| 油松毛虫卵（块）和蛹种群简单随机抽样最适样方大小的确定方法 |
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| 引用本文： | 张连翔,于军.油松毛虫卵（块）和蛹种群简单随机抽样最适样方大小的确定方法[J].内蒙古林学院学报,1996(4):57-62. |
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| 作者姓名： | 张连翔 于军 |
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| 作者单位： | [1]辽宁省凌源汽车发动机制造厂 [2]辽宁省朝阳市林业局 |
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| 摘 要： | 在种群空间格局的研究的基础上，采用７种方法对同松毛虫卵（块）和蛹种群简单随机抽样技术中最适样方大小的确定问题进行了研究，结果表明，无论是卵（块）抑或蛹种群，都是在ｕ＝１时抽样误差最低，即以单株油松为样方时最为适宜，此外，文中还列出了考虑抽样花费时确定最适样方式大小的各种方法，并讨论了有关问题。
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| 关 键 词： | 油松毛虫 卵 蛹种群 空间格局 |
THE METHOD TO DECIDE THE BEST SAMPL UNIT OF RANDOM SAMPLING OF GROUP OF EGG AND PUPA OF PINE CATERPTLLAR(DENDROLUMUS TABULAEFORMIS) |
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| Authors: | Zhang Lianxiang Yu Jun |
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| Abstract: | Based on the spatial distribution patterns of the groups of egg and pupa ofpine caterpillar(D.tabulaefOrmis)7 kinds of methods are used to analyse the best sample u-nit for raitdom sampling.It is turned out that the sampling error is smaller when the sampleunit equals one(u=1).The questions and methods of deciding the sample unit as the expen-dittire of investigatlon heing considered are also discussed in this paper. |
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| Keywords: | Dendrolimus tabulaeformis egg and pupa group spatial distribution pat-tern sample unit sampling error |
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