生态学报2017，Vol.37Issue(6)：1832-1843,12.DOI:10.5846/stxb201510232144
四川地区白背飞虱虫源地分析及迁入路径
Origins and migration pathways of white-backed planthopper Sogatella furcifera (Horváth) in Sichuan
摘要
Abstract
We analyzed the distribution of the origins and migration pathways of white-backed planthoppers (WBPHs),Sogatella furcifera (Hemiptera;Insecta),in Sichuan,China.The WBPHs were collected daily from light traps at seventeen stations between May and July,2012.The trajectories and distributions of the source areas during the peak days of WBPH migration were simulated and analyzed using HYSPLITY4.8 (Hybrid Single-Particle Lagrangian Integrated Trajectory) and ArcGIS.Additionally,the meteorological backgrounds of the WBPH immigration peak source areas were analyzed using Grads (Grid Analysis and Display System).During the early migratory stage (May-June),S.furcifera congregated in the southern and eastern areas of Sichuan.WBPHs from south Sichuan traveled to northern Vietnam and Laos,and to the southeast and northeast of Yunnan Meanwhile,WBPHs sourced from the eastern parts of Sichuan were found south of Chongqing,west of Hu'nan,and at the border junction of Hu'nan,Hubei,and Chongqing (which partly extends into southwestern Guangxi).In July,influenced by the southwesterly,southerly,and southeasterly winds,the WBPH sources were widely distributed in Yunnan,Guizhou,Chongqing,Guangxi,Hu'nan,and Hubei.The main sources in early July were Yunnan,part of mid-western Guangxi,and west of Guizhou.In mid-July,the sources shifted to the northeast,namely,northeastern Yunnan to central Guizhou.Meanwhile,WBPHs originating from south Sichuan may have migrated to central and eastern Sichuan.In late July,WHPHs may have traveled from western to northern Sichuan.At other stations,the source distributions were more average.We also found four main migratory paths of WBPHs in Sichuan.The first path extends from west Guizhou to south Sichuan.Under southwest and southerly airflows,the path continues through northeast Guizhou,Chongqing,to east Sichuan.The second path extends from central Guizhou to south Sichuan,or (aided by a southerly wind) through northeast Guizhou,Chongqing to east Sichuan.The third path extends from Hunan,through Chongqing,and to east Sichuan.This path is helped by southeast and southerly air flows.The fourth path extends from Yunnan to west Sichuan under a southerly airflow.Because of the spatial topography,the WBPHs tended to migrate from southeast to northwest during the beginning and mid-period of the migration.The migration peaks varied at different stations and in different periods.The migration of WBPHs in Sichuan generally peaked in July,whereas the WBPH migrations in southern and eastern Sichuan peaked to a lesser extent in May and June.Overall,the major migration peaks were reduced from southeast to northwest.The accurate monitoring and prediction of WBPH in Sichuan is important.关键词
白背飞虱/虫源地/迁入路径/风场分析Key words
white-backed planthopper/source area/migration pathway/wind field analysis引用本文复制引用
毕建春,陈星燎,蒋春先,李庆,封传红,马利,王海建,杨群芳..四川地区白背飞虱虫源地分析及迁入路径[J].生态学报,2017,37(6):1832-1843,12.基金项目
国家自然科学基金资助项目(31201504) （31201504）
四川省农作物及畜禽育种攻关项目(2011nz20098-17) （2011nz20098-17）
