Effect of Arthropod Community Structure In Transgenic Hybrid Poplar 741

The arthropod community of transgenic 741 poplar was analyzed from three aspects of community structure, temporal structure and nutritional structure.The results show that:on compositive structure,main compositive groups of the community structure were Coleoptera、LepidopteraAraneae,Homoptera and Hymenoptera in Pb29 and CK; On nutrition strcture, function groups on every nutrition level were similar between Pb29 and CK,but in Pb29 leaf-eating pest on bascal species largely decreased,the rate of intermediate species increase,top species have no obviously changing;on temporal structure, numbers of individual and species of Lepidoptera in Pb29 and CK has similarly changing tendency,function groups and every nutritionalasses with individual numbers and species,there have similarly changing tendency.