红梨园梨二叉蚜种群空间格局与抽样技术研究  

Spatial Patterns and Sampling Technique of Schizaphis piricola Matsumura in Red Pear Plantation

作　　者：周玖璇 杨松[2] 

机构地区：[1]云南思力生态替代技术中心,云南昆明650224 [2]西南林业大学保护生物学学院,云南昆明650224

出　　处：《安徽农业科学》2010年第15期7931-7932,8005,共3页Journal of Anhui Agricultural Sciences

基　　金：云南省森林灾害预警与控制重点实验室资助项目(ZK09-A103)

摘　　要：运用5种聚集度指标与2种回归分析方法对红梨园梨二叉蚜(Schizaphis piricola Matsumura)种群空间格局进行了研究。结果表明,在整个调查期间内,红梨园梨二叉蚜均呈聚集分布,且种群处于扩散和聚集交替进行的动态过程中。利用Iwao法确定了红梨园梨二叉蚜不同种群密度下的田间理论抽样数。The spatial pattern of Schizaphis piricola Matsumura in red pear plantation was analyzed by using five indices of aggregation and two regression models.The results showed that the spatial pattern of Schizaphis piricola was aggregated distribution and its population alternatively presented aggregation and dispersion during the whole investigation.The theoretical sampling numbers of Schizaphis piricola in red pear plantation were also determined by Iwao principle.

关 键 词：梨二叉蚜 红梨 空间格局 抽样技术 

分 类 号：S436.612.29[农业科学—农业昆虫与害虫防治]