三峡库区巫山建坪地区土壤镉等重金属分布特征及来源研究
Cadmium and Selected Heavy Metals in Soils of Jianping Area in Wushan County, the Three Gorges Region: Distribution and Source Recognition
查看参考文献29篇
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文摘
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位于三峡库区的巫山建坪地区存在明显土壤高镉(Cd)异常,但对其土壤镉分布特征及来源缺乏深入认识. 通过对岩石及土壤样品中镉等重金属元素的总量、土壤理化性质、典型土壤剖面Cd含量、Cd赋存形态进行分析测试,并结合相关性分析和主成分分析等统计方法,以及不同类型土壤间的对比分析,研究了巫山县建坪地区土壤中镉等重金属的含量分布特征及其来源. 结果表明,岩石(包括煤及煤矸石等)中Cd含量范围为0.22~101 mg·kg~(-1),表层耕作土壤中Cd含量范围为0.42~42 mg·kg~(-1),自然土壤中Cd含量范围为0.12~8.5 mg·kg~(-1); 除Cd外, V、Cr、Ni、Zn同样存在富集现象. 土壤中弱酸提取态镉占其总量的17%~35%. 研究表明,巫山建坪研究区土壤存在严重镉污染问题,土壤中高镉与研究区岩石中镉含量具有很好的地球化学继承性,且表现出表层富集的特征. 研究区土壤中镉等重金属主要为自然地质源,其历史上的煤矿开采加剧了土壤镉的富集过程. 土壤中镉的生物有效态高,通过食物链富集而影响人群健康的环境危害大. |
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其他语种文摘
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Abnormally high cadmium (Cd) concentrations were existed in soils of Jianping area in the Three Gorges region, but little information is available about the geochemical distribution of Cd and source identification. In the present paper, total contents of Cd and other selected heavy metal elements, the characteristics of soil, the contents of Cd in typical soil profiles, and chemical forms of Cd in selected soils were studied. The correlation analysis, the principal component analysis, and the comparison between different soil types were conducted. The concentration distribution of Cd and selected elements in local soils was investigated and their sources were identified. The results showed that Cd in local rocks, coal and coal wastes ranged from 0.22-101 mg·kg~(-1), 0.42-42 mg·kg~(-1) in the arable topsoil, and 0.12-8.5 mg·kg~(-1) in natural soils. The soils were also rich in other elements such as V, Cr, Ni and Zn. The weak acid fraction of Cd accounted for 17%. |
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来源
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环境科学
,2013,34(6):2390-2398 【核心库】
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关键词
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镉
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土壤
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主成分分析
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自然源
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三峡库区
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地址
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1.
中国科学院地球化学研究所, 环境地球化学国家重点实验室, 贵阳, 550002
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重庆巫山县卫生局, 重庆, 404700
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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0250-3301 |
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学科
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环境污染及其防治 |
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基金
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国家自然科学基金项目
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中国科学院知识创新工程重要方向项目
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文献收藏号
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CSCD:4838155
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参考文献 共
29
共2页
|
|
1.
World Health Organization (WHO).
Trace elements in human nutrition and health,1996
|
CSCD被引
3
次
|
|
|
|
|
2.
Satarug S. A global perspective on cadmium pollution and toxicity in non-occupationally exposed population.
Toxicology Letters,2003,137(1/2):65-83
|
CSCD被引
90
次
|
|
|
|
|
3.
成杭新. 长江流域沿江镉异常示踪与追源的战略与战术.
第四纪研究,2005,25(3):285-291
|
CSCD被引
25
次
|
|
|
|
|
4.
杨忠芳. 区域生态地球化学评价思路及建议.
地质通报,2005,24(8):689-696
|
CSCD被引
6
次
|
|
|
|
|
5.
廖启林. 长江下游富镉土壤元素分布特征及其污染修复试验.
中国地质,2008,35(3):514-523
|
CSCD被引
8
次
|
|
|
|
|
6.
Tang J. High cadmium concentrations in areas with endemic fluorosis: A serious hidden toxin?.
Chemosphere,2009,76(3):300-305
|
CSCD被引
6
次
|
|
|
|
|
7.
龚媛媛. 巫山建坪燃煤型氟中毒地区土壤高镉的来源及赋存状态研究.
地球与环境,2009,37(1):37-41
|
CSCD被引
4
次
|
|
|
|
|
8.
Zheng B S. Issues of health and disease relating to coal use in southwestern China.
International Journal of Coal Geology,1999,40(2/3):119-132
|
CSCD被引
54
次
|
|
|
|
|
9.
Zemberyova M. The utilization of modified BCR three-step sequential extraction procedure for the fractionation of Cd, Cr, Cu, Ni, Pb and Zn in soil reference materials of different origins.
Talanta,2006,70(5):973-978
|
CSCD被引
13
次
|
|
|
|
|
10.
Turekian K K. Distribution of the elements in some major units of the earth's crust.
Geological Society of America Bulletin,1961,72(2):172-192
|
CSCD被引
140
次
|
|
|
|
|
11.
Lee J S. Migration and dispersion of trace elements in the rock-soil-plant system in areas underlain by black shales and slates of the Okchon Zone, Korea.
Journal of Geochemical Exploration,1998,65(1):61-78
|
CSCD被引
19
次
|
|
|
|
|
12.
Yu C X. Effect of weathering on abundance and release of potentially toxic elements in soils developed on Lower Cambrian black shales, P. R. China.
Environmental Geochemistry and Health,2012,34(3):375-390
|
CSCD被引
13
次
|
|
|
|
|
13.
迟清华.
应用地球化学元素丰度数据手册,2007:45-55
|
CSCD被引
2
次
|
|
|
|
|
14.
魏复盛. 中国土壤环境背景值研究.
环境科学,1991,12(4):12-19
|
CSCD被引
252
次
|
|
|
|
|
15.
唐将. 三峡库区土壤重金属背景值研究.
中国生态农业学报,2008,16(4):848-852
|
CSCD被引
57
次
|
|
|
|
|
16.
.
GB 15618, 土壤环境质量标准,1995
|
CSCD被引
1
次
|
|
|
|
|
17.
Kurtz A C. Refractory element mobility in volcanic soils.
Geology,2000,28(8):683-686
|
CSCD被引
42
次
|
|
|
|
|
18.
Borgegard S O. Biomass, root penetration and heavy metal uptake in birch in a soil cover over copper tailings.
Journal of Applied Ecology,1989,26(2):585-595
|
CSCD被引
2
次
|
|
|
|
|
19.
林文杰. 黔西土法炼锌区Pb、Zn、Cd地球化学迁移特征.
环境科学,2009,30(7):2065-2070
|
CSCD被引
27
次
|
|
|
|
|
20.
Boruvka L. Principal component analysis as a tool to indicate the origin of potentially toxic elements in soils.
Geoderma,2005,128(3/4):289-300
|
CSCD被引
89
次
|
|
|
|
|
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