摘要
应用空间分布型统计参数IwaoM—X模型中α,β及6个聚集指标分析柑橘全爪螨的空间格局,结果表明,柑橘全爪螨的空间格局为聚集型。在此基础上,研究提出了估算柑橘全爪螨在不同虫口密度情况下的理论抽样数。
The spatial distributions of Panonychus citri Mcgregor were analyzed by use of α,βand six cluster indicators of the Iwao M X model. Results indicated that the spatial distributions of Panonychus citri Mcgregor were cluster. The theoretical numbers of sampling in the condition of different densities of Panonychus citri Mcgregor were deduced based on this research.
出处
《植保技术与推广》
2003年第3期10-12,共3页
Plant Protection Technology and Extension
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
sampling technologies
