| 黑色软蚧蚜小蜂空间分布型及抽样技术研究 |
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| 引用本文： | 周琳,蔡如希.黑色软蚧蚜小蜂空间分布型及抽样技术研究[J].河南林业科技,2002,22(2):1-2,47. |
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| 作者姓名： | 周琳 蔡如希 |
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| 作者单位： | 1. 河南省林业科学研究所,郑州,450008
2. 四川农业大学农学院植保系 |
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| 摘 要： | 黑色软蚧蚜小蜂在柑桔园内的空间分布型为聚集分布 ,分布的基本成分为个体群 ,其聚集度具有密度依赖性。利用Iwao公式的α、β参数确定了理论抽样数和序贯抽样方案。
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| 关 键 词： | 黑色软蚧蚜小蜂 空间分布型 抽样技术 |
| 文章编号： | 1003-2630(2002)02-0001-03 |
The spatial distribution pattern and sampling technique of Coccophagus yoshidae Nakayama |
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| Zhou lin.The spatial distribution pattern and sampling technique of Coccophagus yoshidae Nakayama[J].Journal of Henan Forestry Science and Technology,2002,22(2):1-2,47. |
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| Authors: | Zhou lin |
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| Abstract: | The spatial distribution pattern of Coccophagus yoshidae Nakayama belongs to aggregated distribution . The level of aggregation varied with the population density of C. yoshidae. A suitable sampling numbers and Kuno's sequential sampling were also proposed by substitution of α and β from Iwao's regression equation. |
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| Keywords: | Coccophagus yoshidae Nakayama spatial distribution pattern sampling |
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