| 引用本文： |
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覃永华,唐继新,秦武明,黄永,刘淑英,赵绍文.三个相思树种的造林对比试验[J].广西科学,2008,15(1):87-91. [点击复制]
- QIN Yong-hua,TANG Ji-xin,QIN Wu-ming,HUANG Yong,LIU Shu-ying,ZHAO Shao-wen.The Comparative Experiment on Afforestation of Three Acacia Species[J].Guangxi Sciences,2008,15(1):87-91. [点击复制]
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| 摘要: |
| 在广西国有高峰林场界牌分场科技示范园内进行厚荚相思(Acacia.crassicarpa)、马占相思(A.mangium)和杂交相思(A.mangium×A.auriculiformis)的造林试验。试验按上坡、中坡、下坡设置3个随机区组,每个区组内有3个小区,每小区用一个树种造林,面积为400m2。结果表明:3个树种的6年生平均树高分别为13.4m、12.4m和11.0m,前者比后两者分别高7.5%和17.9%;林分平均胸径分别为13.7cm、12.8cm和11.2cm,前者比后两者分别大6.6%和18.2%。3个相思树种的树高和胸径生长特点都是早期生长迅速,速生期在1~3a间,树高年生长量为3.0~3.6m,胸径年生长量为3.8~4.7cm。活立木蓄积分别达122.3m3/hm2、100.7m3/hm2和70.7m3/hm2,前者为后两者的121.5%和173.0%;纯收入分别为10620.0元/公顷、7695.0元/公顷和3645.0元/公顷,前者为后两者的1.38倍和2.91倍。短周期工业用材相思树类造林树种选择厚荚相思为优,其次为马占相思。 |
| 关键词: 相思树 造林试验 生长量 经济效益 |
| DOI： |
| 投稿时间：2007-09-14修订日期：2007-11-26 |
| 基金项目:广西"十五"林业科学研究项目(2002-59);广西高峰林业相思树短周期工业用材基地高产林试验与推广科研基金项目(X032069)资助 |
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| The Comparative Experiment on Afforestation of Three Acacia Species |
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QIN Yong-hua1, TANG Ji-xin1, QIN Wu-ming1, HUANG Yong2, LIU Shu-ying2, ZHAO Shao-wen1
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| (1.Forestry College, Guangxi University, Nanning, Guangxi, 530005, China;2.Guangxi Gaofeng Forest Farm, Nanning, Guangxi, 530001, China) |
| Abstract: |
| Experiments on afforestation of Acacia crassicarpa, A.mangium and A.mangium×A.auriculiformis were carried out in the Forestry Science and Technology Demonstrate Farm of Guangxi.Three random block were set respectively on the upper slopes, middle slopes and lower slopes on the trial.Each block includs three plot of 400m2 planted with one tree species.The results showed that the average tree height were 13.4m, 12.4m and 11.0m respectively, the former was 7.5 and 17.9 percent higher than that of the two latter.The average DBH were 13.7cm, 12.8cm and 11.2cm respectively, the former was 6.6 and 18.2 percent larger than that of the two latter.Both the tree height and DBH of the three Acacia species had a characteristic of rapid early growth.The rapid growth stage was between 1 to 3 year.The annual tree height were 3.0~3.6m and the annual DBH were 3.8~4.7cm.The volume accumulation were 122.3m3/hm2, 100.7 m3/hm2 and 70.7 m3/hm2 respectively, the former was 121.5 and 173.0 percent of the two latter.The pure income were 10620.0 yuan/hm2, 7695.0 yuan/hm2 and 3645.0 yuan/hm2 respectively, and the former was 1.38 and 2.91 times of the two latter.Comprehensive analysis of the growth and static economic benefits, A.crassicarpa is the best tree species for industrial timber plantation in short-term rotation, and then A.mangium. |
| Key words: Acacia afforestation experiment growth economic benefits |
