[Insect species diversity in Korean pine broad-leaved mixed forest in Changbai Mountains].

The study on the insect species diversity in Changbai Mountains showed that there were 1960 insect species belonging to 26 orders, 131 families and 1162 genera, among which, 881 species were pests belonging to 11 orders and 105 families, and 638 were serious ones. In forest insect communities, defoliator insect community was more divers than natural enemy community, and predatory insects were more divers than other natural enemies. The indices of annual species evenness of defoliator insect community, parasitic insect community and predatory insect community were 0.884, 0.830, and 0.806, respectively, and the diversity changed with season was in the order of predatory insects > parasitic insects > defoliator insects.