在针叶树的种子园，新的伐桩应予除掉。
红脂大小蠹寄生的树木和新伐桩有分层抽样的必要及其空间分布格局经拟合为负二项聚集分布。
It is necessity that stratified sampling is used to investigate to the trees and the new stumps, and the spatial distributing pattern of the red turpentine beetles was Negative Binomial Distribution.
萌芽点数按伐桩高度和伐桩直径分布均呈随机性，表明萌芽点数与伐桩高度和伐桩直径无关，仅与其生物学特性有关。
The number of sprout spot was related with biological features but not related with height and diameter of stumps as it changed with randomicity.
对固定样地调查，采用伐桩的径、高度、萌芽的数量、萌芽的生长情况等指标，分析东北东部林区主要阔叶树种的伐桩萌芽更新规律。
The law of stump sprouting of broad-leaved tree species was studied in eastern forest area in Northeast China by the investigation of fixed sampling.
未来的林木开采权获得人必须在他们伐倒的每棵树(和剩余的残桩)上打上计算机条码。
Future forestry concessionaires will be obliged to attach a bar code to each tree they fell (and the stumps they come from).
未来的林木开采权获得人必须在他们伐倒的每棵树(和剩余的残桩)上打上计算机条码。
Future forestry concessionaires will be obliged to attach a bar code to each tree they fell (and the stumps they come from).
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