气候变化领域集成服务门户(CCPortal): Exploring the fate of heavy metals from mining and smelting activities in soil-crop system in Baiyin, NW China

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DOI	10.1016/j.ecoenv.2020.111234
	Exploring the fate of heavy metals from mining and smelting activities in soil-crop system in Baiyin, NW China
	He, Bihong; Wang, Wei; Geng, Rongyue; Ding, Zhe; Luo, Dongxia; Qiu, Junli; Zheng, Guodong; Fan, Qiaohui
通讯作者	Fan, QH (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Peoples R China.
发表日期	2021
ISSN	0147-6513
EISSN	1090-2414
卷号	207
英文摘要	The activity and fate of heavy metals (HMs) from mining and smelting activities in farmland soil is of great significance to effectively prevent the excessive enrichment of HMs in crops. This study focuses on Baiyin area, a typical mining city in northwest China. In this example, the sources, speciation, and fate of HMs in the farmland soil, and the migration and enrichment characteristics of HMs in the different parts of crops planted in different areas were studied in detail combining the chemical sequential extraction and Pb isotope approaches. Results showed that the mean anthropogenic contributions of HMs in farmland soils were approximately 85%, 88%, 76%, and 41% for the ore district (OD), Xidagou sewage irrigation area (XSIA), Dongdagou sewage irrigation area, and the Yellow River irrigation area, respectively, and the risk that HMs were excessively accumulated in crops in OD and XSIA was high. Compared with soil residual fractions, the isotope ratios 206Pb/207Pb in non -residual fractions (1.1304-1.1669) were closer to the values of local ores, suggesting that anthropogenic HMs from mining and smelting activities were mainly enriched in the non-residual fractions. The isotope ratios 206Pb/207Pb in crops (1.1398-1.1686) further confirmed that those anthropogenic HMs were more easily absorbed and concentrated by crops. HMs contents in leaves from OD and XSIA were generally higher than that in roots, suggesting that atmospheric deposition in OD and XSIA had a greater impact on the HMs concentration of crop leaves,while the excess rate of HMs in grain/fruit was the lowest in all parts of crops. The division and classification of crop planting in mining area can effectively help minimize the risk that HMs from anthropogenic source enter the human body through the food chain.
关键词	SEQUENTIAL EXTRACTION PROCEDURE LEAD-ISOTOPE RATIOS CADMIUM EXPOSURE ENVIRONMENTAL CADMIUM RISK-ASSESSMENT PB VEGETABLES SEDIMENTS POLLUTION ZN
英文关键词	Heavy metals; Soil-crop system; Pb isotope; Source identification; Occurrence speciation
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Toxicology
WOS类目	Environmental Sciences ; Toxicology
WOS记录号	WOS:000592463500002
来源期刊	ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/253638
作者单位	[He, Bihong; Wang, Wei; Geng, Rongyue; Ding, Zhe; Luo, Dongxia; Qiu, Junli; Zheng, Guodong; Fan, Qiaohui] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Peoples R China; [He, Bihong; Wang, Wei; Geng, Rongyue; Ding, Zhe; Luo, Dongxia; Qiu, Junli; Zheng, Guodong; Fan, Qiaohui] Key Lab Petr Resources, Lanzhou 730000, Gansu, Peoples R China; [He, Bihong; Wang, Wei; Geng, Rongyue; Ding, Zhe] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	He, Bihong,Wang, Wei,Geng, Rongyue,et al. Exploring the fate of heavy metals from mining and smelting activities in soil-crop system in Baiyin, NW China[J]. 中国科学院西北生态环境资源研究院,2021,207.
APA	He, Bihong.,Wang, Wei.,Geng, Rongyue.,Ding, Zhe.,Luo, Dongxia.,...&Fan, Qiaohui.(2021).Exploring the fate of heavy metals from mining and smelting activities in soil-crop system in Baiyin, NW China.ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,207.
MLA	He, Bihong,et al."Exploring the fate of heavy metals from mining and smelting activities in soil-crop system in Baiyin, NW China".ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 207(2021).