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Heavy metal contaminations in a soil-rice system: identification of spatial dependence in relation to soil properties of paddy fields.
J Hazard Mater. 2010 Sep 15; 181(1-3):778-87.JH

Abstract

In order to identify spatial relationship of heavy metals in soil-rice system at a regional scale, 96 pairs of rice and soil samples were collected from Wenling in Zhejiang province, China, which is one of the well-known electronic and electric waste recycling centers. The results indicated some studied areas had potential contaminations by heavy metals, especially by Cd. The spatial distribution of Cd, Cu, Pb and Zn illustrated that the highest concentrations were located in the northwest areas and the accumulation of these metals may be due to the industrialization, agricultural chemicals and other human activities. In contrast, the concentration of Ni decreased from east to west and the mean concentration was below the background value, indicating the distribution of Ni may be naturally controlled. Enrichment index (EI) was used to describe the availability of soil heavy metals to rice. The spatial distribution of EIs for Cd, Ni and Zn exhibited a west-east structure, which was similar with the spatial structures of pH, OM, sand and clay. Cross-correlograms further quantitatively illustrated the EIs were significantly correlated with most soil properties, among which; soil pH and OM had the strongest correlations with EIs. However, EI of Cu showed relative weak correlations with soil properties, especially soil pH and OM had no correlations with EI of Cu, indicating the availability of Cu may be influenced by other factors.

Authors+Show Affiliations

Institute of Soil and Water Resources and Environmental Science, Zhejiang Provincial Key Laboratory of Subtropical Soil and Plant Nutrition, Zhejiang University, Hangzhou, China.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

20561748

Citation

Zhao, Keli, et al. "Heavy Metal Contaminations in a Soil-rice System: Identification of Spatial Dependence in Relation to Soil Properties of Paddy Fields." Journal of Hazardous Materials, vol. 181, no. 1-3, 2010, pp. 778-87.
Zhao K, Liu X, Xu J, et al. Heavy metal contaminations in a soil-rice system: identification of spatial dependence in relation to soil properties of paddy fields. J Hazard Mater. 2010;181(1-3):778-87.
Zhao, K., Liu, X., Xu, J., & Selim, H. M. (2010). Heavy metal contaminations in a soil-rice system: identification of spatial dependence in relation to soil properties of paddy fields. Journal of Hazardous Materials, 181(1-3), 778-87. https://doi.org/10.1016/j.jhazmat.2010.05.081
Zhao K, et al. Heavy Metal Contaminations in a Soil-rice System: Identification of Spatial Dependence in Relation to Soil Properties of Paddy Fields. J Hazard Mater. 2010 Sep 15;181(1-3):778-87. PubMed PMID: 20561748.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Heavy metal contaminations in a soil-rice system: identification of spatial dependence in relation to soil properties of paddy fields. AU - Zhao,Keli, AU - Liu,Xingmei, AU - Xu,Jianming, AU - Selim,H M, Y1 - 2010/05/24/ PY - 2010/03/09/received PY - 2010/05/16/revised PY - 2010/05/17/accepted PY - 2010/6/22/entrez PY - 2010/6/22/pubmed PY - 2010/10/29/medline SP - 778 EP - 87 JF - Journal of hazardous materials JO - J Hazard Mater VL - 181 IS - 1-3 N2 - In order to identify spatial relationship of heavy metals in soil-rice system at a regional scale, 96 pairs of rice and soil samples were collected from Wenling in Zhejiang province, China, which is one of the well-known electronic and electric waste recycling centers. The results indicated some studied areas had potential contaminations by heavy metals, especially by Cd. The spatial distribution of Cd, Cu, Pb and Zn illustrated that the highest concentrations were located in the northwest areas and the accumulation of these metals may be due to the industrialization, agricultural chemicals and other human activities. In contrast, the concentration of Ni decreased from east to west and the mean concentration was below the background value, indicating the distribution of Ni may be naturally controlled. Enrichment index (EI) was used to describe the availability of soil heavy metals to rice. The spatial distribution of EIs for Cd, Ni and Zn exhibited a west-east structure, which was similar with the spatial structures of pH, OM, sand and clay. Cross-correlograms further quantitatively illustrated the EIs were significantly correlated with most soil properties, among which; soil pH and OM had the strongest correlations with EIs. However, EI of Cu showed relative weak correlations with soil properties, especially soil pH and OM had no correlations with EI of Cu, indicating the availability of Cu may be influenced by other factors. SN - 1873-3336 UR - https://www.unboundmedicine.com/medline/citation/20561748/Heavy_metal_contaminations_in_a_soil_rice_system:_identification_of_spatial_dependence_in_relation_to_soil_properties_of_paddy_fields_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0304-3894(10)00664-3 DB - PRIME DP - Unbound Medicine ER -