【摘要】 为探明不同茶园昆虫与蜘蛛总群落的演变规律及其稳定性,为其有害生物的综合生态调控提供理论依据,采用主成分分析排序和系统聚类分类法,在不同时期(2011年3月下旬至10月上旬)对四川名山县无公害茶园、常规茶园和有机茶园等3类茶园的昆虫与蜘蛛总群落进行群落排序和分类研究。结果表明:有机茶园和无公害茶园的昆虫与蜘蛛总群落演变符合自然规律,其中,有机茶园的群落稳定性好,无公害茶园其次;常规茶园的昆虫与蜘蛛总群落演变和规律性最差,数量变动大,总群落不稳定。更多还原

【Abstract】 In order to explore the evolution laws and stability of communities in different tea gardens and provide a theoretical basis for integrated pest management,principal component analysis(PCA)and hierarchical cluster were used to study the total communities of insects and spiders in nonpolluted tea garden,general tea garden and organic tea garden at different time from late march to early October in Sichuan Mingshan County.The results showed that the organic tea garden total community was most in accordance with natural law evolution,the community stability of which was in typical state,secondly the general tea garden,and worst the general tea garden with the instability of total community and total population fluctuation frequently.更多还原