| 褐飞虱迁飞轨迹研究 |
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| 引用本文： | 程极益,包云轩.褐飞虱迁飞轨迹研究[J].南京农业大学学报,1995,18(3):60-67. |
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| 作者姓名： | 程极益 包云轩 |
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| 作者单位： | 南京农业大学植物保护学系 |
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| 基金项目： | 国家自然科学基金，中英农业科技合作项目 |
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| 摘 要： | 借鉴现代统计－天气理论中的大气传输与扩散模型，对褐飞虱秋季回迁的轨迹进行模拟，计算了回迁昆虫在高空１０００ｍ和１５００ｍ的迁飞轨迹，通过对比分析，发现两高度的轨迹在迁飞方向、迁飞速度和迁飞距离上存在着较大的差异；通过对迁飞风场和迁温度场的分析，进一步证实了１０００ｍ高度的迁飞轨迹模拟能够更直接、更准确地反映出昆虫迁飞的实际情况，同时对导致１０００ｍ和１５００ｍ两高度轨迹差异的环流进行了归类，定性地
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| 关 键 词： | 褐飞虱 迁飞轨迹 最适温层 天气条件 |
STUDY ON THE MIGRATION TRAJECTORIES OF NILAPARVATA LUGENS |
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| Cheng Jiyi, BaO Yunxuan, Fan Duoqi, Wang Haikou and Cheng Xianian.STUDY ON THE MIGRATION TRAJECTORIES OF NILAPARVATA LUGENS[J].Journal of Nanjing Agricultural University,1995,18(3):60-67. |
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| Authors: | Cheng Jiyi BaO Yunxuan Fan Duoqi Wang Haikou and Cheng Xianian |
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| Abstract: | The paper simulated the trajectories of autumn migtation of Nilaparvala lugens (St al) by using the atmospheric transport and dispersion model in the east ofChina. Where 1. 0 km and 1. 5 km trajectories could be generated from the same source, they were assumed to represent the practical migration and traditional calculation height of Nalaparvala lugens(St al). Many differences in direction, speed and distance were shown by the subjects which consequently crossed quite different areas. This paper also analysed the effects of different weather types on them. |
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| Keywords: | Nilaparvala lugens (St al) migration trajectory maximum wind level upper boundary of insects migration optimum temperature layer weather type |
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