Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017GL074921 |
Diapycnal Fluxes of Nutrients in an Oligotrophic Oceanic Regime: The South China Sea | |
Du, Chuanjun; Liu, Zhiyu; Kao, Shuh-Ji; Dai, Minhan | |
2017-11-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:22 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | Nutrients from depth have been hypothesized as a primary source of new nutrients that sustain new productivity in oligotrophic oceans; however, the flux is challenging to quantify. Here we show for a first time in the oligotrophic South China Sea an extremely low diapycnal dissolved inorganic nitrogen (DIN) flux as 1.8 x 10(-4) mmol m(-2) d(-1) in the nutrient-depleted layer (NDL) above the nutricline, where other nutrient supplies sustain the new production. Here higher phosphate and silicate fluxes relative to DIN than Redfield stoichiometry further indicate N-limited biological productivity and additional removal of DIN by diatoms. Below the NDL across the nutricline to the base of euphotic zone, termed as nutrient replete layer, the DIN flux is three orders of magnitude larger and sufficient in supporting the export production therein. Here higher DIC flux relative to DIN than Redfield stoichiometry further infers DIC excess in the upper ocean. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000419102300033 |
WOS关键词 | PACIFIC SUBTROPICAL GYRE ; WATER-MASS CONVERSION ; SEASONAL-VARIATIONS ; NORTH-ATLANTIC ; NITRATE ; DYNAMICS ; PHOSPHORUS ; KUROSHIO ; SEAWATER ; NITROGEN |
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/25968 |
专题 | 气候变化 |
作者单位 | Xiamen Univ, State Key Lab Marine Environm Sci, Xiamen, Peoples R China |
推荐引用方式 GB/T 7714 | Du, Chuanjun,Liu, Zhiyu,Kao, Shuh-Ji,et al. Diapycnal Fluxes of Nutrients in an Oligotrophic Oceanic Regime: The South China Sea[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(22). |
APA | Du, Chuanjun,Liu, Zhiyu,Kao, Shuh-Ji,&Dai, Minhan.(2017).Diapycnal Fluxes of Nutrients in an Oligotrophic Oceanic Regime: The South China Sea.GEOPHYSICAL RESEARCH LETTERS,44(22). |
MLA | Du, Chuanjun,et al."Diapycnal Fluxes of Nutrients in an Oligotrophic Oceanic Regime: The South China Sea".GEOPHYSICAL RESEARCH LETTERS 44.22(2017). |
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