在采伐作业设计和伐后验收的蓄积计算上应采用相同的计算方法或编制区域性根径一元材积表，以减少误差。
It should use the same volume calculation method or make one way volume table for felling design and acceptance after felling to reduce errors.
单位根检验结果是否可信，直接影响后续的协整建模过程，从而影响变量之间长期的结构均衡关系，以及短期的误差修正机制。
The results of an unit root testing can directly influence the process of modeling, the long-run equilibrium relationship and the short-run error correction mechanism.
通过对时间序列建立向量误差修正模型，运用单位根检验、协整检验、格兰杰因果关系检验、脉冲响应函数等方法精确地度量系统中变量之间相互影响的动态过程。
The article USES VECM, ADF Test, Johansen Test, Granger Causal Relation Test, Impulse Response Function to accurately measure the process that the variables influence each other in the system.
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