【引用本文】 高娟琴, 于扬, 王登红, 等. 川西甲基卡锂资源富集区根系土壤重金属含量水平及时空分布特征[J]. 岩矿测试, 2019, 38(6): 681-692. doi: 10.15898/j.cnki.11-2131/td.201812190137
GAO Juan-qin , YU Yang , WANG Deng-hong , et al. The Content and Distribution Characteristics of Heavy Metals in Root Soils in the Jiajika Lithium Resource Area, Western Sichuan Province[J]. Rock and Mineral Analysis, 2019, 38(6): 681-692. doi: 10.15898/j.cnki.11-2131/td.201812190137

川西甲基卡锂资源富集区根系土壤重金属含量水平及时空分布特征

1. 中国地质大学(北京)地球科学与资源学院, 北京 100083;

2. 自然资源部成矿作用与资源评价国家重点实验室, 中国地质科学院矿产资源研究所, 北京 100037;

3. 四川省地质矿产勘查开发局地质矿产科学研究所, 四川 成都 610036;

4. 四川省地质调查院, 四川 成都 610081

收稿日期: 2018-12-19  修回日期: 2019-07-01 

基金项目: 中国地质调查局地质调查项目(DD20190173)

作者简介: 高娟琴,博士研究生,地球化学专业。E-mail:gaojuanqinmail@sina.com。。

通信作者:

The Content and Distribution Characteristics of Heavy Metals in Root Soils in the Jiajika Lithium Resource Area, Western Sichuan Province

1. School of Earth Sciences and Resources, China University of Geosciences(Beijing), Beijing 100083, China;

2. Key Laboratory of Metallogeny and Mineral Assessment, Ministry of Natural Resources;Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing 100037, China;

3. Geology and Mineral Resources Scientific Institute, Sichuan Exploration Bureau of Geology and Mineral Resources, Chengdu 610036, China;

4. Sichuan Institute of Geological Survey, Chengdu 610081, China

Corresponding author: YU Yang , 主要从事地球化学研究。yuyang_cags@sina.com。

Received Date: 2018-12-19
Revised Date: 2019-07-01

摘要:锂能源金属的战略地位不断提高,与锂矿床及锂金属相关的研究也在不断跟进,锂矿区土壤重金属污染近年来持续受到关注,其含量分布情况值得深入研究。本文对亚洲最大的锂矿区——川西甲基卡根系土壤环境进行重金属含量监测,调查和评价锂矿区土壤重金属含量水平及其安全性。2016~2018年于川西甲基卡锂资源富集区采集根系土壤样品68件,采用ICP-MS法测定根系土壤Cd、As、Pb、Cr、Cu、Ni、Zn含量。测试结果表明,甲基卡矿区根系土壤Cd、As、Pb、Cr、Cu、Ni、Zn含量平均值分别为0.13、15.31、25.47、60.57、16.12、23.59、66.83mg/kg,与2018年8月最新颁布的农用地土壤标准对比,无一超标,均低于风险筛选值及管制值。常见矿床的尾矿库区土壤常存在严重的重金属污染,甲基卡尾矿库土壤重金属含量均低于环境标准限值,且矿业活动停止的三年期间尾矿库区根系土壤中Cd、As、Cr含量明显呈逐年下降趋势。本研究认为,选矿厂房及尾矿库周边根系土壤重金属由于人为源的存在有一定的富集现象,但不构成危害,废弃物对环境污染小。

关键词: 甲基卡, 锂资源富集区, 根系土壤, 重金属, 污染水平, 时空分布特征, 电感耦合等离子体质谱法

The Content and Distribution Characteristics of Heavy Metals in Root Soils in the Jiajika Lithium Resource Area, Western Sichuan Province

KEY WORDS: Jiajika, lithium-bearing area, root soil, heavy metals, pollution level, temporal and spatial distribution, inductively couple plasma-mass spectrometry

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川西甲基卡锂资源富集区根系土壤重金属含量水平及时空分布特征

高娟琴, 于扬, 王登红, 刘丽君, 王伟, 郝雪峰, 代鸿章