| 成都经济区绵阳市部分县(区)土壤有机氯农药剖面分布特征 |
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| 引用本文： | 李杰,祁士华,王向琴,邢新丽,刘应平.成都经济区绵阳市部分县(区)土壤有机氯农药剖面分布特征[J].四川环境,2008,27(3). |
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| 作者姓名： | 李杰 祁士华 王向琴 邢新丽 刘应平 |
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| 作者单位： | 1. 中国地质大学生物地质与环境地质教育部重点实验室,武汉,430074
2. 四川省地质调查院,成都,610031 |
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| 基金项目： | 四川省成都经济区区域土壤有机地球化学(有机氯农药)调查(2006040007) |
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| 摘 要： | 应用GC-ECD的方法,研究了绵阳市典型土壤垂直剖面中有机氯农药的纵向分布特征。结果表明:表层土壤(0~20 cm)中,游仙区耕田区HCH含量最高,其次是三台县耕田区,江油市。表层土壤(0~5 cm)中,三台县DDT含量明显高于其他区域同一层段的含量。表层土壤(5~20 cm)中,游仙区耕田区DDT含量最高,其次是三台县耕田区,江油市。有机氯农药的残留量在土壤剖面的纵向分布总体上是随着土壤剖面的加深而降低。HCH的4个异构体的残留量与工业组成相比较有显著差异。总体来说在三个土壤柱中,γ-HCH的质量分数最高,而δ-HCH的最低。p,p′-DDT/p,p-′DDE的平均值分别为:0.14,0.03,0.59。表明江油市和游仙区目前土壤中检测到的只是过去使用后的残留物。三台县有新的DDT输入。
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| 关 键 词： | 成都 有机氯农药 土壤 纵向分布 |
Vertical Distribution of Organochlorine Pesticides in Soils in Mianyang City |
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| LI Jie,QI Shi-hua,WANG Xiang-qin,XING Xin-li,LIU Ying-ping.Vertical Distribution of Organochlorine Pesticides in Soils in Mianyang City[J].Sichuan Environment,2008,27(3). |
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| Authors: | LI Jie QI Shi-hua WANG Xiang-qin XING Xin-li LIU Ying-ping |
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| Institution: | 1.Key Laboratory of Bio-geology & Environmental Geology; Ministry of Education; China University of Geosciences; Wuhan 430074; China; 2.Sichuan Province Geological Survey; Chengdu 610031; China); |
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| Abstract: | The vertical distribution of organochlorine pesticides in soils in the area of Mianyang City was studied using GC-ECD.The results showed that in the surface soils with 0~20 cm depth,the highest concentration of HCH was observed in the farming land of Youxian District,followed by Santai County and Jiangyou City.In the surface soils with 0~5 cm depth,the concentration of DDT in Santai County was significantly higher than that in other regions else.In the surface soils with 5~20 cm depth,the highest concentrat... |
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| Keywords: | Chengdu organochlorine pesticides soil vertical distribution |
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