棉蚜空间格局参数特征及其应用 |
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引用本文: | 潘永刚,张汝霖,于锁英,刘马俊,白秀娥. 棉蚜空间格局参数特征及其应用[J]. 山西农业科学, 2001, 29(4): 62-65 |
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作者姓名: | 潘永刚 张汝霖 于锁英 刘马俊 白秀娥 |
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作者单位: | 1. 汾阳市病虫测报站,山西,汾阳,032200 2. 吕梁行署农牧局,山西,离石,033000 |
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摘 要: | 应用聚集度指数测定了棉蚜的空间格局 ,分析了平均密度 x与 m ,S2 ,K值 , L ,λ的关系。结果表明 ,棉蚜的空间格局为具有公共Kc值的负二项分布。并对聚集原因进行了讨论
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关 键 词: | 棉蚜 空间格局 参数特征 |
文章编号: | 1002-2481(2001)04-0062-04 |
修稿时间: | 2001-03-14 |
The Characteristics and Application of the Spatical Parameters of Cotton Aphid |
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Abstract: | The spatial distribution pattern of cotton aphid in cotton field had been analyzed with aggregation indices.The relation between mean density and ,S 2,K value ,λ were also analyzed.The results showed that the spatial distribution was the negative binomial with common value k c.And the reasons of aggregation were probed. |
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Keywords: | Cotton aphid Spatial distribution Parameter Pattern |
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