Analysis of the Effects of Different Planting Densities on the Growth Characteristics of Chinese Fir Families
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 den-sity,while other families showed the opposite.In addition,the changes of height-diameter ratio and crown width were also affected by family and density.
Chinese fir growthfamily selectionafforestation densityheightground diameterheight diameter ratiocrown widthadaptability
NETL
NSTL
万方数据
