草履蚧种群地下空间分布  

Spatial distribution of Drosicha corpulenta under ground

作　　者：王鹏[1] 吴进才[1] 董波[1] 仇正华[1] 胡中卫[1] 

机构地区：[1]扬州大学农学院植物保护系,扬州225009

出　　处：《昆虫知识》2005年第4期412-415,共4页Entomological Knowledge

摘　　要：通过对草履蚧Drosichacorpulenta(Kuwana)种群地下空间分布调查的研究结果表明,草履蚧在树冠下土壤中的分布规律、分布量与距树干的距离远近有关,集中分布于树干根基部地面以下0～5cm的土层中。用多种聚集度指标分析了草履蚧种群的地下空间分布型,结果表明各组的L,mx的值均大于1;CA,I值均大于0,扩散系数C值大于置信区间上限,(C大于1)表明草履蚧在土壤中呈聚集分布。The underground disitribution of Drosicha corpulenta （Kuwana） population was investigated. The distribution and population of the insect were correlated to distance from the base of tree truck, mainly distributing in 0 to 5 cm soil depth from the base of tree truck. The analysis of spatial distribution pattem using various distribution pattem indices indicated L, m^＊ /x^- and C were greater than 1, and CA and I were greater than 0, demonstrating that the insect was aggregative distribution.

关 键 词：草履蚧 空间分布 聚集度指标 空间分布型 地下 种群 研究结果 分布规律 集中分布 指标分析 

分 类 号：S763.35[农业科学—森林保护学] S433[农业科学—林学]