摘要
桑园内南方刀螂卵块属聚集分布,在桑树上的分布高度属对数正态分布。用序贯抽样技术探讨了最适抽样数和采收指标。
The egg mass of Tenodera aridifolia has an aggregate distribution in the mulberry garden and a normal logarithmic distribution on the mulberry. The optimum sampling number and the harvesting index were revealed by sequential sampling technique.
出处
《昆虫天敌》
CSCD
1991年第4期167-170,共4页
Natural Enemies of Insects
关键词
南方刀螂
卵块
空间分布
egg mass Tenodera aridifolia stoll spatial distribution
