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Spatial distribution of heavy metals of agricultural soils in Dongguan, China.
J Environ Sci (China). 2004; 16(6):912-8.JE

Abstract

Distribution and speciation of heavy metals of agricultural soils(85 surface soil samples and 4 soil profiles) in Dongguan were investigated, while total Cr, Cu, Ni, Pb, Zn(abbreviated as Cr, Cu, Ni, Pb, Zn) and available Cu, Zn(Av-Cu, Av-Zn) were analyzed by a flame absorption spectrophotometer(AAS), and total Cd(Cd) was analyzed using graphite furnace AAS. The content of Cd, Cu and Ni was partially much more than the second grade of GB15618-1995 even though the mean contents of all heavy metal were less than the threshold value of the second grade and only the mean content of Pb was more than the value of national background. Results of descriptive statistic showed that the mean content of heavy metals should depend on land utilization and spatial location at some extent. The heavy metal contents were higher in the Southwest and Northwest than in the Central. In addition, the mean contents of Zn and Pb in Dongguan paddy soils were significantly higher than those of Pearl River Delta(PRD) and Taihu Lake region(TLR). Correlation analyses indicated that there existed significant correlation between Cr and Ni in orchard soils, and among Zn, Cd and Cu, between Av-Cu and Cu, between Av-Zn and Cr, Ni, pH value in vegetable soils, and a weak relationship between Cd, Cu and Pb, between Av-Zn and Zn. Principal component analyses(PCA) showed that the order of importance should be Zn > Pb > Cr > Ni > Cu.

Authors+Show Affiliations

Guangdong Institute of Eco-Environment and Soil Sciences, Guangdong Key Laboratory of Integrated Control of Agro-Environment, Guangzhou 510650, China.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

15900719

Citation

Xia, Yun-Sheng, et al. "Spatial Distribution of Heavy Metals of Agricultural Soils in Dongguan, China." Journal of Environmental Sciences (China), vol. 16, no. 6, 2004, pp. 912-8.
Xia YS, Li FB, Wan HF, et al. Spatial distribution of heavy metals of agricultural soils in Dongguan, China. J Environ Sci (China). 2004;16(6):912-8.
Xia, Y. S., Li, F. B., Wan, H. F., Ma, J., Yang, G. Y., Zhang, T. B., & Luo, W. (2004). Spatial distribution of heavy metals of agricultural soils in Dongguan, China. Journal of Environmental Sciences (China), 16(6), 912-8.
Xia YS, et al. Spatial Distribution of Heavy Metals of Agricultural Soils in Dongguan, China. J Environ Sci (China). 2004;16(6):912-8. PubMed PMID: 15900719.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Spatial distribution of heavy metals of agricultural soils in Dongguan, China. AU - Xia,Yun-Sheng, AU - Li,Fang-Bai, AU - Wan,Hong-Fu, AU - Ma,Jin, AU - Yang,Guo-Yi, AU - Zhang,Tian-Bin, AU - Luo,Wei, PY - 2005/5/20/pubmed PY - 2005/7/20/medline PY - 2005/5/20/entrez SP - 912 EP - 8 JF - Journal of environmental sciences (China) JO - J Environ Sci (China) VL - 16 IS - 6 N2 - Distribution and speciation of heavy metals of agricultural soils(85 surface soil samples and 4 soil profiles) in Dongguan were investigated, while total Cr, Cu, Ni, Pb, Zn(abbreviated as Cr, Cu, Ni, Pb, Zn) and available Cu, Zn(Av-Cu, Av-Zn) were analyzed by a flame absorption spectrophotometer(AAS), and total Cd(Cd) was analyzed using graphite furnace AAS. The content of Cd, Cu and Ni was partially much more than the second grade of GB15618-1995 even though the mean contents of all heavy metal were less than the threshold value of the second grade and only the mean content of Pb was more than the value of national background. Results of descriptive statistic showed that the mean content of heavy metals should depend on land utilization and spatial location at some extent. The heavy metal contents were higher in the Southwest and Northwest than in the Central. In addition, the mean contents of Zn and Pb in Dongguan paddy soils were significantly higher than those of Pearl River Delta(PRD) and Taihu Lake region(TLR). Correlation analyses indicated that there existed significant correlation between Cr and Ni in orchard soils, and among Zn, Cd and Cu, between Av-Cu and Cu, between Av-Zn and Cr, Ni, pH value in vegetable soils, and a weak relationship between Cd, Cu and Pb, between Av-Zn and Zn. Principal component analyses(PCA) showed that the order of importance should be Zn > Pb > Cr > Ni > Cu. SN - 1001-0742 UR - https://www.unboundmedicine.com/medline/citation/15900719/Spatial_distribution_of_heavy_metals_of_agricultural_soils_in_Dongguan_China_ DB - PRIME DP - Unbound Medicine ER -