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weibull分布的概率密度函数为f（x）=c/b（x-a）~（c-1）exp （-（x-a）~c/b）,x≥a。本文首次用于拟合马尾松毛虫种群的空间分布,9批抽样数据拟合结果表明马尾松毛虫越冬代大幼虫、越冬代蛹的空间分布符合Weibull分布,从而丰富了马尾松种群空间格局的分布理论。
The probability density function of weibull distribution is f (x) = c / b (x-a) ~ (c-1) exp (- (x-a) ~c / b), x≥a. This paper was first used to fit the spatial distribution of population of Dendrolimus punctatus. The fitting results of 9 batches of sampled data showed that the distribution of Pinus massoniana overwintering large larvae and overwintering pupal distribution conformed to Weibull distribution, which enriched the spatial distribution of Pinus massoniana population theory.