顶坛花椒苗木分级标准的初步研究  

Preliminarily Study on Seedlings Classification Standard of Zanthxyhum planisnum var. dingtanenesis.

作　　者：丁波[1] 王德炉[1] 刘济明[1] 秦洪文[1] 

机构地区：[1]贵州大学林学院,贵州贵阳550025

出　　处：《安徽农业科学》2007年第25期7831-7834,共4页Journal of Anhui Agricultural Sciences

基　　金：国家"十一五"国家科技支撑计划课题(2006BAC01A09-2)资助

摘　　要：运用主成分分析法、分层抽样、逐步聚类分析法,对顶坛花椒1年生移植苗和留床苗的分级标准进行初步研究。结果表明,地径(D)和苗高(H)对顶坛花椒苗木质量有很好的表达,可以作为苗木分级的质量指标。进而,按照3个等级,对顶坛花椒1年生移植苗和留床苗提出了相应的分级标准,并将分类结果与实际情况进行比较。结果发现该分级标准与苗木实际情况相符,可为生产提供参考。　The classification standard of 1-year-old transplant and non transplant seedlings of Zanthxyhum planisnum var.dingtanenesis was preliminarily studied by the principal component analysis,the sampling stratification 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 Zanthxyhum planisnum var.dingtanenesis.Furthermore,according to three grades,the relative classification criteria of 1-year-old transplant and non transplant seedlings of Zanthxyhum planisnum var.dingtanenesis was put forward,and the classification results and the practical instance were compared.The results of the classification criteria were coincided with the practical growth of seedlings,and they were expected to provide reference for production.

关 键 词：顶坛花椒 苗木分级 逐步聚类 

分 类 号：S753.1[农业科学—森林经理学]