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| 典型热带林地土壤团聚体颗粒中重金属的分布特征及其环境意义 | |
| 引用本文： | 龚仓,徐殿斗,成杭新,任雅阁,刘志明,刘应汉,刘飞,聂海峰,郑祥,马玲玲.典型热带林地土壤团聚体颗粒中重金属的分布特征及其环境意义[J].环境科学,2013,34(3):1094-1100. |
| 作者姓名： | 龚仓 徐殿斗 成杭新 任雅阁 刘志明 刘应汉 刘飞 聂海峰 郑祥 马玲玲 |
| 作者单位： | 1. 中国科学院高能物理研究所核分析技术重点实验室,北京 100049;成都理工大学材料与化学化工学院,成都610059 2. 中国科学院高能物理研究所核分析技术重点实验室,北京,100049 3. 中国地质科学院地球物理与地球化学勘查研究所地球表层碳-汞地球化学循环重点实验室,廊坊,065000 4. 中国科学院高能物理研究所核分析技术重点实验室,北京 100049;北京化工大学化学工程学院,北京 100029 5. 北京化工大学化学工程学院,北京,100029 6. 中国人民大学环境学院,北京,100872 |
| 基金项目： | 中国地质调查局专项(1212011087123);国土资源部行业基金项目(200911020);国家自然科学基金项目(11075171,10905061) |
| 摘 要： | 以海口、琼海和屯昌的典型热带林地土壤为研究对象,采用干筛法获得6个粒级的土壤团聚体颗粒组.用ICP-MS测定了本土和不同团聚体颗粒中重金属Cr、Ni、Cu、Zn、Cd、As和Pb的含量,并对其分布特征及对有机碳和铁的响应进行了解析.研究表明,重金属在土壤各粒径团聚体颗粒组中差异性分布,随着团聚体粒径的减小而呈现富集增大的趋势,其中Cr、Ni、Cu、Zn、Cd和Cd主要富集在粉-黏团聚体(<53μm)颗粒中;As主要赋存在53～1 000μm的颗粒组中.总体来讲,微团聚体(<250μm)对土壤重金属含量贡献为14.38%～65.04%,其中粉粒级团聚体(<53μm)的贡献为2.61%～32.01%.有机碳和铁氧化物含量随着团聚体粒径减小而升高,并与除了As及海口的Cd和Pb以外的其他重金属分布具有显著相关性. |
| 关 键 词： | 重金属 团聚体颗粒组 有机碳 林地 分布特征 |
| 收稿时间： | 6/6/2012 12:00:00 AM |
| 修稿时间： | 9/4/2012 12:00:00 AM |
Distribution Characteristics and Environmental Significance of Heavy Metals in Soil Particle Size Fractions from Tropical Forests in China |
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| GONG Cang,XU Dian-dou,CHENG Hang-xin,REN Ya-ge,LIU Zhi-ming,LIU Ying-han,LIU Fei,NIE Hai-feng,ZHENG Xiang and MA Ling-ling.Distribution Characteristics and Environmental Significance of Heavy Metals in Soil Particle Size Fractions from Tropical Forests in China[J].Chinese Journal of Environmental Science,2013,34(3):1094-1100. | |
| Authors: | GONG Cang XU Dian-dou CHENG Hang-xin REN Ya-ge LIU Zhi-ming LIU Ying-han LIU Fei NIE Hai-feng ZHENG Xiang and MA Ling-ling |
| Institution: | Key Laboratory of Nuclear Analytical Techniques,Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China;College of Materials and Chemistry and Chemical Engineering, Chengdu University of Technology,Chengdu 610059,China;Key Laboratory of Nuclear Analytical Techniques,Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China;Key Laboratory of Geochemical Cycling of Carbon and Mercury in the Earth's Critical Zone, Institute of Geophysical & Geochemical Exploration,Chinese Academy of Geological Sciences,Langfang 065000,China;Key Laboratory of Nuclear Analytical Techniques,Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China;College of Chemical Engineering, Beijing University of Chemical Technology,Beijing 100029,China;College of Chemical Engineering, Beijing University of Chemical Technology,Beijing 100029,China;Key Laboratory of Geochemical Cycling of Carbon and Mercury in the Earth's Critical Zone, Institute of Geophysical & Geochemical Exploration,Chinese Academy of Geological Sciences,Langfang 065000,China;Key Laboratory of Geochemical Cycling of Carbon and Mercury in the Earth's Critical Zone, Institute of Geophysical & Geochemical Exploration,Chinese Academy of Geological Sciences,Langfang 065000,China;Key Laboratory of Geochemical Cycling of Carbon and Mercury in the Earth's Critical Zone, Institute of Geophysical & Geochemical Exploration,Chinese Academy of Geological Sciences,Langfang 065000,China;School of Environment and Natural Resources,Renmin University of China,Beijing 100872,China;Key Laboratory of Nuclear Analytical Techniques,Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China |
| Abstract: | |
| Keywords: | heavy metal particle size fractions organic carbon forest soil distribution characteristics |
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