| 摘要: |
| 选取黑木相思 Acacia melanoxylon 无性系 SR3、SR14、SR17 、SR20、SR21 为研究对象，对
其早期生长进行分析。研究结果表明，在树高生长方面，5 个黑木相思无性系在封开以 SR17 的树高生
长最高，平均高度超过 3.00 m；在怀集以 SR20、SR21 的树高生长最大，平均高度分别为 1.36 m、1.15
m。在地径生长方面，在封开以 SR17 的地径生长最高，平均地径达 6.26 cm；怀集的黑木相思地径主要
分布于 1.15~1.82 cm。封开地区以 SR17 的公顷蓄积量明显高于其它 4 个黑木相思无性系；而在怀集地区
SR14、SR17 的公顷蓄积量要低于其它 3 个黑木相思无性系。综合各项指标，黑木相思无性系 SR17 更适
宜在封开生长，SR20、SR21 更适合在怀集生长。 |
| 关键词: 黑木相思 无性系 生长监测 |
| DOI： |
| 分类号: |
| 基金项目: |
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| Early Growth Performance of Five Acacia melanoxylon Clones in Zhaoqing Area |
|
Chen Shui-Lian, CHEN An, TAN Ruikun, MO Weiqiang, ZHAO Miaofei, LIN Ning
|
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Forest Research Institution of Zhaoqing
|
| Abstract: |
| Exploring the early growth performance of different Acacia melanoxylon clones in the Zhaoqing
area is of great signi?cance to promote the restoration of low-ef?ciency forests and optimizing the structure of
regional tree species. In this study, A.melanoxylon clones SR3, SR14, SR17, SR20, and SR21 were selected as
the research objects to analyze their early growth status. The results showed that in terms of tree height growth.
The SR17 had the highest tree height growth among the ?ve A. melanoxylon clones, with an average height of
more than 3.00 m. In Huaiji, SR20 and SR21 had the highest tree height growth, with an average height of 1.36
m and 1.15 m, respectively. In terms of ground diameter growth, SR17 had the highest ground diameter growth in
sealing, with an average ground diameter of 6.26 cm. the ground diameter of A. melanoxylon in Huaiji is mainly
distributed in 1.15-1.82 cm. In terms of hectare stock volume, the hectare stock volume of SR17 in the Fengkai
area was signi?cantly higher than that of the other four A.melanoxylon clones. The stock volume of SR14 and
SR17 were lower than the other three clones in the Huaiji area. According to the comprehensive indexes, the clone
SR17 of A. melanoxylon was more suitable for growth in Fengkai. SR20 and SR21 were more suitable for growth
in Huaiji. |
| Key words: Acacia melanoxylon cloned line growth monitoring |
