2003年我国稻纵卷叶螟发生特征及其灾变大气背景的研究  

Study on the occurrence pattern of the rice leaf roller and the atmospheric backgrounds of its catastrophic events in 2003

作　　者：包云轩[1] 王永平 严明良 袁成松 于晓丽[3] 

机构地区：[1]南京信息工程大学应用气象学院,南京210044 [2]南京市气象局,南京210008 [3]南京农业大学农业部病虫监测与治理重点开放实验室,南京210095

出　　处：《气象科学》2008年第2期184-189,共6页Journal of the Meteorological Sciences

基　　金：国家自然科学基金项目(30671340)

摘　　要：2003年我国稻纵卷叶螟的灾变造成了水稻的明显减产。本文以GIS为平台,对2003年我国稻纵卷叶螟发生的大气环流背景进行了研究。结果表明:(1)2003年我国稻纵卷叶螟发生情况特重。(2)850 hPa大气环流形势对稻纵卷叶螟的迁飞和降落有重要的宏观调控作用。(3)850 hPa风场上的盛行偏南风对稻纵卷叶螟北迁有利,925 hPa风场上的盛行偏北风对南迁有利,这两个高度上的风向反气旋式切变对害虫迁入和降落十分有利。(4)迁飞路径上的降水对稻纵卷叶螟的降落有迫降作用,但南迁过程中降水作用明显小于北迁。In 2003, the catastrophic occurrence of the rice leaf rollers （ Cnaphalocris medinalis Guenee） took evident lost to the rice production in China. In this paper, GIS was selected as a support basis and the atmospheric circulation backgrounds of the rice leaf rollers occurred in 2003 were analyzed. The researches results followed as： （ 1 ） In 2003, the occurrence of the rice leaf rollers in China was very serious. （2）The current situation of atmospheric general circulation on 850hPa isobaric surface played important transferring and controlling parts on the migrations and landings of the rice leaf rollers. （3） The prevailing deflected-northward wind was favorable to the migrations northward of rice leaf rollers and the deflected-southward wind was advantageous to the migrations southward. The regions with anticyclonic curvatures were beneficial to the immigrating and landing. （4）The rainfall on the migrating paths of the rice leaf rollers played a crash role in the intensive landings of the pest and the effects of this role in the processes of migration southward were less than the effects in the migration northward.

关 键 词：稻纵卷叶螟 GIS 大气背景 

分 类 号：P462[天文地球—大气科学及气象学]