| 栽植密度对黄檗苗期生物量的影响 |
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| 引用本文： | 任宣百,包颖,付晓霞,陆志民,王芳.栽植密度对黄檗苗期生物量的影响[J].吉林林业科技,2016(5):19-26. |
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| 作者姓名： | 任宣百 包颖 付晓霞 陆志民 王芳 |
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| 作者单位： | 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 |
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| 基金项目： | 吉林省重点科技攻关项目(20130206017YY) |
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| 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(P0.01),树高、地径生长量从大到小顺序依次为株距0.5 m1 m0.3 m1.5 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)。
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| 关 键 词： | 栽植密度 黄檗 苗期 生物量 |
The effect of planting density on seedling biomass of Phellodendron amurense |
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| Abstract: | 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 0.5 m>1 m>0.3 m>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 be-tween 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 ×2.0 m) which can produce 344.08 kg per hectare. |
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| Keywords: | planting density Phellodendron amurense seedling stage biomass |
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