| 枫香人工林枯落物和土壤层重金属含量的季节变化 |
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| 引用本文： | 刘虹,文仕知.枫香人工林枯落物和土壤层重金属含量的季节变化[J].湖南林业科技,2016(2):118-121. |
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| 作者姓名： | 刘虹 文仕知 |
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| 作者单位： | 中南林业科技大学,湖南 长沙,410004 |
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| 基金项目： | 湖南省教育厅“枫香人工林生态系统服务功能研究”(11B132)；湖南省科技厅“枫香人工林生态系统服务功能研究”(2012FJ4348)。 |
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| 摘 要： | 对长沙市郊枫香人工林枯落物和土壤层重金属含量季节变化进行研究。结果表明:枯落物中Fe、Zn、Ni含量季节之间的变化差异性显著(P0.05),Mn、Cu、Pb、Cd元素含量季节之间的变化差异性不显著(P0.05);7种重金属元素含量在A、B、C层土壤之间差异性和每层季节变化之间的差异性都不显著(P0.05);枯落物与A层土壤重金属含量的季节变化正好相反,A层土壤重金属含量春季到秋季逐步增加,秋季达到最大值,冬季回落。
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| 关 键 词： | 枫香人工林 枯落物 重金属 |
Seasonal variation in content of heavy metal elements among forest litters and soil layers of Liquidambar formosana plantation |
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| Abstract: | This paper studies seasonal variation in content of heavy metals among forest litters and different soil layers of Liquidambar formosana plantation in Changsha suburb.The results are as follows:there is a remarkable change in the content of Fe,Zn,Ni among forest litters in different season (P <0.05),while the seasonal variation in content of Mn, Cu,Pb,Cd among forest litters is not remarkable (P >0.05).Both the change in content of the seven heavy metals a-mong soil layer A,B,C,and the seasonal variation of that in each soil layer are not remarkable (P >0.05).Forest lit-ters and soil layer A present opposite seasonal change in content of heavy metals.The content of heavy metals in soil layer shows a gradual growth from spring to autumn,which reaches the maximum in autumn and descends in winter. |
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| Keywords: | Liquidambar formosana plantation forest litter heavy metal |
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