Distribution of Dissolved Zinc in the Western and Central Subarctic North Pacific

被引：24

作者：

Kim, Taejin ^{[1
]}

Obata, Hajime ^{[1
]}

Nishioka, Jun ^{[2
]}

Gamo, Toshitaka ^{[1
]}

机构：

[1] Univ Tokyo, Atmosphere & Ocean Res Inst, Kashiwa, Chiba, Japan

[2] Hokkaido Univ, Inst Low Temp Sci, Sapporo, Hokkaido, Japan

来源：

GLOBAL BIOGEOCHEMICAL CYCLES | 2017年 / 31卷 / 09期

关键词：

HYDROGRAPHIC STRUCTURE; BIOGEOCHEMICAL CYCLES; TRACE-ELEMENTS; CO-LIMITATION; IRON; OCEAN; CADMIUM; COBALT; PHYTOPLANKTON; SPECIATION;

D O I：

10.1002/2017GB005711

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

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 sigma(theta)) 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.

引用

页码：1454 / 1468

页数：15

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