文献类型：期刊文献

中文题名：二氧化硫污染对靖远松叶蜂暴发的促进作用研究

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

作者：张真[1] 张云[1] 王鸿斌[1] 周淑芷[1]

第一作者：张真

机构：[1]中国林业科学研究院森林生态环境与保护研究所

年份：2002

卷号：38

期号：6

起止页码：66-73

中文期刊名：林业科学

外文期刊名：Scientia Silvae Sinicae

收录：CSTPCD;;Scopus;北大核心:【北大核心2000】；CSCD:【CSCD2011_2012】；

基金：国家"九五"攻关项目"重大森林病虫害控制技术研究"课题中"叶蜂类害虫控制技术"部分研究内容 (96 0 5 0 4 0 3 0 2 )

语种：中文

中文关键词：促进作用;靖远松叶蜂;二氧化硫污染;二氧化硫浓度;平均相对生长率;油松;针叶;有虫株率

外文关键词：Diprion jingyuanensis Xiao and Zhang, Pinus tabulaeformis Carr, Sulfur dioxide pollution, Mechanism

分类号：S763.712.4

摘要：本文试图从SO2 污染角度探讨靖远松叶蜂 (DiprionjingyuanensisXiaoandZhangHymenoptera :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 2 5 5 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 0 5 ,P =0 0 17)。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 (5 10 μL·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 0 5 ,P =0 0 1)。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 0 5 ,P =0 0 9) 。
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 SO 2 (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 SO 2 (510?μL), and the difference was striking ( n=5,α=0 05,P=0 01 ). High concentration of SO 2 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 SO 2 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 SO 2 pollution area ( α=0 05,P=0 09 ),but the content of nitrogen in needles at SO 2 polluted place was lower than non SO 2 pollution area.