Population dynamics of Dendrolimus punctatus in different pine forest

Abstract

Abstract: The population dynamics of Dendrolimus punctatus was analyzed by investigation of the larva occurrence numbers,damaged area and percent of trees with larva in five different pine forest from 1992 to 2001.The results showed that the greatest larva numbers,highest infest,and shortest outbreak period of D.punctatus were occurred in pure pine forest,while less in the mixed pine forest with cedar,and the least in the mixed pine forest with broad-leaved trees.

Key words: Changbai Mountains, Primitive Korean pine and broad-leaved climax forest, Secondary Populus davidiana and Betula platyphylla forest, Root biomass, Underground C and N storage

CLC Number:

Q968

WANG Guohong, LIU Xingping, GE Feng, LI Zhengyu . Population dynamics of Dendrolimus punctatus in different pine forest[J]. cje, 2005, (4): 355-359.

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