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河北主要土壤中重金属镉、铅形态与土壤酶活性的关系
引用本文:刘霞,刘树庆,王胜爱.河北主要土壤中重金属镉、铅形态与土壤酶活性的关系[J].河北农业大学学报,2002,25(1):33-37,60.
作者姓名:刘霞  刘树庆  王胜爱
作者单位:1. 河北农业大学生命科学学院,河北保定,071001
2. 河北农业大学资环学院,河北保定,071001:
3. 保定市农业局,河北保定,071000
摘    要:采用网室盆栽试验,运用连续提取方法,研究了河北平原潮土、潮褐土2种土类上Cd、Pb的化学形态特征与4种土壤酶活性(脲酶、H2O2酶、转化酶、碱性磷酸酶)间的关系。结果表明:用Cd、Pb的化学形态研究重金属对土壤酶活性的影响明显好于总量Cd、Pb。交换态和有机结合态Cd、Pb对土壤酶活性的抑制作用贡献最大。在石灰性土壤中,把交换态Cd、有机结合态Cd和4种土壤酶活性共同作为评价土壤Cd污染程度的主要生化指标是可行的。

关 键 词:潮土  潮褐土      形态  土壤酶活性  土壤重金属污染  污染程度评价  生代指标
文章编号:1000-1573(2002)01-0033-05

The relationship between heavy metal forms and soil enzymatic activities in the main soils of Hebei province
LIU Xia ,LIU Shu qing ,WANG Sheng ai.The relationship between heavy metal forms and soil enzymatic activities in the main soils of Hebei province[J].Journal of Agricultural University of Hebei,2002,25(1):33-37,60.
Authors:LIU Xia  LIU Shu qing  WANG Sheng ai
Institution:LIU Xia 1,LIU Shu qing 2,WANG Sheng ai 3
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 in the plain of Hebei by pot experiment . The result showed that the most contributions to inhibiting effect of soil enzymatic activities were the exchangeable and organic Cd, Pb. In calcareous soils, it was feasible to use the exchangeable Cd and organic Cd and four enzymatic activities as primary biochemical index to evaluate Cd polluted extent in the soils.
Keywords:alluvial soil  cinnamon soil  cadmium  lead  forms  soil enzymatic activities
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