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| 樟树无性系组培苗丘陵山地造林早期生长分析 |
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龚 峥,王洪峰,黎新宇,陈耀辉,余栋华,张 弘,何春梅,徐巧林
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广东省森林病虫害生物防治重点实验室,广东省森林病虫害生物防治重点实验室,广东省东江林场 广东河源,广东省东江林场 广东河源,广东省东江林场 广东河源,广东省森林病虫害生物防治重点实验室,广东省森林病虫害生物防治重点实验室,广东省森林病虫害生物防治重点实验室
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| 摘要: |
| 以樟树(Cinnamomum camphora)无性系组培苗营建试验林,对林木1~5a生生长情况进行调查分析。结果表明：1a生幼林的平均树高和冠幅的分别为1.12m和1.1m；3a生平均树高、平均冠幅和平均胸径分别为3.34m、1.4m和2.94cm；5a生平均树高、平均冠幅和平均胸径依次为5.35m、1.68m和4.8cm,分别比3a生时增加60.01%、20.1%和63.26%。不同林龄的树高有极显著差异（P＜0.01）；5a生和3a生的胸径有显著差异（P＜0.05），但冠幅差异不显著。树高、冠幅和胸径在区间组间差异均不显著，表明群体的生长表现较一致。 |
| 关键词: 樟树 组培苗 造林 生长分析 |
| DOI： |
| 分类号:S722.3 7 |
| 基金项目: |
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| Analyses on Growth of 5-year-old Plantation of Cinnamomum camphora Clone on Hills |
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Gong Zheng,Wang Hongfeng,Li Xinyu,Chen Yaohui,Yu Donghua,Zhang Hong,He Chenmei and Xu Qiaolin
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Guangdong Academy of forestry,Guangdong dongjiang forest farm,Guangdong dongjiang forest farm,Guangdong dongjiang forest farm,Guangdong Academy of forestry,Guangdong Acadmey of Forestry,Guangdong Acadmey of forestry
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| Abstract: |
| The experimental stand was established using tissue culture seedlings of Cinnamomum camphora clone, which the growth was studied. The results showed that the average of tree height was 1.12 m, the average of canopy width was 1.1 m for 1-year old seedlings; the average of tree height was 3.34 m, average of canopy width was 1.4 m and average of DBH was 2.94 cm for 3-year old trees. After 5 years of growth, a series of averages of tree height 5.35 m, canopy width 1.68 m and DBH 4.8 cm was obtained, and these three indexes were increased by 60.01%, 20.1% and 63.26% respectively when compared with that of 3-year old trees. The tree height was very significant differences in different years. There was significant difference in DBH between 5-year and 3-year of growth, but there was not significant difference in growth of canopy width. There were not notable differences in growth among blocks, which showed that the growth of plantation was consistent. |
| Key words: Cinnamomum camphora, tissue culture seedling, afforestation, growth analysis |
