| 摘要: |
| 多因素逐步回归分析的结果表明:汞在土壤中的富集与土壤代换量和细土粒含量呈极显著的正相关关系,但与土壤有机质的关系不明显。在相同条件下经逐步回归分析和偏相关分析,汞在土壤中的迁移,即在麦粒中的富集仅与土壤物理粘粒的含量呈明显负相关关系,与其它土壤条件无相关性,但在单因素相关分析中,除土壤有机质的影响不明显外,其他土壤条件如代换量、物理粘粒、粘粒含量等均与麦粒汞的富集呈明显的负相关关系。 |
| 关键词: 富集量 土壤有机质 多因素逐步回归分析 负相关关系 物理粘粒含量 土壤条件 单因素相关分析 阳离子代换量 偏相关分析 土壤质地 |
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| SOIL CONDITIONS AND THE ACCUMULATION AND MOVEMENT OF MERCURY |
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| Abstract: |
| The result of analysis of stepwise regression of poly-factors shows that the accumulation of mercury in the soil and the cation exchange capacity of soil and the content of fine grains of soil present thesigni- ficant positive correlation.But the relation with the organic matters of soil is indistinct.Under the same condition,through the stepwise regression analysis and inclinable correlation analysis,the removal of mercury from soil to wheat kernels presents the ingnificant negative correlation with the co... |
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