| 天津地表水中有机碳来源的同位素示踪研究 |
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| 引用本文： | 王中良,李军,刘丛强,朱兆洲,李勇.天津地表水中有机碳来源的同位素示踪研究[J].地球与环境,2011,39(1):1-8. |
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| 作者姓名： | 王中良 李军 刘丛强 朱兆洲 李勇 |
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| 作者单位： | 王中良,李军,朱兆洲,李勇,WANG Zhong-Liang,LI Jun,ZHU Zhao-Zhou,LI Yong(天津师范大学天津市水环境与水资源重点实验室,天津,300387);刘丛强,LIU Cong-Qiang(中国科学院地球化学研究所环境地球化学国家重点实验室,贵阳,550002) |
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| 基金项目： | 973 计划前期研究专项，天津市科技计划项目，国家自然科学基金，中科院方向项目 |
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| 摘 要： | 地表水中的有机碳是陆地水生生态系统的核心组分之一,可以反映流域生态环境概况,也是全球生物地球化学循环研究的重要组成部分.本研究通过系统采集天津地区地表水体的水样和水体颗粒物样品,完成了稳定碳同位素及相关组分测定,对天津地表水中的颗粒有机碳和溶解有机碳的来源进行了探讨.研究结果显示,天津地表水体颗粒有机碳的δ13值主要分...
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| 关 键 词： | 地表水 颗粒有机碳 溶解有机碳 来源 碳同位素 |
Using Stable Carbon Isotopes to Identify the Sources of Organic Carbon in Surface Waters of the Tianjin District |
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| WANG Zhong-Liang,LI Jun,LIU Cong-Qiang,ZHU Zhao-Zhou,LI Yong.Using Stable Carbon Isotopes to Identify the Sources of Organic Carbon in Surface Waters of the Tianjin District[J].Earth and Environment,2011,39(1):1-8. |
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| Authors: | WANG Zhong-Liang LI Jun LIU Cong-Qiang ZHU Zhao-Zhou LI Yong |
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| Institution: | WANG Zhong-Liang1,LI Jun1,LIU Cong-Qiang2,ZHU Zhao-Zhou1,LI Yong1(1.Tianjin Key Laboratory of Water Environment and Resources,Tianjin Normal University,Tianjin 300387,China,2.State Key Laboratory of Environmental Geochemistry,Institute of Geochemistry,Chinese Academy of Sciences,Guiyang 550002,China) |
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| Abstract: | Organic carbon,one of the important constituents and an effective environmental indicator in the terrestrial aquatic ecosystem,is an important link in the global carbon cycle.In the present study,the δ13C values of Particulate Organic Carbon(POC) and Dissolved Organic Carbon(DOC) in surface waters of the Tianjin District were measured to investigate their potential sources.The results showed that the δ13C values of POC range from-22‰ to-36‰,fully indicating that POC is derived from city sewage water and planktons.The δ13C values of DOC have an average value of-25‰,implying the overwhelming contribution of city sewage.Inspite of POC or DOC,organic carbon that is derived from soil erosion has only very limited contributions. |
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| Keywords: | surface water POC DOC potential source δ13C |
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