生物质能源树种——光皮树播种苗分级标准研究  

Study on the Classification Standard of Biomass Energy Tree Species:Swida wilsoniana Seedlings

作　　者：郑冬华 翁汉林 黄雪龙 唐丽芙 罗慧文 ZHENG Dong-hua(Forestry Bureau of Xingan County,Xingan,Jiangxi331300)

机构地区：[1]新干县林业局,江西新干331300 [2]青原区林业局,江西吉安343000 [3]峡江县林业局,江西峡江331409 [4]赣州市林业技术推广站,江西赣州341000

出　　处：《园艺与种苗》2024年第12期72-73,99,共3页Horticulture & Seed

摘　　要：[目的]初步研究生物质能源树种——光皮树1年生播种苗的分级标准。[方法]采用主成分分析和平均值±标准差苗木分级法。[结果]以苗高和地径作为分级主要指标,光皮树播种苗的3级分级标准为:I级苗,苗高≥80 cm,地径≥0.8 cm;Ⅱ级苗,50 cm≤苗高<80 cm,0.5 cm≤地径<0.8 cm;Ⅲ级苗,苗高<50 cm,地径<0.5 cm。[结论]该研究结果为光皮树育苗企业提供了参考。[Objective]To preliminarily study the classification standard of 1-year-old seedlings of the biomass energy tree species,Swida wilsoniana.[Method]Principal component analysis and mean±standard deviation seedling grading methods were used.[Result]Taking the seedling height and ground diameter as the main index of classification,the three-level classification standard of the seedings of S.wilsoniana was as follows:grade Ⅰ seedlings,seedling height≥80 cm,ground diameter≥0.8 cm;grade Ⅱ seedlings,50 cm≤seedling height<80 cm,0.5 cm≤ground diameter<0.8 cm;grade Ⅲ seedlings,seedling height<50 cm,ground diameter<0.5 cm.[Conclusion]The study results provide references for the seedling enterprises of S.wilsoniana.

关 键 词：光皮树 主成分分析 苗木分级 

分 类 号：S723.4[农业科学—林木遗传育种]