| YU Peisong,ZHANG Haisheng,ZHENG Minhui,PAN Jianming,BAI Yan. 2013. The partial pressure of carbon dioxide and air-sea fluxes in the Changjiang River Estuary and adjacent Hangzhou Bay. Acta Oceanologica Sinica, 32(6):13－17 |
| The partial pressure of carbon dioxide and air-sea fluxes in the Changjiang River Estuary and adjacent Hangzhou Bay |
| The partial pressure of carbon dioxide and air-sea fluxes in the Changjiang River Estuary and adjacent Hangzhou Bay |
| Received:March 15, 2012 Revised:December 19, 2012 |
| DOI：10.1007/s13131-013-0320-6 |
| Key words:carbon dioxide air-sea flux Changjiang River Estuary Hangzhou Bay |
| 中文关键词: carbon dioxide air-sea flux Changjiang River Estuary Hangzhou Bay |
| 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. |
| Author Name | Affiliation | E-mail | | YU Peisong | 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 | | | ZHANG Haisheng | Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China | zhangsoa@163.com | | ZHENG Minhui | Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China | | | PAN Jianming | Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China | | | BAI Yan | State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China | |
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| 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. |
| 中文摘要: |
| 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. |
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