摘要
利用6种空间分布型聚集度指标、Taylor幂法则及lwao回归法对绿盲蝽越冬卵的空间分布型进行测定结果表明,绿盲蝽越冬卵在枣树上呈聚集分布,且符合负二项分布,其聚集原因是由该虫习性与环境因素共同引起。并利用分布型参数确定了绿盲蝽越冬卵的理论抽样数。
By using the index of 6 kinds of aggregation indices on spacial distribution pattern, Taylor＇ s power principle, and lwao＇s regression analysis method, the spacial distribution pattern of Lygus lucortum Meyer-Dur＇ s over winter eggs was studied. The results show that these eggs are aggregation distribution on the jujube trees, which accords with minus binomial, distribution. This distribution pattern results from the worm＇s habit and the circumstances. The theoretical sampiing number of Lygus lucortum Meyer-Dur＇s over winter eggs is ascertained by the distribution indices.
出处
《中国生态农业学报》
CAS
CSCD
2006年第3期157-159,共3页
Chinese Journal of Eco-Agriculture
基金
中国科学院"十五"农业项目(NK十五-A-3)
河北省科技厅"十五"农业重点科技攻关项目(01220923D)部分研究内容
关键词
绿盲蝽
越冬卵
空间分布型
理论抽样
枣树
Lygus lucortum Meyer-Dur,Over winter eggs,Spacial distribution pattern,Theoretieal sample,Jujube
