栽植密度对黄檗苗期生物量的影响  

The effect of planting density on seedling biomass of Phellodendron amurense

作　　者：任宣百 包颖 付晓霞[2] 陆志民[2] 王芳[2] 

机构地区：[1]吉林省林业技术推广站,吉林长春130022 [2]吉林省林业科学研究院,吉林长春130033

出　　处：《吉林林业科技》2016年第5期19-26,共8页Journal of Jilin Forestry Science and Technology

基　　金：吉林省重点科技攻关项目(20130206017YY)

摘　　要：以黄檗3 a生幼树为材料,对不同栽植密度的生物量进行研究,结果表明:栽植当年和翌年秋季的成活率与保存率分别为92%和91%。不同株距树高、地径生长量均达到极显著差异(P<0.01),树高、地径生长量从大到小顺序依次为株距0.5 m>1 m>0.3 m>1.5 m;而不同行距对树高、地径生长量均无影响。采用一元生物量模型计算生物量,总生物量最大的种植密度为33 300株·hm^(-2)(株行距0.3 m×1.0 m),可产生干物质3 930.06 kg·hm^(-2);最小的为3 300株·hm^(-2)(株行距1.5 m×2.0 m),干物质仅为344.08 kg·hm^(-2)。The biomass of different planting density was researched by taking 3 years sapling of Phellodendron amurense as material. The result showed that the survival rate and preserving rate of planting that year and the following year was 92% and 91 % , respectively. Different row spacing tree height and diameter growth volume reached a significant difference （P 〈 0. 01） . The order of tree height and diameter growth in descending was row spacing 0. 5m〉 1m〉0. 3m〉 1.5 m. The different line spacing had no effect on tree height and diameter growth. The biomass was calculated by using unary bio-mass model. The maximum planting density of total biomass was 33 300 per hectare （ spacing in the rows and spacing between rows 0. 3 m× 1.0 m） which can produce 3 930. 06 kg per hectare dry matter. The minimum was 3 300 per hectare （spacing in the rows and spacing between rows 1.5 m×2.0m） which can produce 344.08 kg per hectare.

关 键 词：栽植密度 黄檗 苗期 生物量 

分 类 号：S792.31[农业科学—林木遗传育种]