| 引用本文： |
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梁伟克,何斌.肉桂幼林生物量与营养元素分布研究[J].广西科学院学报,1999,(4):165-170. [点击复制]
- Liang Weike,He Bin.Biomass Accumulation and Nutrient Element Distribution in Young Growth of Cinnamomum cassia[J].Journal of Guangxi Academy of Sciences,1999,(4):165-170. [点击复制]
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| 摘要: |
| 在广西高峰林场界牌分场对林龄1~4年的肉桂幼林进行生物量及营养元素测定,研究肉桂幼林的生物量和营养元素(N、P、K、Ca、Mg)在各器官中的分布。结果表明,肉桂幼林生物量随林龄的增大而逐渐积累,4年生肉桂幼林生物量达到16 361.4 kg/hm2,其中经济生物量为9 284.5 kg/hm2·a,平均林分净生产量为4 090.4 kg/hm2·a;林龄增加,树叶、树枝、树干的组成比例增加,树根和干皮则呈下降趋势;各器官的营养元素含量以N最高,其次是K和Ca,P和Mg最低;各营养元素贮量在树叶最高,树干最小;85%以上营养元素集中在树叶、树枝、干皮和树根中。 |
| 关键词: 肉桂幼林 生物量 营养元素分布 |
| DOI： |
| 投稿时间：1999-06-30 |
| 基金项目: |
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| Biomass Accumulation and Nutrient Element Distribution in Young Growth of Cinnamomum cassia |
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Liang Weike1, He Bin2
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| (1.Gaofeng Forest Farm of Guangxi, Nanning, 530001;2.Forestry College, Guangxi Univ, Nanning, 530001) |
| Abstract: |
| The biomass accumulation and nutrient element (N,P,K,Ca,Mg) distribution was studied in Cinnamoumum cassia young growth (CCYG) of 1 to 4 year stand age at Guangxi Gaofeng Tree Farm,Jiepai Branch.The results showed that biomass of CCYG incresed with stand age.Biomass accumulation of 4-year-old Cinnamomum cassia amounted to 16361.4 kg/hm2,including 9284.5 kg/hm2·a of economic biomass and 4090.4 kg/hm2·a of average stand net production;The composition of leaf,branch and stem increased with stand age in proportion; white the root, main stem and bark decreased As for the content of nutrient elements of all organs,the amount of N was the most, K and Ca the second, P and Mg the least The nutrient element accumulation was the most in leaf, the least in stem;More than 85% of nutrient element were concentrated in the leaf,branch,bark and root |
| Key words: Cinnamomum cassia young growth biomass accumulation distribution of nutrient element |
