优良生态树种杂交鹅掌楸不同栽植密度的研究

在合肥市大杨镇试验地,研究4种不同栽植密度对杂交鹅掌楸林分生长量的影响.结果表明,不同栽植密度对林分胸径和树高生长具有一定的影响作用.根据差异显著性检验,不同栽植密度下杂交鹅掌楸胸径和树高连年生长量的差异不显著,而其胸径和树高平均生长量表现出显著差异.杂交马褂木的造林密度以2 m×2 m或3 m×3 m为宜.

Effects of initial density of hybrid Liriodendron on the growth

The growth of hybrid Liriodendron under the four different initial densities was conducted at Dayang of suburban Hefei.The result showed that the initial density affected the growth of DBH and height to some extent.Based on the results of comparative analyses and significant test,no significant differences were found for the annual increments of DBH and height among the different densities.However,the mean increments of DBH and height were significantly different among the initial densities.The result indic...