| 荔枝尖细蛾幼虫空间格局及抽样技术研究 |
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| 引用本文： | 刘奎.荔枝尖细蛾幼虫空间格局及抽样技术研究[J].热带农业科技,2002,25(2):11-13. |
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| 作者姓名： | 刘奎 |
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| 作者单位： | 中国热带农业科学院植物保护研究所,海南,儋州,571737 |
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| 摘 要： | 通过应用种聚集度指数和种回归方法,对荔枝尖细蛾幼虫的空间格局和抽样技术进行研究。所有指52标表明,荔枝尖细蛾幼虫在田间呈聚集分布,分布的基本成分是个体群,且个体间相互吸引。在空间格局研究的基础上提出了理论抽样数,并通过不同抽样方式的精度比较,得出平行线抽样方式最佳。
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| 关 键 词： | 荔枝尖细蛾 幼虫 空间分布型 抽样方法 |
| 文章编号： | 1009-1335(2002)02-0011-03 |
| 修稿时间： | 2001年6月5日 |
Study on the spatial pattems andsampling techniques of Conopaworpha litchiella Bradley larvae |
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| LIU Kui.Study on the spatial pattems andsampling techniques of Conopaworpha litchiella Bradley larvae[J].Tropical Agricultural Science & Technology,2002,25(2):11-13. |
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| Authors: | LIU Kui |
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| Abstract: | Two regression models and five indices of aggregation were used to examine the spatial patterns of Cono-pomorpha litchiella Bradley larvae. All indices indicated that the distribution of Gonopomorpha litchiella Bradley larvae was of an aggregated pattern. The larvae occur as colonies and the distribution of the colonies is aggregated. The theory sampling number was presented on the base of the spatial pattern. Several sampling methods were compared and the results showed that the parallel sampling method is the best. |
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| Keywords: | Conopomorpha litchiella Bradley larvae space distribution type sample methods |
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