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采用聚集度指标法和回归分析法 ,对两色绿刺蛾在毛竹林间的空间格局进行测定 ,并采用刀切法给出了聚集度指标的估计区间 ,三次设计最优拟合提高了回归模型参数的精度。结果表明 ,两色绿刺蛾幼虫在林间为聚集分布 ,分布的基本成分是个体群 ,种群在林间的分布判断为聚集度零频率制约型。
Spatial pattern of green moths in Moso bamboo forest was determined by using degree of aggregation index and regression analysis method. Knife cut method was used to estimate the range of aggregation index. The best fit of the three times design increased the regression Accuracy of model parameters. The results showed that the larvae of Acanthotis glauca in the forest were aggregated and distributed, and the distribution of the larvae was individual. The distribution of the population in the forest was judged as zero frequency of aggregation.