| 金矿区土壤污染评价及植物调查研究 |
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| 引用本文： | 卢 楠,李 刚,朱代文.金矿区土壤污染评价及植物调查研究[J].中国矿业,2018,27(5). |
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| 作者姓名： | 卢 楠 李 刚 朱代文 |
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| 作者单位： | （1.国土资源部退化及未利用土地整治工程重点实验室，陕西 西安 710075；2.陕西省土地工程建设集团，陕西 西安 710075；3.陕西省土地整治工程技术研究中心，陕西 西安 710075;4. 陕西地建土地工程技术研究院有限责任公司，陕西 西安 710075,（1.国土资源部退化及未利用土地整治工程重点实验室，陕西 西安 710075；2.陕西省土地工程建设集团，陕西 西安 710075；3.陕西省土地整治工程技术研究中心，陕西 西安 710075;4. 陕西地建土地工程技术研究院有限责任公司，陕西 西安 710075,（1.国土资源部退化及未利用土地整治工程重点实验室，陕西 西安 710075；2.陕西省土地工程建设集团，陕西 西安 710075；3.陕西省土地整治工程技术研究中心，陕西 西安 710075;4. 陕西地建土地工程技术研究院有限责任公司，陕西 西安 710075 |
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| 基金项目： | 陕西省重点科技创新团队计划项目（2016KCT-23） |
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| 摘 要： | 以小秦岭金矿区内选矿厂尾渣堆为研究对象,采集尾渣堆积点及周边土壤样品36个,以土壤样品中的Cr、Cu、Zn、Ni、As作为研究对象,对不同采样点及剖面土壤Cr、Cu、Zn、Ni、As污染程度及相关性进行分析。采集土壤样品附近芦苇、花生、茵陈蒿等典型植物样品共计12份,测定Cr、Cu、Zn、Ni、As含量,并计算各植物样品的富集系数和转移系数,对植物富集特性进行综合评价。结果发现：距尾渣堆0~10 m范围内,Cu为重度污染,Zn为轻度污染。0~30 cm土壤剖面Cu和Zn含量表明,二者平均含量表现出20~30 cm>0~10 cm>10~20 cm的趋势。茵陈蒿对Cu、Zn的富集能力较强,可作为植物修复Cu、Zn污染的选择。
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| 关 键 词： | 尾矿渣 重金属污染 植物修复 富集 转移 |
| 收稿时间： | 2017/5/23 0:00:00 |
| 修稿时间： | 2017/12/11 0:00:00 |
Research on Soil Pollution Assessment and Plant Investigation in Gold Mine Area |
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| LU Nan,LI Gang and ZHU Daiwen.Research on Soil Pollution Assessment and Plant Investigation in Gold Mine Area[J].China Mining Magazine,2018,27(5). |
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| Authors: | LU Nan LI Gang and ZHU Daiwen |
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| Affiliation: | 1. Key Laboratory of Degraded and Unused Land Consolidation Engineering, the Ministry of Land and Resources of China, Xi''an 710075, China; 2. Shaanxi Land Construction Group, Xi''an 710075, China; 3. Shaanxi Provincial Land Construction Engineering Technology Research Center, Xi''an 710075, China; 4. Institute of Land Engineering and Technology, Shaanxi Provincial Land Engineering Construction Group, Xi''an 710075, China,1. Key Laboratory of Degraded and Unused Land Consolidation Engineering, the Ministry of Land and Resources of China, Xi''an 710075, China; 2. Shaanxi Land Construction Group, Xi''an 710075, China; 3. Shaanxi Provincial Land Construction Engineering Technology Research Center, Xi''an 710075, China; 4. Institute of Land Engineering and Technology, Shaanxi Provincial Land Engineering Construction Group, Xi''an 710075, China,1. Key Laboratory of Degraded and Unused Land Consolidation Engineering, the Ministry of Land and Resources of China, Xi''an 710075, China; 2. Shaanxi Land Construction Group, Xi''an 710075, China; 3. Shaanxi Provincial Land Construction Engineering Technology Research Center, Xi''an 710075, China; 4. Institute of Land Engineering and Technology, Shaanxi Provincial Land Engineering Construction Group, Xi''an 710075, China |
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| Abstract: | 36 soil samples in tailings points and surrounding soil were collected to study the XiaoQinLing Gold ore tailing slag. The heavy metal (Cr, Cu, Zn, Ni and As) pollution degree and its correlation was analyzed in different soil sampling points and profile. Also, a total of 12 typical plant samples such as reed, peanuts and artemisia capillaris were collected to measure the concentration of Cr, Cu, Zn, Ni and As. The plant bioaccumulation characteristics were assessed comprehensively by calculating heavy metal elements bioaccumulation coefficient and its transfer coefficient of plant samples. It was found that the main pollutants was Cu and Zn in the 0 to 10cm range of tailings slag and the Cu pollution was more serious, compared to the Zn pollution. For Cu and zinc content analysis in 0-30 cm soil profile, it was found that the average content of Cu and Zn showed a trend of 20 - 30 cm> 0-10 cm> 10 -20 cm. The artemisia capillaris bioaccumulation and transfer cability to Cu and Zn were strong, which could be used as Cu and Zn soil pollution remediation. |
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| Keywords: | Tailing slag Heavy metal pollution Phytoremediation Enrichment Migration |
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