摘要
应用最优分割法探讨了新疆苜蓿田节肢动物的时间格局，揭示了各阶段害虫、天敌发生的特点及应采取的防治措施；应用主分量分析探讨了节肢动物群落随着时间的演替规律。
The arthropod community in alfalfa field was surveyed in Xinjiang Regionfrom l989 to 1990.It is found that the arthropod community cosists of 166 species belongingto 54 falnilies of l3 orders in2 classes,among them 77 species are pests to alfalfa,35 speciesare predators and parasites,10 species are pollinators and 44 species in 15 familes are spider.The optimal sorting method is usedfor the analysis of its temporal pattern.The characteris-tics of the pests and natural enemies occuring in each stage and the corresponding manage-ment tactics are discussed.Principal component analysis method is used for approaching thearthropod community succession with the growth period.
出处
《西北农业学报》
CSCD
1996年第1期47-51,共5页
Acta Agriculturae Boreali-occidentalis Sinica
关键词
节肢动物群落
主分量分析
时间格局
苜蓿
Athropod community
Optimal sorting method
Principal component analy-sis
Temporal pattern
