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cje ›› 2005, Vol. ›› Issue (4): 355-359.

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Population dynamics of Dendrolimus punctatus in different pine forest

WANG Guohong1, LIU Xingping2,3, GE Feng3, LI Zhengyu 1   

  1. 1. College of Resources and Environment, Beijing Forestry University, Beijing 100083, China;
    2. College of Gardening and Art Designing, Jiangxi Agricultural University, Nanchang 330045, China;
    3. Institute of Zoology, Chinese Academy of Sciences, Beijing 100080, China
  • Received:2003-10-20 Revised:2004-05-10 Online:2005-04-10

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

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