不同造林密度对杉木家系生长特性的影响分析  

Analysis of the Effects of Different Planting Densities on the Growth Characteristics of Chinese Fir Families

作　　者：薛平辉 Xue Pinghui(Fujian Datian Taoyuan State-owned Forest Farm,Sanming 366100,Fujian,China)

机构地区：[1]福建省大田桃源国有林场,福建三明366100

出　　处：《林业科技情报》2024年第3期40-43,共4页Forestry Science and Technology Information

摘　　要：本实验旨在研究不同家系和密度对杉木生长的影响。选择福建省大田桃源国有林场莲花山工区作为实验点,选取了官庄1号、官庄2号和官庄3号三个杉木家系,并将其混合作为混合家系进行研究。通过观察2020年和2022年的数据发现,不同家系在不同密度下杉木的生长情况存在一定差异。较低的密度有利于杉木生长,可以使植株获得更大的高度和地径。不同家系对于密度的适应能力可能存在差异,部分家系在较低密度下表现出更好的生长,而其他家系则相反。此外,高径比和冠幅变化也受到家系和密度的影响。he purpose of this experiment was to study the effects of different families and densities on the growth of Chinese fir.Datian State-owned Forest Farm in Datian County,Sanming City,Fujian Province was selected as the experimental site.Three Chinese fir families,Guanzhuang No.1,Guanzhuang No.2 and Guanzhuang No.3,were selected and mixed as mixed families for research.By observing the data of 2020 and 2022,it is found that there are some differences in the growth of Chinese fir under different densities of different families.Lower density is beneficial to the growth of Chinese fir,which can make the plant obtain greater height and ground diameter.There may be differences in the adaptability of different families to density.Some families showed better growth at lower density,while other families showed the opposite.In addition,the changes of height-diameter ratio and crown width were also affected by family and density.

关 键 词：杉木生长 家系选择 造林密度 高度 地径 高径比 冠幅 适应能力 

分 类 号：S791.254[农业科学—林木遗传育种]