高阿丁枫苗木分级研究  

Study on Seedling Grading of Altingia excelsa

作　　者：曾郁珉 刘金凤 苏俊武 苏智良 郑畹[2] 管松山 邹海生 张勇 

机构地区：[1]云南省林业技术推广总站,云南昆明650204 [2]云南省林业科学院,云南昆明650204 [3]景洪市林业局,云南景洪666100

出　　处：《西部林业科学》2006年第3期43-48,共6页Journal of West China Forestry Science

基　　金：国家林业局2001年度天保工程科技支撑项目"柚木;马尖相思等优良种源生态林营建技术示范(林科发[2001]325号)"部分内容

摘　　要：采用逐步聚类分析方法,对高阿丁枫苗龄为100天的苗木分级标准进行了研究,提出了以苗高和地径作为苗木分级的质量指标,通过计算分析得出了此苗龄下的高阿丁枫苗木分级标准:Ⅰ级苗,苗高≥13.0 cm,地径≥0.26 cm;Ⅱ级苗:13.0 cm>苗高≥10.6 cm,0.26 cm>地径≥0.21 cm;Ⅲ级苗:苗高<10.6 cm,地径<0.21 cm。Taking the method of gradual cluster analysis, the grading standard of 100 days old Altingia excelsa seedlings was studied, the height and basal diameter were proposed as the quality evaluation standard. The grading standard for the seedlings of grade Ⅰ,Ⅱ and Ⅲ were height ≥ 13.0 cm, basal diameter ≥ 0. 26 cm; 13.0 cm 〉 heigh t〉 10. 6 cm, 0.26 cm 〉 basal diameter≥0.21cm; height 〈 10. 6 cm, basal diameter 〈 0.21 cm respectively.

关 键 词：高阿丁枫 苗木分级 逐步聚类 

分 类 号：S793[农业科学—林木遗传育种] S723.1[农业科学—林学]