Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2021GL095908 |
Iron-phosphorus feedbacks drive multidecadal oscillations in Baltic Sea hypoxia | |
Tom Jilbert; Bo G. Gustafsson; Simon Veldhuijzen; Daniel C. Reed; Niels A. G. M. van Helmond; Martijn Hermans; Caroline P. Slomp | |
2021-12-03 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2021 |
英文摘要 | Hypoxia has occurred intermittently in the Baltic Sea since the establishment of brackish-water conditions at ∼8000 years B.P., principally as recurrent hypoxic events during the Holocene Thermal Maximum (HTM) and the Medieval Climate Anomaly (MCA). Sedimentary phosphorus release has been implicated as a key driver of these events, but previous paleoenvironmental reconstructions have lacked the sampling resolution to investigate feedbacks in past iron-phosphorus cycling on short timescales. Here we employ Laser Ablation (LA)-ICP-MS scanning of sediment cores to generate ultra-high resolution geochemical records of past hypoxic events. We show that in-phase multidecadal oscillations in hypoxia intensity and iron-phosphorus cycling occurred throughout these events. Using a box model, we demonstrate that such oscillations were likely driven by instabilities in the dynamics of iron-phosphorus cycling under pre-industrial phosphorus loads, and modulated by external climate forcing. Oscillatory behavior could complicate the recovery from hypoxia during future trajectories of external loading reductions. |
领域 | 气候变化 |
URL | 查看原文 |
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/343106 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Tom Jilbert,Bo G. Gustafsson,Simon Veldhuijzen,et al. Iron-phosphorus feedbacks drive multidecadal oscillations in Baltic Sea hypoxia[J]. Geophysical Research Letters,2021. |
APA | Tom Jilbert.,Bo G. Gustafsson.,Simon Veldhuijzen.,Daniel C. Reed.,Niels A. G. M. van Helmond.,...&Caroline P. Slomp.(2021).Iron-phosphorus feedbacks drive multidecadal oscillations in Baltic Sea hypoxia.Geophysical Research Letters. |
MLA | Tom Jilbert,et al."Iron-phosphorus feedbacks drive multidecadal oscillations in Baltic Sea hypoxia".Geophysical Research Letters (2021). |
条目包含的文件 | 条目无相关文件。 |
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