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中国农学通报 ›› 2020, Vol. 36 ›› Issue (13): 110-114.doi: 10.11924/j.issn.1000-6850.casb19010029

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

云南省沘江流域底泥中Pb污染分布特征及评价

韩云昌1,2, 张乃明1,2(), 包立1,2, 杨牧青1   

  1. 1 云南省土壤培肥与污染修复工程实验室,昆明 650201
    2 云南农业大学资源与环境学院,昆明 650201
  • 收稿日期:2019-01-06 修回日期:2019-05-14 出版日期:2020-05-05 发布日期:2020-04-16
  • 通讯作者: 张乃明
  • 作者简介:韩云昌,男,1992年出生,山东济南人,硕士,主要从事土壤环境污染与监测方面的研究。通信地址:650201 云南省昆明市盘龙区沣源路452号 云南农业大学,Tel:0871-65229840,E-mail:2441701088@qq.com。
  • 基金资助:
    云南省科技惠民计划“沘江流域农田土壤重金属污染修复关键技术研究及应用”(2014RA018);云南省科技创新人才计划(2015HC018);对外科技合作计划-院士专家工作站(2015IC022)

Pb Pollution in Sediments of the Bijiang Watershed of Yunnan: Distribution Characteristics and Evaluation

Han Yunchang1,2, Zhang Naiming1,2(), Bao Li1,2, Yang Muqing1   

  1. 1 Yunnan Soil Fertility and Pollution Remediation Engineering Laboratory, Kunming 650201
    2 College of Resource and Environment, Yunnan Agricultural University, Kunming 650201
  • Received:2019-01-06 Revised:2019-05-14 Online:2020-05-05 Published:2020-04-16
  • Contact: Naiming Zhang

摘要:

为更好地了解沘江流域底泥中Pb的分布,以沘江流域底泥为研究对象,通过实地考察,应用统计分析等方法分析沘江流域底泥中Pb污染特征。结果表明:(1)沘江流域底泥Pb平均含量为1764.23 mg/kg;(2)底泥中Pb含量呈现上游>中游>下游趋势;(3)沘江流域底泥中Pb的单因子污染指数极高,上游、中游、下游平均单因子污染指数分别为6.04、2.51、2.03。综合分析流域底泥中Pb含量及单因子污染指数,发现沘江流域Pb污染状况严重,呈现上游>中游>下游趋势,极有可能影响沿岸农田土壤。

关键词: 沘江流域, 沉积物, Pb, 污染评价, 分布特征, 单因子污染指数

Abstract:

The paper aims to understand the distribution of Pb in the sediments of the Bijiang watershed, we took the sediments in the Bijiang watershed as the study object, and analyzed the Pb pollution characteristics in the sediments of the Bijiang watershed by field investigation and statistical analysis. The results showed that: (1) the average content of Pb in the sediments of the Bijiang watershed was 1764.23 mg/kg; (2) the content of Pb in sediments was upstream>midstream>downstream; (3) the single factor pollution index of Pb in the sediments of the Bijiang watershed was extremely high, and the average single factor pollution index of upstream, midstream and downstream was 6.04, 2.51 and 2.03, respectively. Based on the comprehensive analysis of Pb content and single factor pollution index in the sediments of the basin, it is found that the pollution status of Pb in the Bijiang watershed is serious, showing an upstream>midstream>downstream trend, which is likely to affect the coastal farmland soil.

Key words: Bijiang watershed, sediment, Pb, pollution assessment, distribution characteristics, single factor pollution index

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