若以数量成熟期为采伐年限，则单位面积年均材积产量仍以高密度林分为最大。
参考来源 - 辽西地区杨树人工林生长规律和树冠结构的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
5-years, and DBH, height, stem volume, wood density and bark thickness at 10.
5年生胸径、树高、材积、木材密度和树皮厚度的遗传变异进行了研究，结果表明：10。
Higher density stands reach quatitive maturity earlier than lower density stands, the annual stem volume produced by unit land area of higher density stand is larger than that of lower density stands.
随着密度的增加，林分达到数量成熟期的年限变短，若以数量成熟期为采伐年限，则单位面积年均材积产量仍以高密度林分为最大。
Method for estimating biomass and net production of forest vegetation from stem volume of stand was proposed in this paper, and biological production all over China was estimated by using this methed.
利用森林蓄积量推算森林生物量和净生产量的方法，系统研究了我国森林植被的生物生产力。
应用推荐