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肖舒, 陈应彪, 王俊林
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广东省潮州市饶平县林业技术推广站
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摘要: |
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4 种不同种植密度的卷荚相思 Acacia cincinnata 在种植 4 a、12 a 后的观测结果显示：卷荚相思
不同种植密度对林木高生长无显著影响，但对其胸径、生长和保存率有显著影响；密度对林木材积生长具
有一定影响，它与林分单株材积呈负相关，其关系式可用 V = a x -b 来表示。4 a 生林分材积与密度呈正相
关，在密度 1.5 m×3 m 时达到最高。12 a 生林分因显著的林分效应与保存率变化，低密度（3 m×3 m）林
分材积达到最高，最低林分密度与最高林分密度保存率相差 15.54 个百分点；试验证明卷荚相思在饶平培
育小径材可考虑选用 1.5 m×3 m 株行距，而培育中、大径材选用 3 m×3 m 株行距更为适宜。
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关键词:
饶平；卷荚相思；速生树种；种植密度；生长表现
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DOI：
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分类号：
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基金项目： |
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Growth Performance of Acacia cincinnata with different Planting Density in Raoping |
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xiaoshu, chenyingbiao, wangjunlin
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Forestry Institute of Raoping,Raoping
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Abstract: |
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The observation results of 4 different planting densities of Acacia cincinnata showed that: planting
densities of Acacia cincinnata had no significant influence on the growth of tree height, but had significant influence
on its’ DBH, growth and survival rate. The planting density had a certain influence on the growth of timber volume,
it was negatively correlated to the individual volume of stand and the relationship could be expressed by V = a x -b
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There was a positive correlation between stand density and stand volume for 4-year plantations, reaching the highest
at the density 1.5 m×3 m. The stand volume reached the highest at the density 3 m×3 m for 12-year plantations
owing to the distinct stand effect and changes in conservation rate, and generate a 15.54% difference between the
lowest and highest stand density. The research proved that the 1.5 m×3 m row spacing could be considered for
cultivation of small-diameter timber, while 3 m×3 m row spacing was more suitable for medium diameter and largediameter timber in Raoping.
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Key words:
Raoping; Acacia cincinnata ; fast growing tree species; planting density; growth performance
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