| 云南红豆容器苗的苗木分级 |
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| 引用本文： | 史富强,周凤林.云南红豆容器苗的苗木分级[J].浙江林学院学报,2006,23(6):651-655. |
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| 作者姓名： | 史富强 周凤林 |
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| 作者单位： | 云南省林业科学院,热带林业研究所,云南,景洪,666102 |
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| 摘 要： | 采用逐步聚类分析方法,对云南红豆Ormosia yunnanensis容器苗苗木分级标准进行了初步探讨。以苗高和地径作为分级的品质指标,提出了以下分级标准:Ⅰ级苗为苗高>15.4cm,地径>0.29 cm,Ⅱ级苗苗高为11.4~15.4 cm,地径0.24~0.29 cm,Ⅲ级苗为苗高<11.4 cm,地径<0.24 cm。表5参5
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| 关 键 词： | 森林培育学 云南红豆 容器苗 苗木分级 逐步聚类 |
| 文章编号： | 1000-5692（2006）06-0651-05 |
| 收稿时间： | 2005-12-21 |
| 修稿时间： | 2006-03-21 |
Container seedling classification of Ormosia yunnanensis |
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| SHI Fu-qiang,ZHOU Feng-lin.Container seedling classification of Ormosia yunnanensis[J].Journal of Zhejiang Forestry College,2006,23(6):651-655. |
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| Authors: | SHI Fu-qiang ZHOU Feng-lin |
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| Institution: | The Tropical Forestry Institute, Yunnan Academy of Forestry, Jinghong 666102, Yunnan, China |
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| Abstract: | The standard of container seedling of Ormosia yunnanensis is studied by using the methods of gradual clustering analysis.Seedling height and basal diameter are proposed as the main indexes of quality for seedling classification of the species.The container seedlings are classified into three grades.First grade container seedlings are with the height greater than 15.4 cm,the basal diameter greater than 0.29 cm.Those,the height between 11.4 cm and 15.4 cm,the basal diameter between 0.24 cm and 0.29 cm are classified as second grade.Those,with height lower than 11.4 cm and basal diameter lower than 0.24 cm are sorted into third grade. |
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| Keywords: | silviculture Ormosia yunnanensis container seedling seedling classification gradual clustering analysis |
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