CAJ | 학술논문

为了揭示广东省稻飞虱迁入路径和虫源地分布，为其精细化预测预报及源头治理提供科学依据，根据广东省清新县、广州番禺区2010、2011年稻飞虱虫情资料，利用HYSPLIT-4轨迹分析平台和图形处理软件GrADS进行稻飞虱迁入轨迹及虫源地分析。结果表明：稻飞虱发生初见日（迁入）及各高峰日当天、前1天、前2天观测到有降水，下沉气流和降水是迫使稻飞虱集中降落的主要原因；广东省早稻期间稻飞虱主要发生在5月上旬至7月上旬，低空急流、西南气流及偏南气流为稻飞虱迁入广东提供了运载气流，其稻飞虱迁入的虫源地主要分布在越南、老挝南部、海南省及两广南部；广东省晚稻期间稻飞虱主要发生在9月上旬至10月上旬，稻飞虱随偏北气流开始由北往南回迁，稻飞虱迁入的虫源地主要分布在湖南及江西等稻区。
위료게시광동성도비슬천입로경화충원지분포，위기정세화예측예보급원두치리제공과학의거，근거광동성청신현、엄주번우구2010、2011년도비슬충정자료，이용HYSPLIT-4궤적분석평태화도형처리연건GrADS진행도비슬천입궤적급충원지분석。결과표명：도비슬발생초견일（천입）급각고봉일당천、전1천、전2천관측도유강수，하침기류화강수시박사도비슬집중강락적주요원인；광동성조도기간도비슬주요발생재5월상순지7월상순，저공급류、서남기류급편남기류위도비슬천입엄동제공료운재기류，기도비슬천입적충원지주요분포재월남、로과남부、해남성급량엄남부；광동성만도기간도비슬주요발생재9월상순지10월상순，도비슬수편북기류개시유북왕남회천，도비슬천입적충원지주요분포재호남급강서등도구。
In order to determine the immigration trajectory and source areas of rice planthopper in Guangdong Province, and to establish a basis for refined forecasting and source suppression, the geographic distribution of the source area of early immigrant rice planthopper was analyzed by GrADS (Graphics Processing Software), HYSPLIT-4, a trajectory analysis software for the simulation of migration pathways, and light trap catch data from 2 plant protection stations (including Qingxin, Panyu). The results indicated that precipitation was observed the immigrant and peaks days, as well as one day and two days ago. Downward airflow and precipitation were main two reasons of forcing rice planthopper to land focusly. The peaks of early immigrants of rice planthopper were from early May to early July for early-rice growth reason. Lower jet, southwest and south flows provided carrying force for immigrant rice planthopper, and most of the early immigrants came from Vietnam, southern Laos, Hainan Province, southern Guangdong Province and Guangxi Province. The peaks of early immigrants of rice planthopper were from early September to early October for late-rice growth reason. Rice planthopper was back moved from north to south with north flow, and source of immigrant insect distributed in the rice areas of Hunan and Jiangxi etc.