Production mechanism and global budget of N2O inferred from its isotopomers in the western North Pacific
Production mechanism and global budget of N2O inferred from its isotopomers in the western North Pacific
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DOI：
10.1029/2001gl014311
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发表时间：
2002-02
影响因子：
5.2
通讯作者：
S. Toyoda;N. Yoshida;T. Miwa;Y. Matsui;H. Yamagishi;U. Tsunogai;Y. Nojiri;N. Tsurushima
中科院分区：
文献类型：
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作者：
S. Toyoda;N. Yoshida;T. Miwa;Y. Matsui;H. Yamagishi;U. Tsunogai;Y. Nojiri;N. Tsurushima
我们首次测量了北太平洋西部海洋一氧化二氮（N2O）中15N的分子内分布以及常规氮和氧同位素比。与大量氮同位素比率几乎均匀的垂直分布相反，分子内 15N 分布的位点偏好存在很大差异，这表明地下和深层源混合以及海洋中的产生机制。 N2O 同位素异构体的海洋组成定量地表明海洋是继陆地之后最重要的来源。
We measured the intramolecular distribution of 15N as well as conventional nitrogen and oxygen isotope ratios in oceanic nitrous oxide (N2O) in the western North Pacific for the first time. In contrast to a nearly homogeneous vertical distribution of a bulk nitrogen isotope ratio, a wide variation in site preference for intramolecular 15N distribution was found, suggesting the subsurface and deep source mixing and the production mechanism in the ocean. The oceanic composition of N2O isotopomers quantitatively outlines the ocean as the most significant source after the terrestrial one.