Journal of East China Normal University(Natural Science) >

2015 , Vol. 2015 >Issue 3: 136 - 145

DOI: https://doi.org/10.3969/j.issn.1000-5641.2015.03.016

Article

Study of spatial distribution and spread of heavy metals in urban soil based on synthetic PCA model

  • JIANG Shi-Quan ,
  • LIU Zhong-Xia ,
  • JIANG Shi-Ping
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Received date: 2014-03-01

  Online published: 2015-05-28

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Abstract

In this paper, soil samples were collected from five different functional areas of a city, and concentrations of eight heavy metals contained in each soil sampling were tested by X ray fluorescence spectrometer. PCA was applied to investigate categories of main heavy metals in contaminated areas and determine the respective contribution of eight heavy metals to contamination in each functional area. Based on output coefficients of the PCA model, the functional relationship between the concentration of each heavy metal and its spatial distribution in each functional area is established and an equation that describes spreading features of heavy metals is constructed. Targets for pollution control and countermeasures can thus be found.

Key words： Xray fluorescence analysis; principal component analysis; heavy metal pollution

Cite this article

JIANG Shi-Quan , LIU Zhong-Xia , JIANG Shi-Ping . Study of spatial distribution and spread of heavy metals in urban soil based on synthetic PCA model[J]. Journal of East China Normal University(Natural Science), 2015 , 2015(3) : 136 -145 . DOI: 10.3969/j.issn.1000-5641.2015.03.016

References

［1］蒋诗泉.模糊数学方法及X射线荧光分析技术在测定城市重金属污染中的应用［J］.光谱实验室，2012,29(4):21352139.

［2］林燕萍,赵阳,胡恭任,等.多元统计在土壤重金属污染源解析中的应用［J］.地球与环境，2011，39（4）:536542.

［3］胡大伟,卞新民,许泉.基于ANN 的土壤重金属分布和污染评价研究［J］.长江流域资源与环境，2006，15（4）:475479.

［4］赵志忠， RATE A W，唐少霞,等.海南岛农用地土壤重金属元素的空间分布特征及其环境意义［J］.农业环境科学学报，2007,27(1):182187.

［5］马志宏，穆安冬，宫明.基于傅里叶变换的重金属扩散模型对污染源位置的研究［J］.安徽农业科学，2013,41（11）：50145015.

［6］刘文斌,刘欢,刘雅晴,等.土壤污染程度分析及迁移规律的优化模型［J］.数学理论与应用,2012,32(2):9196.

［7］何用, 李义天.重金属迁移转化模型研究［J］.水科学进展，2004,15（5）：576583.

［8］吴新民，李恋卿,潘根兴,等.南京市不同功能城区土壤中重金属Cu、Zn、Pb和Cd 的污染特征［J］.环境科学,2003,24(3):105111.

［9］卓文珊，唐建锋, 管东生.广州市城区土壤重金属空间分布特征及其污染评价［J］.中山大学学报:自然科学版,2009,48(4):4751.

［10］柳云龙，章立佳，韩晓非,等.上海城市样带土壤重金属空间变异特征及污染评价［J］.环境科学,2012,32（2）:600605.

［11］蒋诗泉.基于PCA和LSSVM的傅里叶变换近红外光谱的黄酒酒龄的鉴别模型研究［J］.光谱实验室，2012,29(2):806810.

［12］王从陆，吴超，段瑜.基于主成分综合的矿区农田重金属污染评价［J］.中国工程科学，2008，7(10): 181182.

［13］王学松，秦勇.利用对数正态分布图解析徐州城市土壤中重金属元素来源和确定地球化学背景值［J］.地球化学，2007，1（36）：98102.

［14］SIEGAL F R. Environmental Geochemistry of Potentially Toxic Metals［M］. Heidelberg: Springer, 2002: 1192. 
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