Potential Ecological Risk Assessment of Heavy Metals in Forest Land Added with Aged Refuse

WANG Ming-yong; GUO Xiao-ping; ZHANG Ping; WANG Wei-lu; SU Zhao-hui; ZHANG Jin-song

您当前的位置：

首页 >

文章列表页 >

Potential Ecological Risk Assessment of Heavy Metals in Forest Land Added with Aged Refuse

- Potential Ecological Risk Assessment of Heavy Metals in Forest Land Added with Aged Refuse
- Bulletin of Soiland Water Conservation Vol. 32, Issue 1, Pages: 62-67(2013)
- 作者机构：
  
  1. 北京林业大学水土保持学院水土保持与荒漠化防治教育部重点实验室,北京,100083
  2. 华润置地(秦皇岛)有限公司,河北,秦皇岛,066000
  3. 北京市环境卫生设计科学研究所,北京,100086
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2013
- 稿件说明：
移动端阅览
WANG Ming-yong, GUO Xiao-ping, ZHANG Ping, et al. Potential Ecological Risk Assessment of Heavy Metals in Forest Land Added with Aged Refuse[J]. Bulletin of Soiland Water Conservation, 2013, 32(1): 62-67.
DOI：

WANG Ming-yong, GUO Xiao-ping, ZHANG Ping, et al. Potential Ecological Risk Assessment of Heavy Metals in Forest Land Added with Aged Refuse[J]. Bulletin of Soiland Water Conservation, 2013, 32(1): 62-67. DOI：

摘要

以矿化垃圾施用林地土壤为研究对象

采用Hakanson潜在生态风险指数评价法对5种重金属元素Cd

Pb的潜在风险进行评价

同时还对不同深度土壤重金属的迁移及污染程度进行了讨论。不同矿化垃圾添加量下0—90cm土层的潜在生态风险综合评价结果表明

随着矿化垃圾添加量增加

土壤重金属污染有加重的趋势

25%与50%矿化垃圾添加量的土壤污染程度达到中等程度

100%矿化垃圾添加量的土壤达到重度污染程度。矿化垃圾对土壤造成的污染主要集中在0—50cm土壤层内

对垂直方向50cm以下土壤影响较小。Hg是矿化垃圾施用中最主要的污染因子。土壤剖面垂直方向重金属含量分析结果表明

Pb具有从土壤表层向下层递减的趋势。重金属元素Hg和Cr含量具有土壤表层富集的特征。矿化垃圾大量的施用可能会导致Hg和Cr土壤污染

但不会导致Cd

Pb在土层中累积与垂直迁移。

Abstract

Soils in forest land added with aged refuse were investigated.Hankson ecological risk method wasused to assess the potential ecological risk of the pollution by heavy metals(Cd

Cr and Pb)

andthe vertical distribution and migration of the heavy metals were discussed.Results from the assessment forthe 0-90cm soil layers with different portions of aged refuse showed that heavy metal contamination wasgradually aggravated with the increased quantity of aged refuse.The heavy metal contamination reached amedium level when the added portions of aged refuse were 25% and 50% and a serious level when the addedportion was 100%.Pollution caused by aged refuse was mainly concentrated in the 0-50cm soil layer andhowever

it had a less impact on soil layer 50cm below soil surface.Hg was the main metal causing pollutionin the application of aged refuse.The contents of the five heavy metals(Cd

Cr and Pb)in verticalsoil profile showed a decreasing trend from cultivated horizon to lower layer.Hg and Cr were enriched in soilsurface layer.The application of aged refuse might lead to Hg and Cr pollutions

but might not lead to Cd

As and Pb enrichments in soil and vertical migration.

关键词

Keywords

references

Views

1469

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Vertical Distribution of Soil Moisture in the Loess Hilly and Gully Area

Distribution of Heavy Metal Speciation in Surface Sediment of Weihe River at Xianyang Section

Causes and Harnessing Measures of Soil and Water Loss in the Low Foothill Area of South Central Shandong Province

Investigation and Assessment on Pollution of Soil Heavy Metals in Xiangtan City

Vertical Dynamic Change of Soil Erosion in Yimeng Mountainous Area

Related Author

YUE Hong-chang

WANG Yu

LI Chan-yun

WANG Wei

WANG Shuan-quan

ZHAI Yu-xiang

LU Xin-wei

HUANG Jing

Related Institution

Center of Agro-tech Extensive in Yichuan County, Yichuan

The Project Office of Baota District in Yanan City, Yanan

College of Agronomy, Northwest A & F University, Yangling

School of Tourism and Environment Science, Shaanxi Normal University, Xian

College of Land and EnvironmentShenyang Agricultural UniversityShenyangLiaoning 1100161China

⁰