2008年广西褐飞虱发生特点及灾变气候背景分析  

Analysis of Occurrence Pattern of Brown Planthopper,Nilaparvata lugens(Stl) in 2008 and Its Climate Background in Guangxi

作　　者：唐广田[1] 邹丽霞[1] 谭宗琨[2] 

机构地区：[1]桂林市气象局,广西桂林541001 [2]广西壮族自治区减灾研究所/国家卫星气象中心遥感应用示范基地,南宁530022

出　　处：《中国农学通报》2015年第13期267-272,共6页Chinese Agricultural Science Bulletin

基　　金：公益性气象行业专项课题"农作物病虫害发生气象条件监测;预警与评价技术"(GYHY20100626);广西自然科学基金项目"稻飞虱发生的气象监测预警技术研究"(2011GXNSFA018098);广西科技攻关项目(桂科攻10100004-6)

摘　　要：为了给褐飞虱监测预警及防治工作提供科学依据,本研究利用2008年广西13个植保站资料,结合气温、降水、NCEP/NCAP气象资料,借助ArcGIS及GrADS平台,研究广西褐飞虱的发生特点及灾变性迁入的气候背景。结果表明:2008年广西褐飞虱始见期偏早、终见期偏迟,盛发时间长达222天;褐飞虱迁入虫量大,占稻飞虱比例高,为害有提早趋势;3—4月气温偏高是广西褐飞虱偏早迁入的重要原因,6—10月夜间适当强度、多频次的降水是当年褐飞虱当年迁入峰次多、降虫量大的主导因素;4—8月850hPa风场上偏南暖湿气流是褐飞虱从中南半岛各国北迁至广西的重要动力,而9—10月925hPa高度频繁的偏北气流有利于褐飞虱从江西、湖南等地回迁至广西。In order to provide scientific basis for monitoring, preventing and wiping out the brown plant hopper （BPH） pests, the author analyzed the pattern of BPH＇ s occurrence and its climate background of catastrophic immigrations in Guangxi based on the pest data of 13 plant protect stations combining with climatological data of temperature and rainfall and NCEP/NCAP through AreGIS and GRADS. The results showed that： the BPH ＇ s immigration beginning date in Guangxi 2008 was early and the immigration ending date was comparatively late, the pest boom period lasted as long as 222 days; the quantity of immigrating BPH was large and took high percentage of plant hoppers, it had a tendency of early damage year by year; the high temperature from March to April was the primary reason of the early immigration of BPH in Guangxi; the appropriate intensity and multi-frequency of rainfall at nights from June to October was the leading factor which caused the multiple BPH immigration peaks and great amount of pest in 2008; the warm and moist southerly airstream at 850 hPa from April to August was an important driving force for the BPH＇s immigration into Guangxi from the Indo- China peninsula countries while the frequent northerly airstream at the height of 925 hPa provided the condition for the BPH＇ s moving back to Guangxi from provinces of Jiangxi and Hunan.

关 键 词：广西壮族自治区 褐飞虱 灾变 气候背景 

分 类 号：S-3[农业科学]