| 蜀柏毒蛾种群抽样技术的研究 |
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| 引用本文： | 隆孝雄 左谦. 蜀柏毒蛾种群抽样技术的研究[J]. 四川林业科技, 1992, 13(4): 33-37 |
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| 作者姓名： | 隆孝雄 左谦 |
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| 作者单位： | 四川省林科院(隆孝雄)，德阳市林业局(左谦) |
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| 摘 要： | 根据蜀柏毒蛾的空间格局参数及株内分布规律,参照Morris(1960)的标准和Iwao(1971)的模型,对蜀柏毒蛾种群样本单元进行选择,确定以株为样本单元,并选择平行线式,Z字形式、棋盘式取样方法,列出了允许误差D=0.05,0.10,0.20,0.50时和不同虫口密度下的理论抽样数表。依照Kuno(1969)模型建立了序贯抽样表。
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| 关 键 词： | 蜀柏毒蛾 种群 分布 |
Research into Sampling Technipues of Parocneria orienta |
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| Long Xiaoxlong Zuo Qian. Research into Sampling Technipues of Parocneria orienta[J]. Journal of Sichuan Forestry Science and Technology, 1992, 13(4): 33-37 |
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| Authors: | Long Xiaoxlong Zuo Qian |
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| Affiliation: | Long Xiaoxlong Zuo Qian(Sichuan Reaearch Institute of Forestry) (Deyang Municipal Forestry Bureau) |
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| Abstract: | According to the parameters of spatial patterns of Parocneria orienta and its distribution law in a tree, and in the light of the standard of Morris (1960) adn the model of Iwao (1971), selection is made on sample units of Parocneria orienta populations and an individual is determined as a sample unit. Parallel-line, Z and checkered sampling methods are adopted. And theoretical sampling number tables are listed at the time of permissible errors D=0. 05, 0.10,0. 20 and 0. 50 and at differ ent population densities. In addition, sequential sampling tables are established in the light of the model of Kuno (1969). |
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| Keywords: | Parociieria orienta sample unit theoretical sampling number sequential sampling |
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