Soil Heavy Content Analysis and Ecological Risk Assessment of Different Landuse Types in Daqing Region

ZHAO Shu-ping; CHEN Li-xin

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Soil Heavy Content Analysis and Ecological Risk Assessment of Different Landuse Types in Daqing Region

更新时间：2024-11-07

- Soil Heavy Content Analysis and Ecological Risk Assessment of Different Landuse Types in Daqing Region
- Vol. 25, Issue 5, (2011)
- 作者机构：
  
  东北林业大学
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2011
- 稿件说明：
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ZHAO Shu-ping, CHEN Li-xin. Soil Heavy Content Analysis and Ecological Risk Assessment of Different Landuse Types in Daqing Region[J]. 2011, 25(5).
DOI：

ZHAO Shu-ping, CHEN Li-xin. Soil Heavy Content Analysis and Ecological Risk Assessment of Different Landuse Types in Daqing Region[J]. 2011, 25(5). DOI：

摘要

运用对照分析方法

以大庆市七五土壤重金属含量、黑龙江省土壤背景值和国家土壤环境质量标准为对照

对比分析大庆地区不同土地利用类型(工业用地

未利用地

草地

旱田和水田)土壤10种重金属(As、Cd、Cr、Cu、Hg、Ni、Pb、Zn、V、Mn)含量变化规律

并进行了生态危害评价。结果显示:As、Zn、Hg、Pb含量最高的是工业用地

Cd、Cr、Cu、Ni、Mn、V含量最高的是旱田

其次草地

水田和未利用地土壤重金属含量较低;对比七五大庆市土壤重金属含量发现

除V外

其余含量都有所增加

以Hg、As、Cd增加幅度较大

尤其是Hg污染要密切关注;土壤重金属间存在复合污染

pH与重金属间的相关性不显著

重金属与有机质、CEC相关性显著;从单项潜在危害指数(Ei)分析

工业用地Hg含量达到严重生态危害程度

土壤Cd的Ei值在5种土地利用类型中都较大

以旱田最为严重。5种土地利用类型土壤重金属综合潜在生态危害指数(RI)值排序为:R工业用地>R旱田>R水田>R草地>R未利用地

工业用地属极度潜在生态危害程度

其他利用地属轻度潜在生态危害程度。

Abstract

Compared to soil heavy metal values as 75 period of Daqing city

soil background values of Heilongjiang province and the state soil environment quality standards

the content rules of ten soil heavy metals in different landuse types were analyzed by using contrast analysis method

and the assessment of ecological risk was also studied.The results showed that the contents of soil As

Hg and Pb were the highest in industrial land

and the contents of soil Cd

Mn and V were the highest in dry land.The so...

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