红椿人工林密度试验研究

An Experimental Study of the Density of Toona ciliata Plantations

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1 600株.hm-2为宜。

Toona ciliata Roem was a precious timber species with superior quality and fast growing charac- teristics, and it was large-scalely planted in Sichuan. The single-factor experiment was designed to investi- gate the growth effects of the primary density and the intermediate cutting in 10 years old forest. The re- suits 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 cilia- ta was suitable.