云南不同海拔花椒园昆虫群落结构及动态  

Insect community structure and its dynamics in Chinese prickly ash plantations at different altitudes in Yunnan Province

作　　者：张承祚[1] 姚利忠[1] 李强[1] 李正跃[1] 宋家雄 阮应珍 

机构地区：[1]云南农业大学植物保护学院,昆明650201 [2]云南省昭通市植保植检站,昭通657000

出　　处：《应用生态学报》2006年第5期915-919,共5页Chinese Journal of Applied Ecology

基　　金：云南省科技计划资助项目(2003NG10)

摘　　要：调查了4种不同海拔花椒园昆虫群落组成及结构的周年变化,应用群落特征参数及主分量分析方法分析了昆虫群落特征及其在时间过程中的主导因素和时间格局.结果表明,随着海拔的逐渐上升,昆虫群落中种类数量逐渐减少,种群数量相对增加,群落多样性、丰富度及均匀度等指数逐渐下降,随时间的变化而波动的趋势逐渐明显,主导昆虫群落变化的最主要因子由天敌亚群落的物种数和个体数量综合因子逐渐转向害虫亚群落的物种数和个体数量综合因子.With community character indices and principal component analysis, this paper studied the variation of insect community composition and structure in Chinese prickly ash plantations at four altitudes in Yunnan Province, and analyzed the temporal patterns of the variation and its affecting factors. The results showed that with the increase of altitude, the species diversity, abundance and evenness of the community decreased gradually, while the population number had a certain increase. Such a variation was more obvious with time. The factor dominating the variation was the gradual change of the species and individuals numbers of natural enemy sub-community to those of pest sub-community.

关 键 词：花椒 昆虫群落 海拔 时间格局 主分量分析 

分 类 号：S186[农业科学—农业基础科学] S573.9