在中国应用垂直波束雷达监测褐飞虱和其他水稻害虫迁飞
的可行性
Joe R. Riley;A. D. Smith;D. R. Reynolds
【期刊名称】《中国昆虫科学：英文版》 【年(卷),期】2003(010)001
【摘要】The recent development of automatically operating, inexpensive vertical-looking radar (VLR) for entomological purposes has made it practical to carry out routine, automated monitoring of insect aerial migration throughout the year. In this paper we investigate whether such radars might have a role in monitoring and forecasting schemes designed to improve the management of the Brown Planthopper (BPH), Nilaparvata lugens, and of associated rice pest species in China. A survey of the literature revealed that these insects typically migrate at altitudes between 300 to 2 000 m above ground level, but calculations based on BPH radar scattering cross-sections indicated that the maximum altitude at which they individually produce signals analysable by current VLRs is only ～ 240 m. We also show that coverage over most of the flight altitudes of BPH could be achieved by building a VLR using a wavelength of 8.8 mm instead of the 3.2 cm of existing VLR, but that such a radar would be expensive to build and to operate. We suggest that a more practical solution would be to use a 3.2 cm VLR as a monitor of the aerial movement of the larger species,
from which the migration of rice pests in general might be inferred.%近年来,可用于昆虫迁飞研究且可自动运行的垂直波束雷达(vertical-looking radar,VLR)的发展使得对迁飞性害虫的周年长期自动监测成为可能.本文提供了我们对能否将这种雷达应用于中国的褐飞虱和其他水稻害虫的监测与预测体系以改善其综合治理的可行性研究结果.以往的研究已经表明,这些害虫一般在300～2000m高度迁飞;而我们根据褐飞虱的雷达和射有效截面的计算结果表明,目前使用的3.2 cm波长的VLR对褐飞虱个体目标的最大可检测高度仅约240 m;虽然建造一部8.8 mm波长的VLR即可覆盖褐飞虱迁飞高度的绝大部分,但其造价和维护费用均过于昂贵.为此,一个更可行的解决方案是,以3.2 cm波长的VLR作为包括大多数水稻害虫在内的个体较大的迁飞性害虫的监测工具. 【总页数】19页(1-19)
【关键词】雷达;迁飞;飞行;褐飞虱;水稻害虫 【作者】Joe R. Riley;A. D. Smith;D. R. Reynolds 【作者单位】 【正文语种】中文 【中图分类】Q96 【文献来源】
https://www.zhangqiaokeyan.com/academic-journal-cn_insect-science_thesis/0201255406453.html 【相关文献】
1.迁飞性害虫褐飞虱对地磁强度变化的种群适合度响应 [J], 刘瑞莹; 肖子衿; 贺静澜; 万贵钧; 潘卫东; 陈法军
2.中国褐飞虱迂飞的雷达观测研究 [J], Riley,JR; 包云轩
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在中国应用垂直波束雷达监测褐飞虱和其他水稻害虫迁飞的可行性
