摘要
锈色粒肩天牛 [Apriona swainsoni Hope]是中国森林植物检疫中的一种重要害虫 ,是国槐 (Sophorajaponica L.)的毁灭性害虫。通过对 3 1块国槐标准地的抽样调查和 6项聚集度指标的测定 ,应用 Taylor幂法则和 Iwao聚集度回归分析法 ,对该幼虫空间分布型进行了研究。结果表明 ,锈色粒肩天牛属聚集分布。利用其空间格局参数 X* 、K等值 ,分析了该幼虫聚集的原因。
Apriona swainsoni Hope is one of the important pests in China′s forest quarantine.It is also a serious pest on Sophora japonica L.The spatial distribution of the larvae of Apriona swainsoni Hope was studied through sampling in 31 plots of Sophora japonica calculating 6 indices of aggregation.Taylor′s power law and Iwao′s regression analysis were also used.The results showed that Apriona swainsoni Hope was in aggregative distribution.Using the parameters X * and K of spatial patterns, the author also analyzed the reasons for the larvae′s aggregation. Based on the ratio of the trees with the larva,the author also established the model and the theoretical sampling formula for estimating the population density.
出处
《安徽农业大学学报》
CAS
CSCD
北大核心
2002年第3期233-236,共4页
Journal of Anhui Agricultural University
基金
安徽省重点课题"安徽森林植物检疫病虫害监控研究"部分内容
关键词
幼虫
锈色粒肩天牛
空间分布型
有虫株率
国槐害虫
风景林
Apriona swainsoni Hope
spatial distribution pattern
ratio of larva stricken
Sophora japonica L.
