| 铜陵矿区土壤重金属元素的空间变异及污染分析 |
| |
| 引用本文： | 白晓宇,袁峰,李湘凌,周涛发,张鑫,陈兴仁,陈永宁,陈富荣,贾十军.铜陵矿区土壤重金属元素的空间变异及污染分析[J].地学前缘,2008,15(5):256. |
| |
| 作者姓名： | 白晓宇 袁峰 李湘凌 周涛发 张鑫 陈兴仁 陈永宁 陈富荣 贾十军 |
| |
| 作者单位： | 1. 合肥工业大学,资源与环境工程学院,安徽,合肥,230009
2. 安徽省地质调查院,安徽,合肥,230009 |
| |
| 基金项目： | 安徽省科技攻关项目,安徽省优秀青年科技基金,中国地质调查局科研项目 |
| |
| 摘 要： | 运用地统计学分析手段对铜陵矿区土壤中的As、Cd、Hg、Pb和Zn5种重金属元素进行空间变异分析及空间插值,并进行污染分析,以期为铜陵矿区土壤环境评价、土壤污染修复及环境决策提供科学依据。数据来源于"安徽省江淮流域多目标区域地球化学调查"结果,采用Johnson变换进行正态转换,地统计拟合变异函数中,As、Cd元素为球状模型,Pb、Zn元素为五球形模型,Hg元素为指数模型。结果表明,As、Cd、Pb、Zn元素的变异函数表现为各向异性,其方向性可能主要受矿床分布控制;Hg元素块金效应较大,表明其受小
|
| 关 键 词： | 土壤 重金属 地统计学 空间变异 铜陵 |
Spatial variance and pollution analysis of soil heavy metals in Tongling mining area, South China |
| |
| Bai Xiaoyu,Yuan Feng,Li Xiangling,Zhou Taofa,Zhang Xin,Chen Xingren,Chen Yongning,Chen Furong,Jia Shijun.Spatial variance and pollution analysis of soil heavy metals in Tongling mining area, South China[J].Earth Science Frontiers,2008,15(5):256. |
| |
| Authors: | Bai Xiaoyu Yuan Feng Li Xiangling Zhou Taofa Zhang Xin Chen Xingren Chen Yongning Chen Furong Jia Shijun |
| |
| Abstract: | The paper interprets the spatial variance structure of As,Cd,Hg,Pb and Zn in soil in the Tongling mining area of China,makes spatial interpolation,and analyzes the pollution by using geostatistical method,expecting to provide insight into risk assessment of environmental pollution,soil remedy and decision making.The dataset of soil element contents is derived from project of "Multi-target Regional Geochemical Survey in Jianghuai Drainage Area in Anhui Province" by Anhui Institute of Geological Survey,China.With normalized datasets that are transformed by Johnson transformation,the variogram models are fitted,in which the As and Cd are spherical,Pb and Zn are pentaspherical,and Hg is exponential.The results show that the variograms of As,Cd,Pb and Zn exhibit anisotropy,which possibly is controlled by the distribution of ore deposits;Hg behaves strong nugget effect,which is influenced by small-scale factors,and the further study should increase the sample density.The As,Cd,Pb and Zn in soil in the Tongling mining area have high pollution hazard,especially the Cd;the Hg has low hazard.The pollution of As results from the copper deposits,the lead-zinc deposits and limonite,and from their exploitation;the pollution of Cd is related to lead-zinc deposits,the exploitation,and agricultural irrigation with waste water;the pollution of Pb and Zn are mostly ascribed to the lead-zinc deposits and related exploitation. |
| |
| Keywords: | soil heavy metal geostatistics spatial variance Tongling |
| 本文献已被 维普 万方数据 等数据库收录！ |
| 点击此处可从《地学前缘》浏览原始摘要信息 |
| 点击此处可从《地学前缘》下载免费的PDF全文 |
|
