| 油菜田看麦娘空间分布及取样研究 |
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| 引用本文： | 汪万宝,魏俊章,叶明珠.油菜田看麦娘空间分布及取样研究[J].安徽农业大学学报,1995(4). |
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| 作者姓名： | 汪万宝 魏俊章 叶明珠 |
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| 作者单位： | 安徽庐江县植保站 |
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| 摘 要： | 研究了油菜田看麦娘的空间格局及取样技术。结果表明其分布为聚集分布，且属于一般的负二项分布。其理论抽样模型为：ｎ＝１．８＋６９．２／ｘ，田间抽样以五点取样和棋盘式取样为佳，抽样数量以５０抽样单位（０．１１ｍ２）为宜，抽样精度可达９６．５％。
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| 关 键 词： | 看麦娘，空间格局，看样技术 |
Studies on the Spatial Distribution Pattern and Sampling Technique of Alopecurus aegualis |
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| Wang Wanbao,Wei Junzhang and Ye Mingzhu.Studies on the Spatial Distribution Pattern and Sampling Technique of Alopecurus aegualis[J].Journal of Anhui Agricultural University,1995(4). |
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| Authors: | Wang Wanbao Wei Junzhang and Ye Mingzhu |
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| Abstract: | The spatial distribution and sampling technique of Alopecurus aegualis were studied inrape field.The results of field investigation and statistical analysis indicated that the distribu-tion of Alopecurus aegualis assumed aggregative pattern,which belongs to negative binomialdistribution,the sampling model was n=1.8+59.2x,five points and chess board sam-pling were the best in field.The adequate sampling size was 50 sampling unit(0.11m2),sampling precision was 96.5%. |
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| Keywords: | AloPecurus aegualis Spatial distribution pattern Sampling technique |
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