文献类型：期刊文献

中文题名：杉木容器苗分级标准研究

英文题名：Study on classification standard of Cunninghamia lanceolata container seedling

作者：周新华[1] 黄拯[1] 厉月桥[1] 罗嘉东[1] 肖智勇[2] 桂尚上[3]

第一作者：周新华

机构：[1]中国林业科学研究院亚热带林业实验中心;[2]宜春市林业科学研究所;[3]广州市林业和园林绿化工程建设中心

年份：2017

卷号：37

期号：9

起止页码：68-73

中文期刊名：中南林业科技大学学报

外文期刊名：Journal of Central South University of Forestry & Technology

收录：CSTPCD;;北大核心:【北大核心2014】；CSCD:【CSCD_E2017_2018】；

基金：中央级公益性科研院所基本科研业务费专项资金(CAFYBB2014MB007);林业科技成果国家级推广项目"杉木大径材速生丰产林定向培育技术示范"[2015-1]

语种：中文

中文关键词：杉木;容器苗;苗木分级;因子分析;聚类分析;相关分析

外文关键词：Cunninghamia lanceolata; container seedling; seedling grading; factor analysis; cluster analysis

分类号：S791.27

摘要：为制定杉木容器苗的出圃标准及提供理论支撑,运用相关分析、因子分析和聚类分析方法,对1年生杉木容器苗的质量进行评价和分级标准研究。结果表明:(1)形态因子苗高和地径是影响杉木容器苗质量的决定性指标,生物量因子地上干质量、地下干质量、整株干质量和根冠比则是影响苗木质量的次要指标,营养因子氮磷含量是影响苗木质量的辅助参考指标;(2)以苗高和地径为苗木质量评价指标,通过聚类分析得到杉木容器苗3级分级标准,即:Ⅰ级苗,苗高≥32.99 cm,地径≥4.83 mm;Ⅱ级苗,31.99 cm≥苗高≥29.94 cm,4.83 mm≥地径≥4.01 mm;Ⅲ级苗,苗高<29.94 cm,地径<4.01 mm。
For the development of container seedlings of Chinese fir the nursery standards and provide theoretical support, the use of correlation analysis, factor analysis and cluster analysis method, evaluation and grading of for one year the quality of container seedlings of Chinese fir.; diameter, high seedling,; factor decisive results showed that the shape factor of seedling height and ground diameter affected fir container seedling quality index and hiomass dry weight, root dry mass, whole plant dry weight and root shoot ratio of seedling quality of secondary index, nutritional factors of nitrogen and phosphorus content is affecting seedling quality of auxiliary reference index; seedling height and ground diameter of seedling quality evaluation index, through clustering analysis of Chinese fir seedling container 3 grade classification standard： Grade I seedlings, seedling height is greater than or equal to 32.99 cm, size more than or equal to 4.83 ram, II seedlings 31.99 cm than is more than or equal to 29.94 cm, 4.83 mm is more than or equal to is more than or equal to 4.01 mm III seedlings Miao 〈 29.94 cm, diameter 〈 4.01 mm.