| 两面针苗木分级标准的研究 |
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| 引用本文： | 蒋水元,李虹,黄夕洋,孙世荣. 两面针苗木分级标准的研究[J]. 福建林业科技, 2010, 37(4). DOI: 10.3969/j.issn.1002-7351.2010.04.019 |
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| 作者姓名： | 蒋水元 李虹 黄夕洋 孙世荣 |
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| 基金项目： | 广西科学院科技创新项目 |
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| 摘 要： | 运用随机抽样、主成分分析和逐步聚类分析等方法,对两面针当年生苗和1年生苗的分级标准进行调查研究。结果表明,地径和苗高对两面针苗木质量有很好的表达,可以作为苗木分级的质量指标;按照3个等级,提出了两面针当年生苗和1年生苗相应的分级标准;经实测该分级标准与苗木实际情况相符,可为生产提供参考。
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| 关 键 词： | 两面针 苗木分级 主成分分析 聚类分析 |
Study on Seedlings Classification Standard of Zanthoxylum nitidum (Roxb.) DC |
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| JIANG Shui-yuan,LI Hong,HUANG Xi-yang,SUN Shi-rong. Study on Seedlings Classification Standard of Zanthoxylum nitidum (Roxb.) DC[J]. Journal of Fujian Forestry Science and Technology, 2010, 37(4). DOI: 10.3969/j.issn.1002-7351.2010.04.019 |
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| Authors: | JIANG Shui-yuan LI Hong HUANG Xi-yang SUN Shi-rong |
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| Abstract: | The classification standard of current-year-old and 1-year-old seedlings of Zanthoxylum nitidum(Roxb.) DC was studied by random sampling,main factor analysis and the clustering gradually analysis.The results showed that the ground diameter(D) and the nursery height(H) could be regarded as the indexes of the seedlings quality grading of Zanthoxylum nitidum(Roxb.) DC. According to three grades,the relative classification criteria of current-year-old and 1-year-old seedlings of Zanthoxylum nitidum(Roxb.) DC was put forward.The results of the classification criteria were coincided with the practical growth of seedlings,and they were expected to provide reference for production. |
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| Keywords: | Zanthoxylum nitidum(Roxb.) DC seedling classification main factor analysis gradual cluster analysis |
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