期刊论文

The Distribution of Partial Pressure of CO2 in the Bohai Sea in Summer

中文

中国海洋大学学报. 自然科学版

Periodical of Ocean University of China

1672-5174

2008

38

4

635-639

10.3969/j.issn.1672-5174.2008.04.019

国家自然科学基金项目(40476063)资助；

本校为其他机构

依据2006年8月对渤海的大面调查和2005年7月对莱州湾的现场实测得到的渤海表层海水二氧化碳分压(pCO_2)数据,结合水文、化学和生物等要素的同步观测资料,重点分析了夏季渤海表层海水pCO_2的分布特征,并讨论了CO_2的源/汇影响机制.调查结果表明:夏季渤海水-气界面pCO_2在313～1 118 μatm之间,平均值为537 μatm,在渤海中西部沿岸区域(119°E～120.5°E,38.5°N～40°N)和辽东湾外东部沿岸(120.7°E～121.2°E,39.9°N～40.1°N)存在大气CO_2的汇区,其面积大约占渤海面积的1/5,而渤海整体表现为大气CO_2的源.河流等陆源输入支持了源区pCO_2高值,而部分海域内水质较好,透明度高,浮游植物的生物活动...

In combination with the cogredient data of hydrology, chemistry and biology, the data of surface water CO2 partial pressure （pCO2） at grid stations in the Bohai Sea in August, 2006 and in Laizhou Bay in July, 2005, were used to discuss the distribution of the pCO2. The magnitude of pCO2 ranged from 313 to 1 118 μatm, and the mean was 537 μatm, which showed that the region wholly acted as a source of CO2 except the area along the western and central shore of the sea（38.5°N-40°N, 119°E-120.5°E）and the east of Liaodong Bay（39.9°N-40. 1...