| 荔枝蝽成虫空间分布型及其抽样技术 |
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| 引用本文： | 徐金汉,叶建如. 荔枝蝽成虫空间分布型及其抽样技术[J]. 福建农林大学学报(自然科学版), 1991, 0(3) |
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| 作者姓名： | 徐金汉 叶建如 |
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| 作者单位： | 福建农学院植物保护系，福建省沙县烟草公司 福州 350002，沙县 365500 |
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| 摘 要： | 本文用6种聚集度指标研究了荔枝蝽成虫空间分布型和抽样技术.结果表明:(1)荔枝蝽成虫的空间分布属于聚集分布;(2)荔枝蝽成虫的田间理论抽样数可用n=(1.644)/D~2·x~(-0.98)来估计;(3)荔枝蝽成虫密度在每梢0—1.5头的范围内,其虫梢率与百梢虫量的关系可用γ=238x-15.95来表示.
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| 关 键 词： | 荔枝蝽 空间分布型 抽样法 |
The Spatial Distribution Pattern and Sampling Methods for the Adult of Litchi Stink Bug |
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| Xu Jinhan Ye Jianru. The Spatial Distribution Pattern and Sampling Methods for the Adult of Litchi Stink Bug[J]. Journal of Fujian Agricultural and Forestry University, 1991, 0(3) |
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| Authors: | Xu Jinhan Ye Jianru |
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| Affiliation: | Xu Jinhan~1 Ye Jianru~2 |
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| Abstract: | The spatial distribution pattern and sampling methods for the adult of litchi stink bug (Tessaratoma papillosa Drury) are analysed with six species aggregation indices. The results are as follows: (1)The spatila distribution for the adult of litchi stink bug belongs to the aggregated distribution; (2)Thcoretical sampling numbers of field survey for the adult of litchi stink bug can be estimated by n=(1.644/D~2)·x~(-0.98)); (3)When the population densities range from 0 to 1.5 each shoot, the relation between the percentage of the shoots containing with insects and the numbers of insects of 100 shoots can be estimated by y=238x-15.95. |
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| Keywords: | litchi stink bug spatial distribution pattern sampling methods |
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