The partial pressure of carbon dioxide and air-sea fluxes in the Changjiang River Estuary and adjacent Hangzhou Bay

YU Peisong; ZHANG Haisheng; ZHENG Minhui; PAN Jianming; BAI Yan

doi:10.1007/s13131-013-0320-6

The partial pressure of carbon dioxide and air-sea fluxes in the Changjiang River Estuary and adjacent Hangzhou Bay

doi: 10.1007/s13131-013-0320-6

1.
Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China;Graduate University of Chinese Academy of Sciences, Beijing 100049, China
2.
Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China
3.
State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China

基金项目: The Marine Public Welfare Project of China under contract Nos 200805029, 200905012, 200905025, and 201005034; the Scientific Research Fund of the Second Institute of Oceanography, SOA under contract Nos JG0821 and JG1021.

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出版历程
- 收稿日期: 2012-03-15
- 修回日期: 2012-12-19

The partial pressure of carbon dioxide and air-sea fluxes in the Changjiang River Estuary and adjacent Hangzhou Bay

1.
Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China;Graduate University of Chinese Academy of Sciences, Beijing 100049, China
2.
Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China
3.
State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China

摘要

摘要: The distributions of partial pressure of carbon dioxide (pCO₂) in the surface waters of the Changjiang River Estuary and adjacent Hangzhou Bay were examined in the summer of 2010. Surface water pCO₂ ranged from 751-2 095 μatm (1 atm=101 325 Pa) in the inner estuary, 177-1 036 μatm in the outer estuary, and 498-1 166 μatm in Hangzhou Bay. Overall, surface pCO₂ behaved conservatively during the estuary mixing. In the inner estuary, surface pCO₂ was relatively high due to urbanized pollution and a high respiration rate. The lowest pCO₂ was observed in the outer estuary, which was apparently induced by a phytoplankton bloom because the dissolved oxygen and chlorophyll a were very high. The Changjiang River Estuary was a significant source of atmospheric CO₂ and the degassing fluxes were estimated as 0-230 mmol/(m²·d)[61 mmol/(m²·d) on average] in the inner estuary. In contrast, the outer estuary acted as a CO₂ sink. Key words:carbon dioxide, air-sea flux, Changjiang River Estuary, Hangzhou Bay.
- carbondioxide /
- air-seaflux /
- ChangjiangRiverEstuary /
- HangzhouBay
Abstract: The distributions of partial pressure of carbon dioxide (pCO₂) in the surface waters of the Changjiang River Estuary and adjacent Hangzhou Bay were examined in the summer of 2010. Surface water pCO₂ ranged from 751-2 095 μatm (1 atm=101 325 Pa) in the inner estuary, 177-1 036 μatm in the outer estuary, and 498-1 166 μatm in Hangzhou Bay. Overall, surface pCO₂ behaved conservatively during the estuary mixing. In the inner estuary, surface pCO₂ was relatively high due to urbanized pollution and a high respiration rate. The lowest pCO₂ was observed in the outer estuary, which was apparently induced by a phytoplankton bloom because the dissolved oxygen and chlorophyll a were very high. The Changjiang River Estuary was a significant source of atmospheric CO₂ and the degassing fluxes were estimated as 0-230 mmol/(m²·d)[61 mmol/(m²·d) on average] in the inner estuary. In contrast, the outer estuary acted as a CO₂ sink. Key words:carbon dioxide, air-sea flux, Changjiang River Estuary, Hangzhou Bay.
- carbon dioxide /
- air-sea flux /
- Changjiang River Estuary /
- Hangzhou Bay

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文章访问数: 354
HTML全文浏览量: 42
PDF下载量: 97
被引次数: 0

The partial pressure of carbon dioxide and air-sea fluxes in the Changjiang River Estuary and adjacent Hangzhou Bay

doi: 10.1007/s13131-013-0320-6

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出版历程

The partial pressure of carbon dioxide and air-sea fluxes in the Changjiang River Estuary and adjacent Hangzhou Bay

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出版历程

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