Abstract: Broadleaved Korean pine forest, birch forest, and larch forest were selected to compare the moth community structure and diversity in Changbai Mountains, Northeast China. In the three forest types, the proportional allocation of moth families (subfamiles) was apparently different. In broadleaved Korean pine forest, Geometridae was absolutely dominant, occupying 47.0% of the total, followed by Notodontidae, occupying 9.3%. The dominant species was Eustroma changi, occurring at 17.2%. As for the total species number and total individual number, the moth species richness, abundance, and diversity index in birch forest were significantly higher, but the moth dominance index in this forest was the lowest, as compared with those in broadleaved Korean pine forest and larch forest. The moth dominant species in birch forest wereSerraca punctinalis conferenda, Deileptenia ribeata, and Lomographa bimaculata subnotata. In larch forest, the species abundance of Arctiidae, Thyatiridae, and Lasiocampidae was higher than that in broadleaved Korean pine forest and birch forest, and the dominant species was Bombycia ampliata.

Key words: soil of pure forest, humus, biochemical property, litter.