| 旱冬瓜体内7种矿质元素含量与立地土壤的相关性 |
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| 引用本文： | 和丽萍,孟广涛,李贵祥,柴 勇,方向京,张正海.旱冬瓜体内7种矿质元素含量与立地土壤的相关性[J].西北林学院学报,2008,23(3). |
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| 作者姓名： | 和丽萍 孟广涛 李贵祥 柴 勇 方向京 张正海 |
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| 作者单位： | 云南省林业科学院，云南昆明650204 |
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| 摘 要： | 采用原子吸收分光光度法和相关分析法对主要造林树种旱冬瓜体内各营养器官的
7种矿
质元素含量的分布规律、元素之间以及植物与立地土壤之间的相关性进行了研究。结果
表明，旱冬
瓜不同器官各元素含量有着显著的差异，K、Mg、Fe、Zn、Cu、Mn在叶片中含量最多，C
a在树皮中
含量最高;大多数元素在树干中含量最低。旱冬瓜对K、Ca、Mg、Zn、Cu有较强的吸收富
集能力，
对土壤富集系数大小依次为Mg>Ca>Cu>K>Zn>Mn>Fe，一般叶的富集系数最高。元素间和
元素与立地土壤的相关分析表明，K、Mg、Mn、Fe、 Cu之间有显著的相关性，Ca和Mn之
间的相关
性显著，除Fe元素外，植物体中K、Mg、Mn、Zn、Cu元素含量与土壤中元素含量关系相一
致。
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| 关 键 词： | 旱冬瓜 矿质元素 分布规律 富集系数 相关性 |
Mineral Elements Distribution and Correlation in Alnus nepalensis and
the Soil |
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| HE Liˉping,MENG Guangˉtao,LI Guiˉxiang,CHAI Yong,FANG Xiangˉjing,ZHANG Zhengˉhai.Mineral Elements Distribution and Correlation in Alnus nepalensis and
the Soil[J].Journal of Northwest Forestry University,2008,23(3). |
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| Authors: | HE Liˉping MENG Guangˉtao LI Guiˉxiang CHAI Yong FANG Xiangˉjing ZHANG Zhengˉhai |
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| Institution: | Yunnan Academy of Forestry， Kunming， Yunnan650204，China |
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| Abstract: | 7 mineral elements（K， Ca， Mg， Mn ， Fe ，Zn and Cu，） of Al
nus nepalensis were determinate by
atomic absorption spectrophotometer， the distribution characteristics
and the accumulation index were also
investigated by correlation analysis. The results showed that there e
xisted significant differences in the
contents of mineral elements in different organs. The contents of K
， Mg， Fe， Zn， Cu，and Mn were highˉ
er in leaf and Ca was higher in barks. Majority mineral elements w
ere lower in stem. The plant exhibited
strong enrichment ability to K，Ca，Mg，Zn and Cu.The accumulation r
atios in plants to those in soil were
in an order of Mg>Ca>Cu>K>Zn>Mn>Fe. The accumulation coeficient of l
eaf was higher than other
organs. There were significant correlation among K，Mg，Mn，Fe and Cu
， and the correlation were statistiˉ
cally significant between K and Mg. Moreover， there existed significa
nt correlation between the elements
in soil and plant. |
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| Keywords: | Alnus nepalensis mineral element concentration factor correlation |
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