| 劳氏粘虫幼虫在玉米田的空间分布及抽样技术研究 |
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| 引用本文： | 郭松景,李世民,马林平,李松林.劳氏粘虫幼虫在玉米田的空间分布及抽样技术研究[J].河南农业大学学报,2001,35(3):245-248. |
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| 作者姓名： | 郭松景 李世民 马林平 李松林 |
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| 作者单位： | 1. 漯河市农业科学研究所
2. 信阳市南湾试验林场 |
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| 摘 要： | 运用频次分布、聚集度指标法等方法对劳氏粘虫的空间分布型进行了研究。结果表明，劳氏粘虫幼虫在玉米田呈聚集分布，同时符合负二项分布，在空间分布空间研究的基础上提出了理论抽样数。
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| 关 键 词： | 劳氏粘虫 空间分布型 抽样技术 幼虫 玉米田 |
| 文章编号： | 1000-2340(2001)03-0245-04 |
Spatial distribution patterns and sampling techniques of Leucania loreyi duponchel in corn fields |
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| GUO Song jing,LI Shi min,MA Lin ping,et al.Spatial distribution patterns and sampling techniques of Leucania loreyi duponchel in corn fields[J].Journal of Henan Agricultural University,2001,35(3):245-248. |
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| Authors: | GUO Song jing LI Shi min MA Lin ping |
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| Abstract: | Studies were conducted to determine the spatial distribution of larvae of grain armyworm, Leucania loreyi using the methods of frequency distribution and index of aggregation, etc. Results show that the larvae of grain armyworm accord with aggregated distribution, and meanwhile, accord with negative binomial distribution in the corn fields. The theoretical sampling number was advanced based on the study on spatial distribution pattern. |
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| Keywords: | Leucania loreyi spatial distribution pattern sampling technique |
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