作　　者： ; ;

机构地区： 广西科学院

出　　处： 《林业科技开发》 2011年第6期45-47,共3页

摘　　要： 蜡彩袋蛾是红树林的一种新害虫。应用扩散系数等6种指标分析,对蜡彩袋蛾进行了调查研究,确定了在红树林林中空间分布型为聚集分布,在此基础上给出了不同虫口密度以及不同误差要求的最适抽样数。此外,调查发现,蜡彩袋蛾主要危害桐花树和秋茄,内滩的虫口密度显著高于中滩和外滩,树高在1.6～1.7 m的秋茄的虫口密度最大。 Chalia larminati Heylaerts is a new pests of mangrove.Aggregation indices such as diffusion coefficient(C),mean crowding(m*) were used to analyze the spatial distribution of Chalia larminati Heylaerts.The results showed that the spatial distribution pattern was an assembly distribution.According to different population densities and errors,the optimum theoretical sampling numbers were given.The survey also found that Aegiceras corniculatum and Kandelia candel were more likely to suffer damage from Chalia larminati.The density of the insect in the area away from the shore is notablely higher than that in the area close to the shore and the density of the insect on the tree of K.candel with a heiht of 1.6-1.7 m is the highest.

关 键 词： 红树林 蜡彩袋蛾 空间分布型 发生规律

领　　域： [农业科学] [农业科学]