秋季东海和南黄海表层海水CO_2体系各参数分布及海-气界面通量  

The Horizontal Distributions of CO_2 System Parameters and Sea-Air Flux in the North Yellow Sea and East China Sea in Autumn

作　　者：胡玉斌[1] 刘春颖[1] 杨桂朋[1] 张洪海[1] 

机构地区：[1]中国海洋大学化学化工学院,山东青岛266100

出　　处：《中国海洋大学学报（自然科学版）》2010年第2期73-78,共6页Periodical of Ocean University of China

基　　金：国家自然科学基金(40706040;40490263;40606023;40376022);山东省中青年科学家科研奖励基金(2007BS08015);山东省"泰山学者"建设工程专项经费资助

摘　　要：根据2007年11月在东海和南黄海海域表层海水测得的TCO2和TA数据,计算了表层海水pCO2,结合现场环境对表层海水CO2体系各参数的分布进行了讨论,探讨了pCO2与海水温度及叶绿素的相关性,利用Wanninkhof(1992)提出的通量模式并采用加权平均法估算了整个调查海域的海-气CO2的净通量。结果表明:观测海域表层海水CO2系统各参量的分布呈明显的不均匀性,在水团的混合处往往是各参量的高值或低值中心。由相关性分析可知,pCO2的分布主要受海水温度的影响,生物活动的影响较弱。受秋季较大风速的影响,调查海域表现为强的CO2源,秋季可向大气释放CO2约为556×104tC。Based on the investigated data of TCO2 and TA in the South Yellow Sea and East China Sea obtained during the Nov. 2007, the pCO2 data are calculated. The horizontal distributions of CO2 system parameters are discussed with the environmental factors, and the relationships between the pCO2 and seawater temperature and chl-a are also discussed. Finally, the net sea-air flux of CO2 is estimated by using the Wanninkhof（1992） flux model. The results show that the distributions of the CO2 system are uneven, especially in the regions where two or more water bulks mix, which also indicate the highest or lowest concentrations of the CO2 system parameters. In autumn, the distribution of pCO2 is mainly effected by the temperature rather than the biological activity. The results also suggest that the research area is a strong source of CO2 in autumn, which releases 556 ×10^4 t into the atmosphere.

关 键 词：秋季 东海 南黄海 二氧化碳体系 通量 

分 类 号：P734[天文地球—海洋化学]