摘要
本文应用空间分布型统计参数 Iwao M*- X 模型中 α,β及 6个聚集指标分析了柑橘全爪螨的空间格局 ,并对抽样技术进行了探讨。结果表明 ,柑橘全爪螨的空间格局为聚集型 ;田间的抽样部位是上、中、下三部的叶片。提出了估算柑橘全爪螨在不同虫口密度下的理论抽样数。
The spatial distribution pattern was analysed and the sampling technique was studied for Panonychus citri McGregor by Iwao's model. The results showed that the spatial distribution pattern of Panonychus citri belonged to the aggregated, and the sampling was on the leave of the up, mid and down positions in fields. However, the number of theoretical sampling was provided for evaluation of Panonychus citri under different density.
出处
《华东昆虫学报》
2003年第1期53-55,共3页
Entomological Journal of East China
关键词
柑橘全爪螨
空间格局
抽样技术
虫口密度
Panonychus citri McGregor, spatial distribution pattern, sampling technique
