Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2016GL072183 |
Intense biological phosphate uptake onto particles in subeuphotic continental margin waters | |
Sokoll, S.1,2; Ferdelman, T. G.1,2; Holtappels, M.1,2,3; Goldhammer, T.2,4; Littmann, S.1; Iversen, M. H.2,5; Kuypers, M. M. M.1,2 | |
2017-03-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:6 |
文章类型 | Article |
语种 | 英语 |
国家 | Germany |
英文摘要 | Elucidating the processes that affect particulate phosphorus (P) export from the euphotic zone and burial in sediments is important for models of global phosphorus, nitrogen, and carbon cycling. We investigated dissolved inorganic P-i incorporation into particles (>0.2 mu m) in the subeuphotic zone and benthic boundary layer of high-productivity Mauritanian and Namibian shelf waters, using (PO43-)-P-33 tracer experiments combined with a sequential chemical extraction analysis. P-i uptake (5.4 to 19.9nmolPL(-1)d(-1)) by particulate matter was biologically mediated (similar to 50% into the organic fraction) and similar to estimated rates of heterotrophic growth. Thus, a substantial fraction of P-i must be recycled through a particle-associated microbial pool. Rapid adsorption of P-33 in the anoxic waters of Namibia indicated the additional existence of a large pool of surface exchangeable P. Particle-associated P-i recycling and adsorption may influence the export flux and ultimate fate of particle bound P in continental shelf waters. |
英文关键词 | phosphate upwelling particle flux microbial uptake benthic boundary layer |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000399762700025 |
WOS关键词 | MARINE-SEDIMENTS ; PHOSPHORUS REGENERATION ; OXYGEN ISOTOPES ; POLYPHOSPHATE ; REMINERALIZATION ; PHYTOPLANKTON ; ACCUMULATION ; EXTRACTION ; OXIDATION ; ABUNDANCE |
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/26920 |
专题 | 气候变化 |
作者单位 | 1.Max Planck Inst Marine Microbiol, Bremen, Germany; 2.Univ Bremen, MARUM Ctr Marine Environm Sci, Bremen, Germany; 3.Alfred Wegener Inst, Helmholtz Ctr Polar & Marine Res, Bremerhaven, Germany; 4.Leibniz Inst Freshwater Ecol & Inland Fisheries, Berlin, Germany; 5.Alfred Wegener Inst Polar & Marine Res, Helmholtz Young Investigator Grp SEAPUMP, Bremerhaven, Germany |
推荐引用方式 GB/T 7714 | Sokoll, S.,Ferdelman, T. G.,Holtappels, M.,et al. Intense biological phosphate uptake onto particles in subeuphotic continental margin waters[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(6). |
APA | Sokoll, S..,Ferdelman, T. G..,Holtappels, M..,Goldhammer, T..,Littmann, S..,...&Kuypers, M. M. M..(2017).Intense biological phosphate uptake onto particles in subeuphotic continental margin waters.GEOPHYSICAL RESEARCH LETTERS,44(6). |
MLA | Sokoll, S.,et al."Intense biological phosphate uptake onto particles in subeuphotic continental margin waters".GEOPHYSICAL RESEARCH LETTERS 44.6(2017). |
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