| 桑蓝叶虫成虫空间分布型及抽样技术研究 |
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| 引用本文： | 张正新,钟勇玉,肖乃康,李玉平,薛三勋. 桑蓝叶虫成虫空间分布型及抽样技术研究[J]. 蚕业科学, 2001, 27(2): 141-144 |
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| 作者姓名： | 张正新 钟勇玉 肖乃康 李玉平 薛三勋 |
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| 作者单位： | 陕西省蚕桑丝绸研究所, |
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| 摘 要： | 通过田间调查 ,对春伐桑园中的桑蓝叶虫的空间分布型、分布图式进行了分析。结果证明 :桑蓝叶虫的空间分布型 80 %符合负二项分布 ,70 %符合Neyman分布 ,不符合Poisson分布 ;空间分布图式为聚集型。序贯抽样方程为 :T1(q) =3q + 4.5 5 41q ,T2 (q) =3q - 4 5 5 41q。
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| 关 键 词： | 桑蓝叶虫 空间分布 序贯抽样 |
| 修稿时间： | 2000-03-28 |
Study on Spatial Distribution Pattern and Sampling Technique of Phyllobrotica armata Baly in the Mulberry Field |
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| Zhang Zhengxin Zhong Yongyu Xiao Naikang Li Yuping Xue Sanxun. Study on Spatial Distribution Pattern and Sampling Technique of Phyllobrotica armata Baly in the Mulberry Field[J]. Acta Sericologica Sinica, 2001, 27(2): 141-144 |
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| Authors: | Zhang Zhengxin Zhong Yongyu Xiao Naikang Li Yuping Xue Sanxun |
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| Abstract: | Analysis on the spatial distribution pattern and distribution diagram of Phyllobrotica armata Baly in spring pruning mulberry field were carried out through field investigation.The results revealed that 80% of the spatial distribution pattern of the Phyllobrotica armata Baly conformed to negative binomial distribution,70% conformed to Neyman distribution and not to Poisson distribution.Spatial distribution diagram is aggregate.The forum for sequential sampling is: T1(q)=3q+4.5541q,T2(q)=3q-4 5541q |
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| Keywords: | Phyllobrotica armata Baly Spatial distribution Sequential sampling |
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