• 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.

    大小蠹寄生树木伐桩有分层抽样必要及其空间分布格局经拟合项聚集分布

    youdao

  • 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.

    大小蠹寄生树木伐桩有分层抽样必要及其空间分布格局经拟合项聚集分布

    youdao

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