摘要
应用Taylor的幂法则、Iwao m*-m回归分析法及6个聚集指标,对韭菜迟眼蕈蚊(Bradysia odor-iphaga Yang et Zhang)幼虫的空间分布型和抽样技术进行研究,以期指导韭菜迟眼蕈蚊田间防治。结果表明,韭菜迟眼蕈蚊幼虫呈聚集分布,分布的基本成分是个体群,其聚集性随密度的增加而增大;可运用Iwao m*-m回归分析法中的两个参数α和β值确定在不同精度下的理论抽样数及序贯抽样数。
The spatial distribution pattern and sampling technique of Bradysia odoriphaga Yang et Zhang larva were analyzed using Taylor’s power law,Iwao’s m＊-m regression equation,and six aggregation indexes.The results showed that the spatial distribution pattern of Bradysia odoriphaga larva was aggregated,and the basic component of the distribution was individual colony whose aggregation intensity increased with density.Using the parameters α and β in Iwao’s m＊-m regression equation,the optimal and sequential sampling numbers were determined.
出处
《湖北农业科学》
北大核心
2012年第6期1128-1130,1141,共4页
Hubei Agricultural Sciences
基金
山东滨州市科技发展计划项目(201026)
滨州学院科研基金项目(BZXYL1003)
关键词
韭菜迟眼蕈蚊
幼虫
空间分布
抽样技术
Bradysia odoriphaga Yang et Zhang
larva
spatial distribution
sampling technique
