CAJ | 학술논문

研究了福建省12个县（市、区）郊区部分菜地土壤的汞污染状况，讨论了影响土壤汞累积及汞有效性的主要土壤学性质。结果表明：调查的菜地土壤全汞含量范围为0.038耀1.81 mg·kg-1，其中有33.04%的土壤全汞含量超出国家土壤环境质量二级标准。土壤全汞含量与土壤粘粒、粉粒、有机质含量及CEC之间均呈极显著的正相关，说明这些土壤性质有利于汞在土壤中的累积。土壤有效汞含量范围为0.003耀0.095 mg·kg-1，与土壤全汞含量之间呈极显著的线性正相关。土壤汞有效度随土壤有机质的增加而降低，表明有机质是影响土壤汞有效性的主要土壤学性质。
연구료복건성12개현（시、구）교구부분채지토양적홍오염상황，토론료영향토양홍루적급홍유효성적주요토양학성질。결과표명：조사적채지토양전홍함량범위위0.038요1.81 mg·kg-1，기중유33.04%적토양전홍함량초출국가토양배경질량이급표준。토양전홍함량여토양점립、분립、유궤질함량급CEC지간균정겁현저적정상관，설명저사토양성질유리우홍재토양중적루적。토양유효홍함량범위위0.003요0.095 mg·kg-1，여토양전홍함량지간정겁현저적선성정상관。토양홍유효도수토양유궤질적증가이강저，표명유궤질시영향토양홍유효성적주요토양학성질。
An investigation on mercury pollution of the soils was carried out over the vegetable fields at the suburbs of 12 countries of Fujian Province. The main soil properties which influenced the accumulation and the availability of soil mercury were discussed. Results showed that soil total mercury of the vegetable fields was 0.038~1.81 mg·kg-1, and 33.04%of the total soil mercury of the soil samples exceeded the Na-tional Secondary Standard for acidic agricultural soils. Total soil mercury had significant and positive correlations with the contents of clay, silt, organic matter, as well as CEC of the soils, indicating that these soil properties were in favour of the accumulation of mercury in the soils. The available soil mercury was between 0.003 mg·kg-1 and 0.095 mg·kg-1, showing a significant and positive correlation with total soil mer-cury. The availability factions of soil mercury decreased with increasing soil organic matter, suggesting that organic matter was the major soil property which influenced the availability of mercury in the soils.