紫椴当年生幼苗生长适宜密度  

Suitable Growth Density of Tilia Amurensis Seedlings

作　　者：吕家 范春楠[1] 任飞燕[1] 李婧 郭梦媛 郭忠玲[1] Lü Jia;FAN Chunnan;REN Feiyan;LI Jing;GUO Mengyuan;GUO Zhongling(Forestry College of Beihua University,Jilin 132013,China;Jilin Province Forestry Survey Design Research Institute,Changchun 130022,China)

机构地区：[1]北华大学林学院,吉林吉林132013 [2]吉林省林业勘察设计研究院,吉林长春130022

出　　处：《北华大学学报（自然科学版）》2021年第5期594-597,共4页Journal of Beihua University（Natural Science）

基　　金：国家重点研发课题(2017YFD0600606).

摘　　要：在苗圃中开展紫椴苗木不同保留密度试验,分析苗高、地径、生物量差异,筛选适宜紫椴苗木生长的密度条件,为紫椴合理育苗提供理论依据与技术支持.结果表明:紫椴幼苗最适密度为90株/m^(2),此时苗高为27.99 cm,地径为73.19 mm,生物量为6.25 g;综合考虑经济成本,确定紫椴最适保留密度为90~110株/m^(2).The experiments of different retention densities on Tilia amurensis seedlings were carried out in a nursery to analyze the differences in seedling height,ground diameter and biomass,and to screen out suitable density conditions for the growth of Tilia amurensis seedlings,which can provide theoretical basis and technical support for the rational seedling cultivation of Tilia amurensis.The results showed that the optimal density of Tilia amurensis seedlings was 90 plants/m^(2),at this time the seedling height was 27.99 cm,the ground diameter was 73.19 mm,and the biomass was 6.25 g.The optimal retention density of Tilia amurensis is 90~110 plants/m^(2) from the perspective of comprehensive economic costs.

关 键 词：紫椴 保留密度 育苗 间苗 生物量 

分 类 号：S723.13[农业科学—林木遗传育种]