Shifts in biogenic carbon flow from particulate to dissolved forms under high carbon dioxide and warm ocean conditions
[1] Photosynthesis by phytoplankton in sunlit surface waters transforms inorganic carbon and nutrients into organic matter, a portion of which is subsequently transported vertically through the water column by the process known as the biological carbon pump (BCP). The BCP sustains the steep vertical...
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Online Access: | https://oasis.postech.ac.kr/handle/2014.oak/17430 https://doi.org/10.1029/2011GL047346 |
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ftponangunivst:oai:oasis.postech.ac.kr:2014.oak/17430 2023-05-15T17:51:59+02:00 Shifts in biogenic carbon flow from particulate to dissolved forms under high carbon dioxide and warm ocean conditions Kim, JM Lee, K Shin, K Yang, EJ Engel, A Karl, DM Kim, HC 환경공학부 10056383 Lee, K 2011-04-29 https://oasis.postech.ac.kr/handle/2014.oak/17430 https://doi.org/10.1029/2011GL047346 English eng AMER GEOPHYSICAL UNION GEOPHYSICAL RESEARCH LETTERS 38 L08612 SCI급, SCOPUS 등재논문 SCI Geosciences, Multidisciplinary Geology 0094-8276 2011-OAK-0000023630 https://oasis.postech.ac.kr/handle/2014.oak/17430 doi:10.1029/2011GL047346 12272 GEOPHYSICAL RESEARCH LETTERS, v.38, pp.L08612 - L08612 000290108600004 2-s2.0-79955617681 TRANSPARENT EXOPOLYMER PARTICLES ORGANIC-CARBON NATURAL PHYTOPLANKTON MESOCOSM EXPERIMENT BIOLOGICAL PUMP MATTER TEMPERATURE SEA EXCRETION RELEASE ORGANIC-MATTER PHYTOPLANKTON FLUX Article ART 2011 ftponangunivst https://doi.org/10.1029/2011GL047346 2022-10-20T20:11:15Z [1] Photosynthesis by phytoplankton in sunlit surface waters transforms inorganic carbon and nutrients into organic matter, a portion of which is subsequently transported vertically through the water column by the process known as the biological carbon pump (BCP). The BCP sustains the steep vertical gradient in total dissolved carbon, thereby contributing to net carbon sequestration. Any changes in the vertical transportation of the organic matter as a result of future climate variations will directly affect surface ocean carbon dioxide (CO2) concentrations, and subsequently influence oceanic uptake of atmospheric CO2 and climate. Here we present results of experiments designed to investigate the potential effects of ocean acidification and warming on the BCP. These perturbation experiments were carried out in enclosures (3,000 L volume) in a controlled mesocosm facility that mimicked future pCO(2) (similar to 900 ppmv) and temperature (3 degrees C higher than ambient) conditions. The elevated CO2 and temperature treatments disproportionately enhanced the ratio of dissolved organic carbon (DOC) production to particulate organic carbon (POC) production, whereas the total organic carbon (TOC) production remained relatively constant under all conditions tested. A greater partitioning of organic carbon into the DOC pool indicated a shift in the organic carbon flow from the particulate to dissolved forms, which may affect the major pathways involved in organic carbon export and sequestration under future ocean conditions. Citation: Kim, J.-M., K. Lee, K. Shin, E. J. Yang, A. Engel, D. M. Karl, and H.-C. Kim (2011), Shifts in biogenic carbon flow from particulate to dissolved forms under high carbon dioxide and warm ocean conditions, Geophys. Res. Lett., 38, L08612, doi:10.1029/2011GL047346. X 1 1 48 40 scie scopus Article in Journal/Newspaper Ocean acidification Pohang University of Science and Technology (POSTECH): Open Access System for Information Sharing (OASIS) Geophysical Research Letters 38 8 n/a n/a |
institution |
Open Polar |
collection |
Pohang University of Science and Technology (POSTECH): Open Access System for Information Sharing (OASIS) |
op_collection_id |
ftponangunivst |
language |
English |
topic |
TRANSPARENT EXOPOLYMER PARTICLES ORGANIC-CARBON NATURAL PHYTOPLANKTON MESOCOSM EXPERIMENT BIOLOGICAL PUMP MATTER TEMPERATURE SEA EXCRETION RELEASE ORGANIC-MATTER PHYTOPLANKTON FLUX |
spellingShingle |
TRANSPARENT EXOPOLYMER PARTICLES ORGANIC-CARBON NATURAL PHYTOPLANKTON MESOCOSM EXPERIMENT BIOLOGICAL PUMP MATTER TEMPERATURE SEA EXCRETION RELEASE ORGANIC-MATTER PHYTOPLANKTON FLUX Kim, JM Lee, K Shin, K Yang, EJ Engel, A Karl, DM Kim, HC Shifts in biogenic carbon flow from particulate to dissolved forms under high carbon dioxide and warm ocean conditions |
topic_facet |
TRANSPARENT EXOPOLYMER PARTICLES ORGANIC-CARBON NATURAL PHYTOPLANKTON MESOCOSM EXPERIMENT BIOLOGICAL PUMP MATTER TEMPERATURE SEA EXCRETION RELEASE ORGANIC-MATTER PHYTOPLANKTON FLUX |
description |
[1] Photosynthesis by phytoplankton in sunlit surface waters transforms inorganic carbon and nutrients into organic matter, a portion of which is subsequently transported vertically through the water column by the process known as the biological carbon pump (BCP). The BCP sustains the steep vertical gradient in total dissolved carbon, thereby contributing to net carbon sequestration. Any changes in the vertical transportation of the organic matter as a result of future climate variations will directly affect surface ocean carbon dioxide (CO2) concentrations, and subsequently influence oceanic uptake of atmospheric CO2 and climate. Here we present results of experiments designed to investigate the potential effects of ocean acidification and warming on the BCP. These perturbation experiments were carried out in enclosures (3,000 L volume) in a controlled mesocosm facility that mimicked future pCO(2) (similar to 900 ppmv) and temperature (3 degrees C higher than ambient) conditions. The elevated CO2 and temperature treatments disproportionately enhanced the ratio of dissolved organic carbon (DOC) production to particulate organic carbon (POC) production, whereas the total organic carbon (TOC) production remained relatively constant under all conditions tested. A greater partitioning of organic carbon into the DOC pool indicated a shift in the organic carbon flow from the particulate to dissolved forms, which may affect the major pathways involved in organic carbon export and sequestration under future ocean conditions. Citation: Kim, J.-M., K. Lee, K. Shin, E. J. Yang, A. Engel, D. M. Karl, and H.-C. Kim (2011), Shifts in biogenic carbon flow from particulate to dissolved forms under high carbon dioxide and warm ocean conditions, Geophys. Res. Lett., 38, L08612, doi:10.1029/2011GL047346. X 1 1 48 40 scie scopus |
author2 |
환경공학부 10056383 Lee, K |
format |
Article in Journal/Newspaper |
author |
Kim, JM Lee, K Shin, K Yang, EJ Engel, A Karl, DM Kim, HC |
author_facet |
Kim, JM Lee, K Shin, K Yang, EJ Engel, A Karl, DM Kim, HC |
author_sort |
Kim, JM |
title |
Shifts in biogenic carbon flow from particulate to dissolved forms under high carbon dioxide and warm ocean conditions |
title_short |
Shifts in biogenic carbon flow from particulate to dissolved forms under high carbon dioxide and warm ocean conditions |
title_full |
Shifts in biogenic carbon flow from particulate to dissolved forms under high carbon dioxide and warm ocean conditions |
title_fullStr |
Shifts in biogenic carbon flow from particulate to dissolved forms under high carbon dioxide and warm ocean conditions |
title_full_unstemmed |
Shifts in biogenic carbon flow from particulate to dissolved forms under high carbon dioxide and warm ocean conditions |
title_sort |
shifts in biogenic carbon flow from particulate to dissolved forms under high carbon dioxide and warm ocean conditions |
publisher |
AMER GEOPHYSICAL UNION |
publishDate |
2011 |
url |
https://oasis.postech.ac.kr/handle/2014.oak/17430 https://doi.org/10.1029/2011GL047346 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
GEOPHYSICAL RESEARCH LETTERS 38 L08612 SCI급, SCOPUS 등재논문 SCI Geosciences, Multidisciplinary Geology 0094-8276 2011-OAK-0000023630 https://oasis.postech.ac.kr/handle/2014.oak/17430 doi:10.1029/2011GL047346 12272 GEOPHYSICAL RESEARCH LETTERS, v.38, pp.L08612 - L08612 000290108600004 2-s2.0-79955617681 |
op_doi |
https://doi.org/10.1029/2011GL047346 |
container_title |
Geophysical Research Letters |
container_volume |
38 |
container_issue |
8 |
container_start_page |
n/a |
op_container_end_page |
n/a |
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1766159300771708928 |