| 灵宝市金矿选冶区土壤汞的地统计分析及污染评价 |
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| 引用本文： | 刘应然,孙雨,徐建红,陈娟.灵宝市金矿选冶区土壤汞的地统计分析及污染评价[J].中国环境监测,2016,32(2):71-76. |
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| 作者姓名： | 刘应然 孙雨 徐建红 陈娟 |
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| 作者单位： | 中国地质大学(武汉)工程学院, 湖北 武汉 430074;河南省地矿局第四地质勘查院, 河南 郑州 450001,中国地质大学(武汉)材料与化学学院, 湖北 武汉 430074,河南省地矿局第四地质勘查院, 河南 郑州 450001,河南省地矿局第四地质勘查院, 河南 郑州 450001 |
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| 基金项目： | 河南省地质矿产勘查开发局地质环境科研项目(2012013) |
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| 摘 要： | 利用数理统计、地统计方法和地理信息系统(GIS)技术研究了灵宝市的金矿选冶区土壤汞的空间分布特性和污染程度评价。Hg和Cu、Zn、Pb、Cd重金属元素存在较大的偏度和峰度,为了使这些元素的数据服从正态分布并降低其偏度和峰度,采用了Box-Cox变换。地统计分析认为研究区内土壤Hg元素具有空间结构特性。用普通克里格插值绘制的研究区Hg含量地球化学图体现了其空间分布特征。结合地累积指数法评价指标得出的研究区Hg污染等级分布图为土壤恢复治理提供了一定科学依据。
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| 关 键 词： | 土壤 重金属污染 地统计 地理信息系统 |
| 收稿时间： | 2015/3/27 0:00:00 |
| 修稿时间： | 2015/4/14 0:00:00 |
Geostatistical Analysis and Pollution Assessment on Soil Mercury in Gold Mining and Smelting Areas, Lingbao City |
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| LIU Yingran,SUN Yu,XU Jianhong and CHEN Juan.Geostatistical Analysis and Pollution Assessment on Soil Mercury in Gold Mining and Smelting Areas, Lingbao City[J].Environmental Monitoring in China,2016,32(2):71-76. |
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| Authors: | LIU Yingran SUN Yu XU Jianhong and CHEN Juan |
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| Institution: | Faculty of engineering, China university of geosciences(Wuhan), Wuhan 430074, China;The Forth Geological Exploration Institute of Henan Geology and Mineral Bureau, Zhengzhou 450001, China,Faculty of Materials Science and Chemistry, China University of Geosciences(Wuhan), Wuhan 430074, China,The Forth Geological Exploration Institute of Henan Geology and Mineral Bureau, Zhengzhou 450001, China and The Forth Geological Exploration Institute of Henan Geology and Mineral Bureau, Zhengzhou 450001, China |
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| Abstract: | Spatial distribution and assessment of pollution level of soil mercury (Hg) in the gold mining and smelting areas, Lingbao city, Henan province, were investigated using statistics, geostatistics and geographic information system (GIS) techniques. The larger skewness and kurtosis were observed in data of Hg, Cu, Zn, Pb and Cd heavy metals. Box-Cox transformation was applied to achieve normality and to reduce the skewness and kurtosis. Spatial structural characteristics belong to soil mercury (Hg) element by geostatistical analysis.Geochemical map of soil mercury (Hg) content were drawn by ordinary kriging interpolation to study whose spatial distribution characteristics. The map of contaminative hazard class of soil mercury provided the scientific basis to restoration and control with cumulative index evaluation index. |
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| Keywords: | soil heavy metal pollution geostatistics GIS |
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