| 长沙市郊蔬菜土壤重金属含量及其与土壤肥力的关系 |
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| 引用本文： | 叶丽丽,王翠红,邹玲,李洪斌,刘勋鑫,王丽慧.长沙市郊蔬菜土壤重金属含量及其与土壤肥力的关系[J].湖南农业科学,2009(10):32-35. |
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| 作者姓名： | 叶丽丽 王翠红 邹玲 李洪斌 刘勋鑫 王丽慧 |
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| 作者单位： | 湖南农业大学资源环境学院,湖南,长沙,410128 |
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| 基金项目： | 湖南省科技厅一般项目 |
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| 摘 要： | 为了解蔬菜土壤重金属含量与土壤肥力的关系，通过田间采样方法，对长沙市郊红菜园土和冲积菜园土O～20cm表土共计290个样品中Cu、Cd、Pb、Zn、CT、As、Hg7种重金属元素含量以及土壤pH、有机质、碱解氮、速效磷、速效钾、全氮、全磷、全钾8个肥力指标的含量进行了分析。结果表明：Cd、Pb、Zn、As4种元素含量红菜园土高于冲积菜园土，Cr和Hg则是冲积菜园土高于红菜园土，Cu在两种菜园土中含量相当；7种重金属元素含量的变异系数两种菜园土壤均以Cd元素的最大。两种菜园土中cu与cd、Ph、zn，cd与Pb、cr，Ph与zn之间均表现为显著以上正相关关系；而Hg与cu、cd之间不表现相关关系；重金属元素之间的显著相关性冲积菜园土多于红菜园土。重金属元素含量与肥力指标之间均能建立一定回归方程，且达显著以上水平；土壤有机质是影响重金属积累的主要因素。
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| 关 键 词： | 长沙市郊 红菜园土 冲积菜园土 重金属含量 土壤肥力因素 |
The Relationship between Soil Fertility and Contents of Heavy-metal Elements in Garden Soils at Suburban Areas of Changsha |
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| YE Li-li,WANG Cui-hong,ZOU Lin,LI Hong-bin,LIU Xun-xin,WANG Li-hui.The Relationship between Soil Fertility and Contents of Heavy-metal Elements in Garden Soils at Suburban Areas of Changsha[J].Hunan Agricultural Sciences,2009(10):32-35. |
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| Authors: | YE Li-li WANG Cui-hong ZOU Lin LI Hong-bin LIU Xun-xin WANG Li-hui |
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| Abstract: | The relationship between soil fertility and contents of heavy-metal elements in garden soils was studied by field investigation. The contents of seven heavy-metal elements (Cu, Cd, Pb, Zn, Cr, As, Hg)and eight fertility indices (pH, organic matter, available N, available P, available K, total N, total P, total K)of 290 soil samples, which were obtained from 0-20 cm topsoil of red garden soils and alluvial garden soils at suburban areas of Changsha, were analyzed respectively. The results showed that the contents of Cd, Pb, Zn and As in red garden soils were much higher than those in alluvial garden soils, but the contents of Cr and Hg were opposite, the content of Cu was same in the two types of garden soils. The variation coefficient of Cd was the highest among seven heavy-metal elements in both garden soils. There were significantly positive correlation relationships between Cu and Cd, Pb, Zn, and also between Cd and Pb, Cr, Pb, Zn; there were no correlation relationships between Hg and Cu, Cd; the significantly correlation relationships in heavy-metal elements in alluvial garden soils were more than that in red garden soils. The regression equation could be built between the contents of heavy-metal elements and fertility indices, and the regression coefficients all reached to significantly level. Soil organic matter is the major factor to influence the accumulation of heavy-metal elements. |
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| Keywords: | suburban areas of Changsha red garden soil alluvial garden soil contents of heavy-metal elements soil fertility factor |
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