| 内蒙古土默川黄灌区表层土壤中HCHs的分布特征及来源解析 |
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| 引用本文： | 王晶,裴国霞,郝拉柱,张琦,高丽惠.内蒙古土默川黄灌区表层土壤中HCHs的分布特征及来源解析[J].农业环境科学学报,2016,35(11):2131-2136. |
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| 作者姓名： | 王晶 裴国霞 郝拉柱 张琦 高丽惠 |
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| 作者单位： | 1. 内蒙古农业大学水利与土木建筑工程学院,呼和浩特,010018;2. 内蒙古农业大学职业技术学院,土默特右旗,014109 |
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| 基金项目： | 国家自然科学基金资助项目(51469023，51169018，51369021) |
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| 摘 要： | 选取土默川黄灌区镫口扬水灌区与民族团结灌区为研究区域,采用GC-ECD分析表层土壤样品中HCHs的含量。结果表明,HCHs总含量在ND~32.51 ng·g~(-1)之间,平均浓度为7.2 ng·g~(-1)。δ-HCH在4种异构体中占主要成分,平均值为3.69 ng·g~(-1),且平均值含量顺序为δ-HCHγ-HCHβ-HCHα-HCH。总体来说,土默川镫口扬水灌区与民族团结灌区表层土壤中HCHs残留水平处于较低水平。采用反距离加权法对HCHs在研究区的空间分布进行分析可知,基本呈东西走向,水平分布上东部要略高于西部,向南北两侧分别呈递增趋势。此外,分析探讨了不同影响因素下HCHs的分布特征,并通过α-HCH/γ-HCH的比值对HCHs进行来源分析,其比值介于0.15~1.59之间,表明土默川镫口扬水灌区与民族团结灌区表层土壤中发生了环境变化,且一小部分土样中α-HCH/γ-HCH比值接近于1,说明本地区有新的γ-HCH输入。
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| 关 键 词： | 镫口扬水灌区 民族团结灌区 表层土壤 六六六 分布特征 来源分析 |
| 收稿时间： | 6/2/2016 12:00:00 AM |
Distribution characteristics and source apportionment of HCHs in surface soil in Inner Mongolia Irrigation Area of Yellow River in Tumochuan |
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| WANG Jing,PEI Guo-xi,HAO La-zhu,ZHANG Qi and GAO Li-hui.Distribution characteristics and source apportionment of HCHs in surface soil in Inner Mongolia Irrigation Area of Yellow River in Tumochuan[J].Journal of Agro-Environment Science( J. Agro-Environ. Sci.),2016,35(11):2131-2136. |
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| Authors: | WANG Jing PEI Guo-xi HAO La-zhu ZHANG Qi and GAO Li-hui |
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| Institution: | College of Water Conservancy and Civil Engineering, Inner Mongolia Agriculture University, Hohhot 010018, China,College of Water Conservancy and Civil Engineering, Inner Mongolia Agriculture University, Hohhot 010018, China,Agriculture University Occupation Technical College of Inner Mongolia, Tuyouqi 014109, China,College of Water Conservancy and Civil Engineering, Inner Mongolia Agriculture University, Hohhot 010018, China and College of Water Conservancy and Civil Engineering, Inner Mongolia Agriculture University, Hohhot 010018, China |
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| Abstract: | Selecting Tumochuan Dengkou pumping irrigation area and Minzutuanjie irrigation area as the study area,and analyzing the con-tent o f HCHs in surface soil samples by using GC-ECD method.The results showed that the total content of HCHs was between ND~32.51 ng·g-1, and the average concentration was 7.27 ng·g-1.δ-HCH is the main ingredient in four kinds of isomer, the average concentration was 3.69 ng·g-1, the average concentration in order wasδ-HCH>γ-HCH>β-HCH>α-HCH. Overall, HCHs residue levels in the surface soil of Tumochuan Dengkou pumping irrigation area and Minzutuanjie irrigation area was lower. Secondly, the spatial distribution of HCHs in the study area was analyzed by using the inverse distance weighting method. The basic level in East-West distribution was Eastern slightly high-er than that of the west, to the north and south sides respectively showed increasing trend. Also analyzed and discussed the influence of dif-ferent factors on the distribution characteristics of HCHs. The source of HCHs was analyzed by the ratio ofα-HCH/γ-HCH. Due to its ratio was between 0.15~1.59, which indicates that the environmental changes have taken place in the surface soil of Tumochuan Dengkou pump-ing irrigation area and Minzutuanjie irrigation area, and a small fraction of theα-HCH/γ-HCH ratio in the soil sample is close to 1, which indicates that there is a newγ-HCH input in the local area. |
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| Keywords: | Dengkou pumping irrigation area Minzutuanjie irrigation area surface soil HCHs distribution characteristics source analysis |
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