Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1038/s41561-018-0191-8 |
Increased nutrient supply to the Southern Ocean during the Holocene and its implications for the pre-industrial atmospheric CO2 rise | |
Studer, Anja S.1,10; Sigman, Daniel M.2; Martinez-Garcia, Alfredo1; Thole, Lena M.3,4; Michel, Elisabeth5; Jaccard, Samuel L.3,4; Lippolds, Joerg A.6; Mazaud, Alain5; Wang, Xingchen T.2,7; Robinson, Laura F.8; Adkins, Jess F.7; Haug, Gerald H.1,9 | |
2018-10-01 | |
发表期刊 | NATURE GEOSCIENCE |
ISSN | 1752-0894 |
EISSN | 1752-0908 |
出版年 | 2018 |
卷号 | 11期号:10页码:756-+ |
文章类型 | Article |
语种 | 英语 |
国家 | Germany; USA; Switzerland; France; England |
英文摘要 | A rise in the atmospheric CO2 concentration of similar to 20 parts per million over the course of the Holocene has long been recognized as exceptional among interglacials and is in need of explanation. Previous hypotheses involved natural or anthropogenic changes in terrestrial biomass, carbonate compensation in response to deglacial outgassing of oceanic CO2, and enhanced shallow water carbonate deposition. Here, we compile new and previously published fossil-bound nitrogen isotope records from the Southern Ocean that indicate a rise in surface nitrate concentration through the Holocene. When coupled with increasing or constant export production, these data suggest an acceleration of nitrate supply to the Southern Ocean surface from underlying deep water. This change would have weakened the ocean's biological pump that stores CO2 in the ocean interior, possibly explaining the Holocene atmospheric CO2 rise. Over the Holocene, the circum-North Atlantic region cooled, and the formation of North Atlantic Deep Water appears to have slowed. Thus, the 'seesaw' in deep ocean ventilation between the North Atlantic and the Southern Ocean that has been invoked for millennial-scale events, deglaciations and the last interglacial period may have also operated, albeit in a more gradual form, over the Holocene. |
领域 | 地球科学 ; 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000446089100013 |
WOS关键词 | CARBON-CYCLE DYNAMICS ; OVERTURNING CIRCULATION ; ISOTOPIC COMPOSITION ; SURFACE NITRATE ; BOUND NITROGEN ; DEEP-SEA ; ICE ; STRATIFICATION ; STRENGTH ; OPAL |
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/34666 |
专题 | 地球科学 气候变化 |
作者单位 | 1.Max Planck Inst Chem, Climate Geochem Dept, Mainz, Germany; 2.Princeton Univ, Dept Geosci, Princeton, NJ 08544 USA; 3.Univ Bern, Inst Geol Sci, Bern, Switzerland; 4.Univ Bern, Oeschger Ctr Climate Change Res, Bern, Switzerland; 5.LSCE, Gif Sur Yvette, France; 6.Heidelberg Univ, Inst Earth Sci, Heidelberg, Germany; 7.CALTECH, Div Geol & Planetary Sci, Pasadena, CA 91125 USA; 8.Univ Bristol, Sch Earth Sci, Bristol Isotope Grp, Bristol, Avon, England; 9.Swiss Fed Inst Technol, Dept Earth Sci, Zurich, Switzerland; 10.Univ Basel, Dept Environm Sci, Basel, Switzerland |
推荐引用方式 GB/T 7714 | Studer, Anja S.,Sigman, Daniel M.,Martinez-Garcia, Alfredo,et al. Increased nutrient supply to the Southern Ocean during the Holocene and its implications for the pre-industrial atmospheric CO2 rise[J]. NATURE GEOSCIENCE,2018,11(10):756-+. |
APA | Studer, Anja S..,Sigman, Daniel M..,Martinez-Garcia, Alfredo.,Thole, Lena M..,Michel, Elisabeth.,...&Haug, Gerald H..(2018).Increased nutrient supply to the Southern Ocean during the Holocene and its implications for the pre-industrial atmospheric CO2 rise.NATURE GEOSCIENCE,11(10),756-+. |
MLA | Studer, Anja S.,et al."Increased nutrient supply to the Southern Ocean during the Holocene and its implications for the pre-industrial atmospheric CO2 rise".NATURE GEOSCIENCE 11.10(2018):756-+. |
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