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›› 1987, Vol. 23 ›› Issue (zj2): 27-34.

• 论文及研究报告 • 上一篇    下一篇

封山育林控制马尾松毛虫机制的研究

周鼎英 孙明雅 刘政   

  1. 广西值族自治区林业科学研究所,广西钦州地区林业科学研究所
  • 收稿日期:1986-04-21 修回日期:1900-01-01 出版日期:1987-12-25 发布日期:1987-12-25

STUDIES ON THE MACHANISM OF CONTROLLING DENDROLIMUS pUNCTATUS BY CLOSED FOREST

Zhou Dingying,Sun Mingya,Liu Zheng   

  1. Forest Research Institute,Guangxi Zhuang Autonomous Region;Forest Research Institutet Qinzhou Prefecture of Guangxi Zhuang Automous Region
  • Received:1986-04-21 Revised:1900-01-01 Online:1987-12-25 Published:1987-12-25

摘要: 钦州市三十六曲林场为松毛虫发生的重灾区,年发生3-4代,以3代为主。七十年代以来,每两年松毛虫猖獗危害一次。经封山育林后,十二年来,马尾松林经历了六次虫害,均未猖獗成灾。其林下植被种类增加,覆盖率提高,改变了马尾松纯林的生态环境;马尾松毛虫的天敌种类和种群数量明显增加,抑制了松毛虫猖獗危害,节省了防治经费,增加了立木蓄积量,有明显的经济和生态效益。可以认为,封山育林是当前综合治理松毛虫的根本措施之一.

Abstract: The masson pine Pinus massoniana in the Sartshiliuqu Forest Farm is frequently and severely infested by the pine caterpillar Dendrolimus punctatus.The pest has three-four generations a year,chiefly three generations.The outbreak of the pest has taken place every two years since 1970s.For the last 12 years,after closing the masson pine forest,the forest has the ability to Stalld severe infes rations,while the masson pine forest of the eighbourhood was seriously damaged.It is proved that the closed forest has the advantages for less investment and good results in the control of the pest.As a result of closing the forest,the species of the undergrowth increase and the coverage rises.The community of the masson pine forest is then fundamentally changed.Moreover,the nature enemies,both species and populations of the masson pine eaterpillar apparently increase in the closed forest compared with the unclosed one.Thus closing the forest can improved the self-regaintion and natural control functions of the masson pine forest and obviously restrain the massion pine caterpillar rampaging.To close the forest,is therefor,the basic measure for the control of the pest.The 1000 ha.masson pine forest has been closed for 12 years,the outbreak of the pest does not occurr;thus。The control COSt has been cut down,the growing Stook has increased.