作　　者： ; (黄诚）;

机构地区： 华南农业大学

出　　处： 《江西科学》 2000年第2期81-85,共5页

摘　　要： 对安徽沿江棉田棉铃虫卵的空间分布动态规律进行了调查研究 ,结果表明棉铃虫卵在棉田的聚集程度随发生代次而逐渐增强 ,发现不同代次虫口密度相同时理论抽样数明显不同 ,提出了沿江各代估值调查中的理论抽样数 ,并对几种空间格局模型拟合棉铃虫的空间分布情况作了比较。 The dynamics of spatial pattern of Helicoverpa ar migera egg s in cotton fields in Yanjiang were studied. The results showed that:the aggreg ation would increase when the generation of cotton bollworm went on; sampling nu mber of cotton plants were obviously different when the densities of the populat ion of different generations were equal and the reasonable sampling number was g iven; different models of spatial pattern were compared.

关 键 词： 棉铃虫 空间格局 时序动态 棉田 虫卵 安徽

领　　域： [农业科学] [农业科学]