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.
最后探讨了高应变动测法检测红层嵌岩桩承载力的可靠性，表明高应变动测结果较实际略有偏高。
The reliability for the bearing capacity of pile obtained from the high-strain dynamic method is analyzed, which shows that the results from the said method are higher than the actual value.
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