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对安徽沿江棉田棉铃虫卵的空间分布动态规律进行了调查研究 ,结果表明棉铃虫卵在棉田的聚集程度随发生代次而逐渐增强 ,发现不同代次虫口密度相同时理论抽样数明显不同 ,提出了沿江各代估值调查中的理论抽样数 ,并对几种空间格局模型拟合棉铃虫的空间分布情况作了比较。
The spatial distribution of cotton bollworm eggs in the cotton fields in Anhui Province was investigated. The results showed that the accumulation of cotton bollworm eggs in the cotton fields gradually increased with the generation of cotton bollworm. The number of theoretical samples was significantly different at different times of insect population density. The number of theoretical samples in the valuation survey of each generation along the Yangtze River was compared, and the spatial distribution of several types of cotton bollworm was compared.