北京东郊722土壤垂向剖面重金属污染的磁学响应及其统计意义

沈明洁; 胡守云; BlahaU.; 闫海涛; RöslerW.; AppelE.; HoffmannV.

北京东郊722土壤垂向剖面重金属污染的磁学响应及其统计意义

沈明洁^{1, 2,},
胡守云¹,
BlahaU.³,
闫海涛^{1, 2},
RöslerW.³,
AppelE.³,
HoffmannV.³

1.
中国科学院南京地理与湖泊研究所，江苏南京 210008
2.
中国科学院研究生院，北京 100039
3.
德国图宾根大学地质与古生物研究所，图宾根 72076

基金项目:

国家自然科学基金面上项目 40374021

国家自然科学基金面上项目 40172102

国家重点基础研究发展计划 2002CB412300

德国DFG课题 AP34/21

详细信息

作者简介:
沈明洁(1977—), 女, 博士研究生, 主要从事环境磁学研究. E-mail: mingjie_shen@hotmail.com

中图分类号: P575; P532
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- 被引次数: 0
出版历程
- 收稿日期: 2005-07-06
- 刊出日期: 2006-05-25

Magnetic Responses to Heavy Metal Pollution and Its Statistics Significance for Site 722 Soil Vertical Profile in Eastern Beijing

1.
Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China
2.
Graduate School, Chinese Academy of Sciences, Beijing 100039, China
3.
Institute of Geology and Paleontology, University of Tuebingen, Tuebingen 72076, Germany

摘要

摘要: 对北京城东附近某苗圃内典型的土壤污染剖面进行了环境磁学和地球化学分析, 发现某些重金属(Pb、Zn、Sr、Ba、Cu)和磁性参数呈现相同的垂向变化趋势, 都在37 cm以上显示高值区, 磁化率均值达到192.02×10^-8 m³/kg, 如Pb含量达到67.62 mg/kg, 而在37 cm以下, 明显属低值区, 磁化率均值只有18.38×10^-8 m³/kg, Pb含量也只有23.43 mg/kg.借助于指标聚类分析和主成分分析方法, 揭示出各种指标之间的内在联系, 表明磁参数与Pb、Zn、Sr、Ba、Cu等元素显著相关, 彼此的相关系数都达到0.90以上, 属于同一类别的隶属度在80%以上, 说明磁指标可以作为这些重金属污染的一种代用指标.利用模糊C均值聚类分析分辨出了土壤上部污染物堆积层和下部未污染土壤背景2种不同的特征段.
- 污染 /
- 土壤 /
- 重金属 /
- 环境磁学 /
- 多元统计
Abstract: Two short cores were obtained from a tree nursery in eastern Beijing city, and gray-black pollutants can be found within the uppermost 37 cm of the soil profile. All of them were measured, and one of them, profile BJ722 of 90 cm length, is discussed in detail in this paper. Magnetic measurements, element contents and grain size analysis were carried out to understand the vertical characteristics of magnetic minerals and heavy metals in soil from anthropogenic pollutants, as well as the relationship between magnetic parameters and heavy metals. Magnetic proxies show similar pattern comparing to heavy metal elements, with higher concentration above 37 cm. Index cluster and principal component analysis indicate that strong correlation between magnetic parameters and Pb, Zn, Sr, Ba and Cu (R² > 0.90, membership > 80%). Fuzzy C-means cluster analysis (FCM) shows that anthropogenic pollutants accumulated and enriched above 37 cm. Below 37 cm, soil is unpolluted. Our work demonstrates that magnetic measurements can be used to delineate anthropogenic pollution in the soil profile and to identify the migration depth and the depth of unpolluted soil with the help of multivariate statistics.
- pollution /
- soil /
- heavy metals /
- environmental magnetism /
- multivariate statistics

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图 1 土壤剖面磁学参数的垂向变化曲线

Fig. 1. Vertical variations of magnetic parameters for soil profile

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图 2 剖面不同深度样品的磁化率-温度(κ-T) 变化曲线

Fig. 2. Thermomagnetic κ-T curves of specimen at different depths

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图 3 土壤剖面重金属元素含量的垂向变化曲线

Fig. 3. Vertical variations of heavy metal contents for soil profile

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图 4 土壤剖面多元统计分析图

a和b分别为指标聚类树状图和主成分分析图

Fig. 4. Results of multivariate statistics for soil profile

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图 5 模糊C均值聚类分析图

a和b分别是聚为两类和三类的分布图和特征图

Fig. 5. Results of FCM with the 2nd and 3rd clusters

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参考文献(24)

Chen, H. M., 1996. Heavymet al pollution in soil-plant system. Science Press, Beijing, 71-85 (in Chinese).
Chen, T. B., Zheng, Y. M., Chen, H., et al., 2004. Background concentrations of soil heavy met als in Beijing. Environmental Science, 25 (1): 117-122 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-HJKZ200401025.htm
Dekkers, M. J., 1997. Environmental magnetism: An introduction. Geologieen Mijnbouw, 76: 163-182. doi: 10.1023/A:1003122305503
Facchinelli, A., Sacchi, E., Mallen, L., 2001. Multivariate statistical and GIS-based approach to identify heavy met al sources in soils. Environ. Pollut. , 114: 313-324. doi: 10.1016/S0269-7491(00)00243-8
Heller, F., Strzyszcz, Z., Magiera, T., 1998. Magnetic record of industrial pollution in forest soils of Upper Silesia, Poland. J. Geophys. Res. , 103: 17767-17774. doi: 10.1029/98JB01667
Hu, S. Y., Wang, Y. F., Zhu, Y. X., et al., 2003. Magnetic responses to acidification in Lake Yangzonghai, SW China. Physics and Chemistry of the Earth, 28: 711-717. doi: 10.1016/S1474-7065(03)00129-3
Ju, Y. T., Wang, S. H., Zhang, Q. P., et al., 2004. Mineral magnetic properties of polluted top soils: A case study in Sanming city, Fujian Province, Southeast China. Chinese Journal of Geophysics, 47 (2): 282-288 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-DQWX200402016.htm
Kapicka, A., Jordanova, N., Petrovsky, E., et al., 2001. Effect of different soil conditions on magnetic parameters of power-plant fly ashes. Journal of Applied Geophysics, 48: 93-102. doi: 10.1016/S0926-9851(01)00082-9
Kenneth, L. V., Andrew, P. R., 1995. Environmental magnetism: Past, present, and future. Journal of Geophysical Research, 100 (B2): 2175-2192. doi: 10.1029/94JB02713
Knab, M., Appel, E., Hoffmann, V., 2001. Separation of the anthropogenic portion of heavy met al contents along a highway by means of magnetic susceptibility and fuzzy C-means cluster analysis. European Journal of Environmental & Engineering Geophysics, 6: 125-140.
Lacey, E. M., King, J. W., Quinn, J. G., et al., 2001. Sediment quality in Burlington Harbor, Lake Champlain, U.S.A. . Water, Air & Soil Pollution, 126: 97-120. doi: 10.1023/A:1005271101398
Lecoanet, H., Leveque, F., Ambrosi, J. P., 2003. Combination of magnetic parameters: An efficient way to discriminate soil-contamination sources (South France). Environmental Pollution, 122: 229-234. doi: 10.1016/S0269-7491(02)00299-3
Liu, Q. S., Peng, X. H., 1996. A research on relationship between soil magnetism, geochemical and mineralogical features and hydrocarbon migration in Qiangtang basin, Xizang. Earth Science—Journal of China University of Geosciences, 21 (2): 221-226 (in Chinese with English abstract).
Oldfield, F., 1991. Environmental magnetism—A personal perspective. Quat. Sci. Rev. , 10: 73-85. doi: 10.1016/0277-3791(91)90031-O
Petrovsky, E., Ellwood, B. B., 1999. Magnetic monitoring of air-, land-, and water-pollution. In: Maher, B. A., Thompson, R., eds., Quaternary climates, environments and magnetism. Cambridge University Press, Cambridge, 279-322.
Tian, L. L., Zhu, R. X., Pan, Y. X., 2002. Rock magnetic properties of Hannuoba basalt in Zhangbei Section. Chinese J. Geophys. , 45 (6): 832-838 (in Chinese with English abstract).
Wehland, F., Panaiotu, C., Appel, E., et al., 2002. The dam breakage of Baia Mare—A pilot study of magnetic screening. Phys. Chem. Earth, 27: 1371-1376. doi: 10.1016/S1474-7065(02)00121-3
Zhang, Y. F., Li, C. A., Chen, G. J., et al., 2005. Characteristics and paleoclimatic significance of magnetic susceptibility and stable organic carbon isotopes from a bore in Zhoulao Town, Jianghan plain. Earth Science—Journal of China University of Geosciences, 30 (1): 114-120 (in Chinese with English abstract). doi: 10.1128/JVI.01490-14
陈怀满, 1996. 土壤-植物系统中的重金属污染. 北京: 科学出版社, 71-85.
陈同斌, 郑袁明, 陈煌, 等, 2004. 北京市土壤重金属含量背景值的系统研究. 环境科学, 25 (1): 117-122. https://www.cnki.com.cn/Article/CJFDTOTAL-HJKZ200401025.htm
琚宜太, 王少怀, 张清鹏, 等, 2004. 福建三明地区被污染土壤的磁学性质及其环境意义. 地球物理学报, 47 (2): 282-288. doi: 10.3321/j.issn:0001-5733.2004.02.015
刘庆生, 彭信海, 1996. 西藏羌塘盆地地表土壤的磁性、地球化学及矿物学特征与烃运移相互关系研究. 地球科学——中国地质大学学报, 21 (2): 221-226. https://www.cnki.com.cn/Article/CJFDTOTAL-DQKX199602022.htm
田莉丽, 朱日祥, 潘永信, 2002. 张北汉诺坝玄武岩的岩石磁学性质研究. 地球物理学报, 45 (6): 832-838. doi: 10.3321/j.issn:0001-5733.2002.06.010
张玉芬, 李长安, 陈国金, 等, 2005. 江汉平原湖区周老镇钻孔磁化率和有机碳稳定同位素特征及其古气候意义. 地球科学——中国地质大学学报, 30 (1): 114-120. https://www.cnki.com.cn/Article/CJFDTOTAL-DQKX200501016.htm