红椿人工林密度试验研究

An Experimental Study of the Density of Toona ciliata Plantations

摘要: 红椿是速生的珍贵用材树种,在四川已规模化栽培。采用单因素试验设计,研究红椿人工造林初植密度和10 a生林分间伐对林分生长影响。结果表明:在红椿造林后3 a内,初植密度对林分生长影响不显著;10 a生红椿人工林间伐后保留密度以1600株·hm^-2为宜。

Abstract: Toona ciliata Roem was a precious timber species with superior quality and fast growing characteristics, and it was large-scalely planted in Sichuan. The single-factor experiment was designed to investigate the growth effects of the primary density and the intermediate cutting in 10 years old forest. The results showed that the effect of the primary density was not significant in three years after afforestation, and a reserve density of 1 600 trees per hectare after intermediate cutting in 10 years old forest of Toona ciliata was suitable.