| 烟田杂草香附子空间格局及抽样技术研究 |
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| 引用本文： | 孙光军,刘呈义,王济湘,廖海民,杜予州.烟田杂草香附子空间格局及抽样技术研究[J].中国烟草学报,1998(2). |
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| 作者姓名： | 孙光军 刘呈义 王济湘 廖海民 杜予州 |
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| 作者单位： | 贵州省铜仁烟草科学研究所!铜仁，554300，贵州大学农学院植保系 |
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| 基金项目： | 铜仁地区科技基金!《铜仁地区烟田杂草种类、分布及化学除草试验》 |
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| 摘 要： | 本研究对杂草香附子（CyperusrotundusL．）在烟田的分布调查资料进行空间格局测定，结果表明：杂草香附子在烟田呈明显的聚集分布格局。利用有草作方频率和空间格局特征参数，对烟田杂草香附子种群密度进行估测，并建立相应的理论抽样数模型和序贯抽样模型。利用田间杂草实地分布图进行抽样比较，得出采用分行式抽样方法最佳。
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| 关 键 词： | 香附子 杂草 烟田 空间格局 抽样技术 |
Studies on Spatial Distribution Pattern and Sampling techniques of the Weed Cyperus rotundus L. in the Tobacco Field |
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| Sun Guangjun, Liu Chengyi, Wang Jixiang, Liao Haimin, Du Yuzhou.Studies on Spatial Distribution Pattern and Sampling techniques of the Weed Cyperus rotundus L. in the Tobacco Field[J].Acta Tabacaria Sinica,1998(2). |
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| Authors: | Sun Guangjun Liu Chengyi Wang Jixiang Liao Haimin Du Yuzhou |
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| Abstract: | According to the investigative information of the weed Cyperus rotundus L, itsspatial distribution pattern in the tobacco fields is tested. The results are as follows:The distribution pattern of the weed is aggregative obviously. Otherwise, the frequencyof occurrence and the distribution parameters are used to estimate the population densities of the weed and establish the models of optimization sampling and sequential sampling in this paper. Based on the reality distribution map of the weed in the tobaccofields, the four sampling methods are compared. The sampling method of the separateranges is the best. |
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| Keywords: | Cypreus rotundus Weed Tobacco field Spatial distribution pattern Sampling technique |
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