| IMPACT OF ATMOSPHERIC LOW-FREQUENCY OSCILLATION ON THE IMMIGRATION OF NILAPARVATA LUGENS(STL) IN HUNAN AND JIANGXI PROVINCES |
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| 引用本文： | 孙思思,包云轩,郑腾飞,陆明红,谢晓金.IMPACT OF ATMOSPHERIC LOW-FREQUENCY OSCILLATION ON THE IMMIGRATION OF NILAPARVATA LUGENS(STL) IN HUNAN AND JIANGXI PROVINCES[J].热带气象学报(英文版),2018,24(2):209-219. |
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| 作者姓名： | 孙思思 包云轩 郑腾飞 陆明红 谢晓金 |
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| 摘 要： | Various features of the atmospheric environment affect the number of migratory insects, besides their initial population. However, little is known about the impact of atmospheric low-frequency oscillation(10 to 90 days) on insect migration. A case study was conducted to ascertain the influence of low-frequency atmospheric oscillation on the immigration of brown planthopper, Nilaparvata lugens(Stl), in Hunan and Jiangxi provinces. The results showed the following:(1) The number of immigrating N. lugens from April to June of 2007 through 2016 mainly exhibited a periodic oscillation of 10 to 20 days.(2) The 10-20 d low-frequency number of immigrating N. lugens was significantly correlated with a low-frequency wind field and a geopotential height field at 850 h Pa.(3) During the peak phase of immigration, southwest or south winds served as a driving force and carried N. lugens populations northward, and when in the back of the trough and the front of the ridge, the downward airflow created a favorable condition for N. lugens to land in the study area. In conclusion, the northward migration of N. lugens was influenced by a low-frequency atmospheric circulation based on the analysis of dynamics. This study was the first research connecting atmospheric low-frequency oscillation to insect migration.
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| 关 键 词： | atmospheric low-frequency oscillation Nilaparvata lugens (St?l) immigrating number cycle of 10-20 days atmospheric circulation |
| 修稿时间： | 2018/3/15 0:00:00 |
IMPACT OF ATMOSPHERIC LOW-FREQUENCY OSCILLATION ON THE IMMIGRATION OF NILAPARVATA LUGENS (ST?L) IN HUNAN AND JIANGXI PROVINCES |
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| SUN Si-si,BAO Yun-xuan,ZHENG Teng-fei,Lu Ming-hong and Xie Xiao-jin.IMPACT OF ATMOSPHERIC LOW-FREQUENCY OSCILLATION ON THE IMMIGRATION OF NILAPARVATA LUGENS (ST?L) IN HUNAN AND JIANGXI PROVINCES[J].Journal of Tropical Meteorology,2018,24(2):209-219. |
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| Authors: | SUN Si-si BAO Yun-xuan ZHENG Teng-fei Lu Ming-hong and Xie Xiao-jin |
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| Institution: | Collaborative |
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| Abstract: | Various features of the atmospheric environment affect the number of migratory insects, besides their initial population. However, little is known about the impact of atmospheric low-frequency oscillation (10 to 90 days) on insect migration. A case study was conducted to ascertain the influence of low-frequency atmospheric oscillation on the immigration of brown planthopper, Nilaparvata lugens (St?l), in Hunan and Jiangxi provinces. The results showed the following: (1) The number of immigrating N. lugens from April to June of 2007 through 2016 mainly exhibited a periodic oscillation of 10 to 20 days. (2) The 10-20 d low-frequency number of immigrating N. lugens was significantly correlated with a low-frequency wind field and a geopotential height field at 850 hPa. (3) During the peak phase of immigration, southwest or south winds served as a driving force and carried N. lugens populations northward, and when in the back of the trough and the front of the ridge, the downward airflow created a favorable condition for N. lugens to land in the study area. In conclusion, the northward migration of N. lugens was influenced by a low-frequency atmospheric circulation based on the analysis of dynamics. This study was the first research connecting atmospheric low-frequency oscillation to insect migration. |
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| Keywords: | , , , , |
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