摘要
对桃小食心虫成虫的空间分布型及抽样技术研究表明,各组样本的各项指标均符合聚集分布的检验标准。应用Taylor幂法则、Iwao’s回归分析法测出桃小食心虫成虫的空间格局基本成分为个体群的聚集分布。根据Blackith对昆虫的聚集因素分析可知,桃小食心虫成虫聚集的原因是由于环境的作用引起的。根据Iwao’s最适理论抽样模型,在一定精确度水平下测得桃小食心虫成虫理论抽样模型为:N=t2D2(1.8m020+0.1205)。
In this paper, systematic studies on the spatial pattern and sampling technique of Carposina niponensis population during adults stage were reported.The results showed：the adults were aggregated in the forest. The characteristics of the spatial pattern of Carposina niponensis adults were estimated to be aggregated type and mutual attraction among individuals by the use of Taylor’s and Iwao’s methods.Based on analyzing factors of aggregation Blackith method was used to obtain theoretical sampling model of the adults.The adults sampling size requiremen N= t2 D2（1.8m02 0＋0.120 5）determined at a precision level.
出处
《山西农业科学》
2010年第6期43-45,共3页
Journal of Shanxi Agricultural Sciences
基金
国家公益性行业(农业)科研专项项目(200803006)
关键词
桃小食心虫
空间分布型
抽样技术
Carposina niponensis
Spatial pattern
Sampling technique
