Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.geoderma.2017.06.008 |
Accumulation, spatio-temporal distribution, and risk assessment of heavy metals in the soil-corn system around a polymetallic mining area from the Loess Plateau, northwest China | |
Zang, Fei; Wang, Shengli1; Nan, Zhongren; Ma, Jianmin; Zhang, Qian; Chen, Yazhou; Li, Yepu | |
通讯作者 | Wang, Shengli |
来源期刊 | GEODERMA |
ISSN | 0016-7061 |
EISSN | 1872-6259 |
出版年 | 2017 |
卷号 | 305页码:188-196 |
英文摘要 | To investigate the heavy metal concentrations in soil-corn system, 30 pairs of soil (0-20 cm) and corn grain samples were collected from Baiyin City, China, a typical industrial oasis in Loess Plateau. The results indicated that the mean concentrations of Cu, Zn, Cd and Pb in agricultural soils from the Dongdagou and Xidagou stream valleys exceeded the soil background concentrations of Gansu Province, China. Correlation analysis showed that the correlation among the total Cu, Zn, Cd and Pb in soils were significant at P < 0.01. Results showed that only a fraction of Cd and Pb in the corn grain samples exceeded the limits of eight elements in cereals, legume, tubes and its products and the maximum levels of contaminants in foods in China. The spatial distribution pattern of Cd in corn grains was highly similar to that in sampled soils. Correlation analysis revealed that the main source of Zn, Cd and Pb in corn grains was soils. Temporal distribution of heavy metals showed that heavy metal content in soils was still high, and the Cu, Cd, Pb content in corn grains showed a decreasing trend over 20 years. The values of pollution index (PI) and Nemerow integrated pollution index (NIPI) indicated that the heavy metal pollution level was Cd > Zn > Cu > Pb, and Cu, Zn, Cd and Pb belong to safe to heavy pollution. The results of hazard quotient (HQ) indicated that there was no obvious adverse health effect for children and adults. |
英文关键词 | Heavy metals Soils Corn grains Spatio-temporal distribution Risk assessment Loess Plateau |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
收录类别 | SCI-E |
WOS记录号 | WOS:000408075900019 |
WOS关键词 | TRITICUM-AESTIVUM L. ; ZEA-MAYS L. ; HEALTH-RISK ; URBAN SOILS ; CONTAMINATED SOILS ; AGRICULTURAL SOILS ; BAIYIN REGION ; WHEAT ; PLANTS ; POLLUTION |
WOS类目 | Soil Science |
WOS研究方向 | Agriculture |
来源机构 | 兰州大学 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/199213 |
作者单位 | 1.Lanzhou Univ, Coll Earth & Environm Sci, Gansu Key Lab Environm Pollut Predict & Control, Tianshui South Rd 222, Lanzhou 730000, Gansu, Peoples R China; 2.Lanzhou Univ, Coll Earth & Environm Sci, Minist Educ, Key Lab Western Chinas Environm Syst, Tianshui South Rd 222, Lanzhou 730000, Gansu, Peoples R China |
推荐引用方式 GB/T 7714 | Zang, Fei,Wang, Shengli,Nan, Zhongren,et al. Accumulation, spatio-temporal distribution, and risk assessment of heavy metals in the soil-corn system around a polymetallic mining area from the Loess Plateau, northwest China[J]. 兰州大学,2017,305:188-196. |
APA | Zang, Fei.,Wang, Shengli.,Nan, Zhongren.,Ma, Jianmin.,Zhang, Qian.,...&Li, Yepu.(2017).Accumulation, spatio-temporal distribution, and risk assessment of heavy metals in the soil-corn system around a polymetallic mining area from the Loess Plateau, northwest China.GEODERMA,305,188-196. |
MLA | Zang, Fei,et al."Accumulation, spatio-temporal distribution, and risk assessment of heavy metals in the soil-corn system around a polymetallic mining area from the Loess Plateau, northwest China".GEODERMA 305(2017):188-196. |
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