二氧化硫污染对靖远松叶蜂暴发的促进作用研究

doi:10.11707/j.1001-7488.20020612

林业科学 ›› 2002, Vol. 38 ›› Issue (6): 66-73.doi: 10.11707/j.1001-7488.20020612

二氧化硫污染对靖远松叶蜂暴发的促进作用研究

张真张云王鸿斌周淑芷

中国林业科学研究院森林生态环境与保护研究所,北京100091

收稿日期:2001-07-12 修回日期:1900-01-01 出版日期:2002-11-25 发布日期:2002-11-25

SULFUR DIOXIDE POLLUTION CONTRIBUTES TO OUTBREAK OF THE SAWFLY DIPRION JINGYUANENSIS XIAO AND ZHANG (HYMENOPTERA:DIPRIONIDAE)

Zhang Zhen,Zhang Yun,Wang Hongbin,Zhou Shuzhi

Research Institute of Forest Ecology, Environment and Protection,CAF Beijing100091

Received:2001-07-12 Revised:1900-01-01 Online:2002-11-25 Published:2002-11-25

摘要/Abstract

摘要：

本文试图从SO₂ 污染角度探讨靖远松叶蜂(Diprion jingyuanensis Xiao and Zhang Hymenoptera :Diprion idae膜翅目,松叶蜂科)的暴发原因。室内模拟污染的实验表明,靖远松叶蜂幼虫取食SO₂ (日最高浓度255 μL·L^-1)熏蒸过的油松针叶后,平均相对生长率比对照增加了17% ,并且差异显著(n=5,α=0.05,P =0.017)。这充分说明经一定浓度SO2 污染的油松针叶可促进靖远松叶蜂的生长,从而有利于SO₂ 污染区的靖远松叶蜂暴发成灾。靖远松叶蜂幼虫取食在高浓度SO₂ (510μL·L^-1)熏蒸下的油松针叶平均相对生长率比对照减少8% ,且差异显著(n=5,α=0.05,P=0.01)。高浓度的SO₂ 污染可能抑制靖远松叶蜂的生长。野外实验中,SO₂ 污染区油松的有虫(靖远松叶蜂)株率和地面平均茧密度大于非污染区。另外,关于SO₂ 污染对靖远松叶蜂暴发的促进作用的机理进行了探索。SO₂ 污染区油松针叶的全硫含量显著大于非污染区(α=0.05,P=0.09) ,全氮含量小于非污染区。

关键词: 靖远松叶蜂, 油松, 二氧化硫污染, 机理

Abstract:

The effects of sulfur dioxide pollution from local factories to the outbreak of Diprion.jingyuanensis Xiao and Zhang were studied. Simulated pollution experiment in laboratory indicated that mean relative growth rate (MRGR) of D.jingyuanenisis larvae increased by 17% compared to CK, after they were fed with pine (Pinus tabulaeformis Carr.) needle which were fumigated by SO₂ (the highest concentration in a day was 255 μL) and the difference was remarkable (n=5,α=0.05,P=0.017). This revealed that the growth of D.jingyuanensis larvae could be enhanced after they were fed with contaminated needles in certain sulfur dioxide concentration. D.jingyuanensis in polluted area was easy to outbreak. Nevertheless, MRGR of D.jingyuanensis larvae was reduced by 8% compared to CK. after they were fed with pine needles which were fumigated by high concentration SO₂ (510 μL), and the difference was striking (n=5,α=0.05,P=0.01). High concentration of SO₂ seemed to hamper the growth of D.jingyuanensis larva. In the field the damage degree and cocoons density in polluted area was higher than non pollution area. In addition, the mechanism why SO₂ pollution was able to accelerate the outbreak of the sawfly was explored. The content of sulfur in pine needle in sulfur dioxide polluted territory was significantly higher than non SO₂ pollution area (α=0.05,P=0.09),but the content of nitrogen in needles at SO₂ polluted place was lower than non SO₂ pollution area.

Key words: Diprion jingyuanensis Xiao and Zhang, Pinus tabulaeformis Carr, Sulfur dioxide pollution, Mechanism

张真张云王鸿斌周淑芷. 二氧化硫污染对靖远松叶蜂暴发的促进作用研究[J]. 林业科学, 2002, 38(6): 66-73.

Zhang Zhen;Zhang Yun;Wang Hongbin;Zhou Shuzhi. SULFUR DIOXIDE POLLUTION CONTRIBUTES TO OUTBREAK OF THE SAWFLY DIPRION JINGYUANENSIS XIAO AND ZHANG (HYMENOPTERA:DIPRIONIDAE)[J]. Scientia Silvae Sinicae, 2002, 38(6): 66-73.

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二氧化硫污染对靖远松叶蜂暴发的促进作用研究

SULFUR DIOXIDE POLLUTION CONTRIBUTES TO OUTBREAK OF THE SAWFLY DIPRION JINGYUANENSIS XIAO AND ZHANG (HYMENOPTERA:DIPRIONIDAE)

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