潮土和潮褐土中重金属形态与土壤酶活性的关系
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THE RELATIONSHIP BETWEEN HEAVY METAL FORMS AND SOIL ENZYMATIC ACTIVITIES IN ALLU VIAL MEADOW SOILS AND MEADOW CINNAMON SOILS
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    摘要:

    采用大田取样,运用连续提取方法,研究了河北平原潮土、潮褐土两种土壤中Cd、Pb的化学形态特征与四种土壤酶(脲酶、H2O2酶、转化酶、碱性磷酸酶)活性间的关系.结果表明:大田两种土壤中交换态Cd、Pb对脲酶活性有显著抑制作用.因此,在石灰性土壤中,把交换态Cd、Pb和脲酶活性共同作为评价土壤Cd、Pb污染程度的主要生化指标是可行的.

    Abstract:

    Successive extraction method was adopted to study the relationship between characteristics of chemical forms of cadmium and lead and four soil enzymatic activities(Calatase,Urease,Invertase,Alkalin phosphatase) in alluvial meadow soil and meadow cinnamon soil by field sampling.The result showed that the most contributions to inhibiting effect of soil enzymatic activities,especially to Urease activities in lowly polluted soils,were the exchangeable Cd and Pb,the next were the Fe-Mn oxide Cd and Pb.When the Urease activities was decreased by 10% in meadow cinnamon soil,the concentration of exchangeable Cd, Pb were 0.09 mg kg-1,0.12 mg kg-1 respectively and in alluvial meadow soil,the concentration of the exchangeable Pb was 0.92 mg kg-1.In calcareous soils,it was feasible to use the exchangeable Cd,Pb and Urease activities as primary biochemical index to evaluate Cd,Pb polluted soils.

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刘霞,刘树庆,唐兆宏.潮土和潮褐土中重金属形态与土壤酶活性的关系[J].土壤学报,2003,40(4):581-587. DOI:10.11766/trxb200108100415 Liu Xia, Liu Shu-qing, Tang Zhao-hong. THE RELATIONSHIP BETWEEN HEAVY METAL FORMS AND SOIL ENZYMATIC ACTIVITIES IN ALLU VIAL MEADOW SOILS AND MEADOW CINNAMON SOILS[J]. Acta Pedologica Sinica,2003,40(4):581-587.

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  • 收稿日期:2001-08-10
  • 最后修改日期:2002-06-07
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  • 在线发布日期: 2013-02-25
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