| 乌鲁木齐市米东区农田土壤汞含量及空间分布特征 |
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| 引用本文： | 于洪,王灵,钱翌.乌鲁木齐市米东区农田土壤汞含量及空间分布特征[J].新疆农业大学学报,2011(5):427-430. |
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| 作者姓名： | 于洪 王灵 钱翌 |
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| 作者单位： | 新疆农业大学草业与环境学院;乌鲁木齐市环境监测中心站;青岛科技大学环境与安全工程学院; |
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| 基金项目： | 国家自然科学基金项目(40601062); 新疆教育厅高校科研重点项目(XJEDU2005I08) |
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| 摘 要： | 利用地理信息系统(GIS)及地统计学方法,对米东区农田土壤Hg含量进行空间变异特征分析.结果表明:米东区土壤Hg含量范围为0.05～0.28 mg/kg,平均值为0.11 mg/kg,未超过《国家土壤环境质量标准》(GB156182-1995)二级标准限值,是乌鲁木齐市农田土壤背景值的2倍；土壤Hg具有较好的空间变异结...
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| 关 键 词： | 汞 空间分布 地统计学 乌鲁木齐 |
The Characteristics of Spatial Distribution of Hg Content in the Farm Lands in Midong District of Urumqi City |
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| YU Hong,,WANG Ling,QIAN Yi.The Characteristics of Spatial Distribution of Hg Content in the Farm Lands in Midong District of Urumqi City[J].Journal of Xinjiang Agricultural University,2011(5):427-430. |
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| Authors: | YU Hong WANG Ling QIAN Yi |
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| Institution: | YU Hong1,2,3,WANG Ling2,QIAN Yi3(1.College of Pratacultural and Environmental Sciences,Xinjiang Agricultural University,Urumqi 830052,China,2.Environmental Monitoring Central Station of Urumqi,Urumqi 830000,3.School of Environmental and Safety Engineering,Qingdao University of Science and Technology,Qingdao 266042,China) |
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| Abstract: | Geographical information system（GIS）combined with Geostatistics was applied to determine the spatial distribution of heavy metal Hg contents in the farmlands from Midong of urumqi.The results showed that： The soil Hg content was in the range of 0.05~0.28 mg/kg,and the average content of soil Hg was 0.11 mg/kg,and it is below the GradeⅡstandard of the National Environmental Quality Standard of two for Soil（GB15618-1995）;and it is two times of Urumqi city agricultural farmland soil background values.Soil Hg has better spatial variance structure,which conformed with the spherical model.The range of soil Hg was smaller（0.205 km）,the base coefficient was 50%,belong to moderate spatial autocorrelation which showed that spatial variation in the study area were affected by the impact both of structural factors（soil parent material,topography,and so on） and by random factors（such as irrigation,fertilization and tillage practices）.The Hg content in soil in the study area was low in the middle part and high in both sides. |
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| Keywords: | Hg spatial distribution geostatistics Urumqi |
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