| 大气14CO2的时空分异特征及其在化石源CO2示踪中的应用 |
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| 引用本文： | 牛振川,周卫健,吴书刚,卢雪峰,程鹏,熊晓虎,杜花,霍雯雯.大气14CO2的时空分异特征及其在化石源CO2示踪中的应用[J].地球环境学报,2014(1):1-9. |
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| 作者姓名： | 牛振川 周卫健 吴书刚 卢雪峰 程鹏 熊晓虎 杜花 霍雯雯 |
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| 作者单位： | 中国科学院地球环境研究所 黄土与第四纪地质国家重点实验室，西安 710075;国家加速器质谱中心西安，西安 710054,中国科学院地球环境研究所 黄土与第四纪地质国家重点实验室，西安 710075;国家加速器质谱中心西安，西安 710054;西安交通大学，西安 710049,中国科学院地球环境研究所 黄土与第四纪地质国家重点实验室，西安 710075;国家加速器质谱中心西安，西安 710054,中国科学院地球环境研究所 黄土与第四纪地质国家重点实验室，西安 710075;国家加速器质谱中心西安，西安 710054,中国科学院地球环境研究所 黄土与第四纪地质国家重点实验室，西安 710075;国家加速器质谱中心西安，西安 710054,中国科学院地球环境研究所 黄土与第四纪地质国家重点实验室，西安 710075;国家加速器质谱中心西安，西安 710054,中国科学院地球环境研究所 黄土与第四纪地质国家重点实验室，西安 710075;国家加速器质谱中心西安，西安 710054,中国科学院地球环境研究所 黄土与第四纪地质国家重点实验室，西安 710075;国家加速器质谱中心西安，西安 710054 |
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| 基金项目： | 国家自然科学基金项目(41303072)，中国科学院地球环境研究所黄土与第四纪地质国家重点实验室自主部署重点课题(LQ1301)，中国科学院地球环境研究所青年人才项目(Y354011480)
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| 摘 要： | 大气CO2中放射性碳同位素(14C)的水平可以反映化石源CO2的影响程度，这对于评估我国目前化石源CO2的排放状况和制定节能减排政策具有重要的指导意义。本文在概述大气14CO2采样和分析方法的基础上，简要介绍了大气14CO2观测的起源和主要的源汇过程，重点论述了大气14CO2的时空分异特征及其驱动因素；阐述了化石源CO2浓度的估算方法及14CO2在国内外化石源CO2示踪中的应用现状，并对大气14CO2观测在我国化石源CO2示踪中的应用前景进行了展望；旨在为我国正确地开展大气14CO2的观测研究，深刻地理解特定区域大气14CO2的时空分异特征和化石源CO2的分布状况提供参考。
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| 关 键 词： | 大气14CO2 同位素示踪 化石源CO2 时空分异特征 驱动因素 |
| 收稿时间： | 2014/1/6 0:00:00 |
Spatial-temporal characteristics of atmospheric 14CO2 and its applications on the tracing of fossil fuel CO2 |
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| Authors: | NIU Zhen-chuan ZHOU Wei-jian WU Shu-gang LU Xue-feng CHENG Peng XIONG Xiao-hu DU Hua and HUO Wen-wen |
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| Institution: | State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi''an 710075, China ;National Center for Accelerator Mass Spectrometry in Xi''an, Xi''an 710054, China,State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi''an 710075, China ;National Center for Accelerator Mass Spectrometry in Xi''an, Xi''an 710054, China ;Xi''an Jiaotong University, Xi''an 710049, China,State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi''an 710075, China ;National Center for Accelerator Mass Spectrometry in Xi''an, Xi''an 710054, China,State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi''an 710075, China ;National Center for Accelerator Mass Spectrometry in Xi''an, Xi''an 710054, China,State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi''an 710075, China ;National Center for Accelerator Mass Spectrometry in Xi''an, Xi''an 710054, China,State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi''an 710075, China ;National Center for Accelerator Mass Spectrometry in Xi''an, Xi''an 710054, China,State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi''an 710075, China ;National Center for Accelerator Mass Spectrometry in Xi''an, Xi''an 710054, China and State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi''an 710075, China ;National Center for Accelerator Mass Spectrometry in Xi''an, Xi''an 710054, China |
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| Abstract: | The level of radiocarbon (14C) in atmospheric CO2 can be used to trace the concentrations of fossil fuel CO2, which is a valuable tool for the governments to understand the current emissions of fossil fuel CO2, and then to formulate mitigation strategies for CO2 emissions. In this paper, the observation history, source and sink, and collection and analysis methods of 14CO2 is briefly reviewed, with the emphasis on the characteristics of spatial-temporal 14CO2 variations and its driving forces. In addition, the method to calculate fossil fuel CO2 concentration and its application on the tracing of fossil fuel CO2 at abroad and home is presented, along with the suggestions for the future 14CO2 study in China. This paper will help to understand the characteristics of 14CO2 and current distributions of fossil fuel CO2 in China. |
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| Keywords: | atmospheric CO2 isotope tracing fossil fuel CO2 spatial-temporal variations driving forces |
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