生态与农村环境学报 ›› 2008, Vol. 24 ›› Issue (4): 87-89.doi: CNKI:SUN:NCST.0.2008-04-018

• 研究简报 • 上一篇    下一篇

广东惠州市土壤七氯残留状况及空间分布特征

马瑾, 周永章, 万洪富   

  1. 中山大学地球科学与地球资源研究中心
  • 收稿日期:2008-04-16 出版日期:2008-10-25 发布日期:2011-05-09
  • 作者简介:马瑾(1978-),男,山西洪洞人,讲师,博士生,从事环境地球化学研究。
  • 基金资助:

    国土资源部农业地质与生态地球化学调查项目(121201511216);广东省科技计划项目(2006B70103005)

Residues and Spatial Distribution of Heptachlor in Soils of Huizhou,Guangdong Province

MA  Jin, ZHOU  Yong-Zhang, WAN  Hong-Fu   

  1. Center for Earth Environment and Resources,Sun Yat-sen University
  • Received:2008-04-16 Online:2008-10-25 Published:2011-05-09

摘要: 以广东惠州市为例,通过克里格插值法分析研究区土壤七氯含量的空间分布特征。结果表明,研究区表层土壤七氯平均含量为0.09μg·kg-1,但区域差异很大,最高值达到0.54μg·kg-1。与国内外不同区域比较,惠州市土壤七氯含量相对较低。七氯在土壤剖面中的垂直分布总体上随着土层深度的增加而降低,表层土壤七氯含量具有强烈的空间相关性[C0/(C0+C)=0]。克里格插值结果显示惠州市表层土壤中七氯的高含量区域主要分布在惠东县,在博罗县也有2处岛状高含量区。

关键词: 珠江三角洲, 惠州, 土壤, 七氯, 空间分布, 克里格法

Abstract: Spatial distribution of heptachlor in Huizhou was analyzed through ordinary Kriging interpolation.Results show that the average content of heptachlor in the surface soil of Huizhou was 0.09 μg·kg-1,but varied greatly between regions.Compared to other regions in China and other countries,the content of heptachlor in the soils of Huizhou was relatively lower.In soil profiles,heptachlor contents decreased with increasing of depth.Heptachlor contents in surface soils demonstrate obvious spatial relativity[C0/(C0+C)=0].Results of the ordinary Kriging interpolation show that in Huizhou,high contents of heptachlor are distributed mainly in Huidong County,and in two isle-shaped areas in Boluo County.

Key words: the Pearl River Delta, Huizhou, soil, heptachlor, spatial distribution, Kriging interpolation

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