海洋环境中溶解氧稳定氧同位素研究进展
Progress in oxygen isotopic composition of dissolved oxygen in marine systems
查看参考文献49篇
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文摘
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溶解氧(DO)的稳定氧同位素组成(δ~(18)O_(DO))是水生系统DO 生物地球化学循环研究的有效示踪剂之一,不同生物地球化学过程引起的氧同位素分馏会反馈到溶解氧同位素组成上。在近年来水生环境中溶解氧同位素研究的基础上,回顾了溶解氧同位素的分馏机理及其影响因素,以及氧同位素的测试技术和海洋环境中溶解氧同位素的应用。在现阶段取得的主要研究进展基础上,提出今后研究及发展趋势应侧重于同位素分析测试技术的提高,特别是高效、快速、连续预处理方法的建立,基础理论研究和关键物理过程在海洋环境溶解氧同位素分布中的作用及其控制机制等方面。 |
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其他语种文摘
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The stable isotopic composition of dissolved oxygen (δ~(18)O_(DO)) can provide important information about the oxygen cycling in the aquatic systems. Different biogeochemical processes, including atmospheric O_2 dissolution, biological respiration and photosynthesis, play an important role on the isotopic composition of DO. In this paper, we review recent progress of δ~(18)O_(DO) in marine systems, including the oxygen isotopic fractionation during the different biogeochemical processes, the analysis techniques and the applications in various dissolved oxygen studies. Key directions for future research include an analytical advance, especially an effective pre-treatment method, theoretical studies of some unknown aspects and a future understanding of the δ~(18)O_(DO) dynamics under the influence of key physical processes. |
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来源
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海洋环境科学
,2014,33(4):636-642 【核心库】
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关键词
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溶解氧
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稳定氧同位素
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同位素分馏
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地址
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中国科学院广州地球化学研究所, 中国科学院边缘海地质重点实验室, 广东, 广州, 510640
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语种
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中文 |
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文献类型
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综述型 |
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ISSN
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1007-6336 |
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学科
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环境科学基础理论 |
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基金
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国家自然科学基金
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中国博士后科学基金
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文献收藏号
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CSCD:5192668
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