Spatial distribution of springtail Ceratophysella duplicispinosa and their biological effects to the vegetable leaves in the Chinese cabbage plot were studied by using field and laboratory observation.The results showed that density of the springtail C.duplicispinosa in some vegetable plots including these of the cabbage(Brassica rapa),spinach(Spinacia oleracea) and lettuce(Lactuca sativa Linn.var.ramosa Hort.) was higher than other vegetable plot environments;the springtail tend to distributed on older or ...