| 千岛湖表层沉积物地球化学特征及其成因 |
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| 引用本文： | 张 妍,谷志云.千岛湖表层沉积物地球化学特征及其成因[J].科学技术与工程,2019,19(26):68-74. |
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| 作者姓名： | 张 妍 谷志云 |
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| 作者单位： | 河南省地质调查院河南省地球化学生态修复工程技术研究中心 |
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| 基金项目： | 中国地质调查局项目“浙西南地区1∶25万多目标地球化学调查”(DD20160320-12)。 |
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| 摘 要： | 对千岛湖87件表层沉积物的25项元素(指标)进行含量测定及R型因子分析,探讨了元素(指标)的来源和分布特征。结果表明:千岛湖表层沉积物以低I、Ca O、MgO,高Cd、Hg、N、S、Se、Corg(有机碳)等为特征。在查明表层沉积物地球化学特征的基础上,采用因子分析法对千岛湖表层沉积物地球化学特征的成因进行了详细分析,共提取了6个主成分因子,累积贡献率达到78. 735%;农业生产、工业废物、生物作用及自然作用是影响表层沉积物地球化学特征的成因的主要因子。
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| 收稿时间： | 2019/2/14 0:00:00 |
| 修稿时间： | 2019/6/26 0:00:00 |
Geochemical Characteristics of Surface sediments in Qiandao Lake and Its Contribution Factors |
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| zhangyan and.Geochemical Characteristics of Surface sediments in Qiandao Lake and Its Contribution Factors[J].Science Technology and Engineering,2019,19(26):68-74. |
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| Authors: | zhangyan and |
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| Institution: | Hena Institute of Geological Survey, |
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| Abstract: | The contents of 25 elements (indicators) in 87 surface sediments of Qiandao Lake were determined and R-factor analysis was carried out. The source and distribution characteristics of elements (indicators) were discussed. The results show that the surface sediments of Qiandao Lake are characterized by low I, CaO, MgO and high Cd, Hg, N, S, Se and Corg. On the basis of understanding the geochemical characteristics of surface sediments, the factor analysis method was used to analyze the causes of the geochemical characteristics of surface sediments in Qiandao Lake. Six principal components were extracted, and the cumulative contribution rate reached 78.735%. Agricultural production, industrial waste, biological and natural processes were the main factors affecting the geochemical characteristics of surface sediments. |
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| Keywords: | geochemical characteristics factor analysis surface lake sediments cause analysis Qiandao Lake |
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