Distribution of Dissolved Zinc in the Western and Central Subarctic North Pacific
Distribution of Dissolved Zinc in the Western and Central Subarctic North Pacific
复制标题
DOI：
10.1002/2017gb005711
复制
发表时间：
2016-02
影响因子：
5.2
通讯作者：
Taejin Kim;H. Obata;J. Nishioka;T. Gamo
中科院分区：
文献类型：
--
作者：
Taejin Kim;H. Obata;J. Nishioka;T. Gamo
在GEOTRACES GP 02航次期间，我们调查了亚北极北太平洋西部和中部溶解锌（Zn）的地球化学循环。亚北极北太平洋溶解态锌与硅酸盐的关系呈凹形曲线。副北极北太平洋西部和中部中层沃茨的Zn ~* 值均为强正值（26.6-27.5 σθ）。在从浅水到中层水的过渡过程中，溶解锌和可溶性活性磷（SRP）之间的关系存在明显的扭结，这与其他公海的报道相似。中层水的高Zn：SRP比值和高Zn* 表明，中层水团在亚北极北太平洋溶解态Zn和硅酸盐的解耦过程中起着重要作用，这意味着控制中层水溶解态Zn和硅酸盐的地球化学过程不同于其它大洋。
We investigated the biogeochemical cycling of dissolved zinc (Zn) in the western and central subarctic North Pacific during the GEOTRACES GP 02 cruise. The relationship between dissolved Zn and silicate in the subarctic North Pacific plotted as a concave curve. Values of Zn* were strongly positive in the intermediate waters (26.6–27.5 σθ) of both the western and the central subarctic North Pacific. There was a distinct kink in the relationship between dissolved Zn and soluble reactive phosphorus (SRP) at the transition from shallow to intermediate water, which is similar to what has been reported for other open oceans. The high Zn:SRP ratio and high Zn* in the intermediate water suggest that intermediate water masses play an important role in the decoupling of dissolved Zn and silicate in the subarctic North Pacific, which implies that the biogeochemical processes that control dissolved Zn and silicate in the intermediate water are different from those in other oceanic regions.