南方红豆杉在杉木人工林林下套种生长情况

The Study on Growth of Taxus chinensis var.mairei Interplanted Under Cunninghamia lanceolata Plantation

2015年在福建省宁化国有林场,采用1年生南方红豆杉营养袋苗开展杉木人工林林下不同坡位、坡向、杉木保留株数套种南方红豆杉试验,对套种3 a后的南方红豆杉生长情况进行调查。结果表明:经多次间伐后的杉木人工林林下套种红豆杉,红豆杉幼林生长良好,其中以阴坡、下坡地块或小班生长较好,不同坡位、坡向间树高生长差异显著,树高生长阴坡比阳坡增加17.1%,下坡比上坡增加了16.6%~19.4%;30年生杉木保留密度在900株·hm-2内比较适合南方红豆杉生长。说明杉木人工林林下套种是可行的。

In 2015,in Ninghua State-owned Forest Form Fujian Province,One-year-old nutrient bag seedlings of Taxus chinensis var.mairei were used to carry out the experiment of interplanting Taxus chinensis var.mairei in different slope position,slope direction and number of Cunninghamia lanceolata reserved trees.The growth of Taxus chinensis var.mairei after interplanting for 3 years was investigated,the results showed that Taxus chinensis var.mairei plantation was interplanted under Cunninghamia lanceolata artificial forest,it grew well;among them,the slope is overcast.The lower slope block or small class grows better.There were significant differences in tree height growth between different slope positions and directions.Tree height growth increased by 17.1% on shady slope and 16.6%~19.4% on downhill than on sunny slope.The retention density of 30-year-old Cunninghamia lanceolata was more suitable in 900 plants per heectare and it was good for Taxus chinensis var.mairei growth.