| 基于土壤学知识的主成分分析判断土壤重金属来源 |
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| 引用本文： | 赵彦锋,郭恒亮,孙志英,史学正,吴克宁. 基于土壤学知识的主成分分析判断土壤重金属来源[J]. 地理科学, 2008, 28(1): 45-50. DOI: 10.13249/j.cnki.sgs.2008.01.45 |
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| 作者姓名： | 赵彦锋 郭恒亮 孙志英 史学正 吴克宁 |
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| 作者单位： | 郑州大学自然资源与生态环境研究所,河南郑州,450001;郑州大学环境与水利学院,河南郑州,450001;中国科学院南京土壤研究所土壤与农业可持续发展国家重点实验室,江苏南京,210008;中国地质大学,土地科学技术系,北京,100083 |
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| 基金项目： | 欧盟资助项目，国家自然科学基金，中国科学院知识创新工程项目，河南省教育厅自然科学基金 |
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| 摘 要： | 以无锡城乡交错区和郑州市郊区为例,基于土壤学知识,在主成分分析中综合运用土壤基本理化性质和土壤重金属数据对土壤重金属的主要来源进行分析,讨论不同采样方案对主成分分析结果的影响。结果表明:基于土壤学知识的主成分分析有助于增强对数据分析结果的解释,区分土壤重金属的不同来源,但运用该法时应考虑到采样方案对分析结果的影响。
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| 关 键 词： | 主成分分析 土壤重金属 来源 土壤学知识 |
| 文章编号： | 1000-0690（2008）01-0045-06 |
| 收稿时间： | 2006-12-18 |
| 修稿时间： | 2007-04-21 |
Principle Component Analyses Based on Soil Knowledge as a Tool to Indicate Origin of Heavy Metals in Soils |
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| ZHAO Yan-Feng,GUO Heng-Liang,SUN Zhi-Ying,SHI Xue-Zheng,WU Ke-Ning. Principle Component Analyses Based on Soil Knowledge as a Tool to Indicate Origin of Heavy Metals in Soils[J]. Scientia Geographica Sinica, 2008, 28(1): 45-50. DOI: 10.13249/j.cnki.sgs.2008.01.45 |
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| Authors: | ZHAO Yan-Feng GUO Heng-Liang SUN Zhi-Ying SHI Xue-Zheng WU Ke-Ning |
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| Affiliation: | 1. Institute of Natural Resource and Eco-Environment, Zhengzhou University, Zhengzhou, Henan 450001;2. Institute of Soil Science, Chinese Academy of Sciences, Nanjing, Jiangsu 210008;3. Department of Land Science and Technology, China University of Geoscience, Bejing 100083;4. School of Environment and Water Conservancy, Zhengzhou University, Zhengzhou, Henan 450001 |
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| Abstract: | Fristly,the origin of heavy metals in soils were researched with the aid of Principle Component Analyses(PCA) in Wuxi peri-urban area and in Zhengzhou suburb.In PCA,combined with soil heavy metals,soil basic properties were also utilized based on soil knowledge.Secondly,the results of PCA based on different sampling designs were compared.The results of this paper showed that it was helpful to distinguish the sources of heavy metals in soils using PCA based on soil knowledge.However the errors of PCA caused by unreasonable sampling designs should be noticed. |
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| Keywords: | Principle Component Analyse heavy metals in soil sources soil knowledge |
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