| 秦内径亚高山草甸30种草本植物的碳、氮分布研究 |
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| 引用本文： | 何亚婷,刘文治,党高弟,张全发. 秦内径亚高山草甸30种草本植物的碳、氮分布研究[J]. 草业科学, 2008, 25(10): 1-5 |
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| 作者姓名： | 何亚婷 刘文治 党高弟 张全发 |
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| 作者单位： | 1. 中国科学院武汉植物园,湖北,武汉,430074
2. 佛坪国家级自然保护区管理局,陕西,佛坪,723400 |
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| 基金项目： | 中国科学院"百人计划" |
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| 摘 要： | 以秦岭佛坪国家级自然保护区内亚高山草甸30种草本植物为对象,研究了碳、氮在亚高山草甸植物中的分布情况.结果表明:碳、氮在植物组织中总的分布趋势为叶>茎>根,碳/氮在植物组织中的分布为茎>根>叶,方差分析显示碳、氮及碳/氮在植物根、茎、叶中的分布差异极显著(P<0.01).在单个植物的根、茎、叶中,碳、氮及碳/氮的分布具有种的特异性.在以其光合特征进行聚类分析得到的4个聚类组群中,碳、氮及碳/氮在每个组群根、茎、叶中的分布差异不显著(P>0.05).
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| 关 键 词： | 秦岭 亚高山草甸 碳含量 氮含量 |
Study on content of C and N contents of 30 plant species in Subalpine Meadow of Qinling Mountains |
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| HE Ya-ting,LIU Wen-zhi,DANG Gao-di,ZHANG Quan-fa. Study on content of C and N contents of 30 plant species in Subalpine Meadow of Qinling Mountains[J]. Pratacultural Science, 2008, 25(10): 1-5 |
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| Authors: | HE Ya-ting LIU Wen-zhi DANG Gao-di ZHANG Quan-fa |
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| Abstract: | 30 species in subalpine meadow of Qinling Mountains were selected to analyze the distribution pattern of the carbon and nitrogen contents.The results showed that the order of C and N content in plant tissue were leaves>shoots>roots,and the C/N ratio was shoots>roots>leaves.Results of One-way ANONA analysis indicated that the distribution of C,N and the C/N ratio in roots,shoots,leaves were significantly different(P<0.01)and species-specific,and the distribution in four groups based on their gas exchange traits had no significant difference(P>0.05) among roots,shoots and leaves. |
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| Keywords: | Qinling Mountains subalpine meadow carbon content Nitrogen content |
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