四川林业科技

2007, (03) 50-53

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雅安市主要造林树种苗木质量的分级研究
A Study of Seedling Grading of Main Afforesting Tree Species in Ya'an City

涂利华,胡庭兴,冯德宾,万涛,李仁洪,徐嘉
TU Li-hua~1 HU Ting-xing~1 FENG De-bin~2 WAN Tao~2 LI Ren-hong~2 XU Jia~2 (1.College d Forestry and Horticulture,Sichuan Agricultural University,Ya'an,Sichuan 625014, 2.The Forest-tree Seed and Seedling Station of Sichuan Province,Chengdu

摘要(Abstract):

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。
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.

关键词(KeyWords): 苗木质量;分级;逐步聚类;主要造林树种;雅安
Seedling quality;Grading;Gradual cluster analysis;Main afforesting tree species;Ya'an

Abstract:

Keywords:

基金项目(Foundation): 四川省林业先导计划课题“四川省林木种苗标准制定”(2004-2005)资助。

作者(Author): 涂利华,胡庭兴,冯德宾,万涛,李仁洪,徐嘉
TU Li-hua~1 HU Ting-xing~1 FENG De-bin~2 WAN Tao~2 LI Ren-hong~2 XU Jia~2 (1.College d Forestry and Horticulture,Sichuan Agricultural University,Ya'an,Sichuan 625014, 2.The Forest-tree Seed and Seedling Station of Sichuan Province,Chengdu

DOI: 10.16779/j.cnki.1003-5508.2007.03.010

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