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应用频次分析方法研究了松材线虫萎蔫病病死木和林分中原有松树的空间分布型。松材线虫萎蔫病病死木在马尾松林内的分布为聚集分布 ,主要为波松 -二项分布。林分内原有松树的分布为随机分布 ,说明松材线虫萎蔫病病死木的聚集分布不是由林分内原有松树的分布所引起
The frequency distribution of pine trees in dead wood and stand of the wilt disease of Bursaphelenchus xylophilus was studied by using frequency analysis method. Pine wood nematode wilt disease dead wood distribution in the Pinus massoniana forest for the distribution of distribution, mainly for the Poisson - binomial distribution. The distribution of the original pine trees in the stands was randomly distributed, indicating that the distribution of dead wood of the wilt disease of the pine wood nematode was not caused by the distribution of the original pine trees in the forest stand