农业环境科学学报Issue(4)：695-701,7.DOI:10.11654/jaes.2014.04.011
西安城郊土壤中正构烷烃的分布、来源及其影响因素
Distribution, Sources and Affecting Factors of Normal Alkanes in Soils of Xi'an Outskirts
摘要
Abstract
Normal(n)-alkanes in the environment may come from uses of petroleum and natural gas. In this study, contents of n-ankanes in thirty-seven topsoil and thirty-seven groundwater samples, collected from typical vegetable fields in the outskirts of Xiˊan city, were ana-lyzed using gas chromatograph with mass selective detection(GC/MS). Total n-alkane concentrations in the soils varied from 1.06 to 4.01μg·g-1. N-alkanes with odd C number were predominant in most soil samples. No significant differences were found between different areas. Total n-alkane concentrations in the groundwater samples ranged from 9.2 to 99.35 μg·L-1. Compared to other regions, n-alkane concentra-tions in soil and groundwater were higher in the outskirts of Xiˊan city. Sources of n-alkanes in soils of this region were mainly terrestrial higher plants, especially herbaceous plants. There was positive correlation between the concentrations of n-alkanes and soil properties such as organic matter, moisture content, C/N and C/P. Organic matter and moisture content determined the distribution of n-alkanes in soil.关键词
表层土壤/地下水/正构烷烃/土壤理化性质/来源Key words
topsoil/groundwater/n-alkanes/soil properties/source分类
资源环境引用本文复制引用
王文岩,张娟,王林权,侯红,李发生,李雪芳..西安城郊土壤中正构烷烃的分布、来源及其影响因素[J].农业环境科学学报,2014,(4):695-701,7.基金项目
国家自然科学基金（41271388，151233）；国家重大科学仪器设备开发专项 （）
