天津地区典型土壤剖面饱和烃分布特征及环境意义
Vertical Distribution and Environmental Significance of Saturated Hydrocarbons in Soil Samples Collected from Tianjin
查看参考文献22篇
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文摘
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分析了天津地区不同环境功能区7条土壤剖面中饱和烃含量、组成及部分地球化学参数的变化规律,比较了不同土壤剖面饱和烃在纵向上的变化特征。结果表明,市区(南开区)及近郊区(武清区,北辰区和宁河县交界处)表层土饱和烃含量最高,其他剖面含量较低;随深度增大,饱和烃含量均有所降低,但不同剖面变化幅度不同,表层含量较高的剖面随深度增大,饱和烃含量降低幅度较大,反之则较小。根据部分典型地球化学参数的纵向变化特征,推测表层土壤饱和烃主要为石油源和植物源的混合源,且市区和郊区主要受石油源控制。不同土壤剖面表层土污染源存在差别。同一剖面表层土壤(<30cm)不同层次的样品的饱和烃污染源较为接近;剖面深部(>30cm)不同层次样品中正构烷烃不同于表层,且成因复杂,既受来源于土壤中有机质降解产物的影响,又受表层土中饱和烃纵向迁移作用的影响。对于甾、萜类化合物,表层土壤中饱和烃含量较高的剖面,深层土壤受表层土壤甾、萜类污染物迁移作用的影响;表层土壤中饱和烃含量较低的剖面,深层土壤受表层土壤甾、萜类污染物影响较小. |
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其他语种文摘
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The vertical distribution of both the concentration and composition characteristics of saturated hydrocarbons in soil samples collected from 7 soil profiles in Tianjin has been investigated.The vertical variation patterns of saturated hydrocarbons composition along the soil profiles with different environmental conditions have been discussed.The results showed that the concentrations and chemical compositions of saturated hydrocarbons were significantly different in the surface soil of different locations.The concentrations were higher in the soil samples from suburban area than rural area.Generally,concentrations of saturated hydrocarbons in the upper horizons from 0 to 30cm were much higher than those in the bottom soils where concentrations were constant.The concentration of saturated hydrocarbons changes dramatically along the profile,reaching a higher concentration in the topsoil.The composition changes of normal alkanes,sterane and terpane in soil with the depth were complex.It also reveals that the primary sources of saturated hydrocarbons in the surface soils were from a mixture of petroleum(including diesel,gasoline and their products of uncompleted combustion) and higher plants,and the petroleum is the primary source of the suburban area.The surface soil of different soil profiles had different contamination sources.The different horizons had similar composition characteri-stics,indicating the similar contamination sources.However,in the bottom soils,the composition characteristics and geochemical indices of normal alkanes were significantly distinct.The sources were different with the surface soils and complex for the normal alkanes in the bottom soils,which may be in connection with both the degradation of soil organic matter and the moving down of saturated hydrocarbons in the topsoil.For sterane and terpane in the profiles which had a high concentration of saturated hydrocarbons in the topsoil,the character of sterane and terpane compositions were similar.Accordingly,in the profiles with a high concentration of saturated hydrocarbons in the topsoil,the bottom soil was influenced by down-moving of the terane and terpane from the topsoil. |
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来源
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地理科学进展
,2007,26(6):21-32 【核心库】
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关键词
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天津
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土壤剖面
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饱和烃
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分布特征
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污染源辨析
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地址
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(北京)中国石油大学, 石油天然气成藏机理教育部重点实验室, 北京, 102249
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1007-6301 |
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学科
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自然地理学 |
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基金
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国家自然科学基金
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文献收藏号
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CSCD:3140724
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参考文献 共
22
共2页
|
|
1.
Menzie C A. Exposure to carcinogenic PAHs in the environment.
Environment Science and Technology,1992,26:1278-1284
|
被引
185
次
|
|
|
|
|
2.
Rogers K M. Detection of petroleum contamination in river sediments from Quebec City region using GCRMS.
Organic Geochemistry,1999,30:1559-1569
|
被引
5
次
|
|
|
|
|
3.
Simoneit B R T. Organic matter of the troposphere-Ⅱ.
Atmosphere Environment,1982,16:2139-2159
|
被引
37
次
|
|
|
|
|
4.
Colombo J C. Determination of hydrocarbon sources using n-alkane and polycyclic aromatic hydrocarbon distribution indexes.
Environment Science and Technology,1989,23:888-894
|
被引
40
次
|
|
|
|
|
5.
彭林. 兰州市大气飘尘中可溶有机质的生物标志物及其来源.
太原理工大学学报,1999,30(3):264-266
|
被引
9
次
|
|
|
|
|
6.
Fry B. δ13C measurements as indicators of carbon in marine and freshwater ecosystems.
Contributions in Marine Science,1984,27:17-47
|
被引
2
次
|
|
|
|
|
7.
Uzaki M. Carbon isotope evidence for oil-pollution in long chain normal alkanes in Tokyo Bay sediments.
Geochemical Journal,1993,27:385-389
|
被引
5
次
|
|
|
|
|
8.
Ishiwatari R. Carbon isotope composition of individual n-alkanes in recent sediments.
Organic Geochemistry,1994,21:801-808
|
被引
5
次
|
|
|
|
|
9.
康跃惠. 珠江澳门河口沉积物柱样品正构烷烃研究.
地球化学,2000,29(3):302-310
|
被引
34
次
|
|
|
|
|
10.
彭林. 利用正构烷单分子碳同位素组成对兰州大气污染的探讨.
沉积学报,1998,16(4):159-162
|
被引
10
次
|
|
|
|
|
11.
叶必雄. 天津地区表层土壤多环芳烃类污染物污染源辨析.
地理科学进展,2005,24(5):61-69
|
被引
6
次
|
|
|
|
|
12.
张枝焕. 天津地区主要河流表层沉积物中饱和烃的组成与分布特征.
地球化学,2004,33(3):291-300
|
被引
16
次
|
|
|
|
|
13.
郎庆勇. 大气有机污染分析和评价Ⅱ.
岩矿测试,1995,14(4):274-280
|
被引
3
次
|
|
|
|
|
14.
张枝焕. 天津表层土中饱和烃污染物的组成及分布特征.
中国环境科学,2003,23(6):602-605
|
被引
13
次
|
|
|
|
|
15.
王培荣.
生物标志物质量色谱图集,1993:59-100
|
被引
9
次
|
|
|
|
|
16.
张枝焕. 土壤和沉积物中烃类污染物的主要来源与识别标志.
土壤通报,2004,35(6):793-798
|
被引
22
次
|
|
|
|
|
17.
Fernando N N. Aliphatic and aromatic hydrocarbons in sediments of Santos and Cananéia SP Brazil.
Marine Pollution Bulletin,2001,42(11):1064-1072
|
被引
1
次
|
|
|
|
|
18.
周家斌. 北京地区大气颗粒物中正构烷烃的粒径分布及污染源示踪研究.
石油大学学报(自然科学版),2004,28(5):121-126
|
被引
16
次
|
|
|
|
|
19.
Alves C. Composition of extractable organic matter of air particles from rural and urban Portuguese areas.
Atmospheric Environment,2001,35(32):5485-5496
|
被引
17
次
|
|
|
|
|
20.
卢冰. 北极沉积物中正构烷烃的组合特征及古沉积环境的研究.
海洋学报,2002,24(6):34-48
|
被引
12
次
|
|
|
|
|
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