河北省麻山药种植区土壤重金属元素空间分布特征
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国土资源部及农业厅河北省农业地质调查项目"保定典型矿山生态环境演变与恢复技术研究"(200040007-3-5)


Spatial Variation of Heavy Mentals in Dioscorea Opposita Thunb. Planted Areas of Hebei Province
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    摘要:

    [目的] 明确河北省麻山药种植区土壤重金属的空间分布特征以及土壤性状、社会经济因素对土壤重金属含量的影响。[方法] 在研究区内通过网格法均匀分布取样获取土壤样本,室内试验得到样本的各元素含量;结合SPSS和ArcGIS 9.3软件的数据相关性、地统计学、空间分析等方法进行分析研究。[结果] 从相关系数来看,除Cr以外,其他4种重金属在研究区内均呈现正相关关系;土壤数据中Cr,Pb,As服从正态分布,Cd,Hg经对数转换后服从正态分布;通过元素的块金效应分析发现,元素Hg在研究区的空间相关性最弱。[结论] 河北省麻山药种植区土壤重金属含量与母质、土壤质地、有机质含量以及工业化、城市化和农村集约化程度密切相关。

    Abstract:

    [Objective] To understand the spatial distribution of heavy metal concentrations in Dioscorea opposita Thunb. planted soils and the influences of soil properties and socio-economic factors on the heavy metal concentrations in order to selecte the priority areas for the D. opposita Thunb. platation.[Methods] Soil samples were collected using the grid sampling method, and the element concentrations were tested in laboratory, then the relationships of data was analyzed with geostatistics and spatial analysis methods in SPSS and ArcGIS 9.3.[Results] The four elements, except for Cr, showed a positive correlation with each other; Cr, Pb and As followed a normal distribution in the soil data and Cd, Hg followed a normal distribution after logarithmic conversion; Hg showed little spatial correlation according to the nugget effect analysis.[Conclusion] The heavy metal concentrations in the D. opposita Thunb. soils in Hebei Province were closely related to their parent material, soil texture, and organic matter contents and the degree of industrialization, urbanization and agricultural intensities of a city.

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未红红,杨浩然,刘会玲,张毅功.河北省麻山药种植区土壤重金属元素空间分布特征[J].水土保持通报,2015,35(5):227-231

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  • 收稿日期:2014-05-08
  • 最后修改日期:2014-08-12
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  • 在线发布日期: 2016-04-05
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