| pCO_2 and carbon fluxes across sea-air interface in the Changjiang Estuary and Hangzhou Bay |
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| 作者姓名： | 高学鲁 宋金明 李学刚 李宁 袁华茂 |
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| 作者单位： | Key Laboratory of Marine Ecology and Environmental Sciences，Institute of Oceanology，Chinese Academy of Sciences，Qingdao 266071，China，Yantai Institute of Coastal Zone Research for Sustainable Development，Chinese Academy of Sciences，Yantai 264003，China |
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| 基金项目： | 国家重点基础研究发展计划(973计划)，open foundation of the Key Laboratory of Marine Sedimentology & Environmental Geology;SOA，山东省青岛市科技发展基金 |
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| 摘 要： | Partial pressure of CO2(pCO2) was investigated in the Changjiang(Yangtze River) Estuary,Hangzhou Bay and their adjacent areas during a cruise in August 2004,China.The data show that pCO2 in surface waters of the studied area was higher than that in the atmosphere with only exception of a patch east of Zhoushan Archipelago.The pCO2 varied from 168 to 2 264 μatm,which fell in the low range compared with those of other estuaries in the world.The calculated sea-air CO2 fluxes decreased offshore and varied from -10.0 to 88.1 mmol m-2 d-1 in average of 24.4 ± 16.5 mmol m-2 d-1.Although the area studied was estimated only 2 × 104 km2,it emitted(5.9 ± 4.0) × 103 tons of carbon to the atmosphere every day.The estuaries and their plumes must be further studied for better understanding the role of coastal seas playing in the global oceanic carbon cycle.
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| 关 键 词： | 二氧化碳 局部压力 局部分布 海洋空气交换 长江口 杭州湾 |
pCO2 and carbon fluxes across sea-air interface in the Changjiang Estuary and Hangzhou Bay |
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| GAO Xuelu,SONG Jinming,LI Xuegang,LI Ning,YUAN Huamao Key Laboratory of Marine Ecology and Environmental Sciences.pCO_2 and carbon fluxes across sea-air interface in the Changjiang Estuary and Hangzhou Bay[J].Chinese Journal of Oceanology and Limnology,2008,26(3). |
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| Authors: | GAO Xuelu SONG Jinming LI Xuegang LI Ning YUAN Huamao Key Laboratory of Marine Ecology and Environmental Sciences |
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| Institution: | [1]Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China [2]Yantat Institute of Coastal Zone Research for Sustamable Development, Chinese Academy of Sciences, Yantai 264003, China |
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| Abstract: | Partial pressure of CO2 (pCO2) was investigated in the Changjiang (Yangtze River) Estuary, Hangzhou Bay and their adjacent areas during a cruise in August 2004, China. The data show that pCO2 in surface waters of the studied area was higher than that in the atmosphere with only exception of a patch east of Zhoushan Archipelago. The pCO2 varied from 168 to 2 264 μatm, which fell in the low range compared with those of other estuaries in the world. The calculated sea-air CO2 fluxes decreased offshore and varied from (10.0 to 88.1 mmol m-2 d-1 in average of 24.4 ± 16.5 mmol m-2 d-1. Although the area studied was estimated only 2 × 104 km2, it emitted (5.9 ± 4.0) × 103 tons of carbon to the atmosphere every day. The estuaries and their plumes must be further studied for better understanding the role of coastal seas playing in the global oceanic carbon cycle. |
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| Keywords: | partial pressure of carbon dioxide spatial distribution sea-air exchange Changjiang Estuary Hangzhou Bay |
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