摘要
蠕须盾蚧空间分布型测定结果表明：频次分布检验为Ｎｅｙｍａｎ分布；聚集度指标测定为聚集分布；根据ｍ＾＊－ｍ的线性回归方程ｍ＾＊＝０．０７２＋１．３７５ｍ，表明属于聚集分布。根据聚集均数λ测定结果，分析了聚集原因。在分布型研究基础上，探讨了资料代换模型，最适抽样数的种群序贯抽样模型。
The spatial distribution pattern of Kuwanaspis vermisformis was determined. The results indicate: 1. It displays as the Neyman distribution by determination of frequency distribution; 2. It fits to the pattern of aggregation by test of several indices of aggregation; 3. The linear regression equation of m~* -m is m~*-0. 072＋1. 375m, so it fits to aggregation distribution. The reason for the aggregation was analyzed according to estimation by mean aggregation (A). The model data conversion, the population sequential sampling and the theoretical sampling number model were also built up in the paper.
出处
《竹子研究汇刊》
北大核心
1998年第1期42-45,共4页
Journal of Bamboo Research
基金
福建省自然科学基金
关键词
蠕须盾蚧
空间分布型
抽样技术
Kuwanaspis vermiformis
Spatial distribution pattern
Sampling technique
