农业环境科学学报2016，Vol.35Issue(11)：2131-2136,6.DOI:10.11654/jaes.2016-0754
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
Distribution characteristics and source apportionment of HCHs in surface soil in Inner Mongolia Irrigation Area of Yellow River in Tumochuan
摘要
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.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Key words
Dengkou pumping irrigation area/Minzutuanjie irrigation area/surface soil/HCHs/distribution characteristics/source analysis分类
资源环境引用本文复制引用
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):2131-2136,6.基金项目
国家自然科学基金资助项目 （）
