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本文提出了一种新的马尾松毛虫种群密度的估计方法。该方法以单位叶鲜重为统计单位,通过剪枝抽样估计种群密度。对幼虫、蛹样地的回估结果表明,精度基本上满足要求。
In this paper, a new method to estimate population density of Dendrolimus punctatus was proposed. In this method, fresh weight of leaves is used as a statistical unit to estimate population density by pruning sampling. The results of re-evaluation of larvae and pupal plots showed that the accuracy basically met the requirements.