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地球科学进展  2008, Vol. 23 Issue (6): 580-589    DOI: 10.11867/j.issn.1001-8166.2008.06.0580
研究论文     
北京地区典型土壤剖面分子标志物分布特征
彭旭阳,张枝焕,何奉朋,高丹丹,卢松
中国石油大学油气资源与探测国家重点实验室,北京 102249
Vertical Distribution Characteristics and Composition of in Soil Profiles of Beijing
Peng Xuyang,Zhang Zhihuan,He Fengpeng,Gao Dandan,Lu Song
State Key Laboratory of Petroleum Resource and Prospecting, China University of Petroleum, Beijing 102249,China
 全文: PDF(3971 KB)  
摘要:

对北京地区具代表性的环境功能区土壤剖面中的藿烷、甾烷、芳香甾烷类分子标志物含量及组成变化进行了分析。在10个土壤剖面中都检测到了不同浓度的藿烷与甾烷系列化合物,其中水稻田(B9)和城区绿地(B7)这些化合物的含量最高,在农田(B6、B9)和城区绿地(B7)表层土壤中还检测到了少量的三芳甾烷。土壤剖面中藿烷和甾烷含量随深度的增大而降低,在表层30 cm深度范围内的变化较大,30 cm以下其含量波动甚微,但不同深度土层中藿烷和甾烷化合物的指纹特征相近。表明表层土壤均不同程度受到了化石燃料及其衍生物的影响,并且土壤剖面不同深度土壤中藿烷和甾烷具有相关性,受石油类燃烧污染源的影响较大,煤燃烧污染影响的比重相对较小,而且深部土壤的藿烷与甾烷主要来源于表层土壤。

关键词: 土壤剖面藿烷甾烷芳香甾烷北京    
Abstract:

Base on the measured results of the such as hopanes, steranes and aromatic steranes in 10 soil profile samples collected from various environment domains in Beijing, the chemical composition, distribution and pollution sources in the soil profiles were investigated. Different concentration of hopanes and steranes are detected in all soil profiles, with lawn in city area and rice seeding bed in Changping having the highest content, where triaromatic steroid hydrocarbons were also detected. Concentrations changes of hopanes and steranes in each profile showed similar trend with depth, declined rapidly down to 30 cm and trend consistent in the deep part(>30 cm),and their fingerprint chromatogram are similar in different deep soils. The content of hopanes has with steranes in Beijing soil profiles, and they are mainly affected by oil combustion whereas coal combustion takes a smaller proportion. Hopanes and steranes in deep soil mainly come from the surface, and atmospheric particulates may have great impact.

Key words: Soil profile    Hopanes    Steranes    Aromatic steranes    Beijing.
收稿日期: 2007-11-20 出版日期: 2008-06-10
:  S153.16  
基金资助:

国家自然科学基金项目“京津地区典型土壤剖面烃类污染物纵向分布特征与成因机理”(编号:40473045)资助.

通讯作者: 彭旭阳     E-mail: qingqing.peng@163.com
作者简介: 彭旭阳(1983-),女,满族,河北承德人,在读硕士研究生,主要从事环境地球化学研究.E-mail:qingqing.peng@163.com
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引用本文:

彭旭阳,张枝焕,何奉朋,高丹丹,卢松. 北京地区典型土壤剖面分子标志物分布特征[J]. 地球科学进展, 2008, 23(6): 580-589.

Peng Xuyang,Zhang Zhihuan,He Fengpeng,Gao Dandan,Lu Song . Vertical Distribution Characteristics and Composition of in Soil Profiles of Beijing. Advances in Earth Science, 2008, 23(6): 580-589.

链接本文:

http://www.adearth.ac.cn/CN/10.11867/j.issn.1001-8166.2008.06.0580        http://www.adearth.ac.cn/CN/Y2008/V23/I6/580

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