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中国农学通报

中国农学通报 ›› 2013, Vol. 29 ›› Issue (32): 291-295.doi: 10.11924/j.issn.1000-6850.2012-3883

所属专题： 土壤重金属污染

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

怀化市区绿地土壤重金属污染现状研究

梁娟 刘赞   

  • 收稿日期:2012-11-30 修回日期:2013-01-04 出版日期:2013-11-15 发布日期:2013-11-15
  • 基金资助:
    湖南省高校科技创新团队

Study on Heavy Metal Pollution in Greenbelt Soil of Huaihua City

  • Received:2012-11-30 Revised:2013-01-04 Online:2013-11-15 Published:2013-11-15

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摘要： 为了解怀化市区绿地土壤重金属污染现状，利用INNOV-X土壤重金属分析仪，采用单因子污染指数和综合污染指数的方法分析了怀化市区不同区域、不同绿地类型土壤重金属含量特征。结果表明：怀化市区市中心、迎丰区、坨院区等3个区域绿地土壤中Cr和As的单项污染指数均>1，表现为轻度污染，3个区域的综合污染指数均>1，表现为轻度污染，且其变化表现出一定的规律性，即污染程度有从郊区向市中心逐渐加剧的趋势。怀化市区道路交通绿地、公共绿地Cr、As、Cu元素的单项污染指数均>1，表现为轻度或中度污染，除生产绿地外，其他绿地类型综合污染指数均>1，表现为轻度污染。不同绿地类型污染程度不同，表现为道路交通绿地>公共绿地>附属绿地>生产绿地。针对以上情况，采取预防与治理相结合措施综合控制怀化市区绿地土壤重金属污染对于怀化市建设生态宜居城市意义重大。

关键词: 指纹图谱, 指纹图谱

Abstract: In order to understand the current situation of heavy metal pollution in greenbelt soil of Huaihua City, this research studied the quantitative characteristics of heavy metal pollution in different regions and different types of greenbelt soil of Huaihua City, by using INNOV-X soil heavy metal measurement instrument and the method of single factor pollution index and the synthesis pollution index. Results showed that: both the individual pollution indexes of Cr and As element in the three regional greenbelt where located in city center, Yingfeng area, Tuoyuan area were greater than 1, manifesting as light pollution. The synthesis pollution index of three regional greenbelts was greater than 1, also manifesting as light pollution. And the changes showed certain regularity, the pollution degree had the trend of increasing gradually from suburbs to city center. The individual pollution indexes of Cr, As and Cu element in the road greenbelt, the public greenbelt of Huaihua City were all greater than 1, manifesting as light pollution or moderate pollution. Except for the productive greenbelt, the synthesis pollution indexes of other greenbelt types were greater than 1, manifesting as light pollution. Different greenbelt types showed different levels of pollution, road greenbelt > public greenbelt > accessory greenbelt > productive greenbelt. In view of the above situation, adopting preventive and control measures to control the heavy metal pollution in greenbelt soil of Huaihua City is very important to the construction of ecological livable city.