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DOI | 10.1038/NGEO2890 |
Silicon and zinc biogeochemical cycles coupled through the Southern Ocean | |
Vance, Derek1; Little, Susan H.2; de Souza, Gregory F.1; Khatiwala, Samar3; Lohan, Maeve C.4; Middag, Rob5,6 | |
2017-03-01 | |
发表期刊 | NATURE GEOSCIENCE
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ISSN | 1752-0894 |
EISSN | 1752-0908 |
出版年 | 2017 |
卷号 | 10期号:3 |
文章类型 | Article |
语种 | 英语 |
国家 | Switzerland; England; Netherlands |
英文摘要 | Zinc is vital for the physiology of oceanic phytoplankton. The striking similarity of the depth profiles of zinc to those of silicate suggests that the uptake of both elements into the opaline frustules of diatoms, and their regeneration from these frustules, should be coupled. However, the zinc content of diatom opal is negligible, and zinc is taken up into and regenerated from the organic parts of diatom cells. Thus, since opaline frustules dissolve deep in the water column while organic material is regenerated in the shallow subsurface ocean, there is little reason to expect the observed close similarity between zinc and silicate, and the dissimilarity between zinc and phosphate. Here we combine observations with simulations using a three-dimensional model of ocean circulation and biogeochemistry to show that the coupled distribution of zinc and silicate, as well as the decoupling of zinc and phosphate, can arise in the absence of mechanistic links between the uptake of zinc and silicate, and despite contrasting regeneration length scales. Our simulations indicate that the oceanic zinc distribution is, in fact, a natural result of the interaction between ocean biogeochemistry and the physical circulation through the Southern Ocean hub. Our analysis demonstrates the importance of uptake stoichiometry in controlling ocean biogeochemistry, and the utility of global-scale elemental covariation in the ocean in understanding these controls. |
领域 | 地球科学 ; 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000395791400012 |
WOS关键词 | DISSOLVED ZINC ; TRACE-ELEMENTS ; GLOBAL OCEAN ; PHYTOPLANKTON ; CIRCULATION ; IRON ; WATER ; DISTRIBUTIONS ; PHOSPHATE ; CADMIUM |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/34976 |
专题 | 地球科学 气候变化 |
作者单位 | 1.Swiss Fed Inst Technol, Dept Earth Sci, Inst Geochem & Petr, Clausiusstr 25, CH-8092 Zurich, Switzerland; 2.Imperial Coll London, Dept Earth Sci & Engn, South Kensington Campus,Exhibit Rd, London SW7 2AZ, England; 3.Dept Earth Sci, South Parks Rd, Oxford OX1 3AN, England; 4.Univ Southampton, Natl Oceanog Ctr, Sch Ocean & Earth Sci, Southampton SO14 3ZH, Hants, England; 5.NIOZ Royal Netherlands Inst Sea Res, Dept Ocean Syst, POB 59, NL-1790 AB Den Burg, Texel, Netherlands; 6.Univ Utrecht, POB 59, NL-1790 AB Den Burg, Texel, Netherlands |
推荐引用方式 GB/T 7714 | Vance, Derek,Little, Susan H.,de Souza, Gregory F.,et al. Silicon and zinc biogeochemical cycles coupled through the Southern Ocean[J]. NATURE GEOSCIENCE,2017,10(3). |
APA | Vance, Derek,Little, Susan H.,de Souza, Gregory F.,Khatiwala, Samar,Lohan, Maeve C.,&Middag, Rob.(2017).Silicon and zinc biogeochemical cycles coupled through the Southern Ocean.NATURE GEOSCIENCE,10(3). |
MLA | Vance, Derek,et al."Silicon and zinc biogeochemical cycles coupled through the Southern Ocean".NATURE GEOSCIENCE 10.3(2017). |
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