| 雅安市主要造林树种苗木质量的分级研究 |
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| 引用本文： | 涂利华,胡庭兴,冯德宾,万涛,李仁洪,徐嘉.雅安市主要造林树种苗木质量的分级研究[J].四川林业科技,2007,28(3):50-53. |
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| 作者姓名： | 涂利华 胡庭兴 冯德宾 万涛 李仁洪 徐嘉 |
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| 作者单位： | 1. 四川农业大学林学园艺学院,四川,雅安,625014
2. 四川省林木种苗站,四川,成都,610000 |
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| 基金项目： | 四川省林业先导计划课题 |
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| 摘 要： | 对2006年雅安各县苗圃主要造林树种苗木进行调查,以地径(D)和苗高(H)作为质量指标,采用逐步聚类分析对苗木质量进行分级,结合生产实际探讨了雅安市主要造林树种苗木标准。其中有些树种的苗木分级标准为首次研究。标准中各指标均大于现行国家标准,能较好地反映实际生产水平,为育苗生产和制定地方标准提供了参考。
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| 关 键 词： | 苗木质量 分级 逐步聚类 主要造林树种 雅安 |
| 文章编号： | 1003-5508（2007）03-0050-04 |
| 修稿时间： | 2006-09-25 |
A Study of Seedling Grading of Main Afforesting Tree Species in Ya'an City |
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| TU Li-hua,HU Ting-xing,FENG De-bin,WAN Tao,LI Ren-hong,XU Jia.A Study of Seedling Grading of Main Afforesting Tree Species in Ya''''an City[J].Journal of Sichuan Forestry Science and Technology,2007,28(3):50-53. |
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| Authors: | TU Li-hua HU Ting-xing FENG De-bin WAN Tao LI Ren-hong XU Jia |
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| Abstract: | By means of the investigation of main afforesting tree species in Ya'an in 2006,the seedling quality has been divided into several grades based on ground diameter(D)and nursery height(H)by u- sing the methods of gradual cluster analysis,and the seedling standard of main afforesting tree species in Ya'an are approached in combination with the productive reality;Some tree species' seedling standards are researched for the first time;Various index values are larger than those of the current national stand- ards;The index can reflect the real productive level;The result of research can provide reference for seedling cultivating and formulating local standards. |
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| Keywords: | Seedling quality Grading Gradual cluster analysis Main afforesting tree species Ya'an |
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